鈩?/div>
OCTAL
OCTAL TRANSPARENT LATCHES
TRANSPARENT LATCHES
Fast CMOS Octal
Transparent Latches
Product Features:
鈥?PI74FCT373/533/573/2373/2573T is pin compatible with bipolar
FAST鈩?Series at a higher speed and lower power
consumption
鈥?25鈩?series resistor on all outputs (FCT2XXX only)
鈥?TTL input and output levels
鈥?Low ground bounce outputs
鈥?Extremely low static power
鈥?Hysteresis on all inputs
鈥?Industrial operating temperature range: 鈥?0擄C to +85擄C
鈥?Packages available:
鈥?20-pin 173 mil wide plastic TSSOP (L)
鈥?20-pin 300 mil wide plastic DIP (P)
鈥?20-pin 150 mil wide plastic QSOP (Q)
鈥?20-pin 150 mil wide plastic TQSOP (R)
鈥?20-pin 300 mil wide plastic SOIC (S)
鈥?Device models available upon request
Product Description:
Pericom Semiconductor鈥檚 PI74FCT series of logic circuits are
produced in the Company鈥檚 advanced 0.6/0.8 micron CMOS
technology, achieving industry leading speed grades. All
PI74FCT2XXX devices have a built-in 25 ohm series resistor on
all outputs to reduce noise resulting from reflections, thus
eliminating the need for an external terminating resistor.
The PI74FCT373T/533T/573T and P174FCT2373T/2573T are
8-bit wide octal transparent latches designed with 3-state outputs
and are intended for bus oriented applications. When Latch Enable
(LE) is HIGH, the flip-flops appear transparent to the data. The
data that meets the set-up time when LE is LOW is latched. When
OE is HIGH, the bus output is in the high impedance state.
PI74FCT373/2373T and PI74FCT573/2573T Logic Block Diagram
D
0
D
O
G
G
D
1
D
O
G
D
2
D
O
G
D
3
D
O
G
D
4
D
O
G
D
5
D
O
G
D
6
D
O
G
D
7
D
O
LE
OE
O
0
O
1
O
2
O
3
O
4
O
5
O
6
O
7
PI74FCT533T Logic Block Diagram
D
0
D
O
G
G
D
1
D
O
G
D
2
D
O
G
D
3
D
O
G
D
4
D
O
G
D
5
D
O
G
D
6
D
O
G
D
7
D
O
LE
OE
O
0
O
1
O
2
O
3
O
4
O
5
O
6
O
7
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PS2015A 03/11/96
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