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80 Series
80C32 CPU with 256x8 RAM and I/O Datasheet
Photograph
Features
Pin Compatible with NMOS 8032
Power Control Modes
256 bytes of RAM
32 programmable I/O Lines
Three 16 bit Timer/Counter
64k Program Memory Space
64k Data Memory Space
6 interrupt sources
Programmable Serial Port
Pin Layout
Pin Description
Pin Number | 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 |
Dimensional Drawing
Technical Data