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| 型号： | SNJ54AC573J |
| 厂商： | Texas Instruments, Inc. |
| 英文描述： | OCTAL D-TYPE TRANSPARENT LATCHES WITH 3-STATE OUTPUTS |
| 中文描述： | 八路?- 3型透明锁存态输出 |
| 文件页数： | 5/13页 |
| 文件大小： | 389K |
| 代理商： | SNJ54AC573J |
SCAS542D - OCTOBER 1995 REVISED OCTOBER 2003
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
50% VCC
50% VCC
50% VCC
50% VCC
VCC
VCC
0 V
0 V
th
tsu
VOLTAGE WAVEFORMS
Data Input
tPLH
tPHL
tPHL
tPLH
VOH
VOH
VOL
VOL
VCC
0 V
50% VCC
50% VCC
Input
Out-of-Phase
Output
In-Phase
Output
Timing Input
50% VCC
VOLTAGE WAVEFORMS
From Output
Under Test
CL = 50 pF
(see Note A)
LOAD CIRCUIT
S1
2
×
VCC
500
500
Output
Control
(low-level
enabling)
Output
Waveform 1
S1 at 2
×
VCC
(see Note B)
Output
Waveform 2
S1 at Open
(see Note B)
VOL
VOH
tPZL
tPZH
tPLZ
tPHZ
≈
VCC
0 V
50% VCC
VOL + 0.3 V
50% VCC
≈
0 V
Open
GND
VOLTAGE WAVEFORMS
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
Open
2
×
VCC
Open
TEST
S1
3 V
0 V
tw
VOLTAGE WAVEFORMS
Input
50% VCC
50% VCC
VOH 0.3 V
50% VCC
50% VCC
50% VCC
50% VCC
VCC
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
≤
1 MHz, ZO = 50
, tr
≤
2.5 ns, tf
≤
2.5 ns.
D. The outputs are measured one at a time with one input transition per measurement.
Figure 1. Load Circuit and Voltage Waveforms
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| SNJ54AC573W | 制造商:TI 制造商全称:Texas Instruments 功能描述:OCTAL D-TYPE TRANSPARENT LATCHES WITH 3-STATE OUTPUTS |
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