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參數(shù)資料
| 型號： | SN74LS17NSR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 門電路 |
| 英文描述： | LS SERIES, HEX 1-INPUT NON-INVERT GATE, PDSO14 |
| 封裝： | SOP-14 |
| 文件頁數(shù)： | 5/6頁 |
| 文件大小： | 84K |
| 代理商： | SN74LS17NSR |
The SN54LS07 and SN74LS17 are
obsolete and are no longer supplied.
SN54LS07, SN74LS07, SN74LS17
HEX BUFFERS/DRIVERS
WITH OPEN-COLLECTOR HIGH-VOLTAGE OUTPUTS
SDLS021B
–
MAY 1990
–
REVISED JANUARY 2002
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
tPHL
tPLH
tPLH
tPHL
LOAD CIRCUIT
FOR 3-STATE OUTPUTS
High-Level
Pulse
Low-Level
Pulse
VOLTAGE WAVEFORMS
PULSE DURATIONS
Input
Out-of-Phase
Output
(see Note D)
3 V
0 V
VOL
VOH
VOH
VOL
In-Phase
Output
(see Note D)
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
VCC
RL
Test
Point
From Output
Under Test
CL
(see Note A)
LOAD CIRCUIT
FOR OPEN-COLLECTOR OUTPUTS
LOAD CIRCUIT
FOR 2-STATE TOTEM-POLE OUTPUTS
(see Note B)
VCC
RL
From Output
Under Test
CL
(see Note A)
Test
Point
(see Note B)
VCC
RL
From Output
Under Test
CL
(see Note A)
Test
Point
5 k
NOTES: A. CL includes probe and jig capacitance.
B. All diodes are 1N3064 or equivalent.
C. 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.
D. S1 and S2 are closed for tPLH, tPHL, tPHZ, and tPLZ; S1 is open and S2 is closed for tPZH; S1 is closed and S2 is open for tPZL.
E. Phase relationships between inputs and outputs have been chosen arbitrarily for these examples.
F. All input pulses are supplied by generators having the following characteristics: PRR
≤
1 MHz, ZO
≈
50
, tr
≤
1.5 ns, tf
≤
2.6 ns.
G. The outputs are measured one at a time with one input transition per measurement.
S1
S2
tPHZ
tPLZ
tPZL
tPZH
3 V
3 V
0 V
0 V
th
tsu
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
Timing
Input
Data
Input
3 V
0 V
Output
Control
(low-level
enabling)
Waveform 1
(see Notes C
and D)
Waveform 2
(see Notes C
and D)
≈
1.5 V
VOH
–
0.5 V
VOL + 0.5 V
≈
1.5 V
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES, 3-STATE OUTPUTS
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
tw
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
VOL
VOH
Figure 1. Load Circuits and Voltage Waveforms
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