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74HC237
Datasheet
(Product Specification)
12-Nov-04, 19 pages, 104 kB
General description
The 74HC237 is a high-speed Si-gate CMOS device and is pin compatible with low power Schottky TTL (LSTTL). The 74HC237 is specified in compliance with JEDEC standard no. 7A.
The 74HC237 is a 3-to-8 line decoder, demultiplexer with latches at the three address inputs (An). The 74HC237 essentially combines the 3-to-8 decoder function with a 3-bit storage latch. When the latch is enabled (LE = LOW), the 74HC237 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 74HC237 is ideally suited for implementing non-overlapping decoders in 3-state systems and strobed (stored address) applications in bus oriented systems.
Features
- Combines 3-to-8 decoder with 3-bit latch
- Multiple input enable for easy expansion or independent controls
- Active HIGH mutually exclusive outputs
- Low-power dissipation
- Complies with JEDEC standard no. 7A
- ESD protection:
- HBM EIA/JESD22-A114-B exceeds 2000 V
- MM EIA/JESD22-A115-A exceeds 200 V.
- Multiple package options
- Specified from -40 Cel to +80Cel and from -40 Cel to +125 Cel.
Products/packages
| Type number | Orderable part number | Ordering code (12NC) | Product status | Package | Packing | Marking | ECCN |
|---|---|---|---|---|---|---|---|
| 74HC237D | 74HC237D,652 | 9337 571 90652 | Volume production | SOT109 | Bulk Pack, CECC | Standard Marking | |
| 74HC237D | 74HC237D,653 | 9337 571 90653 | Volume production | SOT109 | Reel Pack, SMD, 13", CECC | Standard Marking | |
| 74HC237D/DG | 74HC237D/DG,118 | 9352 898 66118 | Volume production | SOT109 | Reel Pack, SMD, 13" | Standard Marking | |
| 74HC237DB | 74HC237DB,112 | 9351 898 20112 | Volume production | SOT338-1
(SSOP16) | Tube | Standard Marking | |
| 74HC237DB | 74HC237DB,118 | 9351 898 20118 | Volume production | SOT338-1
(SSOP16) | Reel Pack, SMD, 13" | Standard Marking | |
| 74HC237N | 74HC237N,652 | 9337 571 80652 | Volume production | SOT38-4
(DIP16) | Bulk Pack, CECC | Standard Marking |
Quality/reliability/chemical content
| Type number | Orderable part number | Chemical content | RoHS | Leadfree Conversion date | RHF | IRF (FIT) | MTBF (hours) | MSL |
|---|---|---|---|---|---|---|---|---|
| 74HC237D | 74HC237D,652 | 74HC237D |
| week 6, 2004 | 6,62 | 1,51E+08 | 1 | |
| 74HC237D | 74HC237D,653 | 74HC237D |
| week 6, 2004 | 6,62 | 1,51E+08 | 1 | |
| 74HC237D/DG | 74HC237D/DG,118 | 74HC237D_DG |
| Always Pb-free | 6,62 | 1,51E+08 | 1 | |
| 74HC237DB | 74HC237DB,112 | 74HC237DB |
| week 12, 2005 | 6,62 | 1,51E+08 | 1 | |
| 74HC237DB | 74HC237DB,118 | 74HC237DB |
| week 12, 2005 | 6,62 | 1,51E+08 | 1 | |
| 74HC237N | 74HC237N,652 | 74HC237N |
| Always Pb-free | 6,62 | 1,51E+08 | NA |
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Orderable part number | Indicative price/unit($) | Region | Distributor | In stock | Order quantity | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|---|---|
| 74HC237D | 9337 571 90652 | 74HC237D,652 | 0.2900 | NA | ARROW ELECTRONICS | 776 | 11/19/2009 | Buy online | not available | |
| NA | DIGI-KEY CORPORATION | 1,769 | 11/20/2009 | Buy online | ||||||
| NA | MOUSER ELECTRONICS | 230 | 11/20/2009 | Buy online | ||||||
| NA | AVNET ELECTRONICS MARKETING | 340 | 11/19/2009 | Buy online | ||||||
| NA | MOUSER ELECTRONICS | 230 | 11/20/2009 | Buy online | ||||||
| 74HC237D | 9337 571 90653 | 74HC237D,653 | 0.2900 | NA | ARROW ELECTRONICS | 776 | 11/19/2009 | Buy online | not available | |
| NA | FUTURE ELECTRONICS | 22,103 | 11/19/2009 | Buy online | ||||||
| ASIA | SAC - Taiwan | yes | 2500 | 11/20/2009 | Buy online | |||||
| 74HC237D/DG | 9352 898 66118 | 74HC237D/DG,118 | Order samples | |||||||
| 74HC237DB | 9351 898 20112 | 74HC237DB,112 | 0.3300 | NA | DIGI-KEY CORPORATION | 270 | 11/20/2009 | Buy online | not available | |
| 74HC237DB | 9351 898 20118 | 74HC237DB,118 | 0.3300 | NA | MOUSER ELECTRONICS | 120 | 11/20/2009 | Buy online | not available | |
| NA | FUTURE ELECTRONICS | 100 | 11/19/2009 | Buy online | ||||||
| NA | MOUSER ELECTRONICS | 120 | 11/20/2009 | Buy online | ||||||
| 74HC237N | 9337 571 80652 | 74HC237N,652 | 0.3000 | NA | NEWARK | 827 | 11/20/2009 | Buy online | Order samples | |
| NA | ARROW ELECTRONICS | 2,000 | 11/19/2009 | Buy online | ||||||
| NA | DIGI-KEY CORPORATION | 947 | 11/20/2009 | Buy online | ||||||
| NA | MOUSER ELECTRONICS | 1,738 | 11/20/2009 | Buy online | ||||||
| NA | FUTURE ELECTRONICS | 31,679 | 11/19/2009 | Buy online | ||||||
| NA | MOUSER ELECTRONICS | 1,738 | 11/20/2009 | Buy online |
Parametrics/similar products
| Type number | Package | Description | Propagation Delay(ns) | Voltage | Power Dissipation Considerations | Logic Switching Levels | Output Drive Capability |
|---|---|---|---|---|---|---|---|
| 74HC237D | SOT109
| 3-to-8 Decoder/Demultiplexer with Address Latches | 16@5V | 2.0-6.0 V | Low Power or Battery Applications | CMOS | +/- 5.2 mA |
| 74HC237D/DG | SOT109
| 3-to-8 Decoder/Demultiplexer with Address Latches | 16@5V | 2.0-6.0 V | Low Power or Battery Applications | CMOS | +/- 5.2 mA |
| 74HC237DB | SOT338-1
(SSOP16) | 3-to-8 Decoder/Demultiplexer with Address Latches | 16@5V | 2.0-6.0 V | Low Power or Battery Applications | CMOS | +/- 5.2 mA |
| 74HC237N | SOT38-4
(DIP16) | 3-to-8 Decoder/Demultiplexer with Address Latches | 16@5V | 2.0-6.0 V | Low Power or Battery Applications | CMOS | +/- 5.2 mA |
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