make it an even more powerful microcontroller for applications that require Pulse Width Modulation High Speed I O and up down counting capabilities such as motor control .

that require Pulse Width Modulation High Speed I O and up down counting capabilities such as motor control For the remai.

VCC Supply voltage Port 1 receives the low-order address bytes during EPROM programming and verifying Port 2 Port 2 is an 8-bit bidirectional I O port with internal pullups The Port 2 output buffers can drive LS TTL inputs Port 2 pins that have 1’s.

83C51FA

83C51FB

83C51GB

83C51KB

83C51SL

83C52

83C528

83C54

83C550

83C552

83C554

83C562

83C575