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 FCT163543/A/C 16-bit latched transceivers are built
using advanced dual metal CMOS technology. These high-
speed, low-power devices are organized as two independent 8-
bit D-type latched transceivers with separate input and output
control to permit independent control of data flow in either
direction. For example, the A-to-B Enable (x
CEAB
) must be
LOW in order to enter data from the A port or to output data from
the B port. x
LEAB
controls the latch function. When x
LEAB
is
LOW, the latches are transparent. A subsequent LOW-to-
HIGH transition of x
LEAB
signal puts the A latches in the
storage mode. x
OEAB
performs output enable function on the
B port. Data flow from the B port to the A port is similar but
requires using x
CEBA
, x
LEBA
, and x
OEBA
inputs. Flow-through
organization of signal pins simplifies layout. All inputs are
designed with hysteresis for improved noise margin.
The FCT163543/A/C have series current limiting resistors.
These offer low ground bounce, minimal undershoot, and
controlled output fall times鈥搑educing the need for external
series terminating resistors.
FUNCTIONAL BLOCK DIAGRAM
1
OEBA
1
CEBA
1
LEBA
1
OEAB
1
CEAB
1
LEAB
2
OEBA
2
CEBA
2
LEBA
2
OEAB
2
CEAB
2
LEAB
C
1
A
1
2
A
1
C
1
B
1
D
C
D
D
C
D
2
B
1
TO 7 OTHER CHANNELS
3250 drw 01
TO 7 OTHER CHANNELS
3250 drw 02
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
COMMERCIAL TEMPERATURE RANGE
漏1996
Integrated Device Technology, Inc.
SEPTEMBER 1996
8.7
DSC-3250/2
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