MC74AC350 [MOTOROLA]
4-BIT SHIFTER WITH 3-STATE OUTPUTS; 4位转换器与3态输出
| 型号： | MC74AC350 |
| 厂家： | 
MOTOROLA |
| 描述： | 4-BIT SHIFTER WITH 3-STATE OUTPUTS |
| 文件： | 总9页 (文件大小：220K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
4-BIT SHIFTER
WITH 3-STATE
OUTPUTS
The MC74AC350/74ACT350 is a specialized multiplexer that accepts a 4-bit
word and shifts it 0, 1, 2 or 3 places, as determined by two Select (S , S ) inputs.
0
1
For expansion to longer words, three linking inputs are provided for lower-order
bits; thus two packages can shift an 8-bit word, four packages a 16-bit word, etc.
Shifting by more than three places is accomplished by paralleling the 3-state outputs
of different packages and using the Output Enable (OE) inputs as a third Select
level. With appropriate interconnections, the ′AC/ACT350 can perform zero-backfill,
sign-extend or end-around (barrel) shift functions.
• Linking Inputs for Word Expansion
• 3-State Outputs for Extending Shift Range
N SUFFIX
CASE 648-08
PLASTIC
V
O
O
OE
13
O
O
S
S
1
CC
16
0
1
2
3
0
15
14
12
11
10
9
D SUFFIX
CASE 751B-05
PLASTIC
1
2
3
4
5
6
7
8
I
I
I
I
I
I
I
3
GND
–3
–2
–1
0
1
2
LOGIC SYMBOL
TRUTH TABLE
Inputs
1
2
3
4
5
6
7
Outputs
OE
S
1
S
0
O
O
O
O
3
0
1
2
H
L
L
L
L
X
L
L
H
H
X
Z
Z
Z
Z
I
I
I
I
I
I
I
3
–3 –2 –1
0
1
2
10
9
S
S
0
L
H
L
I
0
I
I
I
I
I
I
I
I
I
1
0
2
1
0
3
1
I
I
I
–1
–2
–3
2
1
0
13
OE
I
I
O
O
O
O
–1
–2
0
1
2 3
H
I
–1
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
15 14 12 11
FACT DATA
5-1
MC74AC350 MC74ACT350
FUNCTIONAL DESCRIPTION
The MC74AC350/74ACT350 is operationally equivalent to
a 4-input multiplexer with the inputs connected so that the
select code causes successive one-bit shifts of the data word.
This internal connection makes it possible to perform shifts of
0, 1, 2 or 3 places on words of any length.
shifters to be cascaded on the same output lines or to a
common bus. The shift function can be logical, with zeros
pulled in at either or both ends of the shifting field; arithmetic,
where the sign bit is repeated during a shift down; or end
around, where the data word forms a continuous loop.
A 7-bit data word is introduced at the I inputs and isshifted
n
LOGIC EQUATIONS
according to the code applied to the select inputs S , S .
0
1
O =S S I +S S I +S S I +S S I
1 0 1 –1 1 –2 1 –3
0
0
0
0
0
0
0
0
0
Outputs O –O are 3-state, controlled by an active-LOW
0
3
O =S S I +S S I +S S I +S S I
1
2
0
0
0
1 1 1 0 1 –1 1 I–2
0
output enable (OE). When OE is LOW, data outputs will follow
selected data inputs; when HIGH, the data outputs will be
forced to the high-impedance state. This feature allows
O =S S I +S S I +S S I +S S I
1 2 1 1 1 0 1 –1
0
0
0
O =S S I +S S I +S S I +S S I
3
1 3 1 2 1 1 1 0
0
LOGIC DIAGRAM
I
I
I
I
I
I
I
S
S
0
OE
–3
–2
–1
0
1
2
3
1
O
O
O
O
0
1
2
3
FACT DATA
5-2
MC74AC350 MC74ACT350
APPLICATIONS
16-Bit Shift-Up 0 to 3 Places, Zero Backfill
0
1
2
3
4
5
6
7
8
9 10 11
12 13 14 15
GND
I
0
I
I
I
I
I
I
I
0
I
I
I
I
I
I
I
0
I
I
I
I
I
I
I
0
I
I
I
I
I
I
3
–3 –2 –1
0
1
2
3
–3 –2 –1
0
1
2
3
–3 –2 –1
0
1
2
3
–3 –2 –1
0
1
2
S
S
S
S
S
S
S
S
1
1
1
1
OE
Y
OE
Y
OE
Y
OE
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
0
0
1
2
3
0
1
2
3
0
1
2
3
0
1
2
S
S
OE
0
1
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
S
1
S
0
L
L
NO SHIFT
L
H
H
H
L
SHIFT 1 PLACE
SHIFT 2 PLACES
SHIFT 3 PLACES
H
8-Bit End Around Shift 0 to 7 Places
0
1
2
3
4
5
6
7
I
0
I
I
I
I
I
I
I
0
I
I
I
I
I
I
I
0
I
I
I
I
I
I
I
0
I
I
I
I
I
I
3
–3 –2 –1
0
1
2
3
–3 –2 –1
0
1
2
3
–3 –2 –1
0
1
2
3
–3 –2 –1
0
1
2
S
S
S
S
S
S
S
S
1
1
1
1
OE
Y
OE
Y
OE
Y
OE
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
3
0
1
2
3
0
1
2
3
0
1
2
3
0
1
2
S
S
S
S
0
1
2
2
0
1
2
3
4
5
6
7
S
2
S
1
S
0
S
2
S
1
S
0
L
L
L
NO SHIFT
H
L
H
SHIFT END AROUND 5
SHIFT END AROUND 6
SHIFT END AROUND 7
L
L
L
L
H
H
H
L
SHIFT END AROUND 1
SHIFT END AROUND 2
SHIFT END AROUND 3
H
H
H
H
L
H
H
H
L
L
SHIFT END AROUND 4
FACT DATA
5-3
MC74AC350 MC74ACT350
13-Bit Twos Complement Scaler
12 11 10 9
8
7
6
5
4
3
2
1
S
I
0
I
I
I
I
I
I
I
0
I
I
I
I
I
I
I
0
I
I
I
I
I
I
3
–3 –2 –1
0
1
2
3
–3 –2 –1
0
1
2
3
–3 –2 –1
0
1
2
S
S
S
S
S
S
1
1
1
OE
Y
OE
Y
OE
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
3
0
1
2
3
0
1
2
3
0
1
2
S
S
0
1
12
11
10
9
8
7
6
5
4
3
2
1
S
S
S
SCALE
1/8
1
0
L
L ÷ 8
H ÷ 4
L ÷ 2
L
H
H
1/4
1/2
H NO CHANGE
1
MAXIMUM RATINGS*
Symbol
Parameter
Value
Unit
V
V
V
DC Supply Voltage (Referenced to GND)
DC Input Voltage (Referenced to GND)
DC Output Voltage (Referenced to GND)
DC Input Current, per Pin
–0.5 to +7.0
CC
–0.5 to V
+0.5
+0.5
V
in
CC
CC
V
out
–0.5 to V
V
I
I
I
±20
mA
mA
mA
°C
in
DC Output Sink/Source Current, per Pin
±50
±50
out
CC
DC V
or GND Current per Output Pin
Storage Temperature
CC
T
stg
–65 to +150
* Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Recommended
Operating Conditions.
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Min
2.0
4.5
0
Typ
5.0
5.0
Max
6.0
Unit
V
′AC
V
Supply Voltage
CC
′ACT
5.5
V , V
in out
DC Input Voltage, Output Voltage (Ref. to GND)
V
CC
V
V
CC
V
CC
V
CC
V
CC
V
CC
@ 3.0 V
@ 4.5 V
@ 5.5 V
@ 4.5 V
@ 5.5 V
150
40
Input Rise and Fall Time (Note 1)
′AC Devices except Schmitt Inputs
ns/V
t , t
r f
25
10
Input Rise and Fall Time (Note 2)
′ACT Devices except Schmitt Inputs
t , t
r f
ns/V
8.0
T
Junction Temperature (PDIP)
Operating Ambient Temperature Range
Output Current — High
140
85
°C
°C
J
T
A
–40
25
I
–24
24
mA
mA
OH
OL
I
Output Current — Low
1. V from 30% to 70% V ; see individual Data Sheets for devices that differ from the typical input rise and fall times.
in
CC
2. V from 0.8 V to 2.0 V; see individual Data Sheets for devices that differ from the typical input rise and fall times.
in
FACT DATA
5-4
MC74AC350 MC74ACT350
DC CHARACTERISTICS
Symbol
74AC
= +25°C
74AC
T
A
=
V
(V)
CC
Parameter
Unit
Conditions
T
A
–40°C to +85°C
Typ
Guaranteed Limits
V
V
V
3.0
4.5
5.5
1.5
2.25
2.75
2.1
3.15
3.85
2.1
3.15
3.85
V
= 0.1 V
– 0.1 V
Minimum High Level
Input Voltage
IH
OUT
V
V
V
or V
CC
= 0.1 V
OUT
3.0
4.5
5.5
1.5
2.25
2.75
0.9
1.35
1.65
0.9
1.35
1.65
V
Maximum Low Level
Input Voltage
IL
or V
– 0.1 V
CC
3.0
4.5
5.5
2.99
4.49
5.49
2.9
4.4
5.4
2.9
4.4
5.4
I
= –50 µA
Minimum High Level
Output Voltage
OH
OUT
*V = V or V
IN IL IH
3.0
4.5
5.5
2.56
3.86
4.86
2.46
3.76
4.76
–12 mA
–24 mA
–24 mA
V
V
V
I
OH
V
OL
3.0
4.5
5.5
0.002
0.001
0.001
0.1
0.1
0.1
0.1
0.1
0.1
I = 50 µA
OUT
Maximum Low Level
Output Voltage
*V = V or V
IN IL
IH
3.0
4.5
5.5
0.36
0.36
0.36
0.44
0.44
0.44
12 mA
I
24 mA
24 mA
OL
I
IN
Maximum Input
Leakage Current
5.5
5.5
±0.1
±0.5
±1.0
±5.0
µA
µA
V = V , GND
CC
I
I
V (OE) = V , V
IL IH
Maximum
3-State
Current
OZ
I
V = V , GND
I
CC
= V , GND
CC
V
O
I
I
I
5.5
5.5
75
mA
mA
V
= 1.65 V Max
†Minimum Dynamic
Output Current
OLD
OHD
CC
OLD
OHD
–75
V
V
= 3.85 V Min
Maximum Quiescent
Supply Current
5.5
8.0
80
µA
= V or GND
CC
IN
* All outputs loaded; thresholds on input associated with output under test.
†Maximum test duration 2.0 ms, one output loaded at a time.
Note: I and I
@ 3.0 V are guaranteed to be less than or equal to the respective limit @ 5.5 V V
.
IN CC
CC
FACT DATA
5-5
MC74AC350 MC74ACT350
AC CHARACTERISTICS (For Figures and Waveforms — See Section 3)
74AC
74AC
T
= –40°C
A
T
C
= +25°C
= 50 pF
V
(V)
*
Fig.
No.
A
L
CC
Symbol
Parameter
to +85°C
C
Unit
= 50 pF
L
Min
Typ
Max
Min
Max
Propagation Delay
to O
3.3
5.0
4.0
3.0
12.5
8.5
3.0
2.5
13.5
9.5
t
t
t
t
t
t
t
t
ns
ns
ns
ns
ns
ns
ns
ns
3-5
3-5
3-6
3-6
3-7
3-8
3-7
3-8
PLH
I
n
n
Propagation Delay
to O
3.3
5.0
4.0
3.0
12.5
8.5
3.0
2.5
13.5
9.5
PHL
PLH
PHL
PZH
PZL
PHZ
PLZ
I
n
n
Propagation Delay
to O
3.3
5.0
5.0
3.5
15.5
11.0
4.0
2.5
17.5
12.0
S
n
n
Propagation Delay
to O
3.3
5.0
5.0
3.5
15.5
11.0
4.5
3.0
17.5
12.0
S
n
n
3.3
5.0
3.5
2.5
8.5
6.0
3.0
2.0
9.0
6.5
Output Enable to O
n
3.3
5.0
3.5
2.5
11.0
7.5
2.5
2.0
12.0
8.0
Output Enable to O
n
3.3
5.0
5.0
4.5
9.5
8.0
4.5
4.0
10.0
8.5
Output Enable to O
n
3.3
5.0
3.0
2.5
6.5
6.0
2.5
2.0
7.0
6.5
Output Enable to O
n
* Voltage Range 3.3 V is 3.3 V ±0.3 V.
Voltage Range 5.0 V is 5.0 V ±0.5 V.
FACT DATA
5-6
MC74AC350 MC74ACT350
DC CHARACTERISTICS
Symbol
74ACT
= +25°C
74ACT
T
A
=
V
(V)
CC
Parameter
Unit
Conditions
T
A
–40°C to +85°C
Typ
Guaranteed Limits
V
V
V
4.5
5.5
1.5
1.5
2.0
2.0
2.0
2.0
V
= 0.1 V
– 0.1 V
Minimum High Level
Input Voltage
IH
OUT
V
V
V
or V
CC
= 0.1 V
OUT
4.5
5.5
1.5
1.5
0.8
0.8
0.8
0.8
V
Maximum Low Level
Input Voltage
IL
or V
– 0.1 V
CC
4.5
5.5
4.49
5.49
4.4
5.4
4.4
5.4
I
= –50 µA
Minimum High Level
Output Voltage
OH
OUT
*V = V or V
IN IL IH
4.5
5.5
3.86
4.86
3.76
4.76
V
V
V
–24 mA
–24 mA
I
OH
V
OL
4.5
5.5
0.001
0.001
0.1
0.1
0.1
0.1
I = 50 µA
OUT
Maximum Low Level
Output Voltage
*V = V or V
IN IL
IH
4.5
5.5
0.36
0.36
0.44
0.44
24 mA
24 mA
I
OL
I
IN
Maximum Input
Leakage Current
5.5
5.5
±0.1
±1.0
µA
V = V , GND
I
CC
∆I
CCT
Additional Max. I /Input
CC
0.6
1.5
mA
V = V
– 2.1 V
I
CC
I
V (OE) = V , V
IL IH
Maximum
3-State
Current
OZ
I
5.5
±0.5
±5.0
µA
V = V , GND
I
CC
= V , GND
CC
V
O
I
I
I
5.5
5.5
75
mA
mA
V
= 1.65 V Max
†Minimum Dynamic
Output Current
OLD
OLD
OHD
–75
V
V
= 3.85 V Min
OHD
CC
Maximum Quiescent
Supply Current
5.5
8.0
80
µA
= V or GND
CC
IN
* All outputs loaded; thresholds on input associated with output under test.
†Maximum test duration 2.0 ms, one output loaded at a time.
FACT DATA
5-7
MC74AC350 MC74ACT350
AC CHARACTERISTICS (For Figures and Waveforms — See Section 3)
74ACT
74ACT
= –40°C
T
A
T
C
= +25°C
= 50 pF
V
(V)
*
Fig.
No.
A
CC
Symbol
Parameter
to +85°C
Unit
L
C
= 50 pF
L
Min
Typ
Max
Min
Max
Propagation Delay
to O
t
t
t
t
5.0
5.0
5.0
5.0
4.0
11.5
3.0
13.5
13.5
15.5
15.5
ns
ns
ns
ns
3-6
3-6
3-6
3-6
PLH
I
n
n
Propagation Delay
to O
4.0
4.5
4.5
11.5
13.0
13.0
3.0
3.5
3.5
PHL
PLH
PHL
I
n
n
Propagation Delay
to O
S
n
n
Propagation Delay
to O
S
n
n
t
t
t
t
Output Enable to O
5.0
5.0
5.0
5.0
4.0
4.0
4.0
4.0
9.0
10.0
10.0
8.0
3.0
3.0
3.0
3.0
10.0
11.5
11.0
9.0
ns
ns
ns
ns
3-7
3-8
3-7
3-8
PZH
PZL
PHZ
PLZ
n
Output Enable to O
n
Output Enable to O
n
Output Enable to O
n
* Voltage Range 5.0 V is 5.0 V ±0.5 V.
CAPACITANCE
Symbol
Value
Typ
Parameter
Unit
Test Conditions
C
C
Input Capacitance
Power Dissipation Capacitance
4.5
pF
pF
V
V
= 5.0 V
= 5.0 V
IN
CC
40.0
PD
CC
FACT DATA
5-8
MC74AC350 MC74ACT350
OUTLINE DIMENSIONS
N SUFFIX
PLASTIC DIP PACKAGE
NOTES:
CASE 648–08
ISSUE R
–A–
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. DIMENSION L TO CENTER OF LEADS WHEN
FORMED PARALLEL.
16
1
9
8
B
S
4. DIMENSION B DOES NOT INCLUDE MOLD FLASH.
5. ROUNDED CORNERS OPTIONAL.
INCHES
MILLIMETERS
DIM
A
B
C
D
F
MIN
MAX
0.770
0.270
0.175
0.021
0.70
MIN
18.80
6.35
3.69
0.39
1.02
MAX
19.55
6.85
4.44
0.53
1.77
F
0.740
0.250
0.145
0.015
0.040
C
L
SEATING
PLANE
–T–
G
H
J
K
L
0.100 BSC
0.050 BSC
2.54 BSC
1.27 BSC
K
M
0.008
0.015
0.130
0.305
10
0.21
0.38
3.30
7.74
10
H
J
0.110
0.295
0
2.80
7.50
0
G
D 16 PL
M
S
0.020
0.040
0.51
1.01
M
M
0.25 (0.010)
T
A
D SUFFIX
PLASTIC SOIC PACKAGE
CASE 751B–05
ISSUE J
–A–
NOTES:
1. DIMENSIONING AND TOLERANCING PER
ANSI Y14.5M, 1982.
16
1
9
8
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSIONS A AND B DO NOT INCLUDE
MOLD PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.15 (0.006)
PER SIDE.
5. DIMENSION D DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.127 (0.005) TOTAL
IN EXCESS OF THE D DIMENSION AT
MAXIMUM MATERIAL CONDITION.
–B–
P 8 PL
M
S
0.25 (0.010)
B
G
MILLIMETERS
INCHES
DIM
A
B
C
D
MIN
9.80
3.80
1.35
0.35
0.40
MAX
10.00
4.00
1.75
0.49
1.25
MIN
MAX
0.393
0.157
0.068
0.019
0.049
F
0.386
0.150
0.054
0.014
0.016
R X 45
K
C
F
G
J
K
M
P
R
1.27 BSC
0.050 BSC
–T–
SEATING
PLANE
0.19
0.10
0
0.25
0.25
7
0.008
0.004
0
0.009
0.009
7
J
M
D
16 PL
5.80
0.25
6.20
0.50
0.229
0.010
0.244
0.019
M
S
S
0.25 (0.010)
T
B
A
Motorolareserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representationorguaranteeregarding
the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and
specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters can and do vary in different
applications. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. Motorola does
not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in
systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of
the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such
unintendedor unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless
against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death
associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part.
Motorola and
are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer.
How to reach us:
USA/EUROPE: Motorola Literature Distribution;
JAPAN: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, Toshikatsu Otsuki,
P.O. Box 20912; Phoenix, Arizona 85036. 1–800–441–2447
6F Seibu–Butsuryu–Center, 3–14–2 Tatsumi Koto–Ku, Tokyo 135, Japan. 03–3521–8315
MFAX: RMFAX0@email.sps.mot.com –TOUCHTONE (602) 244–6609
INTERNET: http://Design–NET.com
HONG KONG: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park,
51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298
MC74AC350/D
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