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SN74ALVCH16821

更新时间： 2024-09-15 23:09:43
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德州仪器 - TI 触发器输出元件
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10页 136K
描述
3.3-V 20-BIT BUS-INTERFACE FLIP-FLOP WITH 3-STATE OUTPUTS

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SN74ALVCH16821 数据手册

 浏览型号SN74ALVCH16821的Datasheet PDF文件第2页浏览型号SN74ALVCH16821的Datasheet PDF文件第3页浏览型号SN74ALVCH16821的Datasheet PDF文件第4页浏览型号SN74ALVCH16821的Datasheet PDF文件第5页浏览型号SN74ALVCH16821的Datasheet PDF文件第6页浏览型号SN74ALVCH16821的Datasheet PDF文件第7页 
SN74ALVCH16821  
3.3-V 20-BIT BUS-INTERFACE FLIP-FLOP  
WITH 3-STATE OUTPUTS  
SCES037C – JULY 1995 – REVISED FEBRUARY 1999  
DGG OR DL PACKAGE  
(TOP VIEW)  
Member of the Texas Instruments  
Widebus Family  
EPIC (Enhanced-Performance Implanted  
CMOS) Submicron Process  
1OE  
1Q1  
1Q2  
GND  
1Q3  
1Q4  
1CLK  
1D1  
1D2  
GND  
1D3  
1D4  
1
56  
55  
54  
53  
52  
51  
50  
49  
48  
47  
46  
45  
44  
43  
42  
41  
40  
39  
38  
37  
36  
35  
34  
33  
32  
31  
30  
29  
2
ESD Protection Exceeds 2000 V Per  
MIL-STD-883, Method 3015; Exceeds 200 V  
Using Machine Model (C = 200 pF, R = 0)  
3
4
5
Latch-Up Performance Exceeds 250 mA Per  
JESD 17  
6
V
V
7
CC  
CC  
1Q5  
1Q6  
1Q7  
GND  
1Q8  
1Q9  
1Q10  
2Q1  
2Q2  
2Q3  
GND  
2Q4  
2Q5  
2Q6  
1D5  
1D6  
1D7  
GND  
1D8  
1D9  
1D10  
2D1  
2D2  
2D3  
GND  
2D4  
2D5  
2D6  
8
Bus Hold on Data Inputs Eliminates the  
Need for External Pullup/Pulldown  
Resistors  
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
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27  
28  
Package Options Include Plastic 300-mil  
Shrink Small-Outline (DL) and Thin Shrink  
Small-Outline (DGG) Packages  
description  
This 20-bit bus-interface flip-flop is designed for  
1.65-V to 3.6-V V operation.  
CC  
TheSN74ALVCH16821 can be used as two 10-bit  
flip-flops or one 20-bit flip-flop. The 20 flip-flops  
are edge-triggered D-type flip-flops. On the  
positive transition of the clock (CLK) input, the  
device provides true data at the Q outputs.  
V
V
CC  
CC  
2Q7  
2Q8  
GND  
2Q9  
2Q10  
2OE  
2D7  
2D8  
GND  
2D9  
2D10  
2CLK  
A buffered output-enable (OE) input can be used  
to place the ten outputs in either a normal logic  
state (high or low logic levels) or the  
high-impedance state. In the high-impedance  
state, the outputs neither load nor drive the bus  
lines significantly. The high-impedance state and  
increased drive provide the capability to drive bus  
lines without need for interface or pullup  
components.  
OE does not affect the internal operation of the flip-flops. Old data can be retained or new data can be entered  
while the outputs are in the high-impedance state.  
To ensure the high-impedance state during power up or power down, OE should be tied to V through a pullup  
CC  
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 SN74ALVCH16821 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.  
EPIC and Widebus are trademarks of Texas Instruments Incorporated.  
Copyright 1999, Texas Instruments Incorporated  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of Texas Instruments  
standard warranty. Production processing does not necessarily include  
testing of all parameters.  
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...10

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SN74ALVCH16821 替代型号

型号 品牌 替代类型 描述 数据表
SN74ALVC16821 TI

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