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Click here for more information74HC240DB
Octal buffer/line driver; 3-state; inverting
The 74HC240; 74HCT240 is an 8-bit inverting buffer/line driver with 3-state outputs. The device can be used as two 4-bit buffers or one 8-bit buffer. The device features two output enables (1OE and 2OE), each controlling four of the 3-state outputs. A HIGH on nOE causes the outputs to assume a high-impedance OFF-state. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.
Alternatives
Features and benefits
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)
Input levels:
For 74HC240: CMOS level
For 74HCT240: TTL level
Inverting 3-state outputs
ESD protection:
HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V
CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V
Multiple package options
Specified from -40 °C to +85 °C and from -40 °C to +125 °C
PCB Symbol, Footprint and 3D Model
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封装
下表中的所有产品型号均已停产 。
| 型号 | 可订购的器件编号，（订购码(12NC)） | 状态 | 标示 | 封装 | 外形图 | 回流焊/波峰焊 | 包装 |
|---|---|---|---|---|---|---|---|
| 74HC240DB | 74HC240DB,112 (935188630112) |
Obsolete | no package information | ||||
| 74HC240DB,118 (935188630118) |
Obsolete | ||||||
环境信息
下表中的所有产品型号均已停产 。
| 型号 | 可订购的器件编号 | 化学成分 | RoHS | RHF指示符 |
|---|---|---|---|---|
| 74HC240DB | 74HC240DB,112 | 74HC240DB |
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| 74HC240DB | 74HC240DB,118 | 74HC240DB |
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Series
文档 (4)
| 文件名称 | 标题 | 类型 | 日期 |
|---|---|---|---|
| 74HC_HCT240 | Octal buffer/line driver; 3-state; inverting | Data sheet | 2024-08-05 |
| AN11044 | Pin FMEA 74HC/74HCT family | Application note | 2019-01-09 |
| hc | HC/HCT Spice model | SPICE model | 2022-02-17 |
| HCT_USER_GUIDE | HC/T User Guide | User manual | 1997-10-31 |
支持
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模型
| 文件名称 | 标题 | 类型 | 日期 |
|---|---|---|---|
| hc | HC/HCT Spice model | SPICE model | 2022-02-17 |
PCB Symbol, Footprint and 3D Model
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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.