參數(shù)資料
型號: SN74LV1G79YEPR
廠商: Texas Instruments, Inc.
英文描述: SINGLE POSITIVE EDGE TRIGGERED D-TYPE FLIP FLOP
中文描述: 單上升沿觸發(fā)的D型觸發(fā)器
文件頁數(shù): 7/15頁
文件大?。?/td> 357K
代理商: SN74LV1G79YEPR
SCES220N APRIL 1999 REVISED SEPTEMBER 2003
7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
VM
th
tsu
From Output
Under Test
CL
(see Note A)
LOAD CIRCUIT
S1
VLOAD
Open
GND
RL
RL
Data Input
Timing Input
VI
0 V
VI
0 V
0 V
tw
Input
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
INVERTING AND NONINVERTING OUTPUTS
VOLTAGE WAVEFORMS
PULSE DURATION
tPLH
tPHL
tPHL
tPLH
VOH
VOH
VOL
VOL
VI
0 V
Input
Output
Waveform 1
S1 at VLOAD
(see Note B)
Output
Waveform 2
S1 at GND
(see Note B)
VOL
VOH
tPZL
tPZH
tPLZ
tPHZ
VLOAD/2
0 V
VOL + V
VOH V
0 V
VI
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
LOW- AND HIGH-LEVEL ENABLING
Output
Output
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
Open
VLOAD
GND
TEST
S1
NOTES: A. CL includes probe and jig capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
C. All input pulses are supplied by generators having the following characteristics: PRR
10 MHz, ZO = 50
.
D. The outputs are measured one at a time with one transition per measurement.
E. tPLZ and tPHZ are the same as tdis.
F. tPZL and tPZH are the same as ten.
G. tPLH and tPHL are the same as tpd.
H. All parameters and waveforms are not applicable to all devices.
Output
Control
VM
VM
VM
VM
VM
VM
VM
VM
VM
VM
VM
VM
VI
VM
VM
1.8 V
±
0.15 V
2.5 V
±
0.2 V
3.3 V
±
0.3 V
5 V
±
0.5 V
1 k
500
500
500
VCC
RL
2
×
VCC
2
×
VCC
6 V
2
×
VCC
VLOAD
CL
30 pF
30 pF
50 pF
50 pF
0.15 V
0.15 V
0.3 V
0.3 V
V
VCC
VCC
3 V
VCC
VI
VCC/2
VCC/2
1.5 V
VCC/2
VM
tr/tf
2 ns
2 ns
2.5 ns
2.5 ns
INPUTS
Figure 2. Load Circuit and Voltage Waveforms
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