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HD74LV595A

8-bit Shift Registers with 3-state Outputs

Hitachi -> Renesas Electronics 

HD74LV595A

8-bit Shift Registers with 3-state Outputs

ADE-205-281 (Z)

1st Edition

April 1999

Description

This device each contains an 8-bit serial-in, parallel-out shift registers that feeds an 8-bit D-type storage

register. The storage register has parallel 3-state outputs. Separate clocks are provided for both the shift

register anf the storage register. The shift register has a direct-overriding clear, serial input, and serial

output pins for cascading.

Both the shift register anf the storage register clocks are positive-edge triggered. If the user wishes to

connect both clocks together, the shift register state will always be one clock pulse ahead of the storage

register. Low-voltage and high-speed operation is suitable for the battery-powered products (e.g., notebook

computers), and the low-power consumption extends the battery life.

Features

• VCC = 2.0 V to 5.5 V operation

• All inputs VIH (Max.) = 5.5 V (@VCC = 0 V to 5.5 V)

• All outputs VO (Max.) = 5.5 V (@VCC = 0 V)

• Typical VOL ground bounce < 0.8 V (@VCC = 3.3 V, Ta = 25°C)

• Typical VOH undershoot > 2.3 V (@VCC = 3.3 V, Ta = 25°C)

• Output current ±6 mA (@VCC = 3.0 V to 3.6 V), ±12 mA (@VCC = 4.5 V to 5.5 V)

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