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Click here for more information74HC237DB
3-to-8 line decoder, demultiplexer with address latches
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 strobes (stored address) applications in bus-oriented systems.
Alternatives
Features and benefits
Combines 3-to-8 decoder with 3-bit latch
Multiple input enable for easy expansion or independent controls
Active HIGH mutually exclusive outputs
Wide supply voltage range from 2.0 V to 6.0 V
CMOS low power dissipation
High noise immunity
Latch-up performance exceeds 100 mA per JESD 78 Class II Level B
Complies with JEDEC standards:
JESD8C (2.7 V to 3.6 V)
JESD7A (2.0 V to 6.0 V)
ESD protection:
HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V
CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V
Specified from -40 °C to +85 °C and from -40 °C to +125 °C
PCB Symbol, Footprint and 3D Model
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封裝
下表中的所有產(chǎn)品型號均已停產(chǎn) 。
| 型號 | 可訂購的器件編號，（訂購碼(12NC)） | 狀態(tài) | 標示 | 封裝 | 外形圖 | 回流焊/波峰焊 | 包裝 |
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| 74HC237DB | 74HC237DB,112 (935189820112) |
Obsolete | no package information | ||||
| 74HC237DB,118 (935189820118) |
Obsolete | ||||||
環(huán)境信息
下表中的所有產(chǎn)品型號均已停產(chǎn) 。
| 型號 | 可訂購的器件編號 | 化學成分 | RoHS | RHF指示符 |
|---|---|---|---|---|
| 74HC237DB | 74HC237DB,112 | 74HC237DB |
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| 74HC237DB | 74HC237DB,118 | 74HC237DB |
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文檔 (3)
| 文件名稱 | 標題 | 類型 | 日期 |
|---|---|---|---|
| 74HC237 | 3-to-8 line decoder, demultiplexer with address latches | Data sheet | 2024-01-11 |
| AN11044 | Pin FMEA 74HC/74HCT family | Application note | 2019-01-09 |
| HCT_USER_GUIDE | HC/T User Guide | User manual | 1997-10-31 |
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模型
No documents available
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How does it work?
The interactive datasheets are based on the Nexperia MOSFET precision electrothermal models. With our interactive datasheets you can simply specify your own conditions interactively. Start by changing the values of the conditions. You can do this by using the sliders in the condition fields. By dragging the sliders you will see how the MOSFET will perform at the new conditions set.