Digchip : Database on electronics components
Electronics components database

Details, datasheet, quote on part number: AT89S51
Part numberAT89S51
CategoryMicrocontrollers => 8051 Architecture
Title8051 Architecture
Description8-bit Microcontroller With 4K Bytes In-system Programmable Flash
CompanyATMEL Corporation
DatasheetDownload AT89S51 datasheet
Request For QuoteFind where to buy AT89S51

Specifications, Features, Applications
· Compatible with MCS-51® Products· 4K Bytes of In-System Programmable (ISP) Flash Memory·

­ Endurance: 1000 Write/Erase Cycles to 5.5V Operating Range Fully Static Operation: to 33 MHz Three-level Program Memory Lock x 8-bit Internal RAM 32 Programmable I/O Lines Two 16-bit Timer/Counters Six Interrupt Sources Full Duplex UART Serial Channel Low-power Idle and Power-down Modes Interrupt Recovery from Power-down Mode Watchdog Timer Dual Data Pointer Power-off Flag Fast Programming Time Flexible ISP Programming (Byte and Page Mode)


The is a low-power, high-performance CMOS 8-bit microcontroller with 4K bytes of in-system programmable Flash memory. The device is manufactured using Atmel's high-density nonvolatile memory technology and is compatible with the industry-standard 80C51 instruction set and pinout. The on-chip Flash allows the program memory to be reprogrammed in-system by a conventional nonvolatile memory programmer. By combining a versatile 8-bit CPU with in-system programmable Flash on a monolithic chip, the Atmel is a powerful microcontroller which provides a highly-flexible and cost-effective solution to many embedded control applications. The AT89S51 provides the following standard features: 4K bytes of Flash, 128 bytes of RAM, 32 I/O lines, Watchdog timer, two data pointers, two 16-bit timer/counters, a fivevector two-level interrupt architecture, a full duplex serial port, on-chip oscillator, and clock circuitry. In addition, the AT89S51 is designed with static logic for operation down to zero frequency and supports two software selectable power saving modes. The Idle Mode stops the CPU while allowing the RAM, timer/counters, serial port, and interrupt system to continue functioning. The Power-down mode saves the RAM contents but freezes the oscillator, disabling all other chip functions until the next external interrupt or hardware reset.

8-bit Microcontroller with 4K Bytes In-System Programmable Flash AT89S51

P1.3 P1.4 (MOSI) P1.5 (MISO) P1.6 (SCK) P1.7 RST (RXD) P3.0 (TXD) (T1) P3.5 (WR) P3.6 (RD) XTAL2 XTAL1 GND VCC P0.7 (AD7) EA/VPP ALE/PROG PSEN P2.0 (A8)


Related products with the same datasheet
AT89S51-24AC   AT89S51-24AI   AT89S51-24JC   AT89S51-24JI   AT89S51-24PC   AT89S51-24PI  
AT89S51-33AC   AT89S51-33JC   AT89S51-33PC  

Some Part number from the same manufacture ATMEL Corporation
AT89S51-24AC 8-bit Microcontroller With 4K Bytes In-system Programmable Flash
AT89S51-24SC 8-bit Microcontroller With 4k Bytes In-system Programmable Flash
AT89S51-33AC 8-bit Microcontroller With 4K Bytes In-system Programmable Flash
AT89S51-33SC 8-bit Microcontroller With 4k Bytes In-system Programmable Flash
AT89S52 8-bit Microcontroller With 8K Bytes In-system Programmable Flash
AT89S53 8-bit Microcontroller With 12k Bytes Flash
AT89S53-24JI 8-bit Microcontroller With12k Flash
AT89S53-24PC 8-bit Microcontroller With 12k Bytes Flash
AT89S53-24PI 8-bit Microcontroller With12k Flash
AT89S53-33 8-bit Microcontroller With 12k Bytes Flash
AT89S8252 8-bit Microcontroller With 8k Bytes Flash
AT89S8252-24JI 8-bit Microcontroller
AT89S8252-24QC 8-bit Microcontroller With 8k Bytes Flash
AT89SC Secure Microcontrollers For Smart Cards
AT89SC1616A 8-bit Flash Secure Microcontroller
AT89SCSDK Smart Card Development Kit (sdk)
AT89SCXXXXA 8-bit Flash Microcontroller For Smart Cards