IDTQS74FCT2157AT Datasheet, PDF (1/6 Pages) Integrated Device Technology – HIGH-SPEED CMOS QUAD 2-INPUT MULTIPLEXER

IDTQS74FCT2157AT/CT
HIGH-SPEED CMOS QUAD 2-INPUT MULTIPLEXER
HIGH-SPEED CMOS
QUAD 2-INPUT
MULTIPLEXER
INDUSTRIAL TEMPERATURE RANGE
IDTQS74FCT2157AT/CT
FEATURES:
• 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 25Ω series resistor outputs reduce reflection and other
system noise
• A and C speed grades with 4.3ns for C
• IOL = 12mA
• Available in SOIC, QSOP, and S1 packages
DESCRIPTION:
The IDTQS74FCT2157T is a high-speed CMOS TTL-compatible,
quad, 2-input multiplexer with a 25Ω 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
E
S
15
1
I0A
I1A
I0B
I1B
I0C
I1C
I0D
I1D
2
3
5
6
11
10
14
13
25Ω
4
YA
25Ω
7
YB
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
1
© 2001 Integrated Device Technology, Inc.
25Ω
9
YC
25Ω
12
YD
JANUARY 2001
DSC-5401/3