74AHC373D: Octal D-type transparent latch; 3-state

The 74AHC373; 74AHCT373 is a high-speed Si-gate CMOS device and is pin compatible with Low-power Schottky TTL (LSTTL). It is specified in compliance with JEDEC standard No. 7-A.

The 74AHC373; 74AHCT373 consists of eight D-type transparent latches featuring separate D-type inputs for each latch and 3-state true outputs for bus oriented applications. A latch enable input (LE) and an output enable input (OE) are common to all latches.

When pin LE is HIGH, data at the Dn inputs enters the latches. In this condition the latches are transparent, i.e. a latch output will change state each time its corresponding Dn input changes. When pin LE is LOW, the latches store the information that is present at the Dn inputs, after a set-up time preceding the HIGH-to-LOW transition of LE.

When pin OE is LOW, the contents of the 8 latches are available at the outputs. When pin OE is HIGH, the outputs go to the high-impedance OFF-state. Operation of the OE input does not affect the state of the latches.

The 74AHC373; 74AHCT373 is functionally identical to the 74AHC573; 74AHCT573, but has a different pin arrangement.

74AHC373D: Product Block Diagram
SOT163-1
Data Sheets (1)
Name/DescriptionModified Date
Octal D-type transparent latch; 3-state (REV 1.0) PDF (100.0 kB) 74AHC_AHCT373 [English]20 May 2008
Application Notes (6)
Name/DescriptionModified Date
Sorting through the low voltage logic maze (REV 1.0) PDF (72.0 kB) AN10156 [English]13 Mar 2013
Package lead inductance considerations in high-speed applications (REV 1.0) PDF (43.0 kB) AN212 [English]13 Mar 2013
A metastability primer (REV 1.0) PDF (40.0 kB) AN219 [English]13 Mar 2013
Ground and VCC Bounce of High-Speed Integrated Circuits (REV 1.0) PDF (25.0 kB) AN223 [English]13 Mar 2013
Live Insertion Aspects of Philips Logic Families (REV 1.0) PDF (73.0 kB) AN252 [English]13 Mar 2013
Pin FMEA for AHC/AHCT family (REV 1.0) PDF (52.0 kB) AN11106 [English]04 Nov 2011
Brochures (2)
Name/DescriptionModified Date
電圧レベルシフタ (REV 1.1) PDF (3.1 MB) 75017511_JP [English]16 Feb 2015
Voltage translation: How to manage mixed-voltage designs with NXP® level translators (REV 1.0) PDF (2.6 MB) 75017511 [English]20 May 2014
Package Information (1)
Name/DescriptionModified Date
plastic small outline package; 20 leads; body width 7.5 mm (REV 1.0) PDF (335.0 kB) SOT163-1 [English]08 Feb 2016
Packing (1)
Name/DescriptionModified Date
SO20; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering... (REV 2.0) PDF (246.0 kB) SOT163-1_118 [English]15 Apr 2013
Supporting Information (2)
Name/DescriptionModified Date
Reflow Soldering Profile (REV 1.0) PDF (34.0 kB) REFLOW_SOLDERING_PROFILE [English]30 Sep 2013
Wave Soldering Profile (REV 1.0) PDF (20.0 kB) WAVE_SOLDERING_PROFILE [English]30 Sep 2013
IBIS Model
Ordering Information
ProductStatusFamilyVCC (V)FunctionDescriptionLogic switching levelsOutput drive capability (mA)Package versiontpd (ns)No of bitsPower dissipation considerationsTamb (Cel)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package nameNo of pins
74AHC373DActiveAHC(T)2.0 - 5.5Latches/registered driversoctal D-type transparent latch (3-state)CMOS+/- 8SOT163-14.38low-40~1258427.061SO2020
Package Information
Product IDPackage DescriptionOutline VersionReflow/Wave SolderingPackingProduct StatusPart NumberOrdering code(12NC)MarkingChemical ContentRoHS / Pb Free / RHFLeadFree Conversion DateEFRIFR(FIT)MTBF(hour)MSLMSL LF
74AHC373DSOT163-1Reflow_Soldering_Profile Wave_Soldering_Profile
Reflow_Soldering_Profile Wave_Soldering_Profile
Reel 13" Q1/T1Active74AHC373D,118 (9352 626 51118)74AHC373D74AHC373Dweek 30, 200484.96.621.51E811
Bulk PackActive74AHC373D,112 (9352 626 51112)74AHC373D74AHC373Dweek 30, 200484.96.621.51E811
Octal D-type transparent latch; 3-state 74AHC373PW
Sorting through the low voltage logic maze 74LVC_H_245A_Q100
Package lead inductance considerations in high-speed applications 74LVC_H_245A_Q100
A metastability primer 74AHC573PW
Ground and VCC Bounce of High-Speed Integrated Circuits 74ALVC164245DGG-Q100
Live Insertion Aspects of Philips Logic Families 74HC_T_245_Q100
Pin FMEA for AHC/AHCT family 74AHC_T_245_Q100
電圧レベルシフタ 74AVC16245DGG-Q100
Voltage translation: How to manage mixed-voltage designs with NXP® level translators 74AVC16245DGG-Q100
ahc373 IBIS model 74AHC373PW
SOT163-1 LPC1112FD20
Reflow_Soldering_Profile Wave_Soldering_Profile LPC1112FD20
Reflow_Soldering_Profile Wave_Soldering_Profile LPC1112FD20
Reel 13" Q1/T1 LPC812M101JD20
74HC_T_373
SA615