Part: SN54HC595, SN74HC595 from Texas Instruments

Type: 8-Bit Shift Register

Description: An 8-bit serial-in, parallel-out shift register with 3-state outputs, a wide operating voltage range of 2 V to 6 V, and low power consumption.

Operating Conditions:

• Supply voltage: 2 V to 6 V
• Operating temperature: -55 to 125 °C (for SN54HC595), -40 to 85 °C (for SN74HC595)
• Max clock frequency: 36 MHz (at VCC = 6 V)

Absolute Maximum Ratings:

• Max supply voltage: 7 V
• Max continuous current: ±35 mA (Continuous output current)
• Max junction/storage temperature: 150 °C

Key Specs:

• Supply current (ICC): 80 μA (max, at VCC = 6 V, IO = 0, TA = 25°C for SN74HC595)
• Input current (II): ±100 nA (max, at VCC = 6 V, VI = VCC or 0 for SN74HC595)
• Output drive (IOH/IOL): ±6 mA (at VCC = 4.5 V, QA-QH)
• Propagation delay (tpd, SRCLK to QH'): 17 ns (typ, at VCC = 4.5 V, TA = 25°C)
• Max clock frequency (fclock): 36 MHz (max, at VCC = 6 V)
• Input capacitance (Ci): 3 pF (typ, at VCC = 2 V to 6 V)
• Output enable time (ten, OE to QA-QH): 15 ns (typ, at VCC = 4.5 V, TA = 25°C)
• Power dissipation capacitance (Cpd): 400 pF (typ, no load, TA = 25°C)

Features:

• 8-bit serial-in, parallel-out shift
• Wide operating voltage range of 2 V to 6 V
• High-current 3-state outputs can drive up to 15 LSTTL loads
• Low power consumption: 80-μA (maximum) ICC
• ±6-mA output drive at 5 V
• tpd = 13 ns (typical)
• Low input current: 1 μA (maximum)
• Shift register has direct clear

Applications:

• Network switches
• Power infrastructure
• LED displays
• Servers

Package:

• LCCC (20)
• CDIP (16)
• PDIP (16)
• SOIC (16)
• SSOP (16)
• TSSOP (16)

• 8-bit serial-in, parallel-out shift
• Wide operating voltage range of 2 V to 6 V
• High-current 3-state outputs can drive up to 15 LSTTL loads
• Low power consumption: 80-μA (maximum) ICC
• ±6-mA output drive at 5 V
• t pd = 13 ns (typical)
• Low input current: 1 μA (maximum)
• Shift register has direct clear
• On products compliant to MIL-PRF-38535, all parameters are tested unless otherwise noted. On all other products, production processing does not necessarily include testing of all parameters.

• Network switches
• Power infrastructure
• LED displays
• Servers

SN74HC595DB Pinout

Package: 16-Pin SOIC/PDIP/SO/CDIP/SSOP/TSSOP

Notes

• The SN74HC595DB is a 16-pin 8-bit shift register with storage register and 3-state outputs.
• Pin numbers are read directly from the SOIC/PDIP package diagram (top view).
• Q_A through Q_H are the 8 parallel outputs.
• Q_H' is the serial output for cascading multiple devices.
• OE (Output Enable) is active low; when high, outputs are in high-impedance state.
• SRCLR (Shift Register Clear) is active low for asynchronous reset.

over recommended operating free-air temperature range (unless otherwise noted)

over operating free-air temperature range (unless otherwise noted) (1)

over operating free-air temperature range (unless otherwise noted) (1)

• SN74HC595 SN74HC595 SN74HC595 SN74HC595 SN74HC595 SN74HC595
• THERMAL METRIC (1) D (SOIC) DB (SSOP) DW (SOIC) N (PDIP) NS (SO) PW (TSSOP)
• 16 PINS 16 PINS 16 PINS 16 PINS 16 PINS 16 PINS
• R θJA Junction-to-ambient thermal resistance 73 82 57 67 64 108

The SNx4HC595 is a low-drive CMOS device that can be used for a multitude of bus interface type applications where output ringing is a concern. The low drive and slow edge rates will minimize overshoot and undershoot on the outputs.