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74HC158 데이터시트 PDF




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부품번호 74HC158 기능
기능 High Speed CMOS Logic Quad 2-Input Multiplexers
제조업체 Harris
로고 Harris 로고


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74HC158 데이터시트, 핀배열, 회로
SEMICONDUCTOR
September 1997
CD74HC157, CD74HCT157,
CD74HC158, CD74HCT158
High Speed CMOS Logic
Quad 2-Input Multiplexers
Features
Description
• Common Select Inputs
• Separate Enable Inputs
• Buffered inputs and Outputs
• Fanout (Over Temperature Range)
- Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads
- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads
• Wide Operating Temperature Range . . . -55oC to 125oC
• Balanced Propagation Delay and Transition Times
• Significant Power Reduction Compared to LSTTL
Logic ICs
The Harris CD74HC157, CD74HCT157, CD74HC158 and
CD74HCT158 are quad 2-input multiplexers which select
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 in the 158, the inverting
type, (1Y-4Y) are forced High and in the 157, the non-
inverting type, all of the outputs (1Y-4Y) are forced Low,
regardless of all other input conditions.
Moving data from two groups of registers to four common
output busses is a common use of these devices. The state
of the Select input determines the particular register from
which the data comes. They can also be used as function
generators.
• HC Types
- 2V to 6V Operation
- High Noise Immunity: NIL = 30%, NIH = 30%of VCC at
VCC = 5V
• HCT Types
- 4.5V to 5.5V Operation
- Direct LSTTL Input Logic Compatibility,
VIL= 0.8V (Max), VIH = 2V (Min)
- CMOS Input Compatibility, Il 1µA at VOL, VOH
Ordering Information
PART NUMBER TEMP. RANGE (oC) PACKAGE
PKG.
NO.
CD74HC157E
-55 to 125
16 Ld PDIP E16.3
CD74HCT157E
-55 to 125
16 Ld PDIP E16.3
CD74HC158E
-55 to 125
16 Ld PDIP E16.3
CD74HCT158E
-55 to 125
16 Ld PDIP E16.3
Pinout
CD74HC157, CD74HCT157, CD74HC158, CD74HCT158
(PDIP, SOIC)
TOP VIEW
S1
1I0 2
1I1 3
1Y 4
2I0 5
2I1 6
2Y 7
GND 8
16 VCC
15 E
14 4I0
13 4I1
12 4Y
11 3I0
10 3I1
9 3Y
CD74HC157M
-55 to 125
16 Ld SOIC M16.15
CD74HCT157M
-55 to 125
16 Ld SOIC M16.15
CD74HC158M
-55 to 125
16 Ld SOIC M16.15
NOTES:
1. When ordering, use the entire part number. Add the suffix 96 to
obtain the variant in the tape and reel.
2. Wafer or die for this part number is available which meets all elec-
trical specifications. Please contact your local sales office or
Harris customer service for ordering information.
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright © Harris Corporation 1997
1
File Number 1642.2




74HC158 pdf, 반도체, 판매, 대치품
CD74HC157, CD74HCT157, CD74HC158, CD74HCT158
DC Electrical Specifications (Continued)
PARAMETER
HCT TYPES
SYMBOL
TEST
CONDITIONS
VI (V) IO (mA)
VCC
(V)
25oC
-40oC TO 85oC -55oC TO 125oC
MIN TYP MAX MIN MAX MIN MAX UNITS
High Level Input
Voltage
VIH -
-
4.5 to
2
-
-
2
-
2
-
V
5.5
Low Level Input
Voltage
VIL
-
-
4.5 to
-
- 0.8 - 0.8 -
0.8 V
5.5
High Level Output
Voltage
CMOS Loads
VOH VIH or VIL -0.02 4.5 4.4 -
- 4.4 - 4.4
-
V
High Level Output
Voltage
TTL Loads
-4
4.5 3.98 -
- 3.84 -
3.7
-
V
Low Level Output
Voltage
CMOS Loads
VOL VIH or VIL 0.02
4.5
-
- 0.1 - 0.1 -
0.1 V
Low Level Output
Voltage
TTL Loads
4
4.5 -
- 0.26 - 0.33 -
0.4 V
Input Leakage
Current
II
VCC and
0
GND
5.5 -
±0.1 - ±1 - ±1 µA
Quiescent Device
Current
ICC VCC or 0
GND
5.5 -
-8
- 80
- 160 µA
Additional Quiescent
Device Current Per
Input Pin: 1 Unit Load
ICC
VCC
-2.1
-
4.5 to
-
100 360
-
450
-
490 µA
5.5
NOTE: For dual-supply systems theoretical worst case (VI = 2.4V, VCC = 5.5V) specification is 1.8mA.
HCT Input Loading Table
UNIT LOADS
INPUT
HCT157
HCT158
I (All)
0.95 0.4
E 0.6 0.6
S 3 2.8
NOTE:
360µA
mUanxitaLto2a5doiCs.ICC
limit
specified
in
DC
Electrical
Table,
e.g.,
Switching Specifications Input tr, tf = 6ns
PARAMETER
TEST
SYMBOL CONDITIONS
VCC
(V)
25oC
-40oC TO 85oC -55oC TO 125oC
MIN TYP MAX MIN MAX MIN MAX UNITS
HC/HCT157 TYPES
Propagation Delay (Figure 1) tPLH, tPHL CL = 50pF
Data to Output
2
-
- 125
-
155
-
190 ns
4.5 - - 25 - 31 - 38 ns
HC157
HCT157
CL =15pF
5 - 10 - - - - - ns
- 12 -
-
-
-
- ns
CL = 50pF
6 - - 21 - 26 - 32 ns
4

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