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IDT54FCT16501CTEB fiches techniques PDF

Integrated Device Technology - FAST CMOS 18-BIT REGISTERED TRANSCEIVER

Numéro de référence IDT54FCT16501CTEB
Description FAST CMOS 18-BIT REGISTERED TRANSCEIVER
Fabricant Integrated Device Technology 
Logo Integrated Device Technology 





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IDT54FCT16501CTEB fiche technique
Integrated Device Technology, Inc.
FAST CMOS
18-BIT REGISTERED
TRANSCEIVER
IDT54/74FCT16501AT/CT/ET
IDT54/74FCT162501AT/CT/ET
IDT54/74FCT162H501AT/CT/ET
FEATURES:
CMOS technology. These high-speed, low-power 18-bit reg-
• Common features:
istered bus transceivers combine D-type latches and D-type
– 0.5 MICRON CMOS Technology
flip-flops to allow data flow in transparent, latched and clocked
– High-speed, low-power CMOS replacement for
ABT functions
modes. Data flow in each direction is controlled by output-
enable (OEAB and OEBA), latch enable (LEAB and LEBA)
Typical tSK(o) (Output Skew) < 250ps
and clock (CLKAB and CLKBA) inputs. For A-to-B data flow,
– Low input and output leakage 1µA (max.)
the device operates in transparent mode when LEAB is HIGH.
– ESD > 2000V per MIL-STD-883, Method 3015;
When LEAB is LOW, the A data is latched if CLKAB is held at
> 200V using machine model (C = 200pF, R = 0)
a HIGH or LOW logic level. If LEAB is LOW, the A bus data
– Packages include 25 mil pitch SSOP, 19.6 mil pitch
is stored in the latch/flip-flop on the LOW-to-HIGH transition of
TSSOP, 15.7 mil pitch TVSOP and 25 mil pitch Cerpack
Extended commercial range of -40°C to +85°C
CLKAB. OEAB is the output enable for the B port. Data flow
from the B port to the A port is similar but requires using OEBA,
• Features for FCT16501AT/CT/ET:
LEBA and CLKBA. Flow-through organization of signal pins
– High drive outputs (-32mA IOH, 64mA IOL)
simplifies layout. All inputs are designed with hysteresis for
– Power off disable outputs permit “live insertion”
improved noise margin.
– Typical VOLP (Output Ground Bounce) < 1.0V at
The FCT16501AT/CT/ET are ideally suited for driving
VCC = 5V, TA = 25°C
high-capacitance loads and low-impedance backplanes. The
• Features for FCT162501AT/CT/ET:
output buffers are designed with power off disable capability
– Balanced Output Drivers: ±24mA (commercial),
to allow "live insertion" of boards when used as backplane
±16mA (military)
drivers.
– Reduced system switching noise
The FCT162501AT/CT/ET have balanced output drive
– Typical VOLP (Output Ground Bounce) < 0.6V at
with current limiting resistors. This offers low ground bounce,
VCC = 5V,TA = 25°C
minimal undershoot, and controlled output fall times–reducing
• Features for FCT162H501AT/CT/ET:
the need for external series terminating resistors. The
– Bus Hold retains last active bus state during 3-state
FCT162501AT/CT/ET are plug-in replacements for the
– Eliminates the need for external pull up resistors
FCT16501AT/CT/ET and ABT16501 for on-board bus inter-
face applications.
DESCRIPTION:
The FCT162H501AT/CT/ET have "Bus Hold" which re-
tains the input's last state whenever the input goes to high
The FCT16501AT/CT/ET and FCT162501AT/CT/ET 18- impedance. This prevents "floating" inputs and eliminates the
bit registered transceivers are built using advanced dual metal need for pull-up/down resistors.
FUNCTIONAL BLOCK DIAGRAM
OEAB
CLKBA
LEBA
OEBA
CLKAB
LEAB
A1
CC
DD
B1
CC
DD
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
TO 17 OTHER CHANNELS
MILITARY AND COMMERCIAL TEMPERATURE RANGES
©1996 Integrated Device Technology, Inc.
5.10
2547 drw 01
AUGUST 1996
DSC-2547/8
1

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