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74VHCT574A PDF даташит

Спецификация 74VHCT574A изготовлена ​​​​«Fairchild Semiconductor» и имеет функцию, называемую «Octal D-Type Flip-Flop with 3-STATE Outputs».

Детали детали

Номер произв 74VHCT574A
Описание Octal D-Type Flip-Flop with 3-STATE Outputs
Производители Fairchild Semiconductor
логотип Fairchild Semiconductor логотип 

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74VHCT574A Даташит, Описание, Даташиты
July 1997
Revised April 1999
74VHCT574A
Octal D-Type Flip-Flop with 3-STATE Outputs
General Description
The VHCT574A is an advanced high speed CMOS octal
flip-flop with 3-STATE output fabricated with silicon gate
CMOS technology. It achieves the high speed operation
similar to equivalent Bipolar Schottky TTL while maintain-
ing the CMOS low power dissipation. This 8-bit D-type flip-
flop is controlled by a clock input (CP) and an Output
Enable input (OE). When the OE input is HIGH, the eight
outputs are in a high impedance state.
Protection circuits ensure that 0V to 7V can be applied to
the input and output (Note 1) pins without regard to the
supply voltage. This device can be used to interface 3V to
5V systems and two supply systems such as battery back
up. This circuit prevents device destruction due to mis-
matched supply and input voltages.
Note 1: Outputs in OFF-State.
Features
s High speed: fMAX = 140 MHz (typ) at TA = 25°C
s Power Down Protection is provided on all inputs and
outputs.
s Low Noise: VOLP = 1.6V (max)
s Low Power Dissipation:
ICC = 4 µA (max) @ TA = 25°C
s Pin and Function Compatible with 74HCT574
Ordering Code:
Order Number Package Number
Package Description
74VHCT574AM
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
74VHCT574ASJ
M20D
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74VHCT574AMTC
MTC20
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
74VHCT574AN
N20A
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Surface mount packages are also available on Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbol
Connection Diagram
IEEE/IEC
Pin Descriptions
Pin Names
D0–D7
CP
OE
O0–O7
Description
Data Inputs
Clock Pulse Input 3-STATE
Output Enable Input 3-STATE
Outputs
© 1999 Fairchild Semiconductor Corporation DS500029.prf
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74VHCT574A Даташит, Описание, Даташиты
Functional Description
The VHCT574A consists of eight edge-triggered flip-flops
with individual D-type inputs and 3-STATE true outputs.
The buffered clock and buffered Output Enable are com-
mon to all flip-flops. The eight flip-flops will store the state
of their individual D inputs that meet the setup and hold
time requirements on the LOW-to-HIGH Clock (CP) transi-
tion. With the Output Enable (OE) LOW, the contents of the
eight flip-flops are available at the outputs. When the OE is
HIGH, the outputs go to the high impedance state. Opera-
tion of the OE input does not affect the state of the flip-
flops.
Truth Table
Inputs
Dn CP
H
L
XX
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
= LOW-to-HIGH Transition
Outputs
OE On
LH
LL
HZ
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.
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74VHCT574A Даташит, Описание, Даташиты
Absolute Maximum Ratings(Note 2)
Supply Voltage (VCC)
DC Input Voltage (VIN)
DC Output Voltage (VOUT)
(Note 3)
(Note 4)
Input Diode Current (IIK)
Output Diode Current (IOK) (Note 5)
DC Output Current (IOUT)
DC VCC/GND Current (ICC)
Storage Temperature (TSTG)
Lead Temperature (TL)
(Soldering, 10 seconds)
0.5V to +7.0V
0.5V to +7.0V
0.5V to VCC + 0.5V
0.5V to +7.0V
20 mA
±20 mA
±25 mA
±75 mA
65°C to +150°C
260°C
Recommended Operating
Conditions (Note 6)
Supply Voltage (VCC)
Input Voltage (VIN)
Output Voltage (VOUT)
(Note 3)
(Note 4)
4.5V to +5.5V
0V to +5.5V
0V to VCC
0V to +5.5V
Operating Temperature (TOPR)
40°C to +85°C
Input Rise and Fall Time (tr, tf)
VCC = 5.0V ± 0.5V
0 ns/V 20 ns/V
Note 2: Absolute Maximum Ratings are values beyond which the device
may be damaged or have its useful life impaired. The databook specifica-
tions should be met, without exception, to ensure that the system design is
reliable over its power supply, temperature, and output/input loading vari-
ables. Fairchild does not recommend operation outside databook specifica-
tions.
Note 3: HIGH or LOW state. IOUT absolute maximum rating must be
observed.
Note 4: When outputs are in OFF-State or when VCC = OV.
Note 5: VOUT < GND, VOUT > VCC (Outputs Active).
Note 6: Unused inputs must be held HIGH or LOW. They may not float.
DC Electrical Characteristics
Symbol
Parameter
VIH
VIL
VOH
VOL
IOZ
IIN
ICC
ICCT
HIGH Level
Input Voltage
LOW Level
Input Voltage
HIGH Level
Output Voltage
LOW Level
Output Voltage
3-STATE Output
Off-State Current
Input Leakage
Current
Quiescent Supply
Current
Maximum ICC/Input
VCC
(V)
4.5
5.5
4.5
5.5
4.5
4.5
5.5
0–5.5
5.5
5.5
IOFF
Output Leakage Current
0.0
(Power Down State)
Min
2.0
2.0
4.40
3.94
TA = 25°C
Typ
4.50
0.0
Max
0.8
0.8
0.1
0.36
±0.25
±0.1
4.0
1.35
0.5
TA = −40°C to +85°C
Min Max
2.0
20
0.8
0.8
4.40
3.80
0.1
0.44
±2.5
±1.0
Units
Conditions
V
V
V VIN = VIH IOH = −50 µA
V or VIL IOH = −8 mA
V VIN = VIH IOL = 50 µA
V or VIL IOL = 8 mA
µA VIN = VIH or VIL
VOUT = VCC or GND
µA VIN = 5.5V or GND
40.0
µA VIN = VCC or GND
1.50
5.0
mA VIN = 3.4V
Other Input = VCC or GND
µA VOUT = 5.5V
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