鈭?/div>
CMOS power levels: <7.5mW static
Undershoot clamp diodes on all inputs
True TTL input and output compatibility
Ground bounce controlled outputs
Reduced output swing of 0 to 3.5V
Built-in 25鈩?series resistor outputs reduce reflection and other
system noise
Std., A and C speed grades with 4.3ns for C
I
OL
= 12mA
Available in SOIC, QSOP, and S1 packages
IDTQS74FCT2257T/AT/CT
DESCRIPTION:
The IDTQS74FCT2257T is a high-speed CMOS TTL-compatible,
quad, 2-input multiplexer with a 25鈩?resistor output, useful for driving
transmission lines and reducing system noise. All inputs have clamp diodes
for undershoot noise suppression. All outputs have ground bounce
suppression. Outputs will not load an active bus when Vcc is removed from
the device.
FUNCTIONAL BLOCK DIAGRAM
OE
15
S
1
I0A
2
I1A
3
I0B
5
I1B
6
I0C
11
I1C
10
I0D
14
I1D
13
25
鈩?/div>
4
7
25
鈩?/div>
9
25
鈩?/div>
12
25
鈩?/div>
Y
A
Y
B
Y
C
Y
D
INDUSTRIAL TEMPERATURE RANGE
1
c
2001 Integrated Device Technology, Inc.
MARCH 2001
DSC-5402/2
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