74F350PC Fairchild Semiconductor, 74F350PC Datasheet - Page 2

• Manufacturer Part Number: 74F350PC
• Description: IC SHIFTER 4BIT 3 STATE 16-DIP
• Manufacturer: Fairchild Semiconductor
• Series: 74Fr

Specifications of 74F350PC

• Logic Type: Register, Multiplexed
• Output Type: Standard
• Number Of Elements: 1
• Number Of Bits Per Element: 4
• Function: Universal
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: 16-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 74F350

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Unit Loading/Fan Out
Functional Description
The 74F350 is operationally equivalent to a 4-input multi-
plexer 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.
A 4-bit data word is introduced at the I
shifted according to the code applied to the select inputs
S
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
Logic Diagram
Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays.
0
, S
1
. Outputs O
S
I
OE
O
0
3
0
Pin Names
, S
–I
–O
3
1
3
0
–O
3
are 3-STATE, controlled by an
Select Inputs
Data Inputs
Output Enable Input (Active LOW)
3-STATE Outputs
Description
n
inputs and is
2
logical, with zeros pulled in at either or both ends of the
shifting field; arithmetic, where the sign bit is repeated dur-
ing a shift down; or end around, where the data word forms
a continuous loop.
Logic Equations
O
O
O
O
0
1
2
3
S
S
S
S
150/40 (33.3)
0
0
0
0
HIGH/LOW
S
S
S
S
1.0/2.0
1.0/2.0
1.0/2.0
1
1
1
1
I
I
I
I
U.L.
0
1
2
3
S
S
S
S
0
0
0
0
S
S
S
S
1
1
1
1
I
I
I
I
0
1
2
1
S
S
S
S
3 mA/24 mA (20 mA)
0
0
0
0
S
S
S
Output I
S
20 A/ 1.2 mA
20 A/ 1.2 mA
20 A/ 1.2 mA
1
1
1
1
I
I
I
Input I
0
1
I
1
2
S
S
S
0
0
S
0
S
S
IH
OH
0
S
1
1
S
/I
1
I
I
0
/I
1
I
IL
1
OL
I
2
3