Philips Semiconductors FAST Products
Product specification
4-bit shifter
74F350
FEATURES
select lines
•
Shifts 4 bits of data to 0, 1, 2, 3 places under control of two
•
3-State outputs for bus organized systems
DESCRIPTION
The 74F350 is a combination logic circuit that shifts a 4-bit word
from 0 to 3 places. No clocking is required as with shift registers.
The 74F350 can be used to shift any number of bits any number of
places up or down by suitable interconnection. Shifting can be:
1. Logical — with logic zeros filled in at either end of the shifting
field.
2. Arithmetic — where the sign bit is extended during a shift down.
3. End around — where the data word forms a continuous loop.
The 3-State outputs are useful for bus interface applications or
expansion to a larger number of shift positions in end around
shifting. The active Low Output Enable (OE) controls the state of the
outputs. The outputs are in the high impedance “off” state when OE
is High, and they are active when OE is Low.
PIN CONFIGURATION
I–3
I–2
I–1
I0
I1
I2
I3
GND
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
CC
Y0
Y1
OE
Y2
Y3
S0
S1
SF00205
ORDERING INFORMATION
DESCRIPTION
16-pin plastic DIP
16-pin plastic SO
COMMERCIAL RANGE
V
CC
= 5V
±10%,
T
amb
= 0°C to +70°C
N74F350N
N74F350D
TYPE
74F350
TYPICAL PROPAGATION DELAY
5.2ns
TYPICAL SUPPLY CURRENT (TOTAL)
24mA
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
PINS
I–n, In
S0, S1
OE
Y0 – Y3
Data inputs
Select inputs (active Low)
Output Enable input (active Low)
Data outputs
DESCRIPTION
74F (U.L.) HIGH/LOW
1.0/2.0
1.0/2.0
1.0/2.0
150/40
LOAD VALUE HIGH/LOW
20µA/1.2mA
20µA/1.2mA
20µA/1.2mA
3.0mA/24mA
NOTE:
One (1.0) FAST unit load is defined as: 20µA in the High state and 0.6mA in the Low state.
LOGIC SYMBOL
1
2
3
4
5
6
7
IEC/IEEE SYMBOL
D MUX
10
9
13
I–3 I–2 I–1
I0
I1
I2
I3
10
11
12
13
11
12
13
14
12
13
14
15
13
14
15
16
3
2
1
0
3
2
1
0
3
2
1
0
3
2
1
0
0
1
EN
G
0
[SHIFTER]
3
9
10
13
S1
S0
OE
Y0
Y1
Y2
Y3
2
3
15
14
12
11
4
5
Z11
Z12
Z13
Z14
Z15
Z16
1
Z10
≥1
15
≥1
14
V
CC
= Pin 16
GND = Pin 8
≥1
12
SF00206
6
7
≥1
11
SF00207
March 20, 1989
1
853–0368 96093
Philips Semiconductors FAST Products
Product specification
4-bit shifter
74F350
LOGIC DIAGRAM
I–3
1
I–2
2
I–1
3
I0
4
I1
5
I2
6
I3
7
S1
9
S0
10
OE
13
15
V
CC
= Pin 16
GND = Pin 8
Y0
14
Y1
12
Y2
11
Y3
SF00208
FUNCTION TABLE
INPUTS
OE
H
L
L
L
L
H =
L =
X =
Z =
Dn =
S1
X
L
L
H
H
S0
X
L
H
L
H
I3
X
D3
X
X
X
I2
X
D2
D2
X
X
I1
X
D1
D1
D1
X
I0
X
D0
D0
D0
D0
I–1
X
X
D–1
D–1
D–1
I–2
X
X
X
D–2
D–2
I–3
X
X
X
X
D–3
Y3
Z
D3
D2
D1
D0
OUTPUTS
Y2
Z
D2
D1
D0
D–1
Y1
Z
D1
D0
D–1
D–2
Y0
Z
D0
D–1
D–2
D–3
High voltage level
Low voltage level
Don’t care
High impedance “off” state
High or Low state of referenced In input
March 20, 1989
2
Philips Semiconductors FAST Products
Product specification
4-bit shifter
74F350
APPLICATION FOR 16-BIT SHIFT UP 0, 1, 2, OR 3 PLACES
0
1
2
3
4
5
6
7
8
9 10 11
12 13 14 15
GND
I-3 I-2 I-1 I0 I1 I2 I3
S0
S1
OE
Y0 Y1 Y2 Y3
S0
S1
OE
0
S0
L
H
L
H
S1
L
L
H
H
MODE
No shift
Shift 1 place
Shift 2 places
Shift 3 places
1
2
3
4
5
6
7
8
9 10 11
12 13 14 15
S0
S1
OE
Y0 Y1 Y2 Y3
I-3 I-2 I-1 I0 I1 I2 I3
S0
S1
OE
Y0 Y1 Y2 Y3
I-3 I-2 I-1 I0 I1 I2 I3
S0
S1
OE
Y0 Y1 Y2 Y3
I-3 I-2 I-1 I0 I1 I2 I3
SF00209
APPLICATION FOR 8-BIT END AROUND SHIFT 0, 1, 2, 3, 4, 5, 6, OR 7 PLACES
0
1
2
3
4
5
6
7
I-3 I-2 I-1 I0 I1 I2 I3
S0
S1
OE
Y0 Y1 Y2 Y3
S0
S1
S2
S3
S0
S1
I-3 I-2 I-1 I0 I1 I2 I3
S0
S1
I-3 I-2 I-1 I0 I1 I2 I3
S0
S1
I-3 I-2 I-1 I0 I1 I2 I3
OE
Y0 Y1 Y2 Y3
OE
Y0 Y1 Y2 Y3
OE
Y0 Y1 Y2 Y3
0
S2
L
L
L
L
H
H
H
H
S1
L
L
H
H
L
L
H
H
S0
L
H
L
H
L
H
L
H
1
2
3
4
5
6
7
MODE
No shift
Shift end around 1
Shift end around 2
Shift end around 3
Shift end around 4
Shift end around 5
Shift end around 6
Shift end around 7
SF00210
March 20, 1989
3
Philips Semiconductors FAST Products
Product specification
4-bit shifter
74F350
APPLICATION FOR 13-BIT TWO’S COMPLEMENT SCALER
12 11 10 9
8
7
6
5
4
3
2
1
0
I-3 I-2 I-1 I0 I1 I2 I3
S0
S1
OE
Y0 Y1 Y2 Y3
S0
S1
S0
S1
I-3 I-2 I-1 I0 I1 I2 I3
S0
S1
I-3 I-2 I-1 I0 I1 I2 I3
OE
Y0 Y1 Y2 Y3
OE
Y0 Y1 Y2 Y3
S1
L
L
H
H
S0
L
H
L
H
÷
8
÷
4
÷
2
No change
SCALE
1/8
1/4
1/2
1
12 11 10 9
8
7
6
5
4
3
2
1
0
SF00211
ABSOLUTE MAXIMUM RATINGS
(Operation beyond the limits set forth in this table may impair the useful life of the device.
Unless otherwise noted these limits are over the operating free-air temperature range.)
SYMBOL
V
CC
V
IN
I
IN
V
OUT
I
OUT
T
amb
T
stg
Supply voltage
Input voltage
Input current
Voltage applied to output in High output state
Current applied to output in Low output state
Operating free-air temperature range
Storage temperature range
PARAMETER
RATING
–0.5 to +7.0
–0.5 to +7.0
–30 to +5
–0.5 to V
CC
48
0 to +70
–65 to +150
UNIT
V
V
mA
V
mA
°C
°C
RECOMMENDED OPERATING CONDITIONS
LIMITS
SYMBOL
V
CC
V
IH
V
IL
I
IK
I
OH
I
OL
T
amb
Supply voltage
High-level input voltage
Low-level input voltage
Input clamp current
High-level output current
Low-level output current
Operating free-air temperature range
0
PARAMETER
MIN
4.5
2.0
0.8
–18
–3
24
+70
NOM
5.0
MAX
5.5
V
V
V
mA
mA
mA
°C
UNIT
March 20, 1989
4
Philips Semiconductors FAST Products
Product specification
4-bit shifter
74F350
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.)
SYMBOL
PARAMETER
TEST CONDITIONS
1
V
CC
= MIN, V
IL
= MAX
V
IH
= MIN, I
OH
= MAX
Low-level output voltage
Input clamp voltage
Input current at maximum input voltage
High-level input current
Low-level input current
Off-state output current,
High-level voltage applied
Off-state output current,
Low-level voltage applied
Short-circuit output current
3
I
CCH
I
CC
Supply current (total)
I
CCL
I
CCZ
V
CC
= MAX
V
CC
= MIN, V
IL
= MAX
V
IH
= MIN, I
OL
= MAX
V
CC
= MIN, I
I
= I
IK
V
CC
= MAX, V
I
= 7.0V
V
CC
= MAX, V
I
= 2.7V
V
CC
= MAX, V
I
= 0.5V
V
CC
= MAX, V
O
= 2.7V
V
CC
= MAX, V
O
= 0.5V
V
CC
= MAX
–60
22
26
26
±10%V
CC
±5%V
CC
±10%V
CC
±5%V
CC
LIMITS
MIN
2.4
V
2.7
3.4
0.35
0.35
–0.73
0.50
V
0.50
–1.2
100
20
–1.2
50
–50
–150
35
41
42
V
µA
µA
mA
µA
µA
mA
mA
mA
mA
TYP
2
MAX
UNIT
V
OH
High-level output voltage
V
OL
V
IK
I
I
I
IH
I
IL
I
OZH
I
OZL
I
OS
NOTES:
1. For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions for the applicable type.
2. All typical values are at V
CC
= 5V, T
amb
= 25°C.
3. Not more than one output should be shorted at a time. For testing I
OS
, the use of high-speed test apparatus and/or sample-and-hold
techniques are preferable in order to minimize internal heating and more accurately reflect operational values. Otherwise, prolonged shorting
of a High output may raise the chip temperature well above normal and thereby cause invalid readings in other parameter tests. In any
sequence of parameter tests, I
OS
tests should be performed last.
AC ELECTRICAL CHARACTERISTICS
LIMITS
SYMBOL
PARAMETER
TEST
CONDITION
V
CC
= +5.0V
T
amb
= +25°C
C
L
= 50pF, R
L
= 500Ω
MIN
t
PLH
t
PHL
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
Propagation delay
In to Yn
Propagation delay
Sn to Yn
Output Enable time to
High or Low level
Output Disable time to
High or Low level
Waveform 1
Waveform 1
Waveform 2
Waveform 3
Waveform 2
Waveform 3
3.0
2.5
4.0
3.0
2.5
4.0
2.0
2.0
TYP
4.5
4.0
7.8
6.5
5.0
7.0
3.9
4.0
MAX
6.0
5.5
10.0
8.5
7.0
9.0
5.5
5.5
V
CC
= +5.0V
±
10%
T
amb
= 0°C to +70°C
C
L
= 50pF, R
L
= 500Ω
MIN
3.0
2.5
4.0
3.0
2.5
4.0
2.0
2.0
MAX
7.0
6.5
11.0
9.5
8.0
10.0
6.5
6.5
ns
ns
ns
ns
UNIT
March 20, 1989
5
微控制器 MCU
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
