PI74VCX16245 Datasheet, PDF (1/7 Pages) Pericom Semiconductor Corporation – 2.5V 16-Bit Bidirectional Transceiver with 3-State Outputs

PI74VCX16245
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2.5V 16-Bit Bidirectional Transceiver
with 3-State Outputs
Product Features
• The PI74VCX family is designed for low voltage operation
V_DD = 1.8V to 3.6V
• 3.6V I/O Tolerant Inputs and Outputs
• Supports Live Insertion
• Balanced output drive, ±24mA
• Uses patented Noise Reduction Circuitry
• Typical V_OLP (Output Ground Bounce)
< 0.6V at V_DD = 2.5V, T_A = 25ºC
• Typical V_OHV (Output V_OH Undershoot)
< -0.6V at V_DD = 2.5V, T_A = 25ºC
• Power-Off High Impedance inputs and outputs
• Industrial operation at –40°C to +85°C
• Packages available:
– 48-pin 240 mil. wide plastic TSSOP (A)
– 48-pin 300 mil. wide plastic SSOP (V)
Product Description
Pericom Semiconductor’s PI74VCX series of logic circuits are
produced in the Company’s advanced 0.35 micron CMOS
technology, achieving industry leading speed.
The PI74VCX16245 is a 16-bit bidirectional transceiver designed
for asynchronous two-way communication between data buses.
The direction control input pin (xDIR) determines the direction of
data flow through the bidirectional transceiver. The Direction and
Output Enable controls are designed to operate this device as either
two independent 8-bit transceivers or one 16-bit transceiver. The
output enable (OE) input, when HIGH, disables both A and B ports
by placing them in HIGH Z condition.
To ensure the high-impedance state during power up or power
down, OE should be tied to Vcc through a pull-up resistor; the
minimum value of the resistor is determined by the current sinking
ability of the driver.
The PI74VCX family is I/O Tolerant, allowing it to operate in
mixed 1.8V/3.6V systems.
Logic Block Diagram
1DIR
1A0
1A1
1A2
1A3
1A4
1A5
1A6
1A7
1OE
1B0
1B1
1B2
1B3
1B4
1B5
1B6
1B7
2DIR
2A0
2A1
2A3
2 A4
2A5
2A6
2A7
2A8
2OE
2B0
2B1
2B2
2B3
2B4
2B5
2B6
2B7
1
PS8325 09/14/98