IDT74FCT139 Datasheet, PDF (1/6 Pages) Integrated Device Technology – FAST CMOS DUAL 1-OF-4 DECODER WITH ENABLE

IDT54/74FCT139/A/C
FAST CMOS DUAL 1-0F-4_®DECODER WITH ENABLE
FAST CMOS DUAL
1-OF-4 DECODER
Integrated Device Technology, Inc.
WITH ENABLE
MILITARY AND COMMERCIAL TEMPERATURE RANGES
IDT54/74FCT139
IDT54/74FCT139A
IDT54/74FCT139C
FEATURES:
• IDT54/74FCT139 equivalent to FAST™ speed
• IDT54/74FCT139A 35% faster than FAST
• IDT54/74FCT139C 45% faster than FAST
• Equivalent to FAST output drive over full temperature
and voltage supply extremes
• IOL = 48mA (commercial) and 32mA (military)
• CMOS power levels (1mW typ. static)
• TTL input and output level compatible
• CMOS output level compatible
• Substantially lower input current levels than FAST
(5µA max.)
• JEDEC standard pinout for DIP and LCC
• Product available in Radiation Tolerant and Radiation
Enhanced versions
• Military product compliant to MIL-STD-883, Class B
DESCRIPTION:
The IDT54/74FCT139/A/C 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
P16-1
Eb
A1a
3 _D16-1 14
A0b
O0a 4 SO16-1 13
A1b
O1a
5
& ₁₂
O0b
O2a
6 ^E16-1 11
O1b
O3a
7
10
O2b
GND 8
9
O3b
DIP/SOIC/CERPACK
TOP VIEW
2605 cnv* 01
O0a O1a O2a
O3a O0b O1b O2b
O3b
2605 cnv* 03
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.
FAST is a trademark of National Semiconductor Co.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
©1992 Integrated Device Technology, Inc.
7.4
7.4
LCC
TOP VIEW
2605 cnv* 02
MAY 1992
DSC 4613/3
11