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PI74ALVCH32501 PDF预览

PI74ALVCH32501

更新时间: 2024-10-26 23:27:39
品牌 Logo 应用领域
其他 - ETC /
页数 文件大小 规格书
8页 638K
描述
Logic | 18-Bit Universal Transceiver

PI74ALVCH32501 数据手册

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PI74ALVCH32501  
36-Bit Universal Bus Transceiver  
with 3-State Outputs  
Product Features  
ProductDescription  
Pericom Semiconductor’s PI74ALVCH series of logic circuits are  
produced using the Company’s advanced 0.5 micron CMOS  
technology, achieving industry leading speed.  
· PI74ALVCH32501 is designed for low voltage operation,  
Vcc = 1.65 to 3.6V  
· Bus Hold on data inputs eliminates the need for external  
pullup resistors  
The36-bitPI74ALVCH32501universalbustransceiver isdesigned  
for1.65Vto3.6VV operation.  
CC  
· Industrial operation at –40ºC to 85ºC  
· Packages available:  
This device can be used as two 18-bit transceivers or one 36-bit  
transceiver. Data flow in each direction is controlled by output-  
enable (OEAB and OEBA), latch-enable (LEAB and LEBA), and  
clock(CLKABandCLKBA)inputs.ForA-to-Bdataflow,thedevice  
operatesinthetransparentmodewhen LEABishigh. WhenLEAB  
is low, the A-data is latched if CLKAB is held at a  
high or low logic level. If LEAB is low, the A data is stored in the  
latch/flip-flop on the low-to-high transition of CLKAB.  
WhenOEABishigh,theoutputsareactive.WhenOEABislow,the  
outputs are in the high-impedance state.  
114 Ball, 16mm x 5.5mm x 1.4mm Low Profile  
Fine Pitch Ball GridArray,  
LFBGA(NB114)  
Logic Block Diagram (Positive Logic), Two Sets  
DataflowforBtoAissimilar tothatofAtoBbutusesOEBA,LEBA,  
and CLKBA. The output enables are complementary (OEAB is  
active high and OEBA is active low).  
To ensure the high-impedance state during power up or power  
down, OEBA should be tied to V through a pullup resistor and  
CC  
OEAB should be tied to GND through a pulldown resistor; the  
minimumvalue of the resistor is determined by the current-sinking  
capability of the driver.  
Active bus-hold circuitry is provided to hold unused or floating  
data inputs at a logic level.  
The PI74ALVCH32501 is characterized for operation from  
–40°C to 85°C.  
PS8405A  
09/15/99  
1

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