IDT74FCT163646 Datasheet, PDF (1/9 Pages) Integrated Device Technology – 3.3V CMOS 16-BIT BUS TRANSCEIVER/ REGISTERS

Integrated Device Technology, Inc.
3.3V CMOS
16-BIT BUS TRANSCEIVER/
REGISTERS
IDT74FCT163646/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 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 (xOE) 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
1OE
1DIR
1CLKBA
1SBA
1CLKAB
1SAB
1A1
A REG
D
C
B REG
D
C
2OE
2DIR
2CLKBA
2SBA
2CLKAB
2SAB
1B1 _2A1
A REG
D
C
B REG
D
C
2B1
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
©1996 Integrated Device Technology, Inc.
8.8
AUGUST 1996
DSC-2778/6
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