Integrated Device Technology, Inc.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
AUGUST 1995
1995 Integrated Device Technology, Inc.
6.12
DSC-4216/6
1
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
D
0
D
O
G
O
0
D
1
D
O
G
O
1
D
2
D
O
G
O
2
D
3
D
O
G
O
3
D
4
D
O
G
O
4
D
5
D
O
G
O
5
D
6
D
O
G
O
6
D
7
D
O
G
O
7
LE
OE
FUNCTIONAL BLOCK DIAGRAM IDT54/74FCT373T/2373T AND IDT54/74FCT573T/2573T
D
0
D
O
G
O
0
D
1
D
O
G
O
1
D
2
D
O
G
O
2
D
3
D
O
G
O
3
D
4
D
O
G
O
4
D
5
D
O
G
O
5
D
6
D
O
G
O
6
D
7
D
O
G
O
7
LE
OE
FUNCTIONAL BLOCK DIAGRAM IDT54/74FCT533T
2564 cnv* 02
2564 cnv* 01
IDT54/74FCT373T/AT/CT/DT - 2373T/AT/CT
IDT54/74FCT533T/AT/CT
IDT54/74FCT573T/AT/CT/DT - 2573T/AT/CT
FAST CMOS OCTAL
TRANSPARENT
LATCHES
FEATURES:
Common features:
–
Low input and output leakage
≤
1
μ
A (max.)
–
CMOS power levels
–
True TTL input and output compatibility
– V
OH
= 3.3V (typ.)
– V
OL
= 0.3V (typ.)
–
Meets or exceeds JEDEC standard 18 specifications
–
Product available in Radiation Tolerant and Radiation
Enhanced versions
–
Military product compliant to MIL-STD-883, Class B
and DESC listed (dual marked)
–
Available in DIP, SOIC, SSOP, QSOP, CERPACK
and LCC packages
Features for FCT373T/FCT533T/FCT573T:
–
Std., A, C and D speed grades
–
High drive outputs (-15mA I
OH
, 48mA I
OL
)
–
Power off disable outputs permit “l(fā)ive insertion”
Features for FCT2373T/FCT2573T:
–
Std., A and C speed grades
–
Resistor output
(-15mA I
OH
, 12mA I
OL
Com.)
(-12mA I
OH
, 12mA I
OL
Mil.)
–
Reduced system switching noise
DESCRIPTION:
The FCT373T/FCT2373T, FCT533T and FCT573T/
FCT2573T are octal transparent latches built using an ad-
vanced dual metal CMOS technology. These octal latches
have 3-state outputs and are intended for bus oriented appli-
cations. 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.
The FCT2373T and FCT2573T have balanced drive out-
puts with current limiting resistors. This offers low ground
bounce, minimal undershoot and controlled output fall times-
reducing the need for external series terminating resistors.
The FCT2xxxT parts are plug-in replacements for FCTxxxT
parts.