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IDT74FCT138. 74FCT138 Datasheet

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IDT74FCT138. 74FCT138 Datasheet






74FCT138 IDT74FCT138. Datasheet pdf. Equivalent




74FCT138 IDT74FCT138. Datasheet pdf. Equivalent





Part

74FCT138

Description

IDT74FCT138



Feature


® www.DataSheet4U.com FAST CMOS 1-OF-8 DECODER WITH ENABLE DESCRIPTION: IDT5 4/74FCT138 IDT54/74FCT138A IDT54/74FCT1 38C Integrated Device Technology, Inc. FEATURES: • • • • • • • • • • • • • IDT54/74FCT138 equivalent to FAST™ speed IDT54/74FC T138A 35% faster than FAST IDT54/74FCT1 38C 40% faster than FAST Equivalent to FAST speeds output drive over full temperature .
Manufacture

IDT

Datasheet
Download 74FCT138 Datasheet


IDT 74FCT138

74FCT138; and voltage supply extremes IOL = 48mA ( commercial) and 32mA (military) CMOS po wer levels (1mW typ. static) TTL input and output level compatible CMOS output level compatible Substantially lower i nput current levels than FAST (5µA max .) JEDEC standard pinout for DIP and LC C Product available in Radiation Tolera nt and Radiation Enhanced versions Mili tary product compli.


IDT 74FCT138

ant to MIL-STD-883, Class B Standard Mil itary Drawing # 5962-87654 is listed on this function. Refer to section 2. Th e IDT54/74FCT138/A/C are 1-of-8 decoder s built using an advanced dual metal CM OS technology. The IDT54/ 74FCT138/A/C accept three binary weighted inputs (A0 , A1, A2) and, when enabled, provide ei ght mutually exclusive active LOW outpu ts (O 0 - O 7). Th.


IDT 74FCT138

e IDT54/74FCT138/A/C feature three enabl e inputs, two active LOW (E 1, E 2) and one active HIGH (E3). All outputs will be HIGH unless E 1 and E 2 are LOW and E3 is HIGH. This multiple enable funct ion allows easy parallel expansion of t he device to a 1-of-32 (5 lines to 32 l ines) decoder with just four IDT54/74FC T138/A/C devices and one inverter. FUN CTIONAL BLOCK DIAG.

Part

74FCT138

Description

IDT74FCT138



Feature


® www.DataSheet4U.com FAST CMOS 1-OF-8 DECODER WITH ENABLE DESCRIPTION: IDT5 4/74FCT138 IDT54/74FCT138A IDT54/74FCT1 38C Integrated Device Technology, Inc. FEATURES: • • • • • • • • • • • • • IDT54/74FCT138 equivalent to FAST™ speed IDT54/74FC T138A 35% faster than FAST IDT54/74FCT1 38C 40% faster than FAST Equivalent to FAST speeds output drive over full temperature .
Manufacture

IDT

Datasheet
Download 74FCT138 Datasheet




 74FCT138
www.DataSheet4U.com
®
Integrated Device Technology, Inc.
FAST CMOS
1-OF-8 DECODER
WITH ENABLE
IDT54/74FCT138
IDT54/74FCT138A
IDT54/74FCT138C
FEATURES:
• IDT54/74FCT138 equivalent to FASTspeed
IDT54/74FCT138A 35% faster than FAST
IDT54/74FCT138C 40% faster than FAST
• Equivalent to FAST speeds output drive over full tem-
perature 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
• Standard Military Drawing # 5962-87654 is listed on this
function. Refer to section 2.
DESCRIPTION:
The IDT54/74FCT138/A/C are 1-of-8 decoders built using
an advanced dual metal CMOS technology. The IDT54/
74FCT138/A/C accept three binary weighted inputs (A0, A1,
A2) and, when enabled, provide eight mutually exclusive
active LOW outputs (O 0 - O 7). The IDT54/74FCT138/A/C
feature three enable inputs, two active LOW (E 1, E 2) and one
active HIGH (E3). All outputs will be HIGH unless E 1 and E 2
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 IDT54/74FCT138/A/C devices
and one inverter.
FUNCTIONAL BLOCK DIAGRAM
A2 A1
A0
E1 E2 E3
PIN CONFIGURATIONS
A0
A1
A2
E1
E2
E3
O7
GND
1 16
2 15
3 P16-1, 14
4
D16-1,
SO16-1
13
5 & 12
6 E16-1 11
7 10
89
Vcc
O0
O1
O2
O3
O4
O5
O6
DIP/SOIC/CERPACK
TOP VIEW
O7 O6 O5 O4 O3 O2 O1 O0
2581 drw 02
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.
7.3
INDEX
3 2 20 19
A2 4
1 18 O1
E1 5
17 O2
NC 6 L20-2 16 NC
E2 7
15 O3
E3 8
14 O4
9 10 11 12 13
2581 drw 01
LCC
TOP VIEW
MAY 1992
DSC-4625/3
1




 74FCT138
IDT54/74FCT138/A/C
FAST CMOS 1-OF-8 DECODER-WITH ENABLE
MILITARY AND COMMERCIAL TEMPERATURE RANGES
wwwP.DINataDShEeeSt4CU.RcoImPTION
Pin Names
Description
A0–A2
Address Inputs
E 1, E 2
Enable Inputs (Active LOW)
E3 Enable Input (Active HIGH)
O 0O 7
Outputs (Active LOW)
2581 tbl 05
FUNCTION TABLE
Inputs
E 1 E 2 E3 A0 A1 A2 O 0 O 1 O2
H X X XX XH H H
X H X XX XH H H
X X L XX XH H H
L L H LL LL HH
L L H HL LH L H
L L H LH LH H L
L L H HH LH H H
L L H L L HH H H
L L H HL HH H H
L L H LH HH H H
L L H HH HH H H
Outputs
O3 O4 O5 O6 O7
HHHHH
HHHHH
HHHHH
HHHHH
HHHHH
HHHHH
L HHHH
H L HHH
HHL HH
HHH LH
HHHH L
2581 tbl 06
ABSOLUTE MAXIMUM RATINGS(1)
Symbol
Rating
VTERM(2) Terminal Voltage
with Respect
to GND
VTERM(3) Terminal Voltage
with Respect
to GND
Commercial Military Unit
–0.5 to +7.0 –0.5 to +7.0 V
–0.5 to VCC –0.5 to VCC V
TA Operating
Temperature
0 to +70 –55 to +125 °C
TBIAS
Temperature
Under Bias
–55 to +125 –65 to +135 °C
TSTG
Storage
Temperature
–55 to +125 –65 to +150 °C
PT
Power Dissipation
0.5
0.5 W
IOUT
DC Output Current
120
120 mA
NOTES:
2581 tbl 01
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 VCC by +0.5V unless otherwise noted.
2. Inputs and VCC terminals only.
3. Outputs and I/O terminals only.
CAPACITANCE (TA = +25°C, f = 1.0MHz)
Symbol Parameter(1) Conditions Typ. Max. Unit
CIN Input Capacitance VIN = 0V 6 10 pF
COUT Output Capacitance VOUT = 0V 8 12 pF
NOTE:
2581 tbl 02
1. This parameter is guaranteed characterization data and not tested.
7.3 2




 74FCT138
IDT54/74FCT138/A/C
FAST CMOS 1-OF-8 DECODER-WITH ENABLE
MILITARY AND COMMERCIAL TEMPERATURE RANGES
wwwD.DCataESLheEetC4UT.cRomICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified: VLC = 0.2V; VHC = VCC – 0.2V
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.(2)
VIH Input HIGH Level
Guaranteed Logic HIGH Level
2.0 —
VIL Input LOW Level
Guaranteed Logic LOW Level
——
IIH Input HIGH Current VCC = Max.
VI = VCC
——
VI= 2.7V
——
IIL Input LOW Current
VI= 0.5V
——
VI = GND
——
VIK
Clamp Diode Voltage
VCC = Min., IN = –18mA
IOS
Short Circuit Current
VCC = Max.(3), VO = GND
— –0.7
–60 –120
VOH
Output HIGH Voltage
VCC = 3V, VIN = VLC or VHC, IOH = –32µA
VHC
VCC
VCC = Min.
IOH = –300µA
VHC
VCC
VIN = VIH or VIL
IOH = –12mA MIL.
2.4 4.3
IOH = –15mA COM’L. 2.4
4.3
VOL Output LOW Voltage VCC = 3V, VIN = VLC or VHC, IOL = 300µA
— GND
VCC = Min.
IOL = 300µA
— GND
VIN = VIH or VIL
IOL = 32mA MIL.
— 0.3
IOL = 48mA COM’L. — 0.3
Max.
0.8
5
5(4)
–5(4)
–5
–1.2
VLC
VLC(4)
0.5
0.5
Unit
V
V
µA
V
mA
V
V
NOTES:
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 VCC = 5.0V, +25°C ambient and maximum loading.
3. Not more than one output should be shorted at one time. Duration of the short circuit test should not exceed one second.
4. This parameter is guaranteed but not tested.
2581 tbl 03
POWER SUPPLY CHARACTERISTICS
VLC = 0.2V; VHC = VCC – 0.2V
Symbol
Parameter
Test Conditions(1)
ICC Quiescent Power Supply Current Vcc = Max.
VIN VHC; VIN VLC
ICC
ICCD
IC
Quiescent Power Supply Current
TTL Inputs HIGH
Dynamic Power Supply Current(4)
Total Power Supply Current(5)
Vcc = Max.
VIN = 3.4V(3)
Vcc = Max.
Outputs Open
One Output Toggling
50% Duty Cycle
Vcc = Max.
Outputs Open
Toggle E 1, E 2 or E3
VIN VHC
VIN VLC
VIN VHC
VIN VLC
(FCT)
50% Duty Cycle
fO = 10MHz
One Output Toggling
VIN = 3.4V
VIN = GND
Min.
Typ.(2)
0.2
— 0.5
— 0.15
— 1.7
— 2.0
Max.
1.5
2.0
0.3
4.5
5.5
NOTES:
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 VCC = 5.0V, +25°C ambient.
3. Per TTL driven input (VIN = 3.4V); all other inputs at VCC or GND.
4. This parameter is not directly testable, but is derived for use in Total Power Supply calculations.
5. IC = IQUIESCENT + IINPUTS + IDYNAMIC
IC = ICC + ICC DHNT + ICCD (fCP/2 + fONO)
ICC = Quiescent Current
ICC = Power Supply Current for a TTL High Input (VIN = 3.4V)
DH = Duty Cycle for TTL Inputs High
NT = Number of TTL Inputs at DH
ICCD = Dynamic Current Caused by an Output Transition Pair (HLH or LHL)
fCP = Clock Frequency for Register Devices (Zero for Non-Register Devices)
fO = Output Frequency
NO = Number of Outputs at fO
All currents are in milliamps and all frequencies are in megahertz.
Unit
mA
mA
mA/MHz
mA
2581 tbl 04
7.3 3






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