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74HCS237BQ

3-to-8 line decoder/demultiplexer with address latches, Schmitt-trigger inputs

The 74HCS237 is a 3-to-8 line decoder, demultiplexer with latches at the three address inputs (An). The 74HCS237 essentially combines the 3-to-8 decoder function with a 3-bit storage latch. When the latch is enabled (LE = LOW), the 74HCS237 acts as a 3-to-8 active LOW decoder. When the latch enable (LE) goes from LOW-to-HIGH, the last data present at the inputs before this transition, is stored in the latches. Further address changes are ignored as long as LE remains HIGH. The output enable input (E1 and E2) controls the state of the outputs independent of the address inputs or latch operation. All outputs are HIGH unless E1 is LOW and E2 is HIGH. The 74HCS237 is ideally suited for implementing non-overlapping decoders in 3-state systems and strobes (stored address) applications in bus-oriented systems. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.

All inputs are Schmitt-trigger inputs, capable of transforming slowly changing input signals into sharply defined, jitter-free output signals.

Features and benefits

  • Wide supply voltage range from 2.0 V to 6.0 V

  • Schmitt-trigger inputs
  • Low power consumption
    • Typical supply current (ICC) of 100 nA
    • Typical input leakage current (II) of ±10 nA
  • ±7.8 mA output drive at 6 V
  • Combines 3-to-8 decoder with 3-bit latch

  • Multiple input enable for easy expansion or independent controls

  • Active HIGH mutually exclusive outputs

  • Latch-up performance exceeds 100 mA per JESD 78 Class II Level B
  • Complies with JEDEC standards:
    • JESD7A (2.0 V to 6.0 V)
  • ESD protection:

    • HBM ANSI/ESDA/JEDEC JS-001 class 3A exceeds 4000 V

    • CDM ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1500 V

  • Multiple package options

  • Specified from -40 °C to +85 °C and from -40 °C to +125 °C

Parametrics

Type number VCC (V) Logic switching levels Power dissipation considerations Tamb (°C) Package name
74HCS237BQ 2.0 - 6.0 CMOS low -40~125 DHVQFN16

Package

Type number Orderable part number, (Ordering code (12NC)) Status Marking Package Package information Reflow-/Wave soldering Packing
74HCS237BQ 74HCS237BQX
(935692392115)
Active S237 SOT763-1
DHVQFN16
(SOT763-1)
SOT763-1 SOT763-1_115

Environmental information

Type number Orderable part number Chemical content RoHS RHF-indicator
74HCS237BQ 74HCS237BQX 74HCS237BQ rohs rhf rhf
Quality and reliability disclaimer

Documentation (7)

File name Title Type Date
74HCS237 3-to-8 line decoder/demultiplexer with address latches, Schmitt-trigger inputs Data sheet 2025-10-21
AN90063 Questions about package outline drawings Application note 2025-10-22
SOT763-1 3D model for products with SOT763-1 package Design support 2019-10-03
Nexperia_package_poster Nexperia package poster Leaflet 2020-05-15
DHVQFN16_SOT763-1_mk plastic, dual in-line compatible thermal enhanced very thin quad flat package; 16 terminals; 0.5 mm pitch; 3.5 mm x 2.5 mm x 0.85 mm body Marcom graphics 2017-01-28
SOT763-1 plastic, leadless dual in-line compatible thermal enhanced very thin quad flat package; 16 terminals; 0.5 mm pitch; 3.5 mm x 2.5 mm x 1 mm body Package information 2023-05-11
SOT763-1_115 DHVQFN16; Reel pack, SMD, 7" Q1/T1 product orientation Packing information 2020-04-21

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Longevity

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Models

File name Title Type Date
SOT763-1 3D model for products with SOT763-1 package Design support 2019-10-03

Ordering, pricing & availability

Type number Orderable part number Ordering code (12NC) Status Packing Packing Quantity Buy online
74HCS237BQ 74HCS237BQX 935692392115 Active SOT763-1_115 3,000

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Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
74HCS237BQ 74HCS237BQX 935692392115 SOT763-1 Order product