CY54FCT138T

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 . . . D PACKAGE CY74FCT138T . . . 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 . . . 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 fun...