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74F323SC PDF даташит

Спецификация 74F323SC изготовлена ​​​​«Fairchild» и имеет функцию, называемую «Octal Universal Shift/Storage Register with Synchronous Reset and Common I/O Pins».

Детали детали

Номер произв 74F323SC
Описание Octal Universal Shift/Storage Register with Synchronous Reset and Common I/O Pins
Производители Fairchild
логотип Fairchild логотип 

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74F323SC Даташит, Описание, Даташиты
April 1988
Revised August 1999
74F323
Octal Universal Shift/Storage Register
with Synchronous Reset and Common I/O Pins
General Description
The 74F323 is an 8-bit universal shift/storage register with
3-STATE outputs. Its function is similar to the 74F299 with
the exception of Synchronous Reset. Parallel load inputs
and flip-flop outputs are multiplexed to minimize pin count.
Separate serial inputs and outputs are provided for Q0 and
Q7 to allow easy cascading. Four operation modes are
possible: hold (store), shift left, shift right and parallel load.
Features
s Common parallel I/O for reduced pin count
s Additional serial inputs and outputs for expansion
s Four operating modes: shift left, shift right, load and
store
s 3-STATE outputs for bus-oriented applications
Ordering Code:
Order Number Package Number
Package Description
74F323SC
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
74F323PC
N20A
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbols
Connection Diagram
IEEE/IEC
© 1999 Fairchild Semiconductor Corporation DS009517
www.fairchildsemi.com









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74F323SC Даташит, Описание, Даташиты
Unit Loading/Fan Out
Pin Names
Description
CP
DS0
DS7
S0, S1
SR
OE1, OE2
I/O0–I/O7
Q0, Q7
Clock Pulse Input (Active Rising Edge)
Serial Data Input for Right Shift
Serial Data Input for Left Shift
Mode Select Inputs
Synchronous Reset Input (Active LOW)
3-STATE Output Enable Inputs (Active LOW)
Multiplexed Parallel Data Inputs
3-STATE Parallel Data Outputs
Serial Outputs
U.L.
HIGH/LOW
1.0/1.0
1.0/1.0
1.0/1.0
1.0/2.0
1.0/1.0
1.0/1.0
3.5/1.083
150/40 (33.3)
50/33.3
Functional Description
The 74F323 contains eight edge-triggered D-type flip-flops
and the interstage logic necessary to perform synchronous
reset, shift left, shift right, parallel load and hold operations.
The type of operation is determined by S0 and S1 as shown
in the Mode Select Table. All flip-flop outputs are brought
out through 3-STATE buffers to separate I/O pins that also
serve as data inputs in the parallel load mode. Q0 and Q7
are also brought out on other pins for expansion in serial
shifting of longer words.
A LOW signal on SR overrides the Select inputs and allows
the flip-flops to be reset by the next rising edge of CP. All
other state changes are also initiated by the LOW-to-HIGH
CP transition. Inputs can change when the clock is in either
state provided only that the recommended setup and hold
times, relative to the rising edge of CP, are observed.
A HIGH signal on either OE1 or OE2 disables the 3-STATE
buffers and puts the I/O pins in the high impedance state.
In this condition the shift, load, hold and reset operations
can still occur. The 3-STATE buffers are also disabled by
HIGH signals on both S0 and S1 in preparation for a paral-
lel load operation.
Logic Diagram
Mode Select Table
Inputs
Response
SR S1 S0 CP
L X X
Synchronous Reset; Q0–Q7 = LOW
H H H
Parallel Load; I/On Qn
H L H
Shift Right; DS0 Q0, Q0 Q1, etc.
H H L
Shift Left; DS7 Q7, Q7 Q6, etc.
H L L X Hold
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
= LOW-to-HIGH transition
Input IIH/IIL
Output IOH/IOL
20 µA/0.6 mA
20 µA/0.6 mA
20 µA/0.6 mA
20 µA/1.2 mA
20 µA/0.6 mA
20 µA/0.6 mA
70 µA/0.65 mA
3 mA/24 mA (20 mA)
1 mA/20 mA
www.fairchildsemi.com
Please note that this diagram is provided only for the understanding of logic
operations and should not be used to estimate propagation delays.
2









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74F323SC Даташит, Описание, Даташиты
Absolute Maximum Ratings(Note 1)
Storage Temperature
65°C to +150°C
Ambient Temperature under Bias
55°C to +125°C
Junction Temperature under Bias
55°C to +150°C
VCC Pin Potential to Ground Pin
Input Voltage (Note 2)
0.5V to +7.0V
0.5V to +7.0V
Input Current (Note 2)
30 mA to +5.0 mA
Voltage Applied to Output
in HIGH State (with VCC = 0V)
Standard Output
3-STATE Output
0.5V to VCC
0.5V to +5.5V
Current Applied to Output
in LOW State (Max)
twice the rated IOL (mA)
ESD Last Passing Voltage (Min)
4000V
Recommended Operating
Conditions
Free Air Ambient Temperature
Supply Voltage
0°C to +70°C
+4.5V to +5.5V
Note 1: Absolute maximum ratings are values beyond which the device
may be damaged or have its useful life impaired. Functional operation
under these conditions is not implied.
Note 2: Either voltage limit or current limit is sufficient to protect inputs.
DC Electrical Characteristics
Symbol
Parameter
Min Typ Max Units VCC
Conditions
VIH
VIL
VCD
VOH
VOL
IIH
IBVI
IBVIT
ICEX
VID
IOD
Input HIGH Voltage
Input LOW Voltage
Input Clamp Diode Voltage
Output HIGH
Voltage
Output LOW
Voltage
Input HIGH Current
Input HIGH Current
Breakdown Test
Input HIGH Current
Breakdown (I/O)
Output HIGH
Leakage Current
Input Leakage
Test
Output Leakage
Circuit Current
10% VCC
10% VCC
5% VCC
5% VCC
10% VCC
10% VCC
2.0
2.5
2.4
2.7
2.7
4.75
V Recognized as a HIGH Signal
0.8 V
Recognized as a LOW Signal
1.2 V Min IIN = −18 mA
IOH = −1 mA (Q0, Q7)
V Min IOH = −3 mA (I/On)
IOH = −1 mA (Q0, Q7)
IOH = −3 mA (I/On)
0.5 V Min IOL = 20 mA (Q0, Q7)
0.5 IOL = 24 mA (I/On)
5.0 µA Max VIN = 2.7V
7.0 µA Max VIN = 7.0V (Non I/O Inputs)
0.5 mA Max VIN = 5.5V (I/O Inputs)
50 µA Max VOUT = VCC
V
3.75
µA
0.0 IID = 1.9 µA
All Other Pins Grounded
0.0 VIOD = 150 mV
All Other Pins Grounded
IIL
IOS
IZZ
ICCH
ICCL
ICCZ
Input LOW Current
Output Short-Circuit Current
Bus Drainage Test
Power Supply Current
Power Supply Current
Power Supply Current
0.6 mA Max VIN = 0.5V (CP, DS0, DS7, SR, OE1, OE2)
1.2 mA Max VIN = 0.5V (S0, S1)
60
150 mA
Max VOUT = 0V
500 µA 0.0V VOUT = 5.25V
68 95 mA Max VO = HIGH
68 95 mA Max VO = LOW
68 95 mA Max VO = HIGH Z
3 www.fairchildsemi.com










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Номер в каталогеОписаниеПроизводители
74F323SCOctal Universal Shift/Storage Register with Synchronous Reset and Common I/O PinsFairchild
Fairchild

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