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SN74LVCH32373A

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32-bit transparent D-type latch with 3-state outputs

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Data sheet

SN74LVCH32373A

ACTIVE
Data sheet Order now

Product details

Number of channels 32 Technology family LVC Supply voltage (min) (V) 1.65 Supply voltage (max) (V) 3.6 Input type Standard CMOS Output type 3-State Clock frequency (max) (MHz) 100 IOL (max) (mA) 24 IOH (max) (mA) -24 Supply current (max) (µA) 40 Features Balanced outputs, Flow-through pinout, Over-voltage tolerant inputs, Partial power down (Ioff), Very high speed (tpd 5-10ns) Operating temperature range (°C) -40 to 85 Rating Catalog
Number of channels 32 Technology family LVC Supply voltage (min) (V) 1.65 Supply voltage (max) (V) 3.6 Input type Standard CMOS Output type 3-State Clock frequency (max) (MHz) 100 IOL (max) (mA) 24 IOH (max) (mA) -24 Supply current (max) (µA) 40 Features Balanced outputs, Flow-through pinout, Over-voltage tolerant inputs, Partial power down (Ioff), Very high speed (tpd 5-10ns) Operating temperature range (°C) -40 to 85 Rating Catalog
NFBGA (NMJ) 96 74.25 mm² 13.5 x 5.5
  • Member of the Texas Instruments Widebus+™ Family
  • Operates from 1.65 V to 3.6 V
  • Inputs accept voltages to 5.5 V
  • Max tpd of 4.2 ns at 3.3 V
  • Typical VOLP (output ground bounce) < 0.8 V at VCC = 3.3 V, TA = 25°C
  • Typical VOHV (output VOH undershoot) > 2 V at VCC = 3.3 V, TA = 25°C
  • Ioff supports partial-power-down mode operation
  • Supports mixed-mode signal operation (5-V Input and output voltages with 3.3-V VCC)
  • Bus hold on data inputs eliminates the need for external pullup/pulldown resistors
  • Latch-up performance exceeds 250 mA per JESD 17
  • ESD protection exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)
  • Member of the Texas Instruments Widebus+™ Family
  • Operates from 1.65 V to 3.6 V
  • Inputs accept voltages to 5.5 V
  • Max tpd of 4.2 ns at 3.3 V
  • Typical VOLP (output ground bounce) < 0.8 V at VCC = 3.3 V, TA = 25°C
  • Typical VOHV (output VOH undershoot) > 2 V at VCC = 3.3 V, TA = 25°C
  • Ioff supports partial-power-down mode operation
  • Supports mixed-mode signal operation (5-V Input and output voltages with 3.3-V VCC)
  • Bus hold on data inputs eliminates the need for external pullup/pulldown resistors
  • Latch-up performance exceeds 250 mA per JESD 17
  • ESD protection exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)

This 32-bit transparent D-type latch is designed for 1.65-V to 3.6-V VCC operation.

The SN74LVCH32373A is particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers. It can be used as four 8-bit latches, two 16-bit latches, or one 32-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.

This 32-bit transparent D-type latch is designed for 1.65-V to 3.6-V VCC operation.

The SN74LVCH32373A is particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers. It can be used as four 8-bit latches, two 16-bit latches, or one 32-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.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet SN74LVCH32373A datasheet (Rev. E) 21 Jul 2020
Selection guide Logic Guide (Rev. AC) PDF | HTML 13 Nov 2025
Application note Power-Up Behavior of Clocked Devices (Rev. B) PDF | HTML 15 Dec 2022
Application note Implications of Slow or Floating CMOS Inputs (Rev. E) 26 Jul 2021
Application note An Overview of Bus-Hold Circuit and the Applications (Rev. B) 17 Sep 2018
Selection guide Little Logic Guide 2018 (Rev. G) 06 Jul 2018
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 Use of the CMOS Unbuffered Inverter in Oscillator Circuits 06 Nov 2003
User guide LVC and LV Low-Voltage CMOS Logic Data Book (Rev. B) 18 Dec 2002
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
Application note 16-Bit Widebus Logic Families in 56-Ball, 0.65-mm Pitch Very Thin Fine-Pitch BGA (Rev. B) 22 May 2002
Application note Power-Up 3-State (PU3S) Circuits in TI Standard Logic Devices 10 May 2002
More literature STANDARD LINEAR AND LOGIC FOR DVD/VCD PLAYERS 27 Mar 2002
Application note Migration From 3.3-V To 2.5-V Power Supplies For Logic Devices 01 Dec 1997
Application note Bus-Interface Devices With Output-Damping Resistors Or Reduced-Drive Outputs (Rev. A) 01 Aug 1997
Application note CMOS Power Consumption and CPD Calculation (Rev. B) 01 Jun 1997
Application note LVC Characterization Information 01 Dec 1996
Application note Input and Output Characteristics of Digital Integrated Circuits 01 Oct 1996
Application note Live Insertion 01 Oct 1996
Design guide Low-Voltage Logic (LVC) Designer's Guide 01 Sep 1996
Application note Understanding Advanced Bus-Interface Products Design Guide 01 May 1996

Design & development

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Simulation model

SN74LVCH32373A IBIS Model

SCEM117.ZIP (16 KB) - IBIS Model
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NFBGA (NMJ) 96 Ultra Librarian
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