PI74LPT16245CAEX Datasheet, PDF (1/6 Pages) Pericom Semiconductor Corporation – Fast CMOS 3.3V 16-Bit Bidirectional Transceiver

PI74LPT16245
Fast CMOS 3.3V 16-Bit
Bidirectional Transceiver
Product Features
• Compatible with LCX™ and LVT™ families of products
• Supports 5V Tolerant Mixed Signal Mode Operation
– Input can be 3V or 5V
– Output can be 3V or connected to 5V bus
• Advanced Low Power CMOS Operation
• Excellent output drive capability:
Balanced drives (24 mA sink and source)
• Pin compatible with industry standard double-density pinouts
• Low ground bounce outputs
• Hysteresis on all inputs
• Industrial operating temperature range: –40°C to +85°C
• Multiple center pins and distributed Vcc/GND pins minimize
switching noise
• Packaging (Pb-free & Green available):
– 48-pin 240 mil wide thin plastic TSSOP (A)
– 48-pin 300 mil wide plastic SSOP (V)
Product Description
The PI74LPT16245 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.
The PI74LPT16245 can be driven from either 3.3V or 5.0V
devices allowing this device to be used as a translator in a mixed
3.3/5.0V system.
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
08-0291
1
PS2068F 11/10/08