Please enter a valid full or partial manufacturer part number with a minimum of 3 letters or numbers

    C8051F931 Search Results

    SF Impression Pixel

    C8051F931 Price and Stock

    Silicon Laboratories Inc C8051F931-G-GMR

    IC MCU 8BIT 64KB FLASH 24QFN
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey C8051F931-G-GMR Reel 13,500 1,500
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 $2.625
    Buy Now
    C8051F931-G-GMR Cut Tape 1,291 1
    • 1 $5.62
    • 10 $5.048
    • 100 $4.136
    • 1000 $3.52086
    • 10000 $3.52086
    Buy Now
    C8051F931-G-GMR Digi-Reel 1
    • 1 $5.62
    • 10 $5.048
    • 100 $4.136
    • 1000 $3.52086
    • 10000 $3.52086
    Buy Now
    Mouser Electronics C8051F931-G-GMR 3,815
    • 1 $4.95
    • 10 $4.53
    • 100 $4
    • 1000 $2.97
    • 10000 $2.62
    Buy Now
    Newark C8051F931-G-GMR Cut Tape 1
    • 1 $5.15
    • 10 $4.7
    • 100 $4.16
    • 1000 $3.09
    • 10000 $3.09
    Buy Now
    Symmetry Electronics C8051F931-G-GMR 1
    • 1 $2.79
    • 10 $2.79
    • 100 $2.79
    • 1000 $2.79
    • 10000 $2.79
    Buy Now

    Silicon Laboratories Inc C8051F931-G-GM

    IC MCU 8BIT 64KB FLASH 24QFN
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey C8051F931-G-GM Tube 1,483 1
    • 1 $3.95
    • 10 $3.549
    • 100 $2.90747
    • 1000 $2.625
    • 10000 $2.625
    Buy Now
    Mouser Electronics C8051F931-G-GM 6,448
    • 1 $3.12
    • 10 $2.63
    • 100 $2.63
    • 1000 $2.63
    • 10000 $2.56
    Buy Now
    Verical C8051F931-G-GM 711 3
    • 1 -
    • 10 $1.642
    • 100 $1.642
    • 1000 $1.642
    • 10000 $1.635
    Buy Now
    Arrow Electronics C8051F931-G-GM 711 12 Weeks 1
    • 1 $1.751
    • 10 $1.642
    • 100 $1.642
    • 1000 $1.642
    • 10000 $1.635
    Buy Now
    Newark C8051F931-G-GM Bulk 1
    • 1 $3.96
    • 10 $3.36
    • 100 $3
    • 1000 $2.74
    • 10000 $2.74
    Buy Now
    Chip1Stop C8051F931-G-GM 711
    • 1 $3.35
    • 10 $2.65
    • 100 $2.65
    • 1000 $2.65
    • 10000 $2.65
    Buy Now
    Symmetry Electronics C8051F931-G-GM 1
    • 1 $2.79
    • 10 $2.79
    • 100 $2.79
    • 1000 $2.79
    • 10000 $2.79
    Buy Now

    Silicon Laboratories Inc C8051F931-GM

    IC MCU 8BIT 64KB FLASH 24QFN
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey C8051F931-GM Tray
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Buy Now

    Silicon Laboratories Inc C8051F931-GMR

    IC MCU 8BIT 64KB FLASH 24QFN
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey C8051F931-GMR Reel
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Buy Now

    Silicon Laboratories Inc C8051F931-F-GM

    IC MCU 8BIT 64KB FLASH 24QFN
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey C8051F931-F-GM Tube
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Buy Now

    C8051F931 Datasheets (6)

    Part ECAD Model Manufacturer Description Curated Type PDF
    C8051F931-F-GM Silicon Laboratories Embedded - Microcontrollers, Integrated Circuits (ICs), MCU 64KB FLASH 10BIT ADC 24QFN Original PDF
    C8051F931-F-GMR Silicon Laboratories Embedded - Microcontrollers, Integrated Circuits (ICs), IC MCU 64KB FLASH 24QFN Original PDF
    C8051F931-G-GM Silicon Laboratories Embedded - Microcontrollers, Integrated Circuits (ICs), IC MCU 8BIT 64KB FLASH 24QFN Original PDF
    C8051F931-G-GMR Silicon Laboratories Embedded - Microcontrollers, Integrated Circuits (ICs), IC MCU 8BIT 64KB FLASH 24QFN Original PDF
    C8051F931-GM Silicon Laboratories Embedded - Microcontrollers, Integrated Circuits (ICs), IC 8051 MCU 64K FLASH 24-QFN Original PDF
    C8051F931-GMR Silicon Laboratories Embedded - Microcontrollers, Integrated Circuits (ICs), IC MCU 64KB FLASH 24-QFN Original PDF

    C8051F931 Datasheets Context Search

    Catalog Datasheet MFG & Type PDF Document Tags

    c8051f

    Abstract: c8051f920 C8051F912 C8051F9 "embedded systems" firmware Silicon Systems C8051F980 AN359 C8051F921 C8051F930
    Text: AN359 D EBUGGING TECHNIQUES FOR THE C8051F9 XX F A MI L Y Relevant Devices This application note applies to the following devices: C8051F930, C8051F931, C8051F920, C8051F921, C8051F912, C8051F911, C8051F902, C8051F901, C8051F980, C8051F981, C8051F982, C8051F983, C8051F985, C8051F986, C8051F987, C8051F988,


    Original
    PDF AN359 C8051F9 C8051F930, C8051F931, C8051F920, C8051F921, C8051F912, C8051F911, C8051F902, C8051F901, c8051f c8051f920 C8051F912 "embedded systems" firmware Silicon Systems C8051F980 AN359 C8051F921 C8051F930

    40 MHZ OSCILLATOR

    Abstract: C8051F920-GQ QFN-32 c8051f931 32 MHZ OSCILLATOR c8051f920 C8051F921 C8051F930-GQ CIP-51 c8051f931-gm
    Text: C8051F931 Single/Dual Battery, 0.9-3.6 V, 64 kB, smaRTClock, 10-Bit ADC MCU Supply Voltage: 0.9 to 3.6 V - One-cell mode supports 0.9–1.8 V operation - Two-cell mode supports 1.8–3.6 V operation - Built-in dc-dc converter with 1.8 –3.3 V output 65 mW max for


    Original
    PDF C8051F931 10-Bit 16-bit C8051F9xx C8051F930-GQ C8051F930-GM C8051F931-GM C8051F920-GQ C8051F920-GM 40 MHZ OSCILLATOR C8051F920-GQ QFN-32 c8051f931 32 MHZ OSCILLATOR c8051f920 C8051F921 C8051F930-GQ CIP-51 c8051f931-gm

    C8051F921

    Abstract: C8051F912 AN358 Silabs C8051F920 c8051f930_lib "embedded systems" firmware AN358 design rules C8051*930 CRYSTAL 20 mhZ
    Text: AN358 O PTIMIZING L OW - P OWER O PERATION OF T H E C8051F9 X X Relevant Devices This application note applies to the following devices: C8051F930, C8051F931, C8051F920, C8051F921, C8051F912, C8051F911, C8051F902, C8051F901, C8051F990, C8051F991, C8051F996, C8051F997, C8051F980, C8051F981, C8051F982, C8051F983,


    Original
    PDF AN358 C8051F9 C8051F930, C8051F931, C8051F920, C8051F921, C8051F912, C8051F911, C8051F902, C8051F901, C8051F921 C8051F912 AN358 Silabs C8051F920 c8051f930_lib "embedded systems" firmware AN358 design rules C8051*930 CRYSTAL 20 mhZ

    IDE-8051

    Abstract: C8051F930 CR2032 button cell holder CP2103 C8051F921 Silabs C8051*930 Coin Detectors AN104 C8051F920
    Text: C8051F930-DK C8051F930 D EVELOPMENT K IT U S E R ’ S G UIDE 1. Relevant Devices The C8051F930 Development Kit is intended as a development platform for the microcontrollers in the C8051F93x-C8051F92x MCU family. The members of this MCU family are C8051F930, C8051F931, C8051F920,


    Original
    PDF C8051F930-DK C8051F930 C8051F93x-C8051F92x C8051F930, C8051F931, C8051F920, C8051F921. LQFP32 IDE-8051 CR2032 button cell holder CP2103 C8051F921 Silabs C8051*930 Coin Detectors AN104 C8051F920

    C8051F930

    Abstract: C8051F912 F90X F91X C8051F93 C8051*930 Silabs C8051F921 F912 AN431
    Text: AN431 C8051F93 X - C8051F 9 0 X S OFTWA RE P ORTING G U I D E Relevant Devices This application note applies to the following devices: C8051F930, C8051F931, C8051F920, C8051F921, C8051F912, C8051F911, C8051F902, C8051F901 1. Introduction 2. Key Points Microcontrollers in the C8051F93x-C8051F90x product


    Original
    PDF AN431 C8051F93 C8051F C8051F930, C8051F931, C8051F920, C8051F921, C8051F912, C8051F911, C8051F902, C8051F930 C8051F912 F90X F91X C8051*930 Silabs C8051F921 F912 AN431

    C8051F930

    Abstract: 12AGND12 Coin Detectors coin cell pc battery holders CR2032 button cell holder C8051F921 Silabs C8051 C8051*930 iar 8051 examples
    Text: C8051F930-DK C8051F930 D EVELOPMENT K IT U S E R ’ S G UIDE 1. Relevant Devices The C8051F930 Development Kit is intended as a development platform for the microcontrollers in the C8051F93x-C8051F92x MCU family. The members of this MCU family are C8051F930, C8051F931, C8051F920,


    Original
    PDF C8051F930-DK C8051F930 C8051F93x-C8051F92x C8051F930, C8051F931, C8051F920, C8051F921. LQFP32 12AGND12 Coin Detectors coin cell pc battery holders CR2032 button cell holder C8051F921 Silabs C8051 C8051*930 iar 8051 examples

    microcontroller 8051 application traffic light

    Abstract: traffic light using 8051 MCS-51 Macro Assembler Users Guide intel MCS-51 PROGRAMMER GUIDE INSTRUCTION circuit diagram of inverting adder UE468 VACUUM TUBE DATASHEET sf 128d mcs 96 programming intel MCS-51 PROGRAMMERS GUIDE INSTRUCTION SET C8051F920-GQ
    Text: C8051F93x-C8051F92x Single/Dual Battery, 0.9–3.6 V, 64/32 kB, smaRTClock, 10-Bit ADC MCU Supply Voltage 0.9 to 3.6 V - One-Cell Mode supports 0.9 to 1.8 V operation - Two-Cell Mode supports 1.8 to 3.6 V operation - Built-in dc-dc converter with 1.8 to 3.3 V output for


    Original
    PDF C8051F93x-C8051F92x 10-Bit microcontroller 8051 application traffic light traffic light using 8051 MCS-51 Macro Assembler Users Guide intel MCS-51 PROGRAMMER GUIDE INSTRUCTION circuit diagram of inverting adder UE468 VACUUM TUBE DATASHEET sf 128d mcs 96 programming intel MCS-51 PROGRAMMERS GUIDE INSTRUCTION SET C8051F920-GQ

    8051 f310

    Abstract: em 154* "stepping motor" C8051F020-GQ c8051f350 adc code example c8051f130-gq AN191 c8051f531a C8051F502-IM silabs f411 C8051F348
    Text: High-Performance Mixed-Signal Microcontrollers Mixed-Signal MCUs Copyright 2008 by Silicon Laboratories Rev 0.6 1 2 Copyright © 2008 by Silicon Laboratories Rev 0.6 Precision Mixed-Signal Table of Contents Product Selector Guide . . . . . . . . . 5 Package Sizes . . . . . . . . . . . . . . . . 10


    Original
    PDF C8051F500 C8051F501 C8051F502 C8051F503 C8051F504 C8051F505 C8051F506aboratories 8051 f310 em 154* "stepping motor" C8051F020-GQ c8051f350 adc code example c8051f130-gq AN191 c8051f531a C8051F502-IM silabs f411 C8051F348

    sil f330

    Abstract: ultrasonic sensor with 8051 interfacing 8051 with fire sensor rs232 to I2c measurement of voltage using adc C8051F350 Wired / Wireless Smoke Detector 16x16 LED Matrix smoke detector schematic diagrams interfacing 8051 with smoke sensor GSM home automation circuit diagram
    Text: INDUSTRIAL APPLICATIONS SILICON LABS SOLUTIONS GUIDE 2009 S  mart Metering / Intelligent Home Solutions / Motor Control Industrial Automation SM A RT METERING Silicon Labs’ mixed-signal solutions for industrial applications offer a compelling combination of reliability,


    Original
    PDF APP-IND-2009A Si84xx C8051F411 Si846x Si842x sil f330 ultrasonic sensor with 8051 interfacing 8051 with fire sensor rs232 to I2c measurement of voltage using adc C8051F350 Wired / Wireless Smoke Detector 16x16 LED Matrix smoke detector schematic diagrams interfacing 8051 with smoke sensor GSM home automation circuit diagram

    gh 311 interfacing with 8052

    Abstract: C8051F93x-C8051F92x laser alarm by 8051 microcontroller c8051f920 tcon 8 c8051f920-gm C8051*930 C8051F920-GQ C8051F921 C8051F930
    Text: C8051F93x-C8051F92x Single/Dual Battery, 0.9–3.6 V, 64/32 kB, SmaRTClock, 10-Bit ADC MCU Supply Voltage 0.9 to 3.6 V - One-Cell Mode supports 0.9 to 1.8 V operation - Two-Cell Mode supports 1.8 to 3.6 V operation - Built-in dc-dc converter with 1.8 to 3.3 V output for


    Original
    PDF C8051F93x-C8051F92x 10-Bit gh 311 interfacing with 8052 C8051F93x-C8051F92x laser alarm by 8051 microcontroller c8051f920 tcon 8 c8051f920-gm C8051*930 C8051F920-GQ C8051F921 C8051F930

    sil f330

    Abstract: sil f331 SIL T630 8051 f310 SIL F330 QFN20 C8051T602 C8051F120DK C8051F350DK C8051F360 samples C8051F544
    Text: MICROCONTROLLER PRODUCT SELECTOR GUIDE www.silabs.com Robust Tools, Software and Support Our developer ecosystem ensures that you’ll have everything you need to hit the ground running. Advanced debug features enable you to fully develop and integrate hardware and software design.


    Original
    PDF SEL-MCU-2010L sil f330 sil f331 SIL T630 8051 f310 SIL F330 QFN20 C8051T602 C8051F120DK C8051F350DK C8051F360 samples C8051F544

    MPQ-C2

    Abstract: No abstract text available
    Text: Systems RPM January, 2014 Corporation Redmond, Washington USA MPQ-C2 Four Port In-System Programmer for Silicon Labs C8051F/Si10xx The MPQ-C2 is another addition to RPM’s family of dedicated in-system device programmers. Like all MPQ’s, it is designed to be reliable, efficient, flexible and


    Original
    PDF C8051F/Si10xx 60VDC 240VAC, 50/60Hz AVR32 MPQ-C2

    schematic diagram atx Power supply 500w

    Abstract: pioneer PAL 012A 1000w inverter PURE SINE WAVE schematic diagram 600va numeric ups circuit diagrams winbond bios 25064 TLE 9180 infineon smsc MEC 1300 nu TBE schematic diagram inverter 2000w DK55 circuit diagram of luminous 600va UPS
    Text: QUICK INDEX NEW IN THIS ISSUE! Detailed Index - See Pages 3-24 Digital Signal Processors, iCoupler , iMEMS® and iSensor . . . . . 805, 2707, 2768-2769 Connectors, Cable Assemblies, IC Sockets . . . . . . . . . . . 28-568 RF Connectors . . . . . . . . . . . . . . . . . . . . . . Pages 454-455


    Original
    PDF P462-ND P463-ND LNG295LFCP2U LNG395MFTP5U US2011) schematic diagram atx Power supply 500w pioneer PAL 012A 1000w inverter PURE SINE WAVE schematic diagram 600va numeric ups circuit diagrams winbond bios 25064 TLE 9180 infineon smsc MEC 1300 nu TBE schematic diagram inverter 2000w DK55 circuit diagram of luminous 600va UPS

    FSQ510 Equivalent

    Abstract: BTA12 6008 bta16 6008 ZIGBEE interface with AVR ATmega16 Precision triac control thermostat thyristor t 558 f eupec gw 5819 diode transistor a564 A564 transistor BSM25GP120 b2
    Text: SEMICONDUCTORS MCU/MPU/DSP Atmel. . . . . . . . . 167, 168, 169, 170, 171, 172 Blackhawk. . . . . . . . . . . . . . . . . . . . . . . . . 173 Cyan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174 Cypress. . . . . . . . . . . . . . . 175, 176, 177, 178


    Original
    PDF GP-20) FSQ510 Equivalent BTA12 6008 bta16 6008 ZIGBEE interface with AVR ATmega16 Precision triac control thermostat thyristor t 558 f eupec gw 5819 diode transistor a564 A564 transistor BSM25GP120 b2

    Si1120

    Abstract: LED LEVEL METER DRIVER PRX50 Si11 simple proximity detector "Photo Interrupter" sharp high resolution reflective photo interrupter Infrared light human detection Occupancy Sensor PRX400
    Text: S i 1120 P ROXIMITY / A MBIENT L IGHT S ENSOR W I T H PWM O UTPUT Features Pin Assignments Typically 50 cm meter proximity  High EMI immunity without range with single pulse shielded packaging  Seven precision optical  Power supply: 2.2–3.7 V measurement modes:


    Original
    PDF Si1120 Si1120 LED LEVEL METER DRIVER PRX50 Si11 simple proximity detector "Photo Interrupter" sharp high resolution reflective photo interrupter Infrared light human detection Occupancy Sensor PRX400

    near IR sensors with daylight filter

    Abstract: obstacle detection with ir sensors human detection robot using pir sensor circuit blue light PHOTOdetector paper obstacle detection robot simple proximity detector using transistor car window obstacle sensors Si11xx IR MOTION DETECTOR Si1102
    Text: AN442 S i 11 0 2 AND S i 112 0 D E S I G N E R ’ S G U I D E 1. Introduction The Si1102 and Si1120 are low-cost, high-performance, active-optical reflectance-based proximity sensors. Both drive an LED to illuminate a target, then measure the reflectance from the target to determine its proximity.


    Original
    PDF AN442 Si1102 Si1120 near IR sensors with daylight filter obstacle detection with ir sensors human detection robot using pir sensor circuit blue light PHOTOdetector paper obstacle detection robot simple proximity detector using transistor car window obstacle sensors Si11xx IR MOTION DETECTOR

    Capacitive Touch Sense Switch

    Abstract: EDGE-MEC1-108-02-F-D-EM2 SA-TS054PCB-000 touch switch on off Capacitive Touch Sense AN338 iar 8051 examples Silabs C8051F330 toolstick usb to 40 pins ide adapter schematic
    Text: ToolStick-CapTouchSenseDC TO O L S TICK C AP TO U C H S E N S E D A U G H T E R C A R D U S E R ’ S G U I D E 1. Handling Recommendations To enable development, the ToolStick Base Adapter and daughter cards are distributed without any protective plastics. To prevent damage to the devices and/or the host PC, please take into consideration the following


    Original
    PDF

    PRX400

    Abstract: infrared photodiode PRX50H Si1120 C8051F931 PRX50
    Text: S i 1120 P ROXIMITY / A MBIENT L IGHT S ENSOR W I T H PWM O UTPUT Features Pin Assignments Typically 50 cm meter proximity  High EMI immunity without range with single pulse shielded packaging  Seven precision optical  Power supply: 2.2–3.7 V measurement modes:


    Original
    PDF Si1120 PRX400 infrared photodiode PRX50H C8051F931 PRX50

    QSOP24

    Abstract: QFN24 20pin QFN 3x3 Uart to i2c converter QFN-24 C8051F996 QSOP-24 C8051F912 C8051F996DK C8051F981
    Text: C8051F98x Ultra Low Power, High-Performance MCU Ultra-Low Power - 150 µA/MHz active current from 1.8–3.6 V @ 25 MHz - 10 nA sleep current with data retention; BOD disabled - 50 nA sleep current with data retention; BOD enabled - 300 nA sleep current with smaRTClock internal oscillator


    Original
    PDF C8051F98x inte051F996DK C8051F996DK QSOP24 QFN24 20pin QFN 3x3 Uart to i2c converter QFN-24 C8051F996 QSOP-24 C8051F912 C8051F981

    20pin QFN 3x3

    Abstract: QFN24 QSOP24 C8051F996DK QFN20 6*4 C8051F981 C8051F987 QFN-24 C8051F990 QSOP-24
    Text: C8051F99x 25 MIPS, 8 kB Flash, Ultra Low Power, Capacitive Sensing MCU Capacitance to Digital Converter - Supports buttons, sliders, wheels, and capacitive proximity - High-Speed 8051 µC Core - Pipe-lined instruction architecture; executes 70% of instructions


    Original
    PDF C8051F99x 16-bit curre8051F996DK C8051F996DK 20pin QFN 3x3 QFN24 QSOP24 QFN20 6*4 C8051F981 C8051F987 QFN-24 C8051F990 QSOP-24

    Untitled

    Abstract: No abstract text available
    Text: C8051F93x-C8051F92x Single/Dual Battery, 0.9–3.6 V, 64/32 kB, SmaRTClock, 10-Bit ADC MCU Supply Voltage 0.9 to 3.6 V - One-Cell Mode supports 0.9 to 1.8 V operation - Two-Cell Mode supports 1.8 to 3.6 V operation - Built-in dc-dc converter with 1.8 to 3.3 V output for


    Original
    PDF C8051F93x-C8051F92x 10-Bit

    Si32176

    Abstract: si3217 Si32171 SIL F330 Si32178 Si3239 si2167 Si4735 SI3205 Si32177
    Text: PRODUCT SELECTOR GUIDE T0 RAM ROM Expansion Control ALE /PSEN I/O ports P3 P2 P1 P0 T1 Timers Serial Port TxD FA L L 2 010 High-Performance, Analog-Intensive, Mixed-Signal ICs www.silabs.com RxD PRODUCT SELECTOR GUIDE Product Selector Tables GET FULL PRODUCT LISTINGS, DATA SHEETS, APP NOTES, SAMPLES AND MORE AT www.silabs.com


    Original
    PDF Si4702/03 Si4703 SEL-FUL-2010R C8051F411 Si846x Si842x Si32176 si3217 Si32171 SIL F330 Si32178 Si3239 si2167 Si4735 SI3205 Si32177

    tegra 2

    Abstract: tegra reference design tegra 2 tegra 3 tegra 2 memory C8051F93 C8051F920-GQ C8051F930-TB ProSLIC Capacitive Touch Sense
    Text: Low-Voltage/Low-Power g MCU Solutions from Silicon Labs Silicon Labs Company Background • Founded in 1996 to design innovative mixed-signal ICs  More than 2 billion mixed-signal ICs shipped • Established global leader  725 Employees p y  800 patents issued or pending


    Original
    PDF C8051F930DK ToolStick931DC ToolStick930QPP, ToolStick930MPP, ToolStick931PP C8051F9xx tegra 2 tegra reference design tegra 2 tegra 3 tegra 2 memory C8051F93 C8051F920-GQ C8051F930-TB ProSLIC Capacitive Touch Sense

    C8051F921

    Abstract: 40 MHZ OSCILLATOR 2 pin crystal oscillator 24.5 mhz 32 KB SRAM C8051F920-GQ 4 MHz Oscillator 8051 Family with internal ADC C8051F930-GQ cmos oscillator QFN-64
    Text: C8051F921 Single/Dual Battery, 0.9-3.6 V, 32 kB, smaRTClock, 10-Bit ADC MCU Supply Voltage: 0.9 to 3.6 V - One-cell mode supports 0.9–1.8 V operation - Two-cell mode supports 1.8–3.6 V operation - Built-in dc-dc converter with 1.8 –3.3 V output 65 mW max for


    Original
    PDF C8051F921 10-Bit 16-bit C8051F9xx C8051F930-GQ C8051F930-GM C8051F931-GM C8051F920-GQ C8051F920-GM C8051F921 40 MHZ OSCILLATOR 2 pin crystal oscillator 24.5 mhz 32 KB SRAM C8051F920-GQ 4 MHz Oscillator 8051 Family with internal ADC C8051F930-GQ cmos oscillator QFN-64