IS80C31
FEATURES
- 80C51 based architecture
- 4K x 8 ROM (IS80C51 only)
- 128 x 8 RAM
- Two 16-bit Timer/Counters
- Full duplex serial channel
- Boolean processor
- Four 8-bit I/O ports, 32 I/O lines
- Memory addressing capability
- 64K ROM and 64K RAM
- Power save modes:
- Idle and power-down
- Six interrupt sources
- Most instructions execute in 0.3 µs
- CMOS and TTL patible
- Maximum speed: 40 MHz @ Vcc = 5V
- Industrial temperature available
- Packages available:
- 40-pin DIP
- 44-pin PLCC
- 44-pin PQFP
GENERAL DESCRIPTION
The ISSI IS80C51 and IS80C31 are high-performance microcontrollers fabricated using high-density CMOS technology. The CMOS IS80C51/31 is functionally patible with the industry standard 80C51 microcontrollers.
The IS80C51/31 is designed with 4K x 8 ROM (IS80C51 only); 128 x 8 RAM; 32 programmable I/O lines; a serial I/O port for either multiprocessor munications, I/O expansion or full duplex UART; two 16-bit timer/counters; a six-source, two-priority-level, nested...
