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8-Bit Shift Registers With Output Registers

Inventory: 278,623
Custom reel may be available

Download data sheet for SN74HC594
  |   View additional information for SN74HC594

Packaging information

Package | Pins SOIC (D) | 16
Operating temperature range (°C) Q (-40 to 125)
Package qty | Carrier: 2,500 | LARGE T&R
Custom reel may be available
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Quality information

RoHS Yes
Lead finish / Ball material NIPDAU
MSL rating / Peak reflow Level-1-260C-UNLIM
Material content View
DPPM / MTBF / Fit rate View
Qualification summary View
Ongoing reliability monitoring View
Device marking View


  • Wide Operating Voltage Range of 2 V to 6 V
  • High-Current Outputs Can Drive up to
    15 LSTTL Loads
  • Low Power Consumption, 80-µA Maximum ICC
  • Typical tpd = 15 ns
  • ±6-mA Output Drive at 5 V
  • Low Input Current of 1 µA Maximum
  • 8-Bit Serial-In, Parallel-Out Shift Registers With
  • Independent Direct Overriding Clears on Shift and
    Storage Registers
  • Independent Clocks for Both Shift and
    Storage Registers


The SNx4HC594 devices contain an 8-bit serial-in, parallel-out shift register that feeds an 8-bit D-type storage register. Separate clocks and direct overriding clear (RCLR, SRCLR) inputs are provided on both the shift and storage registers. A serial (QH’) output is provided for cascading purposes.

Both the shift register (SRCLK) and storage register (RCLK) clocks are positive edge triggered. If both clocks are connected together, the shift register always is one count pulse ahead of the storage register.

The parallel (QA – QH) outputs have high-current capability. QH’ is a standard output.

Qty Price
1-99 $0.431
100-249 $0.293
250-999 $0.226
1,000+ $0.150

Alternative carriers

Part number SN74HC594D
Package qty | Carrier 40 | TUBE
Inventory 5,000
Qty | Price (USD) 1ku | $0.199