廬
FAST CMOS OCTAL
TRANSPARENT LATCHES
Integrated Device Technology, Inc.
IDT54/74FCT373/A/C
IDT54/74FCT533/A/C
IDT54/74FCT573/A/C
FEATURES
鈥?IDT54/74FCT373/533/573 equivalent to FAST鈩?speed
and drive
鈥?IDT54/74FCT373A/533A/573A up to 30% faster than
FAST
鈥?Equivalent to FAST output drive over full temperature
and voltage supply extremes
鈥?I
OL
= 48mA (commercial) and 32mA (military)
鈥?CMOS power levels (1mW typ. static)
鈥?Octal transparent latch with 3-state output control
鈥?JEDEC standard pinout for DIP and LCC
鈥?Product available in Radiation Tolerant and Radiation
Enhanced versions
鈥?Military product compliant to MIL-STD-883, Class B
DESCRIPTION
The IDT54/74FCT373/A/C, IDT54/74FCT533/A/C and
IDT54/74FCT573/A/C are octal transparent latches built us-
ing an advanced dual metal CMOS technology. These octal
latches have 3-state outputs and are intended for bus oriented
applications. The flip-flops appear transparent to the data
when Latch Enable (LE) is HIGH. When LE is LOW, the data
that meets the set-up time is latched. Data appears on the bus
when the Output Enable (
OE
) is LOW. When
OE
is HIGH, the
bus output is in the high-impedance state.
FUNCTIONAL BLOCK DIAGRAMS
IDT54/74FCT373 AND IDT54/74FCT573
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
2602 cnv* 01
IDT54/74FCT533
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
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
FAST is a trademark of National Semiconductor Co.
2602 cnv* 02
MILITARY AND COMMERCIAL TEMPERATURE RANGES
漏1992
Integrated Device Technology, Inc.
MAY 1992
DSC-4624/2
7.12
1