Integrated Device Technology Inc IDT54FCT139TP, IDT54FCT139TPB, IDT54FCT139TQ, IDT54FCT139TQB, IDT54FCT139TSO Datasheet
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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)
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 (
coder has an active LOW enable (E). When E is HIGH, all
outputs are forced HIGH.
• 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
a
Ea A0a A1a
Eb A0b A1b
E
A
A
O
O
O
O
GND
1
0a
2
P16-1
3
1a
0a
1a
2a
3a
4
5
6
7
D16-1
SO16-1
SO16-7
&
E16-1
89
16
15
14
13
12
11
10
O
0-O3). Each de-
V
CC
E
b
A
0b
A
1b
O
0b
O
1b
O
2b
O
3b
DIP/SOIC/QSOP/CERPACK
2566 drw 02
TOP VIEW
O0a O1a O2a O3a
O0b O1b O2b O3b
2566 drw 01
INDEX
A1a
O0a
NC
O
O2a
A0a
3 2 20 19
4
5
6
1a
7
8
Ea
1
L20-2
NC
CC
V
Eb
18
17
16
15
14
A0b
A1b
NC
O
O1b
0b
9 10111213
NC
O3b
O3a
GND
O2b
2566 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. 6.4 DSC-4218/3
1
IDT54/74FCT139T/AT/CT
FAST CMOS DUAL 1-OF-4 DECODER WITH ENABLE
MILITARY AND COMMERCIAL TEMPERATURE RANGES
ABSOLUTE MAXIMUM RATINGS
(1)
Symbol Rating Commercial Military Unit
(2)
VTERM
Terminal Voltage
–0.5 to +7.0 –0.5 to +7.0 V
with Respect to
GND
(3)
VTERM
TA Operating
Terminal Voltage
with Respect to
GND
–0.5 to
CC +0.5
V
–0.5 to
VCC +0.5
0 to +70 –55 to +125 °C
V
Temperature
TBIAS Temperature
–55 to +125 –65 to +135 °C
Under Bias
TSTG Storage
–55 to +125 –65 to +150 °C
Temperature
PT Power Dissipation 0.5 0.5 W
IOUT DC Output
–60 to +120 –60 to +120 mA
Current
NOTES:
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating
only and functional operation of the device at these or any other conditions
above those indicated in the operational sections of this specification is
not implied. Exposure to absolute maximum rating conditions for
extended periods may affect reliability. No terminal voltage may exceed
V
CC by +0.5V unless otherwise noted.
2. Input and V
3. Outputs and I/O terminals only.
CC terminals only.
2566 lnk 03
PIN DESCRIPTION
Pin Names Description
A0, A1 Address Inputs
E
O
0 - O3 Outputs (Active LOW)
FUNCTION TABLE
Enable Input (Active LOW)
2566 tbl 01
(1)
Inputs Outputs
E
E
A0 A1
O
0
O
O
1
O
O
2
O
O
3
O
HXX H H H H
LLLL HHH
LHL H L H H
LLHHH L H
LHHH H H L
NOTE: 2566 tbl 02
1. H = HIGH Voltage Level; L = LOW Voltage Level; X = Don’t Care
CAPACITANCE (TA = +25°C, f = 1.0MHz)
Symbol Parameter
CIN Input
Capacitance
COUT Output
Capacitance
NOTE:
1. This parameter is measured at characterization but not tested.
(1)
Conditions Typ. Max. Unit
VIN = 0V 6 10 pF
VOUT = 0V 8 12 pF
2566 lnk 04
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Commercial: TA = 0°C to +70°C, VCC = 5.0V ± 5%; Military: TA = –55°C to +125°C, VCC = 5.0V ± 10%
Symbol Parameter Test Conditions
(1)
Min. Typ.
VIH Input HIGH Level Guaranteed Logic HIGH Level 2.0 — — V
VIL Input LOW Level Guaranteed Logic LOW Level — — 0.8 V
(4)
(4)
(4)
VCC = Max. VI = 2.7V — — ±1 µA
VCC = Max. VI = 0.5V — — ±1 µA
VCC = Max., VI = VCC (Max.) — — ±1 µA
II H Input HIGH Current
II L Input LOW Current
II Input HIGH Current
VIK Clamp Diode Voltage VCC = Min., IN = –18mA — –0.7 –1.2 V
IOS Short Circuit Current VCC = Max.
VOH Output HIGH Voltage VCC = Min.
V
IN = VIH or VIL
VOL Output LOW Voltage VCC = Min.
V
IN = VIH or VIL
(3)
, VO = GND –60 –120 –225 mA
IOH = –6mA MIL.
I
OH = –8mA COM'L.
IOH = –12mA MIL.
I
OH = –15mA COM'L.
IOL = 32mA MIL.
I
OL = 48mA COM'L.
2.4 3.3 — V
2.0 3.0 — V
— 0.3 0.5 V
VH Input Hysteresis — — 200 — mV
ICC Quiescent Power Supply Current VCC = Max.
V
IN = GND or VCC
NOTES: 2566 tbl 05
1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at V
3. Not more than one output should be shorted at one time. Duration of the short circuit test should not exceed one second.
4. The test limit for this parameter is ±5µA at T
CC = 5.0V, +25°C ambient and maximum loading.
A = –55°C.
— 0.01 1 mA
(2)
Max. Unit
6.4 2
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