U74LVC1G79 [UTC]
SINGLE POSITIVE-EDGE-TRIGGERED D-TYPE FLIP-FLOP; 单上升沿触发的D型触发器
| 型号： | U74LVC1G79 |
| 厂家： | 
Unisonic Technologies |
| 描述： | SINGLE POSITIVE-EDGE-TRIGGERED D-TYPE FLIP-FLOP |
| 文件： | 总7页 (文件大小：192K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UNISONIC TECHNOLOGIES CO., LTD
U74LVC1G79
CMOS IC
SINGLE
POSITIVE-EDGE-TRIGGERED
D-TYPE FLIP-FLOP
DESCRIPTION
The U74LVC1G79 is a single positive-edge-triggered D-type
flip-flop.
When data at the data input (D) meets the set-up time
requirements, the data is transferred to the outputs (Q) on the
positive-going edge of the clock pulse. Following the hold-time
interval, data at the D input can be changed without affecting the
level at the outputs.
This device has power-down protective circuit, preventing device
destruction when it is powered down.
FEATURES
* Operate from 1.65V to 5.5V
* Inputs accept voltages to 5.5V
* Ioff supports partial-power-down mode
* Low power dissipation: ICC=10μA (Max.)
* ±24mA output drive(VCC=3.3V)
ORDERING INFORMATION
Ordering Number
Lead Free Plating
Package
SOT-353
Packing
Tape Reel
Halogen Free
U74LVC1G79G-AL5-R
U74LVC1G79L-AL5-R
MARKING
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Copyright © 2012 Unisonic Technologies Co., Ltd
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U74LVC1G79
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PIN CONFIGURATION
FUNCTION TABLE (EACH GATE）
INPUT
OUTPUT
Q
CLK
↑
D
H
L
H
L
↑
L
X
Q0
Note: H: HIGH voltage level; L: LOW voltage level; X: Don’t care; ↑: Low to High CLK transition
Q0: indicates the state of referenced input, one set-up time prior to the LOW-to-HIGH CLK transition
LOGIC DIAGRAM (positive logic)
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ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
VCC
RATINGS
-0.5 ~ +6.5
UNIT
Supply Voltage
Input Voltage
V
V
V
VIN
-0.5 ~ +6.5
Output in the high or low state
Output in the high-impedance or
power-off state
-0.5 ~ VCC+0.5
Output Voltage
VOUT
-0.5 ~ +6.5
V
VCC or GND Current
ICC
IOUT
IIK
±100
±50
mA
mA
mA
mA
°C
Continuous Output Current (VOUT=0 ~ VCC)
Input Clamp Current (VIN<0)
-50
Output Clamp Current (VOUT<0 )
Storage Temperature Range
IOK
-50
TSTG
-65 ~ +150
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
TEST CONDITIONS
Operating
MIN
TYP
MAX
5.5
UNIT
1.65
V
V
V
V
Supply Voltage
VCC
Data retention only
1.5
Input Voltage
VIN
0
5.5
Output Voltage
VOUT
0
0.65*VCC
1.7
VCC
VCC =1.65V~1.95V
VCC =2.3V~2.7V
VCC =3.0V~3.6V
VCC =4.5V~5.5V
High-Level Input Voltage
Low-Level Input Voltage
VIH
V
V
2
0.7*VCC
VCC =1.65V~1.95V
0.35*VCC
0.7
0.8
0.3*VCC
-4
VCC =2.3V~2.7V
VCC =3.0V~3.6V
VCC =4.5V~5.5V
VCC=1.65V
VCC=2.3V
VIL
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
ns/V
ns/V
ns/V
°C
-8
High-level Output Current
Low-level Output Current
IOH
VCC=3.0V
-16
-24
-32
4
VCC=3.0V
VCC=4.5V
VCC=1.65V
VCC=2.3V
8
IOL
VCC=3.0V
16
VCC=3.0V
24
VCC=4.5V
32
VCC=1.65V~1.95V, 2.3V~2.7V
20
Input Transition Rise or Fall
Rate
Δt/Δv
VCC=3.0V~3.6V
VCC=4.5V~5.5V
10
5
Operating Temperature
TA
-40
85
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ELECTRICAL CHARACTERISTICS (TA =25°C , unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
VCC-0.1
1.2
TYP
MAX UNIT
V
CC =1.65V~5.5V, IOH=-100μA
VCC =1.65V, IOH=-4mA
VCC =2.3V, IOH=-8mA
VCC =3.0V, IOH=-16mA
VCC =3.0V, IOH=-24mA
VCC =4.5V, IOH=-32mA
VCC =1.65V~5.5V, IOH=-100μA
VCC =1.65V, IOH=4mA
VCC =2.3V, IOH=8mA
1.9
High-Level Output Voltage
Low-Level Output Voltage
VOH
V
2.4
2.3
3.8
0.1
0.45
0.3
V
VOL
VCC =3.0V, IOH=16mA
VCC =3.0V, IOH=24mA
VCC =4.5V, IOH=32mA
0.4
0.55
0.55
Input Leakage Current
II(LEAK) VCC =0V~5.5V, VIN=5.5V or GND
IOFF VCC =0V, VIN or VOUT=5.5V
CC =1.65V ~ 5.5V, VIN=5.5V or
±10
±10
μA
μA
Power OFF Leakage Current
V
Quiescent Supply Current
IQ
GND OUT=0
10
μA
I
VCC =3V~5.5V, One input at
CC-0.6V, other inputs at VCC or
GND
Additional Quiescent Supply
Current
ΔIQ
V
500
μA
Input Capacitance
CIN
VCC =3.3V, VIN=VCC or GND
4
pF
DYNAMIC CHARACTERISTICS (TA =25°C , unless otherwise specified)
PARAMETER
SYMBOL
Conditions
MIN
TYP
MAX UNIT
160
MHZ
fclock Clock frequency
Pulse duration
VCC=1.8V±0.15V
VCC=2.5V±0.2V
VCC=3.3V±0.3V
VCC=5V±0.5V
2.5
2.5
2.5
2.5
2.2
1.4
1.3
1.2
2.6
1.4
1.3
1.2
0.3
0.4
1
ns
tw
VCC=1.8V±0.15V
VCC=2.5V±0.2V
VCC=3.3V±0.3V
VCC=5V±0.5V
Data in high
Data in low
tsu
th
ns
ns
Setup time before CLK ↑
VCC=1.8V±0.15V
VCC=2.5V±0.2V
VCC=3.3V±0.3V
VCC=5V±0.5V
VCC=1.8V±0.15V,
VCC=2.5V±0.2V
VCC=3.3V±0.3V
VCC=5V±0.5V
Hold time ,data after CLK ↑
0.5
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SWITCHING CHARACTERISTIC (Input: tR, tF≤2.5ns; PRR≤1MHz)
See Fig. 1 and Fig. 2 for test circuit and waveforms.
PARAMETER
SYMBOL
fMAX
TEST CONDITIONS
VCC =1.65V~5.5V
CC =1.65V~1.95V,CL=15pF
MIN
160
2.5
1.2
1.0
0.8
3.9
2.0
1.7
1.0
TYP
MAX UNIT
MHz
Maximum clock pulse frequency
V
9.1
VCC =2.3V~2.7V,CL=15pF
VCC =3.0V~3.6V,CL=15pF
VCC =4.5V~5.5V,CL=15pF
6.0
ns
Propagation delay from input
(CLK) to output(Q)
tPLH/tPHL
4.0
3.8
9.9
VCC =1.65V~1.95V,CL=30pF
VCC =2.3V~2.7V,CL=30pF
VCC =3.0V~3.6V,CL=50pF
VCC =4.5V~5.5V,CL=50pF
7.0
ns
Propagation delay from input
(CLK) to output(Q)
tPLH/tPHL
5.0
4.5
OPERATING CHARACTERISTICS (TA =25°C , unless otherwise specified)
PARAMETER
Power Dissipation Capacitance
SYMBOL
Cpd
TEST CONDITIONS
VCC=3.3V, f=10MHz
MIN
TYP
27
MAX UNIT
pF
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TEST CIRCUIT AND WAVEFORMS
From Output
CL
RL
TEST CIRCUIT
Fig.1 Load circuitry for switching times.
VCC
VIN
tR,/tF
VM
CL
RL
15pF
30pF
15pF
30pF
15pF
50pF
15pF
50pF
1MΩ
1KΩ
1MΩ
500Ω
1MΩ
500Ω
1MΩ
500Ω
1.8V±0.15V
VCC
≤2ns
VCC/2
2.5V±0.2V
3.3V±0.3V
5V±0.5V
VCC
3 V
VCC
≤2ns
VCC/2
1.5V
≤2.5ns
≤2.5ns
VCC/2
Fig. 2 Propagation delay from input to output and input voltage waveforms.
Note: 1. CL includes probe and jig capacitance.
2. All input pulses are supplied by generators having the following characteristics: PRR ≤10MHz, Zo = 50Ω.
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CMOS IC
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
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