PI74AVC16245_06 Datasheet, PDF (1/11 Pages) Pericom Semiconductor Corporation – 2.5V 16-Bit Bidirectional Transceiver with 3-State Outputs

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2.5V 16-Bit Bidirectional Transceiver
with 3-State Outputs
Product Features
• PI74AVC+16245 is designed for low-voltage operation,
V_CC = 1.65V to 3.6V
• True ±24mA Balanced Drive @ 3.3V
• Compatible with Philips and T.I. AVC Logic family
• I_OFF supports partial power-down operation
• 3.6V I/O Tolerant inputs and outputs
• All outputs contain a patented DDC
(Dynamic Drive Control) circuit that reduces noise
without degrading propagation delay
• Industrial operation: –40°C to +85°C
• Packaging (Pb-free & Green available):
– 48-pin 240-mil wide plastic TSSOP
– 48-pin 173-mil wide plastic TVSOP
Product Description
The PI74AVC+16245 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 V_CC through a pull-up resistor; the
minimum value of the resistor is determined by the current sinking
ability of the driver.
Logic Block Diagram
1DIR
1A0
1A1
1A2
1A3
1A4
1A5
1A6
1A7
1OE
1B0
1B1
1B2
1B3
1B4
1B5
1B6
1B7
2DIR
2A0
2A1
2A2
2A3
2A4
2A5
2A6
2A7
2OE
2B0
2B1
2B2
2B3
2B4
2B5
2B6
2B7
06-0180
1
PS8524A 08/08/06