AT89C55WD 8-bit 20k Flash Microcontroller ICs

The AT89C55WD is a Low-power, high-performance CMOS 8-bit microcontroller with 20KB of flash programmable ROM and 256 bytes of RAM. The device is manufactured using Microchip high-density nonvolatile memory technology and is compatible with the industry standard 80C51 and 80C52 instruction set and pinout.

On-chip flash allows the program memory to be user programmed by a conventional nonvolatile memory programmer. This versatile 8-bit CPU with flash is a highly flexible and cost-effective solution for many embedded control applications.

Features:

1. Compatible with MCS®-51 Products
2. 20K Bytes of Reprogrammable Flash Memory
3. Endurance: 10,000 Write/Erase Cycles
4. 4V to 5.5V Operating Range
5. Fully Static Operation: 0 Hz to 33 MHz
6. Three-level Program Memory Lock
7. 256 x 8-bit Internal RAM
8. 32 Programmable I/O Lines
9. Three 16-bit Timer/Counters
10. Eight Interrupt Sources
11. Programmable Serial Channel
12. Low-power Idle and Power-down Modes
13. Interrupt Recovery from Power-down Mode
14. Hardware Watchdog Timer
15. Dual Data Pointer
16. Power-off Flag
17. Green (Pb/Halide-free) Packaging Option

Packing List:

1Pc * AT89C55WD 8-bit 20k Flash Microcontroller ICs