SCCS041B 鈥?SEPTEMBER 1994 鈥?REVISED SEPTEMBER 2001
CY74FCT2541T
8 BIT BUFFER/LINE DRIVER
WITH 3 STATE OUTPUTS
D
Function and Pinout Compatible With FCT
and F Logic
Q OR SO PACKAGE
(TOP VIEW)
D
25-鈩?Output Series Resistors to Reduce
Transmission-Line Reflection Noise
D
Reduced V
OH
(Typically = 3.3 V) Versions
of Equivalent FCT Functions
D
Edge-Rate Control Circuitry for
D
D
Significantly Improved Noise
Characteristics
I
off
Supports Partial-Power-Down Mode
Operation
ESD Protection Exceeds JESD 22
鈥?2000-V Human-Body Model (A114-A)
鈥?200-V Machine Model (A115-A)
鈥?1000-V Charged-Device Model (C101)
Matched Rise and Fall Times
Fully Compatible With TTL Input and
Output Logic Levels
12-mA Output Sink Current
15-mA Output Source Current
3-State Outputs
OE
A
D
0
D
1
D
2
D
3
D
4
D
5
D
6
D
7
GND
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
V
CC
OE
B
O
0
O
1
O
2
O
3
O
4
O
5
O
6
O
7
D
D
D
D
description
The CY74FCT2541T is an octal buffer and line driver designed to be employed as a memory-address driver,
clock driver, and bus-oriented transmitter/receiver. On-chip termination resistors at the outputs reduce system noise
caused by reflections. The CY74FCT2541T can replace the CY74FCT541T to reduce noise in an existing design.
The speed of the CY74FCT2541T is comparable to bipolar logic counterparts, while reducing power dissipation.
Input and output voltage levels allow direct interface with TTL and CMOS devices without external components.
This device is fully specified for partial-power-down applications using I
off
. The I
off
circuitry disables the outputs,
preventing damaging current backflow through the device when it is powered down.
ORDERING INFORMATION
TA
PACKAGE鈥?/div>
QSOP 鈥?Q
SOIC 鈥?SO
QSOP 鈥?Q
鈥?0擄C to 85擄C
40 C 85 C
SOIC 鈥?SO
QSOP 鈥?Q
SOIC 鈥?SO
Tape and reel
Tube
Tape and reel
Tape and reel
Tube
Tape and reel
Tape and reel
Tube
SPEED
(ns)
4.1
4.1
4.1
4.8
4.8
4.8
8
8
ORDERABLE
PART NUMBER
CY74FCT2541CTQCT
CY74FCT2541CTSOC
CY74FCT2541CTSOCT
CY74FCT2541ATQCT
CY74FCT2541ATSOC
CY74FCT2541ATSOCT
CY74FCT2541TQCT
CY74FCT2541TSOC
FCT2541A
FCT2541
FCT2541C
FCT2541A
TOP-SIDE
MARKING
FCT2541C
FCT2541
Tape and reel
8
CY74FCT2541TSOCT
鈥?Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright
錚?/div>
2001, Texas Instruments Incorporated
POST OFFICE BOX 655303
鈥?/div>
DALLAS, TEXAS 75265
1
1
2
3
4
5
6
7
