IDT74CBTLV3244 Datasheet, PDF (1/5 Pages) Integrated Device Technology – LOW-VOLTAGE OCTAL BUS SWITCH

IDT74CBTLV3244
LOW-VOLTAGE OCTAL BUS SWITCH
LOW-VOLTAGE OCTAL
BUS SWITCH
INDUSTRIAL TEMPERATURE RANGE
IDT74CBTLV3244
FEATURES:
– Pin-out compatible with standard '244 logic
– 5Ω A/B bidirectional switch
– Isolation Under Power-Off Conditions
– Over-voltage tolerant
– 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, QSOP, and TSSOP packages
DESCRIPTION:
The octal bus switch has standard 244 pinouts. The CBTLV3244 is
designed for asynchronous communication between data buses. Sets of
four switches are controlled by one output Enable (OE). When OE is low,
the set of four bus switches is on and port A is connected to port B. When
OE is high, the set of four bus switches is off and a high impedance exists
between port A and port B.
To ensure the high-impedance state during power up or power down,
both OEs should be tied to VCC through a pullup resistor.
APPLICATIONS:
– 3.3V High Speed Bus Switching and Bus Isolation
FUNCTIONAL BLOCK DIAGRAM
2
1A1
18
SW
1B1
SIMPLIFIED SCHEMATIC, EACH
SWITCH
8
1A4
1
1OE
11
2A1
12
SW
1B4
A
9
SW
2B1
B
OE
17
2A4
3
SW
2B4
19
2OE
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
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1
c 2001 Integrated Device Technology, Inc.
SEPTEMBER 2001
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