IDT54/74FCT841A/B/C
HIGH-PERFORMANCE
CMOS BUS INTERFACE
LATCHES
Integrated Device Technology, Inc.
FEATURES:
DESCRIPTION:
The IDT54/74FCT800 series is built using an advanced
dual metal CMOS technology.
• Equivalent to AMD’s Am29841-46 bipolar registers in
pinout/function, speed and output drive over full tem-
perature and voltage supply extremes
The IDT54/74FCT840 series bus interface latches are
designed to eliminate the extra packages required to buffer
existinglatchesandprovideextradatawidthforwider address/
data paths or buses carrying parity. The IDT54/74FCT841 is
a buffered, 10-bit wide version of the popular ‘373 function.
All of the IDT54/74FCT800 high-performance interface
familyaredesignedforhigh-capacitanceloaddrivecapability,
while providing low-capacitance bus loading at both inputs
and outputs. All inputs have clamp diodes and all outputs are
designed for low-capacitance bus loading in the high-imped-
ance state.
• IDT54/74FCT841A equivalent to FAST speed
• IDT54/74FCT841B 25% faster than FAST
• IDT54/74FCT841C 40% faster than FAST
• Buffered common latch enable, clear and preset inputs
• IOL = 48mA (commercial) and 32mA (military)
• Clamp diodes on all inputs for ringing suppression
• CMOS power levels (1mW typ. static)
• TTL input and output level compatible
• CMOS output level compatible
• Substantially lower input current levels than AMD’s
bipolar Am29800 series (5µA max.)
• Product available in Radiation Tolerant and Radiation
Enhanced versions
• Military product compliant to MIL-STD-883, Class B
FUNCTIONAL BLOCK DIAGRAM
D0
DN
PRE
P
D
P
D
Q
Q
LE
LE
CLR
CLR
CLR
LE
OE
Y0
YN
2607 drw 01
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
FAST is a trademark of National Semiconductor Co.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
APRIL 1994
1994 Integrated Device Technology, Inc.
7.22
DSC-4603/2
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