8755 16k EPROM – Datasheet

2,576 views

The Intel 8755A is an erasable and electrically reprogrammable ROM (EPROM) and 1/O chip to be used in the 8085AH microprocessor systems. The EPROM portion is organized as 2048 words by 8 bits.

It has a maximum access time of 450 ns to permit use with no wait states in an 8085AH CPU. The l/O portion consists of 2 general-purpose 1/O ports. Each /O port has 8 port lines, and each I/O port line is individually programmable as input or output.

8755 Pinout

8755 Pin Configuration

Pin NumberPin NameDescription
1PC&E PROG & CE1′
2CE2Chip Enable Pin 2
3CLK Clock Pin
4RESET Reset
5VDD Supply Voltage
6READYReady Pin
7IO/M Internal Memory Select
8IO/R IO/Read Pin
9RD Read (Active Low)
10LOW (Active Low)
11ALE Address Latch Enable
12-19AD0-AD7 Address Data Bus
20VSSSupply Voltage
24-31PA0-PA7 Port A
32-39PB0-PB7 Port B
21-23A A Pin
40Vcc Positive Voltage Supply

8755 Key Features

  • 2048 Words x 8 Bits
  • Single +5Vv Power Supply (Vcc)
  • Directly Compatible with 8085AH
  • U.V. Erasable and Electrically Reprogrammable
  • Internal Address Latch
  • 2 General Purpose 8-Bit /O Ports Each /O Port Line Individually
  • Programmable as Input or Output

You can download this datasheet for 8755 16k EPROM – Datasheet from the link given below: