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74ACT158 PDF даташит

Спецификация 74ACT158 изготовлена ​​​​«STMicroelectronics» и имеет функцию, называемую «QUAD 2 CHANNEL MULTIPLEXER INV.».

Детали детали

Номер произв 74ACT158
Описание QUAD 2 CHANNEL MULTIPLEXER INV.
Производители STMicroelectronics
логотип STMicroelectronics логотип 

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74ACT158 Даташит, Описание, Даташиты
November 1988
Revised November 1999
74AC157 74ACT157
Quad 2-Input Multiplexer
General Description
The AC/ACT157 is a high-speed quad 2-input multiplexer.
Four bits of data from two sources can be selected using
the common Select and Enable inputs. The four outputs
present the selected data in the true (noninverted) form.
The AC/ACT157 can also be used as a function generator.
Features
s ICC and IOZ reduced by 50%
s Outputs source/sink 24 mA
s ACT157 has TTL-compatible inputs
Ordering Code:
Order Number Package Number
Package Description
74AC157SC
M16A
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150Narrow Body
74AC157SJ
M16D
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74AC157MTC
MTC16
16 -Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
74AC157PC
N16E
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300Wide
74ACT157SC
M16A
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150Narrow Body
74ACT157SJ
M16D
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74ACT157MTC
MTC16
16 -Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
74ACT157PC
N16E
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300Wide
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Logic Symbols
Connection Diagram
IEEE/IEC
Pin Descriptions
Pin Names
I0aI0d
I1aI1d
E
S
ZaZd
Description
Source 0 Data Inputs
Source 1 Data Inputs
Enable Input
Select Input
Outputs
FACTis a trademark of Fairchild Semiconductor Corporation.
© 1999 Fairchild Semiconductor Corporation DS009929
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74ACT158 Даташит, Описание, Даташиты
Functional Description
The AC/ACT157 is a quad 2-input multiplexer. It selects
four bits of data from two sources under the control of a
common Select input (S). The Enable input (E) is active-
LOW. When E is HIGH, all of the outputs (Z) are forced
LOW regardless of all other inputs. The AC/ACT157 is the
logic implementation of a 4-pole, 2-position switch where
the position of the switch is determined by the logic levels
supplied to the Select input. The logic equations for the
outputs are shown below:
Za = E (I1a S + I0a S)
Zb = E (I1b S + I0b S)
Zc = E (I1c S + I0c S)
Zd = E (I1d S + I0d S)
A common use of the AC/ACT157 is the moving of data
from two groups of registers to four common output bus-
ses. The particular register from which the data comes is
determined by the state of the Select input. A less obvious
use is as a function generator. The AC/ACT157 can gener-
ate any four of the sixteen different functions of two vari-
ables with one variable common. This is useful for
implementing gating functions.
Truth Table
Inputs
ES
HX
LH
LH
LL
LL
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
I0
X
X
X
L
H
Logic Diagram
Outputs
I1 Z
XL
LL
HH
XL
XH
Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays.
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74ACT158 Даташит, Описание, Даташиты
Absolute Maximum Ratings(Note 1)
Supply Voltage (VCC)
DC Input Diode Current (IIK)
VI = −0.5V
VI = VCC + 0.5V
DC Input Voltage (VI)
DC Output Diode Current (IOK)
VO = −0.5V
VO = VCC + 0.5V
DC Output Voltage (VO)
DC Output Source
or Sink Current (IO)
DC VCC or Ground Current
per Output Pin (ICC or IGND)
Storage Temperature (TSTG)
Junction Temperature (TJ)
PDIP
0.5V to +7.0V
20 mA
+20 mA
0.5V to VCC + 0.5V
20 mA
+20 mA
0.5V to VCC + 0.5V
±50 mA
±50 mA
65°C to +150°C
140°C
Recommended Operating
Conditions
Supply Voltage (VCC)
AC
2.0V to 6.0V
ACT 4.5V to 5.5V
Input Voltage (VI)
Output Voltage (VO)
Operating Temperature (TA)
Minimum Input Edge Rate (V/t)
0V to VCC
0V to VCC
40°C to +85°C
AC Devices
VIN from 30% to 70% of VCC
VCC @ 3.3V, 4.5V, 5.5V
Minimum Input Edge Rate (V/t)
125 mV/ns
ACT Devices
VIN from 0.8V to 2.0V
VCC @ 4.5V, 5.5V
125 mV/ns
Note 1: Absolute maximum ratings are those values beyond which damage
to the device may occur. The databook specifications should be met, with-
out exception, to ensure that the system design is reliable over its power
supply, temperature, and output/input loading variables. Fairchild does not
recommend operation of FACTcircuits outside databook specifications.
DC Electrical Characteristics for AC
Symbol
Parameter
VIH Minimum HIGH Level
Input Voltage
VIL Maximum LOW Level
Input Voltage
VOH Minimum HIGH Level
Output Voltage
VCC
TA = +25°C
TA = −40°C to +85°C
(V) Typ
Guaranteed Limits
3.0 1.5 2.1
2.1
4.5
2.25
3.15
3.15
5.5
2.75
3.85
3.85
3.0 1.5 0.9
0.9
4.5
2.25
1.35
1.35
5.5
2.75
1.65
1.65
3.0 2.99 2.9
2.9
4.5 4.49 4.4
4.4
5.5 5.49 5.4
5.4
VOL Maximum LOW Level
Output Voltage
3.0 2.56
4.5 3.86
5.5 4.86
3.0 0.002 0.1
4.5 0.001 0.1
5.5 0.001 0.1
2.46
3.76
4.76
0.1
0.1
0.1
3.0
0.36
0.44
4.5
0.36
0.44
5.5
0.36
0.44
IIN
(Note 4)
Maximum Input
Leakage Current
5.5 ±0.1 ±1.0
IOLD
IOHD
ICC
(Note 4)
Minimum Dynamic
Output Current (Note 3)
Maximum Quiescent
Supply Current
5.5
5.5
5.5
75
75
4.0 40.0
Note 2: All outputs loaded; thresholds on input associated with output under test.
Note 3: Maximum test duration 2.0 ms, one output loaded at a time.
Note 4: IIN and ICC @ 3.0V are guaranteed to be less than or equal to the respective limit @ 5.5V VCC.
Units
Conditions
VOUT = 0.1V
V or VCC 0.1V
VOUT = 0.1V
V or VCC 0.1V
V IOUT = −50 µA
VIN = VIL or VIH
IOH = −12 mA
V IOH = −24 mA
IOH = −24 mA (Note 2)
V IOUT = 50 µA
VIN = VIL or VIH
IOL = 12 mA
V IOL = 24 mA
IOL = 24 mA (Note 2)
µA VI = VCC, GND
mA VOLD = 1.65V Max
mA VOHD = 3.85V Min
µA VIN = VCC
or GND
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