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HD74HC589 - 8-bit Serial of Parallel-input/Serial-output Shift Register

Description

The HD74HC589 is similar in function to the HD74HC597, which is not a 3-state device.

This device consists of an 8-bit storage latch which feeds parallel data to an 8-bit shift register.

Data can also be loaded serially (see Function Table).

Features

  • High Speed Operation: tpd (Shift Clock to Q H) = 15 ns typ (CL = 50 pF) High Output Current: Fanout of 15 LSTTL Loads Wide Operating Voltage: VCC = 2 to 6 V Low Input Current: 1 µA max Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C) Function Table Latch Clock LCK Shift Clock SCK X X X L, H, X X L, H, Serial Shift/ Parallel Load X L L X H Output Enable OE X L L H L Function Data are loaded into input latches Data are loaded from.

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HD74HC51 AND-OR-INVERT Gate
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HD74HC589 8-bit Serial of Parallel-input/Serial-output Shift Register (with 3-state outputs) Description The HD74HC589 is similar in function to the HD74HC597, which is not a 3-state device. This device consists of an 8-bit storage latch which feeds parallel data to an 8-bit shift register. Data can also be loaded serially (see Function Table). The shift register output, OH, is a three-state output, allowing this device to be used in bus-oriented systems.
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