SN74LVTH273 3.3-V ABT Octal D-Type Flip-Flops With Clear | TI.com

SN74LVTH273 (ACTIVE) 3.3-V ABT Octal D-Type Flip-Flops With Clear

3.3-V ABT Octal D-Type Flip-Flops With Clear - SN74LVTH273
Datasheet
 

Description

These octal D-type flip-flops are designed specifically for low-voltage (3.3-V) VCC operation, but with the capability to provide a TTL interface to a 5-V system environment.

The ’LVTH273 devices are positive-edge-triggered flip-flops with a direct-clear input. Information at the data (D) inputs meeting the setup-time requirements is transferred to the Q outputs on the positive-going edge of the clock pulse. Clock triggering occurs at a particular voltage level and is not directly related to the transition time of the positive-going pulse. When the clock (CLK) input is at either the high or low level, the D-input signal has no effect at the output.

Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended.

These devices are fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the devices when they are powered down.

Features

  • Support Mixed-Mode Signal Operation (5-V Input and Output Voltages With 3.3-V VCC)
  • Typical VOLP (Output Ground Bounce)
        <0.8 V at VCC = 3.3 V, TA = 25°C
  • Support Unregulated Battery Operation Down to 2.7 V
  • Buffered Clock and Direct-Clear Inputs
  • Individual Data Input to Each Flip-Flop
  • Ioff Supports Partial-Power-Down-Mode Operation
  • Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
  • Latch-Up Performance Exceeds 500 mA Per JESD 17
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)

Parametrics

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Part number Order Technology Family VCC (Min) (V) VCC (Max) (V) Bits (#) Voltage (Nom) (V) F @ nom voltage (Max) (MHz) ICC @ nom voltage (Max) (mA) tpd @ nom Voltage (Max) (ns) IOL (Max) (mA) IOH (Max) (mA) 3-state output Rating Operating temperature range (C)
SN74LVTH273 Order now LVT     2.7     3.6     8     3.3     160     5     4.9     64     -32     No     Catalog     -40 to 85