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IDT74FCT138ATP PDF预览

IDT74FCT138ATP

更新时间: 2024-11-04 22:57:23
品牌 Logo 应用领域
艾迪悌 - IDT 解码器
页数 文件大小 规格书
6页 110K
描述
FAST CMOS 1-OF-8 DECODER WITH ENABLE

IDT74FCT138ATP 数据手册

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FAST CMOS  
IDT54/74FCT138T/AT/CT  
1-OF-8 DECODER  
WITH ENABLE  
Integrated Device Technology, Inc.  
FEATURES:  
• Std., A and C speed grades  
• Low input and output leakage 1µA (max.)  
• CMOS power levels  
• True TTL input and output compatibility  
– VOH = 3.3V (typ.)  
DESCRIPTION:  
The IDT54/74FCT138T/AT/CT are 1-of-8 decoders built  
using an advanced dual metal CMOS technology. The IDT54/  
74FCT138T/AT/CT accepts three binary weighted inputs (A0,  
A1, A2) and, when enabled, provides eight mutually exclusive  
active LOW outputs (O0-O7). The IDT54/74FCT138T/AT/CT  
features three enable inputs, two active LOW (E1, E2) and one  
activeHIGH(E3).AlloutputswillbeHIGHunlessE1 andE2 are  
LOW and E3 is HIGH. This multiple enable function allows  
easy parallel expansion of the device to a 1-of-32 (5 lines to  
32 lines) decoder with just four IDT54/74FCT138T/AT/CT  
devices and one inverter.  
– VOL = 0.3V (typ.)  
• High drive outputs (-15mA IOH, 48mA IOL)  
• Meets or exceeds JEDEC standard 18 specifications  
• Product available in Radiation Tolerant and Radiation  
Enhanced versions  
• Military product compliant to MIL-STD-883, Class B  
and DESC listed (dual marked)  
• Available in DIP, SOIC, QSOP, CERPACK and  
LCC packages  
FUNCTIONAL BLOCK DIAGRAM  
PIN CONFIGURATIONS  
A2 A1  
A0  
E1 E2 E3  
A
0
1
16  
15  
14  
13  
12  
11  
10  
9
VCC  
A
1
2
2
3
4
O0  
P16-1  
D16-1  
SO16-1  
SO16-7  
&
A
O1  
O2  
O3  
E
E
E
1
2
3
5
6
7
8
O4  
O5  
O6  
E16-1  
O
7
GND  
2570 drw 02  
DIP/SOIC/QSOP/CERPACK  
TOP VIEW  
INDEX  
3
2
20 19  
1
A2  
E1  
O1  
4
5
6
7
8
18  
O7  
O6  
O5  
O4  
O3  
O2  
O1  
O0  
17  
16  
15  
14  
O2  
NC  
NC  
2570 drw 01  
L20-2  
E2  
E3  
O3  
O4  
9 10 11 12 13  
2570 drw 03  
LCC  
TOP VIEW  
The IDT logo is a registered trademark of Integrated Device Technology, Inc.  
MILITARY AND COMMERCIAL TEMPERATURE RANGES  
APRIL 1995  
1995 Integrated Device Technology, Inc.  
6.3  
DSC-4213/5  
1

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