MC74F350DD [MOTOROLA]
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| 型号： | MC74F350DD |
| 厂家： | 
MOTOROLA |
| 描述： | 暂无描述 |
| 文件： | 总5页 (文件大小：107K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
For:char
Printed on:Mon, Feb 6, 1995 09:48:35
From book:DL121CH4 (5) VIEW
Document:MC74F350 (5) VIEW
Last saved on:Fri, Feb 3, 1995 16:04:28
MC54/74F350
4-BIT SHIFTER
(With 3-State Outputs)
The MC54/74F350 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-or-
der 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 F350 can
perform zero-backfill, sign-extend or end-around (barrel) shift functions.
4-BIT SHIFTER
(With 3-State Outputs)
FAST SCHOTTKY TTL
• Linking Inputs for Word Expansion
• 3-State Outputs for Extending Shift Range
FUNCTIONAL DESCRIPTION
J SUFFIX
CERAMIC
CASE 620-09
The F350 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.
16
1
A 7-bit data word is introduced at the I inputs and is shifted according to
n
the code applied to the select inputs S , S . Outputs O –O are 3-state, con-
0
1
0
3
trolled by an active-LOW 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 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.
N SUFFIX
PLASTIC
CASE 648-08
16
1
LOGIC EQUATIONS
D SUFFIX
O = S S I + S S l + S S I + S S I
SOIC
CASE 751B-03
0
0
1 0 1 –1 1 –2 1 –3
0
0
0
16
O = S S I + S S I + S S l + S S I
1 1 1 0 1 –1 1 –2
1
2
0
0
0
0
0
0
0
0
0
0
0
0
1
O = S S I + S S I + S S I + S S I
1 2 1 1 1 0 1 –1
O = S S I + S S I + S S I + S S I
3
1 3
1 2
1 1
1 0
ORDERING INFORMATION
TRUTH TABLE
MC54FXXXJ
MC74FXXXN Plastic
MC74FXXXD SOIC
Ceramic
Inputs
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
L
H
L
I
0
I
I
I
I
I
I
I
I
I
1
0
2
1
0
3
LOGIC SYMBOL
I
I
I
–1
–2
–3
2
1
0
I
I
13
9 10
–1
–2
H
I
–1
H = HIGH Voltage Level
L = LOW Voltage Level
Z = High Impedance
X = Immaterial
OE S
S
0
1
1
2
3
4
I
I
I
–3
–2
–1
CONNECTION DIAGRAM
15
14
12
11
O
0
1
2
3
O
O
O
V
O
O
OE
13
O
O
S
S
1
CC
16
0
1
2
3
0
I
I
I
I
0
1
2
3
15
14
12
11
10
9
5
6
7
V
= PIN 16
CC
GND = PIN 8
1
2
3
4
5
6
8
7
I
I
I
I
I
I
I
3
GND
–3
–2
–1
0
1
2
FAST AND LS TTL DATA
4-153
MC54/74F350
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
3
0
1
2
GUARANTEED OPERATING RANGES
Symbol
Parameter
Min
4.5
–55
0
Typ
5.0
25
25
—
Max
5.5
Unit
V
CC
Supply Voltage
54, 74
54
V
125
70
T
A
Operating Ambient Temperature Range
°C
74
I
I
Output Current — High
Output Current — Low
54, 74
54, 74
—
–3.0
24
mA
mA
OH
—
—
OL
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)
Limits
Min
Typ
Max
Symbol
Parameter
Input HIGH Voltage
Unit
V
Test Conditions
V
IH
2.0
Guaranteed Input HIGH Voltage
Guaranteed Input LOW Voltage
V
V
Input LOW Voltage
0.8
V
IL
Input Clamp Diode Voltage
–1.2
V
I
I
I
I
= –18 mA
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
= MIN
IK
IN
54, 74
74
2.4
2.7
3.3
3.3
V
= –3.0 mA
= –3.0 mA
= 24 mA
= 4.5 V
= 4.75 V
= MIN
OH
OH
OL
V
OH
Output HIGH Voltage
V
V
OL
Output LOW Voltage
0.35
0.5
50
V
I
I
Output OFF Current — HIGH
Output OFF Current — LOW
µA
µA
V
V
V
V
V
= 2.7 V
= 0.5 V
= MAX
= MAX
OZH
OZL
OUT
OUT
–50
20
= 2.7 V
IN
IN
IN
I
IH
Input HIGH Current
Input LOW Current
µA
V
CC
= MAX
100
–1.2
= 7.0 V
= 0.5 V
I
I
mA
mA
V
V
= MAX
= MAX
IL
CC
Output Short Circuit
Current (Note 2)
–60
–150
V
= 0 V
OS
OUT
CC
I
I
I
22
26
26
35
41
42
Outputs HIGH
Outputs LOW
Outputs OFF
CCH
CCL
CCZ
Power Supply Current
mA
V
CC
= MAX
NOTES: 1. For conditions such as MIN or MAX, use the appropriate value specified under guaranteed operating ranges.
NOTES: 2. Not more than one output should be shorted at a time, nor for more than 1 second.
FAST AND LS TTL DATA
4-154
MC54/74F350
AC CHARACTERISTICS
54/74F
54F
74F
T
= +25°C
= +5.0 V
= 50 pF
T
V
= –55 to +125°C
T
A
= 0 to +70°C
= 5.0 V ±10%
A
A
V
CC
= 5.0 V ±10%
V
CC
CC
C
C
= 50 pF
C = 50 pF
L
L
L
Min
Max
Min
Max
Min
Max
Symbol
Parameter
Propagation Delay
to 0
Unit
t
t
3.0
2.5
6.0
5.5
3.0
2.5
7.5
7.0
3.0
2.5
7.0
6.5
PLH
PHL
ns
I
n
n
t
t
Propagation Delay
to O
4.0
3.0
10
8.5
4.0
3.0
13.5
10
4.0
3.0
11
9.5
PLH
PHL
ns
ns
ns
S
n
n
t
t
2.5
4.0
7.0
9.0
2.5
4.0
10.5
11
2.5
4.0
8.0
10
PZH
PZL
Output Enable Time
Output Disable Time
t
t
2.0
1.5
5.5
5.5
2.0
1.5
7.0
9.0
2.0
1.5
6.5
6.5
PHZ
PLZ
APPLICATIONS
16-Bit Shift-Up 0 to 3 Pieces, Zero Backfill
0
1
2
3
4
5
6
7
8
9
I
10 11
12 13 14 15
GND
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
–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 3
S
S
S
S
S
S
S
S
0
0
0
0
1
1
1
1
OE
OE
OE
OE
Y
Y
Y
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
0
1
S
OE
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
S
1
S
0
L
L
NO SHIFT
SHIFT 1 PLACE
L
H
H
H
L
SHIFT 2 PLACES
SHIFT 3 PLACES
H
FAST AND LS TTL DATA
4-155
MC54/74F350
8-Bit End Around Shift 0 to 7 Pieces
0
1
2
3
4
5
6
7
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
–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 3
S
S
S
S
S
S
S
S
0
0
0
0
1
1
1
1
OE
OE
OE
OE
Y
Y
Y
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
H
H
L
H
L
SHIFT END AROUND 1
SHIFT END AROUND 2
SHIFT END AROUND 3
SHIFT END AROUND 4
H
H
H
H
L
H
L
H
L
H
13-Bit Twos Complement Scaler
12 11 10
9
8
7
6
5
4
I
3
I
2
1
I
S
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
–3 –2 –1
0
1
2
3
–3 –2 –1
0
1
2
3
–3 –2 –1
0
1
2 3
S
S
S
S
S
S
0
0
0
1
1
1
OE
OE
OE
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
3
0
1
2
3
0
1
2
3
0
1
2
S
0
S
1
12
11
10
9
8
7
6
5
4
3
2
1
S
S
S
SCALE
1/8
1
0
L
L
L ÷ 8
H ÷ 4
L ÷ 2
1/4
H
H
1/2
H NO CHANGE
1
FAST AND LS TTL DATA
4-156
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