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CY54FCT138T

Part Number	CY54FCT138T
Manufacturer	Texas Instruments
Description	1-OF-8 DECODERS
Published	May 10, 2020
Detailed Description	CY54FCT138T, CY74FCT138T 1-OF-8 DECODERS D Function, Pinout, and Drive Compatible With FCT and F Logic D Reduced VOH (T...
Datasheet	CY54FCT138T PDF File

Overview

CY54FCT138T, CY74FCT138T 1-OF-8 DECODERS D Function, Pinout, and Drive Compatible With FCT and F Logic D Reduced VOH (Typically = 3.
3 V) Versions of Equivalent FCT Functions D Edge-Rate Control Circuitry for Significantly Improved Noise Characteristics D Ioff Supports Partial-Power-Down Mode Operation D Matched Rise and Fall Times D Fully Compatible With TTL Input and Output Logic Levels D Dual 1-of-8 Decoder With Enables D ESD Protection Exceeds JESD 22 – 2000-V Human-Body Model (A114-A) – 200-V Machine Model (A115-A) – 1000-V Charged-Device Model (C101) D CY54FCT138T – 32-mA Output Sink Current – 12-mA Output Source Current D CY74FCT138T – 64-mA Output Sink Current – 32-mA Output Source Current NC NC O6 O5 SCCS013B – MAY 1994 – REVISED OCTOBER 2001 CY54FCT138T .
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D PACKAGE CY74FCT138T .
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Q OR SO PACKAGE (TOP VIEW) A0 A1 A2 E1 E2 E3 O7 GND 1 2 3 4 5 6 7 8 16 VCC 15 O0 14 O1 13 O2 12 O3 11 O4 10 O5 9 O6 CY54FCT138T .
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L PACKAGE (TOP VIEW) VCC O0 3 2 1 20 19 A2 4 18 O1 E1 5 17 O2 NC 6 16 NC E2 7 15 O3 E3 8 14 O4 9 10 11 12 13 O7 A1 GND A0 description NC – No internal connection The ’FCT138T 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 (O0–O7).
The ’FCT138T devices feature three enable inputs: two active low (E1, E2) and one active high (E3).
All outputs are high unless E1 and E2 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 ’FCT138T 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.
PIN DESCRIPTION NAME DESCRIPTION A Address inputs E1, E2 E3 O Enable inputs (active low) Enable input (active high) Outputs Please be aware th...

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CY54FCT138T 1-OF-8 DECODERS - Texas Instruments

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