Description

The CDP1822 and CDP1822C are 256-word by 4-bit static random-access memories designed for use in memory systems where high speed, low operating current, and simplicity in use are desirable. The CDP1822 features high speed and a wide operating voltage range. Both types have separate data inputs and outputs and utilize single power supplies of 4V to 6.5V for the CDP1822C and 4V to 10.5V for the CDP1822.

Features

• Low Operating Current

    - VDD = 5V, Cycle Time 1µs . . . . . . . . . . . . . . . . . . 8mA

• Industry Standard Pinout

• Two Chip-Select Inputs-Simple Memory Expansion

• Memory Retention for Standby Battery Voltage of 2V Minimum

• Output-Disable for Common I/O Systems

• Three-State Data Output for Bus-Oriented Systems

• Separate Data Inputs and Outputs