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SN74LV8T594
  • SN74LV8T594
  • SN74LV8T594
  • SN74LV8T594

SN74LV8T594

ACTIVE

1.65V-to-5V eight-channel shift register with logic-level shifter

Texas Instruments SN74LV8T594 Product Info

1 April 2026 0

Parameters

Technology family

LVxT

Features

Voltage translation

Operating temperature range (°C)

-40 to 125

Package

TSSOP (PW)-16-32 mm² 5 x 6.4

Features

  • Latching logic with known power-up state provides consistent start-up behavior
  • Wide operating range of 1.65V to 5.5V
  • 5.5V tolerant input pins
  • Single-supply voltage translator (refer to LVxT Enhanced Input Voltage):
    • Up translation:
      • 1.2V to 1.8V
      • 1.5V to 2.5V
      • 1.8V to 3.3V
      • 3.3V to 5.0V
    • Down translation:

      • 5.0V, 3.3V, 2.5V to 1.8V
      • 5.0V, 3.3V to 2.5V
      • 5.0V to 3.3V
  • Up to 150Mbps with 5V or 3.3V VCC
  • Supports standard function pinout
  • Latch-up performance exceeds 250mAper JESD 17
  • Latching logic with known power-up state provides consistent start-up behavior
  • Wide operating range of 1.65V to 5.5V
  • 5.5V tolerant input pins
  • Single-supply voltage translator (refer to LVxT Enhanced Input Voltage):
    • Up translation:
      • 1.2V to 1.8V
      • 1.5V to 2.5V
      • 1.8V to 3.3V
      • 3.3V to 5.0V
    • Down translation:

      • 5.0V, 3.3V, 2.5V to 1.8V
      • 5.0V, 3.3V to 2.5V
      • 5.0V to 3.3V
  • Up to 150Mbps with 5V or 3.3V VCC
  • Supports standard function pinout
  • Latch-up performance exceeds 250mAper JESD 17

Description

The SN74LV8T594 device contains an 8-bit, serial-in, parallel-out shift register. Each parallel output of the shift register is fed through a storage register before reaching the primary device outputs (QA through QH). Separate clocks (SRCLK and RCLK) and direct overriding clear (SRCLR and RCLR) inputs are provided for both the shift and storage registers, allowing for loading data separately from sending it to the outputs. Additionally, the last output of the internal shift register is sent directly to the output QH’ providing a method to daisy-chain multiple shift registers.

The input is designed with a reduced threshold circuit to support up translation when the supply voltage is larger than the input voltage. Additionally, the 5V tolerant input pins enable down translation when the input voltage is larger than the supply voltage. The output level is always referenced to the supply voltage (VCC) and supports 1.8V, 2.5V, 3.3V, and 5V CMOS levels.

The SN74LV8T594 device contains an 8-bit, serial-in, parallel-out shift register. Each parallel output of the shift register is fed through a storage register before reaching the primary device outputs (QA through QH). Separate clocks (SRCLK and RCLK) and direct overriding clear (SRCLR and RCLR) inputs are provided for both the shift and storage registers, allowing for loading data separately from sending it to the outputs. Additionally, the last output of the internal shift register is sent directly to the output QH’ providing a method to daisy-chain multiple shift registers.

The input is designed with a reduced threshold circuit to support up translation when the supply voltage is larger than the input voltage. Additionally, the 5V tolerant input pins enable down translation when the input voltage is larger than the supply voltage. The output level is always referenced to the supply voltage (VCC) and supports 1.8V, 2.5V, 3.3V, and 5V CMOS levels.

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