IDT74FCT163501 Datasheet, PDF (1/7 Pages) Integrated Device Technology – 3.3V CMOS 18-BIT REGISTERED TRANSCEIVER

Integrated Device Technology, Inc.
3.3V CMOS
18-BIT REGISTERED
TRANSCEIVER
IDT74FCT163501/A/C
FEATURES:
• 0.5 MICRON CMOS Technology
• Typical tSK(o) (Output Skew) < 250ps
• 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 and 15.7 mil pitch TVSOP
• Extended commercial range of -40°C to +85°C
• VCC = 3.3V ±0.3V, Normal Range or
VCC = 2.7 to 3.6V, Extended Range
• CMOS power levels (0.4µW typ. static)
• Rail-to-Rail output swing for increased noise margin
• Low Ground Bounce (0.3V typ.)
• Inputs (except I/O) can be driven by 3.3V or 5V
components
DESCRIPTION:
The FCT163501/A/C 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 transpar-
ent 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/A/C have 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
C
C
B1
A1
D
D
C
C
D
D
TO 17 OTHER CHANNELS
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
COMMERCIAL TEMPERATURE RANGE
©1996 Integrated Device Technology, Inc.
8.6
2776 drw 01
AUGUST 1996
DSC-2776/4
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