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PS2032K
11/06/08
Description
Pericom Semiconductor’s PI74FCT16245Tand PI74FCT162245T
are 16-bit bidirectional transceivers designed for asynchronous two-
way communication between data buses. The direction control
input pin (xDIR) determines the direction of data ow through the
bidirectional transceiver. The Direction and Ouput Enable controls
are designed to operate these devices 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 Hi-Z condition.
The PI74FCT16245T output buffers are designed with a power off
disable allowing “live insertion” of boards when used as backplane
drivers.
The PI74FCT162245T has ±24mA balanced output drivers. It is
designed with current limiting resistors at its outputs to control the
output edge rate resulting in lower ground bounce and undershoot.
This eliminates the need for external terminating resistors for most
interface applications.
Block Diagram
Features
Common Features
PI74FCT16245T and PI74FCT162245T are high-speed, low-
power devices with high-current drive
VCC = 5V ±10%
Hysteresis on all inputs
PI74FCT16245T Features
High output drive: IOH = –32mA; IOL = 64mA
Power off disable outputs permit “live insertion”
Typical VOLP (Output Ground Bounce)
< 1.0V at VCC = 5V, TA = 25°C
Packaging (Pb-free & Green available):
– 48-pin 240-mil wide plastic TSSOP (A)
– 48-pin 300-mil wide plastic SSOP (V)
– 48-pin 300-mil wide plastic TVSOP (K)
PI74FCT162245T Features
Balanced output drivers: ±24mA
Reduced system switching noise
Typical VOLP (Output Ground Bounce)
< 0.6V at VCC = 5V, TA = 25°C
Packaging (Pb-free & Green available):
– 48-pin 240-mil wide plastic TSSOP (A)
– 48-pin 300-mil wide plastic SSOP (V)
– 48-pin 300-mil wide plastic TVSOP (K)
PI74FCT16245T
PI74FCT162245T
Fast CMOS 16-Bit Bidirectional Transceivers
1B0
1A0
1OE
1DIR
1B1
1A1
1B2
1A2
1B3
1A3
1B4
1A4
1B5
1A5
1B6
1A6
1B7
1A7
2B0
2A0
2OE
2DIR
2B1
2A1
2B2
2A2
2B3
2A3
2B4
2A4
2B5
2A5
2B6
2A6
2B7
2A7
08-0291
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相关代理商/技术参数
PI74FCT16245DTA 制造商:未知厂家 制造商全称:未知厂家 功能描述:Dual 8-bit Bus Transceiver
PI74FCT16245DTK 制造商:未知厂家 制造商全称:未知厂家 功能描述:Dual 8-bit Bus Transceiver
PI74FCT16245DTSP 制造商:未知厂家 制造商全称:未知厂家 功能描述:Dual 8-bit Bus Transceiver
PI74FCT16245DTV 制造商:未知厂家 制造商全称:未知厂家 功能描述:Dual 8-bit Bus Transceiver
PI74FCT16245ETA 制造商:未知厂家 制造商全称:未知厂家 功能描述:Dual 8-bit Bus Transceiver
PI74FCT16245ETK 制造商:未知厂家 制造商全称:未知厂家 功能描述:Dual 8-bit Bus Transceiver
PI74FCT16245ETV 制造商:未知厂家 制造商全称:未知厂家 功能描述:Dual 8-bit Bus Transceiver
PI74FCT16245T 制造商:PERICOM 制造商全称:Pericom Semiconductor Corporation 功能描述:Fast CMOS 16-Bit Bidirectional Transceivers