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PDF 74ACT138PC Data sheet ( Hoja de datos )
| Número de pieza | 74ACT138PC | |
| Descripción | 1-of-8 Decoder/Demultiplexer | |
| Fabricantes | Fairchild Semiconductor | |
| Logotipo |  |
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November 1988
Revised July 2003
74AC138 • 74ACT138
1-of-8 Decoder/Demultiplexer
General Description
The AC/ACT138 is a high-speed 1-of-8 decoder/demulti-
plexer. This device is ideally suited for high-speed bipolar
memory chip select address decoding. The multiple input
enables allow parallel expansion to a 1-of-24 decoder
using just three AC/ACT138 devices or a 1-of-32 decoder
using four AC/ACT138 devices and one inverter.
Features
s ICC reduced by 50%
s Demultiplexing capability
s Multiple input enable for easy expansion
s Active LOW mutually exclusive outputs
s Outputs source/sink 24 mA
s ACT138 has TTL-compatible inputs
Ordering Code:
Order Number Package Number
Package Description
74AC138SC
M16A
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
74AC138SJ
M16D
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74AC138MTC
MTC16
16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
74AC138PC
N16E
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide
74ACT138SC
M16A
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
74ACT138SJ
M16D
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74ACT138PC
N16E
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Connection Diagram
Logic Symbols
Pin Descriptions
Pin Names
A0–A2
E1–E2
E3
O0–O7
Description
Address Inputs
Enable Inputs
Enable Input
Outputs
FACT is a trademark of Fairchild Semiconductor Corporation.
© 2003 Fairchild Semiconductor Corporation DS009925
IEEE/IEC
www.fairchildsemi.com
1 page  
AC Electrical Characteristics for ACT
Symbol
Parameter
tPLH Propagation Delay
An to On
tPHL Propagation Delay
An to On
tPLH Propagation Delay
E1 or E2 to On
tPHL Propagation Delay
E1 or E2 to On
tPLH Propagation Delay
E3 to On
tPHL Propagation Delay
E3 to On
Note 8: Voltage Range 5.0 is 5.0V ± 0.5V
VCC
(V)
(Note 8)
5.0
5.0
5.0
5.0
5.0
5.0
Min
1.5
1.5
2.5
2.0
2.5
2.0
Capacitance
Symbol
CIN
CPD
Parameter
Input Capacitance
Power Dissipation Capacitance
Typ
4.5
60.0
TA = +25°C
CL = 50 pF
Typ
7.0
6.5
Max
10.5
10.5
8.0 11.5
7.5 11.5
8.0 12.0
6.5 10.5
TA = −40°C to +85°C
CL = 50 pF
Min Max
1.5 11.5
1.5 11.5
2.0 12.5
2.0 12.5
2.0 13.0
1.5 11.5
Units
pF
pF
VCC = OPEN
VCC = 5.0V
Conditions
Units
ns
ns
ns
ns
ns
ns
5 www.fairchildsemi.com
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| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet 74ACT138PC.PDF ] | |
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