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SN74ALVCH16952_08

更新时间: 2024-11-19 02:58:39
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描述
16-BIT REGISTERED TRANSCEIVER WITH 3-STATE OUTPUTS

SN74ALVCH16952_08 数据手册

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SN74ALVCH16952  
16-BIT REGISTERED TRANSCEIVER  
WITH 3-STATE OUTPUTS  
www.ti.com  
SCES011EJULY 1995REVISED SEPTEMBER 2004  
FEATURES  
DGG, DGV, OR DL PACKAGE  
(TOP VIEW)  
Member of the Texas Instruments Widebus™  
Family  
1
56  
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EPIC™ (Enhanced-Performance Implanted  
CMOS) Submicron Process  
1OEAB  
1CLKAB  
1CLKENAB  
GND  
1OEBA  
1CLKBA  
1CLKENBA  
GND  
2
3
ESD Protection Exceeds 2000 V Per  
4
MIL-STD-883, Method 3015; Exceeds 200 V  
Using Machine Model (C = 200 pF, R = 0)  
5
1A1  
1B1  
6
1A2  
1B2  
Latch-Up Performance Exceeds 500 mA Per  
JESD 17  
7
V
CC  
V
CC  
8
1A3  
1A4  
1A5  
GND  
1A6  
1A7  
1A8  
2A1  
2A2  
2A3  
GND  
2A4  
2A5  
2A6  
1B3  
1B4  
1B5  
GND  
1B6  
1B7  
1B8  
2B1  
2B2  
2B3  
GND  
2B4  
2B5  
2B6  
Bus Hold on Data Inputs Eliminates the Need  
for External Pullup/Pulldown Resistors  
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Package Options Include Plastic 300-mil  
Shrink Small-Outline (DL), Thin Shrink  
Small-Outline (DGG), and Thin Very  
Small-Outline (DGV) Packages  
DESCRIPTION  
This 16-bit registered transceiver is designed for  
1.65-V to 3.6-V VCC operation.  
The SN74ALVCH16952 contains two sets of D-type  
flip-flops for temporary storage of data flowing in  
either direction. This device can be used as two 8-bit  
transceivers or one 16-bit transceiver. 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 (CLKENAB or  
CLKENBA) input is low. Taking the output-enable  
(OEAB or OEBA) input low accesses the data on  
either port.  
V
CC  
V
CC  
2A7  
2A8  
2B7  
2B8  
GND  
GND  
2CLKENAB  
2CLKAB  
2OEAB  
2CLKENBA  
2CLKBA  
2OEBA  
To ensure the high-impedance state during power up  
or power down, OE should be tied to VCC through a  
pullup resistor; the minimum value 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 valid logic level.  
The SN74ALVCH16952 is characterized for operation from -40°C to 85°C.  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
Widebus, EPIC are trademarks of Texas Instruments.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 1995–2004, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  

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