Integrated Device Technology, Inc.
鈥?/div>
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?Packages include 25 mil pitch SSOP, 19.6 mil pitch
TSSOP and 15.7 mil pitch TVSOP
鈥?Extended commercial range of -40擄C to +85擄C
鈥?V
CC
= 3.3V
鹵0.3V,
Normal Range or
V
CC
= 2.7 to 3.6V, Extended Range
鈥?CMOS power levels (0.4碌W typ. static)
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
DESCRIPTION:
The FCT163646/A/C 16-bit registered transceivers are
built using advanced dual metal CMOS technology. These
high-speed, low-power devices are organized as two inde-
pendant 8-bit bus transceivers with 3-state D-type registers.
The control circuitry is organized for multiplexed transmission
of data between A bus and B bus either directly or from the
internal storage registers. Each 8-bit transceiver/register
features direction control (xDIR), over-riding Output Enable
control (x
OE
) and Select lines (xSAB and xSBA) to select
either real-time data or stored data. Separate clock inputs are
provided for A and B port registers. Data on the A or B data
bus, or both, can be stored in the internal registers by the
LOW-to-HIGH transitions at the appropriate clock pins. Flow-
through organization of signal pins simplifies layout. All inputs
are designed with hysteresis for improved noise margin.
The FCT163646/A/C have series current limiting resistors.
This offers low ground bounce, minimal undershoot, and
controlled output fall times-reducing the need for external
series terminating resistors.
FUNCTIONAL BLOCK DIAGRAM
1
OE
1
DIR
1
CLKBA
1
SBA
1
CLKAB
1
SAB
B REG
2
OE
2
DIR
2
CLKBA
2
SBA
2
CLKAB
2
SAB
B REG
D
C
1
A
1
A REG
1
B
1
2
A
1
A REG
D
C
2
B
1
D
C
D
C
TO 7 OTHER CHANNELS
2778 drw 01
TO 7 OTHER CHANNELS
2778 drw 02
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
COMMERCIAL TEMPERATURE RANGES
漏1996
Integrated Device Technology, Inc.
AUGUST 1996
8.8
DSC-2778/6
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