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SN54BCT2827C_08 PDF预览

SN54BCT2827C_08

更新时间: 2024-09-08 04:31:23
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德州仪器 - TI 驱动器存储输出元件
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12页 419K
描述
10-BIT BUS/MOS MEMORY DRIVERS WITH 3-STATE OUTPUTS

SN54BCT2827C_08 数据手册

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ꢀꢁ ꢂꢃ ꢄꢅ ꢆꢇ ꢈ ꢇ ꢉ ꢅꢊ ꢋꢀꢁ ꢉ ꢃ ꢄꢅ ꢆꢇ ꢈꢇ ꢉꢅ  
ꢌ ꢍ ꢎꢄꢏ ꢆꢋ ꢄꢐꢀꢑ ꢒ ꢓꢀ ꢋꢒ ꢔꢒ ꢓꢕꢖꢋ ꢗꢕ ꢏ ꢘꢔ ꢕ ꢀ  
ꢙ ꢏꢆ ꢚꢋ ꢛ ꢎꢀꢆꢜꢆ ꢔꢋ ꢓ ꢐꢆ ꢝꢐ ꢆꢀ  
SCBS007E − APRIL 1987 − REVISED NOVEMBER 1993  
SN54BCT2827C . . . JT OR W PACKAGE  
SN74BCT2827C . . . DW OR NT PACKAGE  
(TOP VIEW)  
BiCMOS Design Substantially Reduces I  
CCZ  
Output Ports Have Equivalent 25-  
Resistors; No External Resistors Are  
Required  
OE1  
A1  
V
CC  
Y1  
1
24  
23  
Specifically Designed to Drive MOS DRAMs  
2
A2  
A3  
A4  
3
22 Y2  
21 Y3  
20 Y4  
3-State Outputs Drive Bus Lines or Buffer  
4
Memory Address Registers  
5
Flow-Through Architecture Optimizes  
6
19  
18  
17  
16  
15  
14  
13  
A5  
A6  
A7  
A8  
A9  
A10  
GND  
Y5  
Y6  
Y7  
Y8  
Y9  
Y10  
OE2  
PCB Layout  
7
Power-Up High-Impedance State  
8
ESD Protection Exceeds 2000 V Per  
9
MIL-STD-883C, Method 3015  
10  
11  
12  
Package Options Include Plastic  
Small-Outline (DW) Packages, Ceramic  
Chip Carriers (FK) and Flatpacks (W), and  
Standard Plastic and Ceramic 300-mil DIPs  
(JT, NT)  
SN54BCT2827C . . . FK PACKAGE  
(TOP VIEW)  
description  
These 10-bit buffers and bus drivers are  
specifically designed to drive the capacitive input  
characteristics of MOS DRAMs. They provide  
high-performance bus interface for wide data  
paths or buses carrying parity.  
4
3
2 1 28 27 26  
5
6
7
8
9
25  
24  
23  
22  
21  
20  
19  
A3  
A4  
A5  
NC  
A6  
A7  
A8  
Y3  
Y4  
Y5  
NC  
Y6  
Y7  
Y8  
The 3-state control gate is a 2-input AND gate with  
active-low inputs so if either output-enable (OE1  
or OE2) input is high, all ten outputs are in the  
high-impedance state. The outputs are also in the  
high-impedance state during power-up and  
power-down conditions. The outputs remain in the  
high-impedance state while the device is powered  
down.  
10  
11  
12 13 14 15 16 17 18  
NC-No internal connection  
The SN54BCT2827C is characterized for opera-  
tion over the full military temperature range of  
−55°C to 125°C. The SN74BCT2827C is  
characterized for operation from 0°C to 70°C.  
FUNCTION TABLE  
INPUTS  
OUTPUT  
Y
OE1  
L
OE2  
L
A
L
L
L
L
H
X
X
H
Z
Z
H
X
X
H
ꢆꢩ  
Copyright 1993, Texas Instruments Incorporated  
ꢥ ꢩ ꢦ ꢥꢞ ꢟꢳ ꢡꢠ ꢤ ꢬꢬ ꢪꢤ ꢢ ꢤ ꢣ ꢩ ꢥ ꢩ ꢢ ꢦ ꢮ  
ꢧꢩ  
2−1  
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  
POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443  

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