BC53-16PA - 80 V, 1 A PNP medium power transistor - 艾金森 Dratk BC53PA - 80 V, 1 A PNP medium power transistor - 艾金森 Dratk BCP53 - 80 V, 1 A PNP medium power transistor - 艾金森 Dratk BCP53-10 - 80 V, 1 A PNP medium power transistor - 艾金森 Dratk BCP53-16 - 80 V, 1 A PNP medium power transistor - 艾金森 Dratk BCX53 - 80 V, 1 A PNP medium power transistor - 艾金森 Dratk BCX53-10 - 80 V, 1 A PNP medium power transistor - 艾金森 Dratk BCX53-16 - 80 V, 1 A PNP medium power transistor - 艾金森 Dratk BCP53-10H - 80 V, 1 A PNP medium power transistors - 艾金森 Dratk BCP53-16H - 80 V, 1 A PNP medium power transistors - 艾金森 Dratk BCP53H - 80 V, 1 A PNP medium power transistors - 艾金森 Dratk BCP53-10T - 80 V, 1 A PNP medium power transistors - 艾金森 Dratk BCP53-16T - 80 V, 1 A PNP medium power transistors - 艾金森 Dratk BCP53T - 80 V, 1 A PNP medium power transistors - 艾金森 Dratk BC54-10PA - 45 V, 1 A NPN medium power transistor - 艾金森 Dratk BC54-16PA - 45 V, 1 A NPN medium power transistor - 艾金森 Dratk BC54PA - 45 V, 1 A NPN medium power transistor - 艾金森 Dratk BCP54 - 45 V, 1 A NPN medium power transistor - 艾金森 Dratk BCP54-10 - 45 V, 1 A NPN medium power transistor - 艾金森 Dratk BCP54-16 - 45 V, 1 A NPN medium power transistor - 艾金森 Dratk BCX54 - 45 V, 1 A NPN medium power transistor - 艾金森 Dratk BCX54-10 - 45 V, 1 A NPN medium power transistor - 艾金森 Dratk BCX54-16 - 45 V, 1 A NPN medium power transistor - 艾金森 Dratk BC55-10PA - 60 V, 1 A NPN medium power transistor - 艾金森 Dratk BC55-16PA - 60 V, 1 A NPN medium power transistor - 艾金森 Dratk BC55PA - 60 V, 1 A NPN medium power transistor - 艾金森 Dratk BCP55 - 60 V, 1 A NPN medium power transistor - 艾金森 Dratk BCP55-10 - 60 V, 1 A NPN medium power transistor - 艾金森 Dratk BCP55-16 - 60 V, 1 A NPN medium power transistor - 艾金森 Dratk BCX55 - 60 V, 1 A NPN medium power transistor - 艾金森 Dratk BCX55-10 - 60 V, 1 A NPN medium power transistor - 艾金森 Dratk BCX55-16 - 60 V, 1 A NPN medium power transistor - 艾金森 Dratk BC56-10PA - 80 V, 1 A NPN medium power transistor - 艾金森 Dratk BC56-16PA - 80 V, 1 A NPN medium power transistor - 艾金森 Dratk BC56PA - 80 V, 1 A NPN medium power transistor - 艾金森 Dratk BCP56 - 80 V, 1 A NPN medium power transistor - 艾金森 Dratk BCP56-10 - 80 V, 1 A NPN medium power transistor - 艾金森 Dratk BCP56-16 - 80 V, 1 A NPN medium power transistor - 艾金森 Dratk BCX56 - 80 V, 1 A NPN medium power transistor - 艾金森 Dratk BCX56-10 - 80 V, 1 A NPN medium power transistor - 艾金森 Dratk BCX56-16 - 80 V, 1 A NPN medium power transistor - 艾金森 Dratk BCP56-10H - 80 V, 1 A NPN medium power transistor - 艾金森 Dratk BCP56-16H - 80 V, 1 A NPN medium power transistor - 艾金森 Dratk BCP56H - 80 V, 1 A NPN medium power transistor - 艾金森 Dratk BCP56-10T - 80 V, 1 A NPN medium power transistors - 艾金森 Dratk BCP56-16T - 80 V, 1 A NPN medium power transistors - 艾金森 Dratk BCP56T - 80 V, 1 A NPN medium power transistors - 艾金森 Dratk BC68-25PA - 20 V, 2 A NPN medium power transistor - 艾金森 Dratk BC68PA - 20 V, 2 A NPN medium power transistor - 艾金森 Dratk BC868 - 20 V, 2 A NPN medium power transistor - 艾金森 Dratk
SN74HCT138
3 线路至 8 线路解码器/多路解复用器

热度 25

The ’HCT138 devices are designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders can 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 usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoders is negligible.

The conditions at the binary-select inputs and the three enable inputs select one of eight output lines. Two active-low (G)\ and one active-high (G) enable inputs reduce the need for external gates or inverters when expanding. A 24-line decoder can be implemented without external inverters, and a 32-line decoder requires only one inverter. An enable input can be used as a data input for demultiplexing applications.


  • Operating Voltage Range of 4.5 V to 5.5 V
  • Outputs Can Drive Up To 10 LSTTL Loads
  • Low Power Consumption, 80-µA Max ICC
  • Typical tpd = 17 ns
  • ±4-mA Output Drive at 5 V
  • Low Input Current of 1 µA Max
  • Inputs Are TTL-Voltage Compatible
  • Designed Specifically for High-Speed Memory Decoders and Data Transmission Systems
  • Incorporate Three Enable Inputs to Simplify Cascading and/or Data Reception

SN74HCT138
Function Decoder
Demultiplexer
Technology Family HCT
VCC(Min)(V)4.5
VCC(Max)(V)5.5
Channels(#)1
Voltage(Nom)(V)5
F @ Nom Voltage(Max)(Mhz)25
ICC @ Nom Voltage(Max)(mA)0.08
tpd @ Nom Voltage(Max)(ns)45
Configuration 3:8
Type Standard
Output Drive (IOL/IOH)(Max)(mA)4/-4
Rating Catalog
Operating Temperature Range(C)-40 to 85
Package Group PDIP
SO
SOIC
TSSOP
Package Size: mm2:W x L (PKG) See datasheet (PDIP)
16SO: 80 mm2: 7.8 x 10.2(SO)
16SOIC: 59 mm2: 6 x 9.9(SOIC)
16TSSOP: 32 mm2: 6.4 x 5(TSSOP)
Bits(#)8
Digital input leakage(Max)(uA)5
ESD Charged Device Model(kV)0.75
ESD HBM(kV)2

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