IDT74FCT139T Datasheet, PDF (1/5 Pages) Integrated Device Technology – FAST CMOS DUAL 1-OF-4 DECODER WITH ENABLE

Integrated Device Technology, Inc.
FAST CMOS DUAL
1-OF-4 DECODER
WITH ENABLE
IDT54/74FCT139T/AT/CT
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.)
– 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
DESCRIPTION:
The IDT54/74FCT139T/AT/CT are dual 1-of-4 decoders
built using an advanced dual metal CMOS technology. These
devices have two independent decoders, each of which
accept two binary weighted inputs (A0-A1) and provide four
mutually exclusive active LOW outputs (O0-O3). Each de-
coder has an active LOW enable (E). When E is HIGH, all
outputs are forced HIGH.
FUNCTIONAL BLOCK DIAGRAM
Ea
A0a A1a
Eb
PIN CONFIGURATIONS
A0b A1b
Ea
1
16
VCC
A0a
2
15
Eb
P16-1
A1a
3 _D16-1 14
A0b
O0a 4 SO16-1 13
A1b
O1a
5 ^SO16-7 12
O0b
O2a
&
6 _E16-1 11
O1b
O3a
7
10
O2b
GND 8
9
O3b
DIP/SOIC/QSOP/CERPACK
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O0a O1a O2a
O3a
O0b
O1b
O2b
O3b
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INDEX
3 2 20 19
A1a
4
1
18 A0b
O0a
5
17 A1b
NC
6
L20-2 16 NC
O1a
7
15 O0b
O2a
8
14 O1b
9 10 11 12 13
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
©1995 Integrated Device Technology, Inc.
6.4
LCC
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APRIL 1995
DSC-4218/3
1