(China (Mainland))
Product Summary
The 74HC237D is a high-speed Si-gate CMOS device and is pin compatible with low power Schottky TTL (LSTTL). The 74HC237D is specified in compliance with JEDEC standard no. 7A. It is a 3-to-8 line decoder, demultiplexer with latches at the three address inputs (An). The 74HC237D essentially combines the 3-to-8 decoder function with a 3-bit storage latch. When the latch is enabled (LE = LOW), the 74HC237D 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 74HC237D is ideally suited for implementing non-overlapping decoders in 3-state systems and strobed (stored address) applications in bus oriented systems.
Parametrics
74HC237D absolute maximum ratings: (1)supply voltage: -0.5 to +7 V; (2)input clamping current: ±20 mA at VI < -0.5 V or VI > VCC + 0.5 V; (3)output clamping current: ±20 mA at VO < -0.5 V or VO > VCC + 0.5 V; (4)output current: ±25 mA at VO = -0.5 V to (VCC + 0.5 V); (5)supply current: +50 mA; (6)ground current: ±50 mA; (7)storage temperature: -65 +150 ℃; (8)total power dissipation DIP16 package: 750 mW, SO16 and SSOP16 packages: 500 mW.
Features
74HC237D features: (1)Combines 3-to-8 decoder with 3-bit latch; (2)Multiple input enable for easy expansion or independent controls; (3)Active HIGH mutually exclusive outputs; (4)Low-power dissipation; (5)ESD protection: HBM JESD22-A114F exceeds 2 000 V, MM JESD22-A115-A exceeds 200 V; (6)Multiple package options; (7)Specified from -40 ℃ to +85 ℃ and from -40 ℃ to +125 ℃.
Diagrams
| Image | Part No | Mfg | Description |  |
Pricing (USD) |
Quantity | ||||||||||||
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 74HC237D,652 |
NXP Semiconductors |
Encoders, Decoders, Multiplexers & Demultiplexers 3-TO-8 LINE DEC DEMULTI |
Data Sheet |
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74HC237D,653 |
NXP Semiconductors |
Encoders, Decoders, Multiplexers & Demultiplexers 3-TO-8 LINE DEC |
Data Sheet |
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74HC237DB,118 |
NXP Semiconductors |
Encoders, Decoders, Multiplexers & Demultiplexers 3-TO-8 LINE DEC DEMULTI |
Data Sheet |
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74HC237DB,112 |
NXP Semiconductors |
Encoders, Decoders, Multiplexers & Demultiplexers 3-TO-8 LINE DEC |
Data Sheet |
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74HC237D-T |
NXP Semiconductors |
Encoders, Decoders, Multiplexers & Demultiplexers 3-TO-8 LINE DEC DEMULTI |
Data Sheet |
Negotiable |
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74HC237DB |
NXP Semiconductors |
Encoders, Decoders, Multiplexers & Demultiplexers 3-TO-8 LINE DEC DEMULTI |
Data Sheet |
Negotiable |
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