74S188 Open Collector PROM – Datasheet

This Schottky memory is organized in the popular 32 words by 8 bits configuration. A memory enables input is provided to control the output states. When the device is enabled, the outputs represent the contents of the selected word. When disabled, the 8 outputs go to the “OFF” or high impedance state. PROMs are shipped from the factory with lows in all locations. A high may be programmed into any selected location by following the programming instructions.

74S188 Pinout

74S188 Pin Configuration

Pin No	Pin Name	Description
1	Q0	Data Output
2	Q1	Data Output
3	Q2	Data Output
4	Q3	Data Output
5	Q4	Data Output
6	Q5	Data Output
7	Q6	Data Output
8	GND	Ground Pin
9	Q7	Data Output
10	A0	Address Pin
11	A1	Address Pin
12	A2	Address Pin
13	A3	Address Pin
14	A4	Address Pin
15	G’	Output Enable
16	VCC	Power Supply Pin

74S188 Key Features

• Advanced titanium-tungsten (T-W) fuses
• Schottky-clamped for high speed
  • Address access down to-25 ns max
  • Enable access-20 ns max
  • Enable recovery-20 ns max
• PNP inputs for reduced input loading
• All DC and AC parameters guaranteed over temperature
• Low voltage TRI-SAFE programming
• Open-collector outputs

You can download this datasheet for 74S188 Open Collector PROM – Datasheet from the link given below: