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CY74FCT573T

更新时间： 2024-11-21 05:18:59
品牌 Logo 应用领域
德州仪器 - TI 锁存器
页数 文件大小 规格书
8页 83K
描述
8-Bit Latches

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中文翻译

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CY74FCT573T 数据手册

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Data sheet acquired from Cypress Semiconductor Corporation.  
Data sheet modified to remove devices not offered.  
CY54/74FCT373T  
CY54/74FCT573T  
SCCS021 - May 1994 - Revised February 2000  
8-Bit Latches  
Features  
Functional Description  
• Function and pinout compatible with FCT, and F logic  
• FCT-C speed at 4.2 ns max. (Com’l),  
FCT-A speed at 5.2 ns max. (Com’l)  
• Reduced VOH (typically = 3.3V) versions of equivalent  
FCT functions  
• Edge-rate control circuitry for significantly improved  
noise characteristics  
• Power-off disable feature  
• ESD > 2000V  
• Matched rise and fall times  
• Extended commercial range of −40˚C to +85˚C  
• Fully compatible with TTL input and output logic levels  
The FCT373T and FCT573T consist of eight latches with  
three-state outputs for bus organized applications. When latch  
enable (LE) is HIGH, the flip-flops appear transparent to the  
data. Data that meets the required set-up times are latched  
when LE transitions from HIGH to LOW. Data appears on the  
bus when the (OE) is LOW. When output enable is HIGH, the  
bus output is in the impedance state. In this mode, data may  
be entered into the latches. The FCT573T is identical to the  
FCT373T except for the flow-through pinout, which simplifies  
board design.  
The outputs are designed with a power-off disable feature to  
allow for live insertion of boards.  
• Sink current  
64 mA (Com’l), 32 mA (Mil)  
Source current 32 mA (Com’l), 12 mA (Mil)  
Logic Block Diagram  
D
0
D
1
D
2
D
3
D
4
D
5
D
6
D
7
LE  
CP  
D
Q
CP  
D
Q
CP  
D
Q
CP  
D
Q
CP  
D
Q
CP  
D
Q
CP  
D
Q
CP  
D
Q
OE  
O
0
O
1
O
2
O
3
O
4
O
5
O
6
O
7
Pin Configurations  
DIP/SOIC/QSOP  
Top View  
DIP/SOIC/QSOP  
Top View  
OE  
1
2
3
4
5
6
7
8
9
10  
V
OE  
20  
19  
18  
17  
CC  
1
2
3
4
5
6
7
8
9
10  
V
20  
19  
18  
17  
CC  
D
0
O
0
O
0
O
7
D
1
O
1
D
0
D
7
D
2
O
2
D
1
D
6
FCT573T  
D
3
FCT373T  
O
3
16  
O
1
O
6
16  
D
4
O
4
15  
14  
13  
12  
11  
O
2
O
5
15  
14  
13  
12  
11  
D
5
O
5
D
2
D
5
D
6
O
6
D
3
D
4
D
7
O
7
O
3
O
4
GND  
LE  
GND  
LE  
Logic Symbol  
D
0
D
1
D
2
D
3
D
4
D
5
D
6
D
7
LE  
OE  
O
0
O
1
O
2
O
3
O
4
O
5
O
6
O
7
Copyright © 2000, Texas Instruments Incorporated  
12345678

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