MILITARY AND COMMERCIAL TEMPERATURE RANGES AUGUST 1996
1996 Integrated Device Technology, Inc. 5.1 DSC–4226/9
1
Integrated Device Technology, Inc.
DESCRIPTION:
The FCT16240T/AT/CT/ET and FCT162240T/AT/CT/ET
16-bit buffer/line drivers are built using advanced dual metal
CMOS technology. These high-speed, low-power devices
offer bus/backplane interface capability with improved packing
density. The flow-through organization of signal pins simplifies
layout. The three-state controls are designed to operate these
devices in a Quad-Nibble, Dual-Byte or single 16-bit word
mode. All inputs are designed with hysteresis for improved
noise margin.
The FCT16240T/AT/CT/ET are ideally suited for driving
high capacitance loads and low-impedance backplanes. The
output buffers are designed with power off disable capability
to allow "live insertion" of boards when used as backplane
drivers.
The FCT162240T/AT/CT/ET have balanced output drive
with current limiting resistors. This offers low ground bounce,
minimal undershoot, and controlled output fall times– reduc-
ing the need for external series terminating resistors. The
FCT162240T/AT/CT/ET are plug-in replacements for
FCT16240T/AT/CT/ET and 54/74ABT16240 for on-board in-
terface applications.
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
FAST CMOS 16-BIT
BUFFER/LINE DRIVER
FUNCTIONAL BLOCK DIAGRAM
1OE
1A1
1A2
1
A3
1
A4
1
Y1
1
Y2
1
Y3
1
Y4
2
OE
2A1
2A2
2
A3
2
A4
2
Y1
2
Y2
2
Y3
2
Y4
2541 drw 01
3OE
3A1
3A2
3
A3
3
A4
3
Y1
3
Y2
3
Y3
3
Y4
4
OE
4A1
4A2
4
A3
4
A4
4
Y1
4
Y2
4
Y3
4
Y4
2541 drw 02
IDT54/74FCT16240T/AT/CT/ET
IDT54/74FCT162240T/AT/CT/ET
FEATURES:
• Common features:
– 0.5 MICRON CMOS Technology
– High-speed, low-power CMOS replacement for
ABT functions
– Typical tSK(o) (Output Skew) < 250ps
– Low input and output leakage ≤1µA (max.)
– ESD > 2000V per MIL-STD-883, Method 3015;
> 200V using machine model (C = 200pF, R = 0)
– Packages include 25 mil pitch SSOP, 19.6 mil pitch
TSSOP, 15.7 mil pitch TVSOP and 25 mil pitch Cerpack
– Extended commercial range of -40°C to +85°C
–VCC = 5V ±10%
• Features for FCT16240T/AT/CT/ET:
– High drive outputs (-32mA IOH, 64mA IOL)
– Power off disable outputs permit “live insertion”
– Typical VOLP (Output Ground Bounce) < 1.0V at
VCC = 5V, TA = 25°C
• Features for FCT162240T/AT/CT/ET:
– Balanced Output Drivers: ±24mA (commercial),
±16mA (military)
– Reduced system switching noise
– Typical V
OLP (Output Ground Bounce) < 0.6V at
VCC = 5V,TA = 25°C
