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80C32 is a high-performance CMOS version of the 8032 NMOS single-chip 8-bit µC. The fully static design of the 80C52/80C32 allows reducing system power consumption by bringing the clock frequency down to any value, even DC, without loss of data.
The 80C32 retains all the features of the 8052: 8 K bytes of ROM; 256 bytes of RAM; 32 I/O lines; three 16 bit timers; a 6-source, 2-level interrupt structure; a full-duplex serial port; and on-chip oscillator and clock circuits.
P80C32 Pinout
P80C32 Pin Configuration
| Pin Number | Pin Name | Description |
|---|---|---|
| 1-8 | P1.0-P1.7 | Port 1 |
| 9 | RST | Reset |
| 10 | P3.0/RXD | Port 3.0 / Serial Receive Pin |
| 11 | P3.1/TXD | Port 3.1 / Serial Transmit Pin |
| 12 | P3.2/INT0 | Port 3.2 / Interrupt 0 (Active Low) |
| 13 | P3.3/INT1 | Port 3.3 / Interrupt 1 (Active Low) |
| 14 | P3.4/T0 | Port 3.4 / Timer 0 |
| 15 | P3.5/T1 | Port 3.5 / Timer 1 |
| 16 | P3.6/WR | Port 3.6 / Write (Active Low) |
| 17 | P3.7/RD | Port 3.7 / Read (Active Low) |
| 18 | XTAL2 | Crystal Input |
| 19 | XTAL1 | Crystal Input |
| 20 | Vss | Ground |
| 21-28 | P2.0-P2.7 | Port 2 |
| 29 | PSEN | Program Store Enable (Active Low) |
| 30 | ALE | Address Latch Enable |
| 31 | EA | External Memory Enable (Active Low) |
| 32-39 | P0.7-P0.1 | Port 0 |
| 40 | Vcc | Positive Supply |
P80C32 Key Features
- Power control modes
- 256 bytes of RAM
- 8 Kbytes of ROM (80C52)
- 32 programmable I/O lines
- Three 16 bit timer/counters
- 64 K program memory space
- 64 K data memory space
- Fully static design
- 0.8µ CMOS process
- Boolean processor
- 6 interrupt sources
- Programmable serial port
You can download this datasheet for P80C32 CPU with 256×8 RAM and I/O (ROMless) – Datasheet from the link given below:
