IDT74CBTLVR16292 Datasheet, PDF (1/5 Pages) Integrated Device Technology – LOW-VOLTAGE 12-BIT 1:2 MUX / DEMUX BUS SWITCH WITH INTERNAL PULL DOWN RESISTORS

IDT74CBTLVR16292
LOW-VOLTAGE 12-BIT 1:2 MUX / DEMUX BUS SWITCH
INDUSTRIAL TEMPERATURE RANGE
LOW-VOLTAGE 12-BIT 1:2
MUX / DEMUX BUS SWITCH
WITH INTERNAL PULL DOWN
RESISTORS
IDT74CBTLVR16292
FEATURES:
• Isolation Under Power-Off Conditions
• Make-before-break feature
• Over-voltage tolerant
• Internal 500Ω pull-down resistor to GND
• Both A and B ports have 25Ω series dampening resistors
• Latch-up performance exceeds 100mA
• VCC = 2.3V - 3.6V, normal range
• ESD >2000V per MIL-STD-883, Method 3015; >200V using
machine model (C = 200pF, R = 0)
• Available in SSOP, TSSOP, and TVSOP packages
DESCRIPTION:
The CBTLVR16292 is a single 12-bit multiplexing / demultiplexing bus
switch, which provides high speed switching. Both A and B ports have 25Ω
series dampening resistors to minimize undershoot, reflection noise, and
charge sharing effects. The demultiplexer side has a 500Ω resistor
termination to GND to eliminate floating nodes.
When the select (S) input is low, the A port is connected to the B1 port,
and the R pulldown is connected to the B2 port. Similarly, when the S input
is high, A port is connected to B2 port and the R pulldown is connected to
B1 port.
APPLICATIONS:
• 3.3V High Speed Bus Switching and Bus Isolation
• Resource sharing
FUNCTIONAL BLOCK DIAGRAM
1A ²
SW
54
1B1
SIMPLIFIED SCHEMATIC, EACH
SWITCH
RPULLDOWN
RPULLDOWN
A
SW
53
1B2
27
12A
SW
30
12B1
RPULLDOWN
RPULLDOWN
30
SW
12B2
1
S
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
1
c 2002 Integrated Device Technology, Inc.
B
SELECT CONTROL
CIRCUITRY
AUGUST 2002
DSC-5891/4