74LS189 PDF – 64-BIT RANDOM ACCESS MEMORY

This post explains for the semiconductor 74LS189.

The Part Number is 74LS189.

The function of this semiconductor is 64-BIT RANDOM ACCESS MEMORY

The Package : DIP 16 Pin type

Manufacturers : TI, Fairchild

Images

74LS189 datasheet pinout

The 74LS189 is a high speed 64-bit RAM orgainized as a 16-word by 4-bit array. Address inputs are buffered to minimize loading and are fully decoded on-chip. The outputs are 3-state and are in the high impedance state whenever the Chip select (CS) input is HIGH. The outputs are active only in the Read mode and the output data is the complement of the stored data.

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74LS189 image

Features

1. 3-State Ouputs For Data BUS Applications

2. Buffered Inputs Minimize Loading

3. Address Decoding ON-Chip

4. Diode Clamped Inputs Minimize Ringing

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pinout

74LS189 Datasheet