CY74FCT138T 1-of-8 Decoder | TI.com

CY74FCT138T
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1-of-8 Decoder

1-of-8 Decoder - CY74FCT138T
Datasheet
 

Description

The \x92FCT138T devices are 1-of-8 decoders. These devices accept three binary weighted inputs (A0, A1, A2) and, when enabled, provide eight mutually exclusive active-low outputs (O\0\x96O\7). The \x92FCT138T devices feature three enable inputs: two active low (E\1, E\2) and one active high (E3 ).

All outputs are high unless E\1 and E\2 are low and E3 is high. This multiple-enable function allows easy parallel expansion of the device to a 1-of-32 (five lines to 32 lines) decoder with just four \x92FCT138T devices and one inverter.

These devices are fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.

Features

  • Function, Pinout, and Drive Compatible With FCT and F Logic
  • Reduced VOH (Typically = 3.3 V) Versions of Equivalent FCT Functions
  • Edge-Rate Control Circuitry for Significantly Improved Noise Characteristics
  • Ioff Supports Partial-Power-Down Mode Operation
  • Matched Rise and Fall Times
  • Fully Compatible With TTL Input and Output Logic Levels
  • Dual 1-of-8 Decoder With Enables
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)
    • 1000-V Charged-Device Model (C101)
  • CY54FCT138T
    • 32-mA Output Sink Current
    • 12-mA Output Source Current
  • CY74FCT138T
    • 64-mA Output Sink Current
    • 32-mA Output Source Current

Parametrics

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Part number Order Function Technology Family VCC (Min) (V) VCC (Max) (V) Channels (#) Voltage (Nom) (V) F @ nom voltage (Max) (MHz) ICC @ nom voltage (Max) (mA) tpd @ nom Voltage (Max) (ns) Configuration Type IOL (Max) (mA) IOH (Max) (mA) Rating Operating temperature range (C) Package Group Package size: mm2:W x L (PKG) Bits (#) Digital input leakage (Max) (uA) ESD CDM (kV) ESD HBM (kV)
CY74FCT138T Order now Decoder
Demultiplexer    
FCT     4.75     5.25     1     5     70     0.2     6     3:8     Standard     64     -32     Catalog     -40 to 85     SOIC | 16
SSOP | 16    
16SOIC: 77 mm2: 7.5 x 10.3 (SOIC | 16)
16SSOP: 29 mm2: 6 x 4.9 (SSOP | 16)    
8     5     0.75     2    
CY54FCT138T Samples not available Decoder/Demultiplexer     FCT     4.75     5.25     1     5     70     0.2     6     3:8     Standard     64/-32       Military     -55 to 125     CDIP | 16
LCCC | 20    
16CDIP: 135 mm2: 6.92 x 19.56 (CDIP | 16)
20LCCC: 79 mm2: 8.89 x 8.89 (LCCC | 20)    
8     5     0.75     2