(China (Mainland))
Product Summary
The SN74HC138N is a 3-line to 8-line decoder. The SN74HC138N is designed to be used in high-performance memory-decoding or data- routing applications requiring very short propagation delay times. In high-performance memory systems, the SN74HC138N can be used to minimize the effects of system decoding. When employed with high-speed memories utilizing a fast enable circuit, the delay times of these decoders and the enable time of the memory are usually less than the typical access time of the memory. This means that the effective system delay introduced by the decoders is negligible
Parametrics
SN74HC138N absolute maximum ratings: (1) VI = VCC or 06 V: ±0.1±100, ±1000, ±1000nA; (2) ICCVI = VCC or 0,IO = 06 V: 8, 160, 80μA; (3) Ci2 V to 6 V: 3 10, 10, 10pF; (4) VOLVI = VIH or VIL IOL = 4 mA 4.5 V: 0.17 0.26, 0.4, 0.33V; (5) VOLVI = VIH or VIL IOL = 5.2 mA 6 V: 0.15 0.26, 0.4, 0.33V; (6) VOHVI = VIH or VIL IOH = -4 mA 4.5 V: 3.98 4.3, 3.7, 3.84V; (7) VOHVI = VIH or VIL IOH = -5.2 mA 6 V: 5.48 5.8, 5.2, 5.34V.
Features
SN74HC138N features: (1) Targeted Specifically for High-SpeedMemory Decoders and Data-TransmissionSystems; (2) Wide Operating Voltage Range of 2 V to 6 V; (3) Outputs Can Drive Up To 10 LSTTL Loads; (4) Low Power Consumption, 80-μA Max ICC; (5) Typical tpd = 15 ns; (6) ±4-mA Output Drive at 5 V; (7) Low Input Current of 1 μA Max; (8)Incorporate Three Enable Inputs to SimplifyCascading and/or Data Reception.
Diagrams
| Image | Part No | Mfg | Description |  |
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 SN74HC138N |
Texas Instruments |
Encoders, Decoders, Multiplexers & Demultiplexers 3-to-8 Line Decoder |
Data Sheet |
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SN74HC138NE4 |
Texas Instruments |
Encoders, Decoders, Multiplexers & Demultiplexers 3 to 8-Line Decdr/Demltplxer |
Data Sheet |
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SN74HC138NSR |
Texas Instruments |
Encoders, Decoders, Multiplexers & Demultiplexers 3-to-8 Line Decoder |
Data Sheet |
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SN74HC138NSRG4 |
Texas Instruments |
Encoders, Decoders, Multiplexers & Demultiplexers 3 to 8-Line Decdr/Demltplxer |
Data Sheet |
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