Atmel AT89C55WD
The AT89C55WD is a low-power, high-performance CMOS 8-bit microcontroller with 20K bytes of Flash programmable read only memory and 256 bytes of RAM. The device is manufactured using Atmel’s high-density nonvolatile memory technology and is compatible with the industry standard 80C51 and 80C52 instruction set and pinout. The on-chip Flash allows the program memory to be user programmed by a conventional nonvolatile memory programmer.| Part No. | AT89C55WD |
|---|---|
| Datasheet | AT89C55WD Download |
| Manufacturer |  Atmel |
| Description | 8-bit Microcontroller |
| Buy | Stock & Price |
FEATURES
● Compatible with MCS®-51 Products● 20K Bytes of Reprogrammable Flash Memory
● Endurance: 10,000 Write/Erase Cycles
● 4V to 5.5V Operating Range
● Fully Static Operation: 0 Hz to 33 MHz
● Three-level Program Memory Lock
● 256 x 8-bit Internal RAM
● 32 Programmable I/O Lines
● Three 16-bit Timer/Counters
● Eight Interrupt Sources
● Programmable Serial Channel
● Low-power Idle and Power-down Modes
● Interrupt Recovery from Power-down Mode
● Hardware Watchdog Timer
● Dual Data Pointer
● Power-off Flag
● Green (Pb/Halide-free) Packaging Option 1.
DESCRIPTION
By combining a versatile 8-bit CPU with Flash on a monolithic chip, the Atmel AT89C55WD is a powerful microcomputer which provides a highly flexible and cost effective solution to many embedded control applications. The AT89C55WD provides the following standard features: 20K bytes of Flash, 256 bytes of RAM, 32 I/O lines, three 16-bit timer/counters, a six-vector, two-level interrupt architecture, a full-duplex serial port, on-chip oscillator, and clock circuitry.
