首頁＞ATMEL 愛特梅爾＞8051結(jié)構(gòu)單片機(jī)

8051 結(jié)構(gòu)

愛特梅爾提供大量基于8051結(jié)構(gòu)的微控制器。產(chǎn)品系列包括MCS-51. 工業(yè)標(biāo)準(zhǔn)插口嵌入設(shè)備, 系統(tǒng)內(nèi)編程性能, 和小封裝20 腳衍生產(chǎn)品用于ROMless 、ROM 、OTP 及Flash flavors(參見網(wǎng)上選擇表) 。一些設(shè)備還利用了高速核心(X2) 方式，它依據(jù)選擇為CPU 和外圍設(shè)備加倍了內(nèi)部時鐘頻率。8051 種衍生產(chǎn)品還包括具有特殊功能的特殊應(yīng)用產(chǎn)品，以服務(wù)特定的市場:

CAN網(wǎng)絡(luò) MP3 應(yīng)用 智能卡讀卡器 USB 應(yīng)用 @Web 嵌入TCP/IP

愛特梅爾還提供基于強(qiáng)大的C251 結(jié)構(gòu)的8/16 位微控制器。我們的C251 設(shè)備允許通過升級現(xiàn)有的基于80C51 的應(yīng)用實現(xiàn)直接和方便的性能

C251 Architecture CAN Networking MCUs Flash (Reprogrammable) Flash ISP (In-System Programmable) Flash ISP - Single Cycle Core Lighting MCUs

MP3 Reader MCUs OTP (One-Time Programmable) ROM ROMless Smart Card Reader MCUs USB MCUs

ngDesc="http://www".bdtic.com/ATMEL> 8051結(jié)構(gòu)單片機(jī) Architecture產(chǎn)品參數(shù)表 8051結(jié)構(gòu)單片機(jī)停產(chǎn)系列

C251 Architecture
設(shè)備	描述	數(shù)據(jù)手冊datasheet下載
TSC80251G2D	8/16-bit微控制器與串行通訊接口-存儲器 - ROMless. 訂購型號：TSC80251G2D-24IB,TSC80251G2D-L16CB,TSC80251G2D-L16CE,TSC80251G2D,TSC80251G2D-16CB,TSC80251G2D-24CB,TSC80251G2D-24CE,TSC80251G2D-24IA,TSC80251G2D-24IB,TSC80251G2D-L16CB,TSC80251G2D-24CED,TSC80251G2D-L16CED,TSC80251G2D,TSC80251G2D-16CB,TSC80251G2D-24CB,TSC80251G2D-24IA	TSC80251G2D
TSC83251G2D	8/16-bit微控制器與串行通訊接口-存儲器 - 32Kbytes ROM. 訂購型號：TSC83251G2D-16CB,TSC83251G2D-24CB,TSC83251G2D-24CED,TSC83251G2D-24IA,TSC83251G2D-24IB,TSC83251G2D-L16CB,TSC83251G2D-L16CED	TSC83251G2D
TSC87251G2D	8/16-bit微控制器與串行通訊接口-存儲器 - 32Kbytes OTP。訂購型號：TSC87251G2D-24IB,TSC87251G2D-L16CB,TSC87251G2D-L16CED,TSC87251G2D,TSC87251G2D-16CB,TSC87251G2D-24CB,TSC87251G2D-24CED,TSC87251G2D-24IA,TSC87251G2D-24IA,TSC87251G2D-24IB,TSC87251G2D-L16CB,TSC87251G2D-L16CED,TSC87251G2D-24IC,TSC87251G2D-24IJ,TSC87251G2D-L16IC,TSC87251G2D,TSC87251G2D-16CB,TSC87251G2D-24CB,TSC87251G2D-24CED	TSC87251G2D
CAN Networking MCUs
設(shè)備	描述
AT89C51CC03	ATMEL 愛特梅爾 內(nèi)嵌CAN控制器的8位單片機(jī)和 64-Kbyte Flash存儲器. 2-Kbyte RAM 2-Kbyte EEPROM SPI. Power Fail Detect (no need for external brown- out). Pinout compatible with T89C51CC01. The AT89C51CC03 is also available in Automotive Quality grade. 訂購型號：AT89C51CC03,AT89C51CC03C-7CTIM,AT89C51CC03C-RDTIM,AT89C51CC03C-RLTIM,AT89C51CC03C-S3SIM,AT89C51CC03C-SLSIM,AT89C51CC03U-7CTIM,AT89C51CC03U-RDTIM,AT89C51CC03U-RLTIM,AT89C51CC03U-S3SIM,AT89C51CC03U-SLSIM	AT89C51CC03
AT89C51CC01 T89C51CC01	ATMEL 愛特梅爾 內(nèi)嵌CAN控制器的8位單片機(jī)和 32-Kbyte Flash存儲器 We recommend to implement an external brown out to prevent any Flash/EEPROM corruption during power-on or power-off. Please refer to related application note: External Brown-out Protection for C51 Microcontrollers with Active High Reset Input 。T89C51CC01訂購型號：T89C51CC01CA-RLTIM,T89C51CC01CA-SLSIM,T89C51CC01,T89C51CC01UA-7CTIM,T89C51CC01UA-RLTIM,T89C51CC01UA-SLSIM,T89C51CC01CA-7CTIM	AT89C51CC01 T89C51CC01
AT89C51CC02 T89C51CC02	Low pin count 8-bit microcontroller with CAN controller and 16-Kbyte Flash We recommend to implement an external brown out to prevent any Flash/EEPROM corruption during power-on or power-off. Please refer to related application note: External Brown-out Protection for C51 Microcontrollers with Active High Reset Input 。T89C51CC02訂購型號： T89C51CC02CA-RATIM,T89C51CC02CA-SISIM,T89C51CC02CA-TDSIM,T89C51CC02CA-TISIM,T89C51CC02UA-RATIM,T89C51CC02UA-SISIM,T89C51CC02UA-TDSIM	AT89C51CC02 T89C51CC02
Flash (Reprogrammable)
設(shè)備	描述
AT89C2051	2.7-Volt 80C31 Microcontroller with 2K bytes Flash 20-Pin Package 。AT89C2051訂購型號：AT89C2051-12PC,AT89C2051-12SC,AT89C2051-12PI,AT89C2051-12SI,AT89C2051-12PA,AT89C2051-12SA,AT89C2051-24PC,AT89C2051-24SC,AT89C2051-24PI,AT89C2051-24SI,AT89C2051,AT89C2051-12PU,AT89C2051-12SU,AT89C2051-24PU,AT89C2051-24SU	AT89C2051
AT89C4051	3Volt 80C31 Microcontroller with 4K bytes Flash 20-Pin Package 。AT89C4051 訂購型號：AT89C4051-24SI,AT89C4051,AT89C4051-12PU,AT89C4051-12SU,AT89C4051-24PU,AT89C4051-24SU,AT89C4051-12PC,AT89C4051-12SC,AT89C4051-12PI,AT89C4051-12SI,AT89C4051-12PA,AT89C4051-12SA,AT89C4051-24PC,AT89C4051-24SC,AT89C4051-24PI	AT89C4051
AT89C51RC	8-bit Microcontroller with 32K Bytes Flash 。AT89C51RC 訂購型號：AT89C51RC-24AC,AT89C51RC-24AI,AT89C51RC-24JC,AT89C51RC-24JI,AT89C51RC-24PC,AT89C51RC-24PI,AT89C51RC-33AC,AT89C51RC-33JC,AT89C51RC-33PC,AT89C51RC2,AT89C51RC2-3CSCM,AT89C51RC2-3CSIM,AT89C51RC2-SLSCM,AT89C51RC2-SLSIM,AT89C51RC2-RLTCM,AT89C51RC2-RLTIM,AT89C51RC2-SLSIL,AT89C51RC2-RLTIL,AT89C51RC	AT89C51RC
AT89C55WD	80C32 Microcontroller with 20K Bytes Flash 。 AT89C55WD 訂購型號：AT89C55WD-24JU,AT89C55WD-24PU,AT89C55WD-24PC,AT89C55WD-24PI,AT89C55WD-24JC,AT89C55WD-24AC,AT89C55WD-33PC,AT89C55WD-33JC,AT89C55WD-33AC,AT89C55WD-24AI,AT89C55WD-24JI,AT89C55WD,AT89C55WD-24AU	AT89C55WD
AT89LV55	2.7-Volt 80C32 Microcontroller with 20K bytes Flash 。AT89LV55 訂購型號：AT89LV55-12JC,AT89LV55-12PC,AT89LV55-12AI,AT89LV55-12JI,AT89LV55-12PI,AT89LV55,AT89LV55-12AC	AT89LV55
Flash ISP (In-System Programmable)
設(shè)備	描述
AT89C5115	Low-pin-count 8-bit Microcontroller with A/D Converter and 16K Bytes of Flash Memory We recommend to implement an external brown out to prevent any Flash/EEPROM corruption during power-on or power-off. Please refer to related application note: External Brown-out Protection for C51 Microcontrollers with Active High Reset Input 。	AT89C5115
AT89C51AC2	8-bit microcontroller with 32Kbyte Flash 2KByte EEPROM and 10-bit A/D converter We recommend to implement an external brown out to prevent any Flash/EEPROM corruption during power-on or power-off. Please refer to related application note: External Brown-out Protection for C51 Microcontrollers with Active High Reset Input 。	AT89C51AC2
AT89C51AC3	8-bit microcontroller with A/D converter and 64-Kbyte Flash. 2-Kbyte RAM 2-Kbyte EEPROM SPI. Power Fail Detect (no need for external brown- out). Pinout compatible with T89C51AC2. AT89C51AC3訂購型號：AT89C51AC3-RDTIM,AT89C51AC3-RLTIM,AT89C51AC3-S3SIM,AT89C51AC3-SLSIM,AT89C51AC3	AT89C51AC3
AT89C51ED2	High performance 8-bit microcontroller 64 Kbytes Flash 2 Kbytes EEPROM 。AT89C51ED2 訂購型號：AT89C51ED2-SLSIM,AT89C51ED2-RLTIM,AT89C51ED2-3CSIM,AT89C51ED2-SMSIM,AT89C51ED2-RDTIM,AT89C51ED2	AT89C51ED2
AT89C51IC2	AT89C51IC2 is a 80C51 8-bit microcontrollers featuring a 32K bytes Flash code memory and a two-wire interface (TWI)。 AT89C51IC2 訂購型號：AT89C51IC2-SLSUL,AT89C51IC2-SLSCM,AT89C51IC2-SLSIM,AT89C51IC2-RLTIM,AT89C51IC2-RLTIL,AT89C51IC2-SLSIL,AT89C51IC2,AT89C51IC2-SLSUM,AT89C51IC2-RLTUM,AT89C51IC2-RLTUL	AT89C51IC2
AT89C51ID2	High performance 8-bit microcontroller 64 Kbytes Flash 2 Kbytes EEPROM and Two Wire Interface (TWI)。AT89C51ID2訂購型號： AT89C51ID2-SLSIM,AT89C51ID2-RLTIM,AT89C51ID2,AT89C51ID2-SLSUM,AT89C51ID2-RLTUM,AT89C51ID2-IM,AT89C51ID2-UM	AT89C51ID2
AT89C51RB2	High performance 8-bit Microcontroller 16 kbytes Flash We recommend to implement an external brown out to prevent any Flash/EEPROM corruption during power-on or power-off. Please refer to related application note: External Brown-out Protection for C51 Microcontrollers with Active High Reset Input 。AT89C51RB2訂購型號：AT89C51RB2-3CSIM AT89C51RB2-SLSCM AT89C51RB2-SLSIM AT89C51RB2-RLTCM AT89C51RB2-RLTIM AT89C51RB2-SLSIL AT89C51RB2-RLTIL AT89C51RC2-3CSCM AT89C51RC2-3CSIM AT89C51RC2-SLSCM AT89C51RC2-SLSIM AT89C51RC2-RLTCM AT89C51RC2-RLTIM AT89C51RC2-SLSIL AT89C51RC2-RLTIL AT89C51RB2-3CSUM AT89C51RB2-SLSUM AT89C51RB2-RLTUM AT89C51RB2-SLSUL AT89C51RB2-RLTUL AT89C51RB2-RLTUM AT89C51RC2-3CSUM AT89C51RC2-SLSUM AT89C51RC2-RLTUM AT89C51RC2-SLSUL AT89C51RC2-RLTUL	AT89C51RB2
AT89C51RC2	High performance 8-bit microcontroller 32 Kbytes Flash We recommend to implement an external brown out to prevent any Flash/EEPROM corruption during power-on or power-off. Please refer to related application note: External Brown-out Protection for C51 Microcontrollers with Active High Reset Input 。AT89C51RC2訂購型號：AT89C51RB2-3CSIM AT89C51RB2-SLSCM AT89C51RB2-SLSIM AT89C51RB2-RLTCM AT89C51RB2-RLTIM AT89C51RB2-SLSIL AT89C51RB2-RLTIL AT89C51RC2-3CSCM AT89C51RC2-3CSIM AT89C51RC2-SLSCM AT89C51RC2-SLSIM AT89C51RC2-RLTCM AT89C51RC2-RLTIM AT89C51RC2-SLSIL AT89C51RC2-RLTIL AT89C51RB2-3CSUM AT89C51RB2-SLSUM AT89C51RB2-RLTUM AT89C51RB2-SLSUL AT89C51RB2-RLTUL AT89C51RB2-RLTUM AT89C51RC2-3CSUM AT89C51RC2-SLSUM AT89C51RC2-RLTUM AT89C51RC2-SLSUL AT89C51RC2-RLTUL	AT89C51RC2
AT89C51RD2	High performance 8-bit microcontroller with 64 Kbytes Flash 。AT89C51RD2訂購型號：AT89C51RD2-SLSIM,AT89C51RD2-RLTIM,AT89C51RD2-RDTIM,AT89C51RD2-SMSIM,AT89C51RD2	AT89C51RD2
AT89C51RE2	High performance 8-bit microcontroller with 128 Kbytes Flash	AT89C51RE2
AT89LS51	Low-Voltage Microcontroller with 4K Bytes In-System Programmable Flash	AT89LS51
AT89LS52	Low-Voltage Microcontroller with 8K Bytes In-System Programmable Flash	AT89LS52
AT89S2051	2.7-Volt 80C31 Microcontroller with 2K Bytes In-System Programmable Flash 20-pin Package.	AT89S2051
AT89S4051	2.7-Volt 80C31 Microcontroller with 4K Bytes In-System Programmable Flash 20-pin Package.	AT89S4051
AT89S51	8-bit Microcontroller with 4K Bytes In-System Programmable Flash 高性能CMOS 8 位單片機(jī),片內(nèi)含4k bytes 的可系統(tǒng)編程的Flash 只讀程序,訂購型號：AT89S51-24AC,AT89S51-24JC,AT89S51-24PC,AT89S51-24AI AT89S51-24JI AT89S51-24PI,AT89S51-33AC AT89S51-33JC,AT89S51-33PC	AT89S51
AT89S52	8-bit Microcontroller with 8K Bytes In-System Programmable Flash	AT89S52
AT89S8253	In-System Programmable Microcontroller with 12K bytes Flash 2K bytes EEPROM	AT89S8253
Flash ISP - Single Cycle Core
設(shè)備	描述
AT89LP213	2-Kbyte In-system Programmable Flash -- Single Cycle 8051 Microcontroller 128 Bytes RAM PWM SPI I/O = 12 Analog Comparator Internal RC Oscillator On-chip Debug	AT89LP213
AT89LP214	2-Kbyte In-system Programmable Flash -- Single Cycle 8051 Microcontroller 128 Bytes RAM UART SPI I/O = 12 Analog Comparator Internal RC Oscillator On-chip Debug	AT89LP214
AT89LP216	2-Kbyte In-system Programmable Flash -- Single Cycle 8051 Microcontroller 128 Bytes RAM PWM UART SPI I/O = 16,Analog Comparator,Internal RC Oscillator,On-chip Debug	AT89LP216
AT89LP2052	2-Kbyte In-system Flash -- Single-Cycle Microcontroller,256 Bytes RAM,SPI,PWM,20 MIPS Throughput at 20 MHz.. 4 KB version: AT89LP4052	AT89LP2052
AT89LP4052	4-Kbyte In-system Flash -- Single-Cycle Microcontroller 256 Bytes RAM,SPI PWM,20 MIPS Throughput at 20 MHz.. 2 KB version: AT89LP2052	AT89LP4052
Lighting MCUs
設(shè)備	描述
AT83EB5114	Dedicated to lighting control applications,the AT83EB5114 retains all the features of the standard 80C51 with 4 Kbytes ROM program memory,256 bytes RAM,256 bytes EEPROM,a 7-source,4-level interrupt system,an onchip oscillator and two timers/counters. Analog functions include a 10-bit,6 channels A/D converter and two optimized PWM units.	AT83EB5114
AT89EB5114	Dedicated to lighting control applications,the AT89EB5114 is the Flash version of the AT83EB5114 available for development purpose.	AT89EB5114
MP3 Reader MCUs
設(shè)備	描述
AT85C51SND3	Single-Chip Digital Music Player. Dual processor: proprietary audio DSP and 8051 for MMI. MP3,WMA and JPEG Decoder,USB controller supporting Full Speed,High Speed and OTG. MultiMediaCard? DataFlash? SmartMedia? CompactFlash?interfaces. OLED driver. 16-bit ADC. Audio DAC and DC/DC in option.	AT85C51SND3
AT89C51SND2C	Single-Chip MP3-Player for mobile phone market. C51 Microcontroller Core,MP3 Decoder (MPEG1&2Layer-3),64 Kbytes Flash. MultiMediaCard? DataFlash? SmartMedia? CompactFlash?and IDE Interfaces. UART,SPI and Two-wire Interface (TWI). USB 1.1. Audio Stereo DAC and 500mW Power Amplifier. Low Power. In-System Programming via USB or UART.	AT89C51SND2C
AT83SND2C	Single-Chip MP3-Player for mobile phone market. C51 Microcontroller Core,MP3 Decoder (MPEG1&2Layer-3),64 Kbytes ROM. MultiMediaCard? DataFlash? SmartMedia? CompactFlash?and IDE Interfaces. UART,SPI and Two-wire Interface (TWI). USB 1.1. Audio Stereo DAC and 500mW Power Amplifier. Low Power.	AT83SND2C
AT89C51SND1C	MP3 Decoder Circuit MPEG1 2Layer-3 C51 Microcontroller with Embedded MP3 Decoder and 64 Kbytes Flash. MultiMediaCard? DataFlash? SmartMedia? CompactFlash?and IDE Interfaces. UART,SPI and Two-wire Interface (TWI).USB 1.1. Voice Recording. Low Power. In-System Programming via USB or UART.	AT89C51SND1C
AT83SND1C	MP3 Decoder Circuit MPEG1&2Layer-3 C51 Microcontroller with Embedded MP3 Decoder and 64 Kbytes ROM. MultiMediaCard? DataFlash? SmartMedia? CompactFlash?and IDE Interfaces. UART SPI and Two-wire Interface (TWI). USB 1.1. Voice Recording. Low Power. In-System Programming via USB or UART.	AT83SND1C
AT80C51SND1C	MP3 Decoder Circuit MPEG1&2Layer-3 C51 Microcontroller with Embedded MP3 Decoder ROMless. MultiMediaCard? DataFlash? SmartMedia? CompactFlash?and IDE Interfaces. UART,SPI and Two-wire Interface (TWI).USB 1.1. Voice Recording. Low Power.	AT80C51SND1C
OTP (One-Time Programmable)
設(shè)備	描述
AT87C5103	Low Pin Count 8-bit microcontroller OTP	AT87C5103
AT87C51RB2 TS87C51RB2	High performance 8-bit microcontroller 16 Kbytes OTP	AT87C51RB2 TS87C51RB2
AT87C51RC2 TS87C51RC2	High performance 8-bit microcontroller 32 Kbytes OTP	AT87C51RC2 TS87C51RC2
AT87C51RD2 TS87C51RD2	High performance 8-bit microcontroller 64 Kbytes OTP	AT87C51RD2 TS87C51RD2
AT87C52X2 TS87C52X2	8-bit microcontroller 8 Kbytes OTP	AT87C52X2 TS87C52X2
AT87C54X2 TS87C54X2	8-bit microcontroller 16 Kbytes OTP	AT87C54X2 TS87C54X2
TS87C58X2	8-bit microcontroller 32 Kbytes OTP.	TS87C58X2
ROM
設(shè)備	描述
AT80C52X2 TS80C52X2	8-bit microcontroller 8 Kbytes ROM	AT80C52X2 TS80C52X2
AT80C54X2 TS80C54X2	8-bit microcontroller 16 Kbytes ROM	AT80C54X2 TS80C54X2
AT83C5103	Low Pin Count 8-bit microcontroller ROM	AT83C5103
AT83C51RB2	80C51 High Performance ROM 8-bit Microcontroller	AT83C51RB2
AT83C51RB2 TS83C51RB2	High performance 8-bit microcontroller 16 Kbytes ROM	AT83C51RB2 TS83C51RB2
AT83C51RC2	80C51 High Performance ROM 8-bit Microcontroller	AT83C51RC2
AT83C51RD2 TS83C51RD2	High performance 8-bit microcontroller 64 Kbytes OTP	AT83C51RD2 TS83C51RD2
TS80C58X2	8-bit microcontroller 32 Kbytes ROM	TS80C58X2
TS83C51RC2	High performance 8-bit microcontroller 32 Kbytes ROM	TS83C51RC2
ROMless
設(shè)備	描述
AT80C31X2	8-bit microcontroller ROMless	AT80C31X2
AT80C32X2 TS80C32X2	8-bit microcontroller ROMless	AT80C32X2 TS80C32X2
AT80C51RA2 TS80C51RA2	High performance 8-bit microcontroller ROMless	AT80C51RA2 TS80C51RA2
AT80C51RD2	80C51 High Performance 8-bit Microcontroller	AT80C51RD2
AT80C51RD2 TS80C51RD2	High performance 8-bit microcontroller ROMless	AT80C51RD2 TS80C51RD2
TS80C31X2	8-bit microcontroller ROMless	TS80C31X2
Smart Card Reader MCUs
設(shè)備	描述
AT83C5121 T83C5121	C51 Microcontroller with Serial Interface and Smart Card Reader Interfaces ISO7816 compliant DC/DC Converter and 16K bytes ROM. A pre-certified version of this product with GemCore software is available: AT83C21GC	AT83C5121 T83C5121
AT83C5122	C51 Microcontroller with 7-Endpoint USB Controller Smart Card Reader Interfaces ISO7816 compliant DC/DC Converter and 32K bytes ROM. A pre-certified version of this product with Omnikey software is available: AT83C22OK	AT83C5122
AT83C5123	C51 Microcontroller with 7-Endpoint USB Controller Smart Card Reader Interfaces ISO7816 compliant DC/DC Converter and 30K bytes ROM A pre-certified version of this product with Omnikey software is available: AT83C23OK	AT83C5123
AT83C5127	C51 Microcontroller with 7-Endpoint USB Controller Smart Card Reader Interfaces ISO7816 compliant DC/DC Converter and 16K bytes ROM.	AT83C5127
AT83EC5123	C51 Microcontroller with 7-Endpoint USB Controller Smart Card Reader Interfaces ISO7816 compliant DC/DC Converter and 30K bytes ROM and 512 bytes EEPROM data	AT83EC5123
AT85C5121 T85C5121	C51 Microcontroller with Serial Interface and Smart Card Reader Interfaces ISO7816 compliant DC/DC Converter and 16K bytes Code RAM. A pre-certified version of this product with GemCore software is available: AT83C21GC	AT85C5121 T85C5121
AT85C5122	C51 Microcontroller with 7-Endpoint USB Controller Smart Card Reader Interfaces ISO7816 compliant DC/DC Converter and 32K bytes Code RAM. A pre-certified version of this product with Omnikey software is available: AT83C22OK	AT85C5122
AT85EC5122	C51 Microcontroller with 7-Endpoint USB Controller Smart Card Reader Interfaces ISO7816 compliant DC/DC Converter and 32K bytes Code RAM 512 Bytes EEPROM	AT85EC5122
AT89C5121 T89C5121	C51 Microcontroller with Serial Interface and Smart Card Reader Interfaces ISO7816 compliant DC/DC Converter and 16K bytes Flash RAM. A pre-certified version of this product with GemCore software is available: AT83C21GC	AT89C5121 T89C5121
USB MCUs
設(shè)備	描述
AT89C5130A-M	USB C51-based Microcontroller with 16K Bytes Flash 1K Byte Data EEPROM 1280 bytes RAM Extended Range Power Supply: 2.7V to 5.5V 7 USB Endpoints TWI SPI UART PCA	AT89C5130A-M
AT89C5131A-L	USB C51-based Microcontroller with 32K Bytes Flash 1K Byte Data EEPROM 1280 bytes RAM Low Voltage Range Power Supply: 3.0V to 3.6V 7 USB Endpoints TWI SPI UART PCA. Recommended device with extended voltage range: AT89C5131A-M (2.7-5.5V).	AT89C5131A-L
AT89C5131A-M	USB C51-based Microcontroller with 32K Bytes Flash 1K Byte Data EEPROM 1280 bytes RAM Extended Range Power Supply: 2.7V to 5.5V 7 USB Endpoints TWI SPI UART PCA	AT89C5131A-M
AT89C5132	USB C51-based Microcontroller with 64K Bytes Flash 2304 bytes RAM 4 USB Endpoints SPI UART IDE TWI MultiMediaCard DataFlash I2S 10-bit ADC.	AT89C5132