IDT74FCT163501A/C
3.3V CMOS 18-BIT REGISTERED TRANSCEIVER
INDUSTRIAL TEMPERATURE RANGE
3.3V CMOS 18-BIT
REGISTERED TRANSCEIVER
IDT74FCT163501A/C
鈥?0.5 MICRON CMOS Technology
鈥?Typical t
SK(o)
(Output Skew) < 250ps
鈥?ESD > 2000V per MIL-STD-883, Method 3015; > 200V using
machine model (C = 200pF, R = 0)
鈥?V
CC
= 3.3V 鹵 0.3V, Normal Range, or V
CC
= 2.7V to 3.6V, Extended
Range
鈥?CMOS power levels (0.4碌 W typ. static)
碌
鈥?Rail-to-rail output swing for increased noise margin
鈥?Low Ground Bounce (0.3V typ.)
鈥?Inputs (except I/O) can be driven by 3.3V or 5V components
鈥?Available in SSOP, TSSOP, and TVSOP packages
FEATURES:
DESCRIPTION:
The FCT163501 18-bit registered transceivers are built using advanced
dual metal CMOS technology. These high-speed, low-power 18-bit
registered bus transceivers combine D-type latches and D-type flip-flops to
allow data flow in transparent, latched and clocked modes. Data flow in each
direction is controlled by output-enable (OEAB and
OEBA),
latch enable
(LEAB and LEBA) and clock (CLKAB and CLKBA) inputs. For A-to-B data
flow, the device operates in transparent mode when LEAB is high. When
LEAB is low, the A data is latched if CLKAB is held at a high or low logic level.
If LEAB is low, the A bus data is stored in the latch/flip-flop on the low-to-high
transition of CLKAB. OEAB performs the output enable function on the B port.
Data flow from B port to A port is similiar but requires using
OEBA,
LEBA
and CLKBA. Flow-through organization of signal pins simplifies layout. All
inputs are designed with hysteresis for improved noise margin.
The FCT163501 has series current limiting resistors. These offer low
ground bounce, minimal undershoot, and controlled output fall times-
reducing the need for external series terminating resistors.
FUNCTIONAL BLOCK DIAGRAM
OEAB
CLKBA
LEBA
OEBA
CLKAB
LEAB
1
30
28
27
55
2
C
A
1
3
C
D
54
D
B
1
C
D
C
D
TO 17 OTHER CHANNELS
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
1
漏 2002 Integrated Device Technology, Inc.
APRIL 2002
DSC-2776/6
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