SN74HC595

Part: SN54HC595, SN74HC595 from Texas Instruments

Type: 8-Bit Shift Registers With 3-State Output Registers

Key Specs:

• Operating voltage range: 2 V to 6 V
• Maximum ICC: 80 μA
• Typical tpd: 13 ns
• Output drive: ±6 mA at 5 V
• Maximum input current: 1 μA

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
• tpd = 13 ns (typical)
• ±6-mA output drive at 5 V
• Low input current: 1 μA (maximum)
• Shift register has direct clear

Applications:

• Network switches
• Power infrastructure
• LED displays
• Servers

Package:

• LCCC (20): 8.89 mm × 8.89 mm
• CDIP (16): 21.34 mm × 6.92 mm
• PDIP (16): 19.31 mm × 6.35 mm
• SOIC (16): 9.90 mm × 3.90 mm
• SOIC (16): 10.30 mm × 7.50 mm
• SSOP (16): 6.20 mm × 5.30 mm
• TSSOP (16): 5.00 mm × 4.40 mm

• 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
• tpd = 13 ns (typical)
• ±6-mA output drive at 5 V
• 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

D, N, NS, J, DB, or PW Package 16-Pin SOIC, PDIP, SO, CDIP, SSOP, or TSSOP Top View

20-Pin LCCC Top View

Table 5-1. Pin Functions

| | PIN | |-------|-----------------------------------------------|------|--------|---------------| | NAME | SOIC, PDIP,
SO, CDIP,
SSOP, or
TSSOP | LCCC | I/O(1) | DESCRIPTION | | GND | 8 | 10 | — | Ground Pin | | OE | 13 | 17 | I | Output Enable | | QA | 15 | 19 | O | QA Output | | QB | 1 | 2 | O | QB Output | | QC | 2 | 3 | O | QC Output | | QD | 3 | 4 | O | QD Output | | QE | 4 | 5 | O | QE Output | | QF | 5 | 7 | O | QF Output | | QG | 6 | 8 | O | QG Output | | QH | 7 | 9 | O | QH Output | | QH' | 9 | 12 | O | QH' Output | | RCLK | 12 | 14 | I | RCLK Input | | SER | 14 | 18 | I | SER Input | | SRCLK | 11 | 14 | I | SRCLK Input | | SRCLR | 10 | 13 | I | SRCLR Input | | | | 1 | | | | 16 | | NC | — | 11 | — | No Connection | | | | 16 | | VCC | — | 20 | — | Power Pin |

⁽¹⁾ Signal Types: I = Input, O = Output, I/O = Input or Output.

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

| | | TEST CONDITIONS | | | TA = 25°C | | SN54HC595 | | SN74HC595 | |-----------|--------------------------|------------------------|---------------|------|-----------|------|-----------|-------|-----------|-------|------| | PARAMETER | | | VCC | MIN | TYP | MAX | MIN | MAX | MIN | MAX | UNIT | | | | | 2 V | 1.9 | 1.998 | | 1.9 | | 1.9 | | | | IOH = –20 μA | 4.5 V | 4.4 | 4.499 | | 4.4 | | 4.4 | | | | | 6 V | 5.9 | 5.999 | | 5.9 | | 5.9 | | VOH | VI
= VIH or VIL | QH′, IOH = –4 mA | | 3.98 | 4.3 | | 3.7 | | 3.84 | | V | | | | QA – QH, IOH = –6 mA | 4.5 V | 3.98 | 4.3 | | 3.7 | | 3.84 | | | | QH′, IOH = −5.2 mA | | 5.48 | 5.8 | | 5.2 | | 5.34 | | | | QA – QH, IOH = –7.8 mA | 6 V | 5.48 | 5.8 | | 5.2 | | 5.34 | | | | | 2 V | | 0.002 | 0.1 | | 0.1 | | 0.1 | | | | IOL = 20 μA | 4.5 V | | 0.001 | 0.1 | | 0.1 | | 0.1 | | | | | 6 V | | 0.001 | 0.1 | | 0.1 | | 0.1 | | VOL | VI
= VIH or VIL | QH′, IOL = 4 mA | 4.5 V | | 0.17 | 0.26 | | 0.4 | | 0.33 | V | | | | QA – QH, IOL = 6 mA | | | 0.17 | 0.26 | | 0.4 | | 0.33 | | | | QH′, IOL = 5.2 mA | 6 V | | 0.15 | 0.26 | | 0.4 | | 0.33 | | | | QA – QH, IOL = 7.8 mA | | | 0.15 | 0.26 | | 0.4 | | 0.33 | | II | VI
= VCC or 0 | | 6 V | | ±0.1 | ±100 | | ±1000 | | ±1000 | nA | | IOZ | VO = VCC or 0, QA – QH | | 6 V | | ±0.01 | ±0.5 | | ±10 | | ±5 | µA | | ICC | VI
= VCC or 0, IO = 0 | | 6 V | | | 8 | | 160 | | 80 | µA | | Ci | | | 2 V to
6 V | | 3 | 10 | | 10 | | 10 | pF |

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

⁽¹⁾ Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

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

| | | | | SN54HC595 | | | SN74HC595 | |-------|---------------------------------------|-------------|------|-----------|------|------|-----------|------|------| | | | | MIN | NOM | MAX | MIN | NOM | MAX | UNIT | | VCC | Supply voltage | | 2 | 5 | 6 | 2 | 5 | 6 | V | | | | VCC = 2 V | 1.5 | | | 1.5 | | VIH | High-level input voltage | VCC = 4.5 V | 3.15 | | | 3.15 | | | V | | | | VCC = 6 V | 4.2 | | | 4.2 | | | | VCC = 2 V | | | 0.5 | | | 0.5 | | VIL | Low-level input voltage | VCC = 4.5 V | | | 1.35 | | | 1.35 | V | | | | VCC = 6 V | | | 1.8 | | | 1.8 | | VI | Input voltage | | 0 | | VCC | 0 | | VCC | V | | VO | Output voltage | | 0 | | VCC | 0 | | VCC | V | | | | VCC = 2 V | | | 1000 | | | 1000 | | Δt/Δv | Input transition rise or fall time(2) | VCC = 4.5 V | | | 500 | | | 500 | ns | | | | VCC = 6 V | | | 400 | | | 400 | | TA | Operating free-air temperature | | –55 | | 125 | –40 | | 85 | °C |

⁽¹⁾ All unused inputs of the device must be held at VCC or GND to ensure proper device operation. See the TI application report, Implications of Slow or Floating CMOS Inputs, SCBA004.

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⁽²⁾ The input and output voltage ratings may be exceeded if the input and output current ratings are observed.

⁽²⁾ JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.

⁽²⁾ If this device is used in the threshold region (from VILmax = 0.5 V to VIH min = 1.5 V), there is a potential to go into the wrong state from induced grounding, causing double clocking. Operating with the inputs at t^t = 1000 ns and VCC = 2 V does not damage the device; however, functionally, the CLK inputs are not ensured while in the shift, count, or toggle operating modes.

| | | SN74HC595 | |------|----------------------------------------|-----------|-----------|-----------|----------|---------|---------------|------| | | THERMAL METRIC(1) | D (SOIC) | DB (SSOP) | DW (SOIC) | N (PDIP) | NS (SO) | PW
(TSSOP) | UNIT | | | | 16 PINS | 16 PINS | 16 PINS | 16 PINS | 16 PINS | 16 PINS | | RθJA | Junction-to-ambient thermal resistance | 73 | 82 | 57 | 67 | 64 | 108 | °C/W |

⁽¹⁾ For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report, SPRA953.