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SN74AUC16373

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16-Bit Transparent D-Type Latch With 3-State Outputs

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Data sheet

SN74AUC16373

ACTIVE
Data sheet Order now

Product details

Number of channels 16 Technology family AUC Supply voltage (min) (V) 0.8 Supply voltage (max) (V) 2.7 Input type Standard CMOS Output type 3-State Clock frequency (max) (MHz) 250 IOL (max) (mA) 9 IOH (max) (mA) -9 Supply current (max) (µA) 20 Features Balanced outputs, Flow-through pinout, Over-voltage tolerant inputs, Partial power down (Ioff), Ultra high speed (tpd <5ns) Operating temperature range (°C) -40 to 85 Rating Catalog
Number of channels 16 Technology family AUC Supply voltage (min) (V) 0.8 Supply voltage (max) (V) 2.7 Input type Standard CMOS Output type 3-State Clock frequency (max) (MHz) 250 IOL (max) (mA) 9 IOH (max) (mA) -9 Supply current (max) (µA) 20 Features Balanced outputs, Flow-through pinout, Over-voltage tolerant inputs, Partial power down (Ioff), Ultra high speed (tpd <5ns) Operating temperature range (°C) -40 to 85 Rating Catalog
TSSOP (DGG) 48 101.25 mm² 12.5 x 8.1 TVSOP (DGV) 48 62.08 mm² 9.7 x 6.4
  • Member of the Texas Instruments Widebus™ Family
  • Optimized for 1.8-V Operation and is 3.6-V I/O Tolerant to Support Mixed-Mode Signal Operation
  • Ioff Supports Partial-Power-Down Mode Operation
  • Sub 1-V Operable
  • Max tpd of 2 ns at 1.8 V
  • Low Power Consumption, 20-µA Max ICC
  • ±8-mA Output Drive at 1.8 V
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)
    • 1000-V Charged-Device Model (C101)

Widebus is a trademark of Texas Instruments.
  • Member of the Texas Instruments Widebus™ Family
  • Optimized for 1.8-V Operation and is 3.6-V I/O Tolerant to Support Mixed-Mode Signal Operation
  • Ioff Supports Partial-Power-Down Mode Operation
  • Sub 1-V Operable
  • Max tpd of 2 ns at 1.8 V
  • Low Power Consumption, 20-µA Max ICC
  • ±8-mA Output Drive at 1.8 V
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)
    • 1000-V Charged-Device Model (C101)

Widebus is a trademark of Texas Instruments.

This 16-bit transparent D-type latch is operational at 0.8-V to 2.7-V VCC, but is designed specifically for 1.65-V to 1.95-V VCC operation.

The SN74AUC16373 is particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers. The device can be used as two 8-bit latches or one 16-bit latch. When the latch-enable (LE) input is high, the Q outputs follow the data (D) inputs. When LE is taken low, the Q outputs are latched at the levels set up at the D inputs.

A buffered output-enable (OE)\ input can be used to place the eight outputs in either a normal logic state (high or low logic levels) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines without interface or pullup components.

OE\ does not affect internal operations of the latch. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.

To ensure the high-impedance state during power up or power down, OE\ should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.

This 16-bit transparent D-type latch is operational at 0.8-V to 2.7-V VCC, but is designed specifically for 1.65-V to 1.95-V VCC operation.

The SN74AUC16373 is particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers. The device can be used as two 8-bit latches or one 16-bit latch. When the latch-enable (LE) input is high, the Q outputs follow the data (D) inputs. When LE is taken low, the Q outputs are latched at the levels set up at the D inputs.

A buffered output-enable (OE)\ input can be used to place the eight outputs in either a normal logic state (high or low logic levels) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines without interface or pullup components.

OE\ does not affect internal operations of the latch. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.

To ensure the high-impedance state during power up or power down, OE\ should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.
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Technical documentation

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Type Title Date
* Data sheet SN74AUC16373 datasheet (Rev. C) 01 Nov 2002
Application note Power-Up Behavior of Clocked Devices (Rev. B) PDF | HTML 15 Dec 2022
Selection guide Little Logic Guide 2018 (Rev. G) 06 Jul 2018
Selection guide Logic Guide (Rev. AB) 12 Jun 2017
Application note How to Select Little Logic (Rev. A) 26 Jul 2016
Application note Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) 02 Dec 2015
User guide LOGIC Pocket Data Book (Rev. B) 16 Jan 2007
Product overview Design Summary for WCSP Little Logic (Rev. B) 04 Nov 2004
Application note Semiconductor Packing Material Electrostatic Discharge (ESD) Protection 08 Jul 2004
Application note Selecting the Right Level Translation Solution (Rev. A) 22 Jun 2004
User guide Signal Switch Data Book (Rev. A) 14 Nov 2003
Application note Designing With TI Ultra-Low-Voltage CMOS (AUC) Octals and Widebus Devices 21 Mar 2003
User guide AUC Data Book, January 2003 (Rev. A) 01 Jan 2003
Application note Texas Instruments Little Logic Application Report 01 Nov 2002
Application note TI IBIS File Creation, Validation, and Distribution Processes 29 Aug 2002
More literature Standard Linear & Logic for PCs, Servers & Motherboards 13 Jun 2002
More literature STANDARD LINEAR AND LOGIC FOR DVD/VCD PLAYERS 27 Mar 2002
More literature AUC Product Brochure (Rev. A) 18 Mar 2002

Design & development

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Simulation model

SN74AUC16373 IBIS Model

SCEM295.ZIP (72 KB) - IBIS Model
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TSSOP (DGG) 48 Ultra Librarian
TVSOP (DGV) 48 Ultra Librarian
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