![](http://datasheet.mmic.net.cn/330000/IDT54FCT683ALB_datasheet_16402303/IDT54FCT683ALB_1.png)
Integrated Device Technology, Inc.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
APRIL 1994
1994 Integrated Device Technology, Inc.
7.23
DSC-4620/3
1
HIGH-PERFORMANCE
CMOS BUS
TRANSCEIVERS
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
FAST is a trademark of National Semiconductor Co.
FEATURES:
Equivalent to AMD’s Am29861-64 bipolar registers in
pinout/function, speed and output drive over full tempera-
ture and voltage supply extremes
IDT54/74FCT861A/863A equivalent to FAST
speed
IDT54/74FCT861B/863B 25% faster than FAST
High-speed symmetrical bidirectional transceivers
I
OL
= 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 (5
μ
A max.)
Product available in Radiation Tolerant and Radiation
Enhanced versions
Military product compliant to MIL-STD-883, Class B
DESCRIPTION:
The IDT54/74FCT800 series is built using an advanced
dual metal CMOS technology.
The IDT54/74FCT860 series bus transceivers provide
high-performance bus interface buffering for wide
data/address paths or buses carrying parity. The
IDT54/74FCT863 9-bit transceivers have NAND-ed output
enables for maximum control flexibility.
All of the IDT54/74FCT800 high-performance interface
family are designed for high-capacitance load drive capability
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- im-
pedance state.
FUNCTIONAL BLOCK DIAGRAMS
IDT54/74FCT861
IDT54/74FCT863
T
0
T
1
OER
T
9
-
R
0
R
1
OET
R
9
-
IDT54/74FCT861A/B
IDT54/74FCT863A/B
2610 drw 01
T
0
T
1
OER
T
8
-
R
0
R
1
OET
R
8
-
OET
1
2
OER
1
2
PRODUCT SELECTOR GUIDE
Device
10-Bit
9-Bit
Non-inverting
IDT54/74FCT861
IDT54/74FCT863