8-BIT BUFFER/LINE DRIVER
D Function and Pinout Compatible With FCT
and F Logic
D 25-Ω Output Series Resistors Reduce
Transmission-Line Reflection...
Description
D Function and Pinout Compatible With FCT
and F Logic
D 25-Ω Output Series Resistors Reduce
Transmission-Line Reflection Noise
D TTL-Output-Level Version of Equivalent
FCT Functions
D Edge-Rate Control Circuitry for
Significantly Improved Noise
Characteristics
D Ioff Supports Partial-Power-Down Mode
Operation
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 Fully Compatible With TTL Input and
Output Logic Levels
D 12-mA Output Sink Current
15-mA Output Source Current
D 3-State Outputs
CY74FCT2240T 8-BIT BUFFER/LINE DRIVER
WITH 3-STATE OUTPUTS
SCCS036A – SEPTEMBER 1994 – REVISED OCTOBER 2001
Q OR SO PACKAGE (TOP VIEW)
OEA DA0 OB0 DA1 OB1 DA2 OB2 DA3 OB3 GND
1 2 3 4 5 6 7 8 9 10
20 VCC 19 OEB 18 OA0 17 DB0 16 OA1 15 DB1 14 OA2 13 DB2 12 OA3 11 DB3
description
The CY74FCT2240T is an octal buffer and line driver that includes on-chip 25-Ω terminating resistors at each of the outputs to minimize noise resulting from reflections or standing waves in high-performance applications. The on-chip resistors reduce overall board space and component count. Designed to be employed as a memory address driver, clock driver, and bus-oriented transmitter/receiver, this device provides speed and drive capabilities commensurate with its fastest bipolar logic counterparts, while reducing power dissipation. The input and output voltage levels allow direct interface with TTL, NMOS, and CMOS devices, without...
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