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PI74ALVCH16952V PDF预览

PI74ALVCH16952V

更新时间: 2024-10-26 23:27:39
品牌 Logo 应用领域
其他 - ETC 总线收发器
页数 文件大小 规格书
5页 295K
描述
Dual 8-bit Bus Transceiver

PI74ALVCH16952V 数据手册

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PI74ALVCH16952  
16-Bit Registered 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.  
PI74ALVCH16952 is designed for low voltage operation  
V = 2.3V to 3.6V  
CC  
Hysteresis on all inputs  
ThePI74ALVCH1695216-bitregisteredtransceiverisdesignedfor  
2.3Vto3.6VVCC operation.  
Typical V  
(Output Ground Bounce)  
OLP  
< 0.8V atV = 3.3V, T = 25°C  
CC  
A
The product contains two sets of D-type flip-flops for temporary  
storage of data flowing in either direction. The device can be used  
as two 8-bit transceivers or one 16-bit tranceiver. Data on the A or  
B bus is stored in the registers on the low-to-high transition of the  
clock (CLKAB or CLKBA) input provided that the clock-enable  
(CLKENABorCLKENBA)inputislow. Takingtheoutput-enable  
(OEAB or OEBA) input low accesses the data on either port.  
Typical V  
(Output V Undershoot)  
OH  
OHV  
< 2.0V atV = 3.3V, T = 25°C  
CC  
A
Bus Hold retains last active bus state during 3-State  
eliminating the need for external pullup resistors  
Industrial operation at –40°C to +85°C  
Packages available:  
– 56-pin 240 mil wide plastic TSSOP (A)  
– 56-pin 300 mil wide plastic SSOP (V)  
Toensurethehigh-impedancestateduringpoweruporpowerdown,  
OE should be tied to Vcc through a pull-up resistor; the minimum  
value of the resistor is determined by the current-sinking capability  
of the driver.  
The PI74ALVCH16952 has “Bus Hold” which retains the data  
input’s last state whenever the data input goes to high-impedance  
preventing “floating” inputs and eliminating the need for pullup/  
down resistors.  
LogicBlockDiagram  
3
54  
1CLKENAB  
1CLKENBA  
2
55  
1CLKAB  
1CLKBA  
56  
1
1OEBA  
1OEAB  
One of Eight  
Channels  
C1  
CE  
1D  
5
52  
1A1  
1B1  
C1  
CE  
1D  
To Seven Other Channels  
26  
31  
2CLKENAB  
2CLKENBA  
27  
30  
28  
2CLKAB  
2CLKBA  
2OEAB  
29  
2OEBA  
One of Eight  
Channels  
C1  
CE  
1D  
15  
42  
2A1  
2B1  
C1  
CE  
1D  
To Seven Other Channels  
PS8197A  
11/06/00  
1

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