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参数资料
| 型号： | SN74AS241-1DW |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 总线收发器 |
| 英文描述： | AS SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO20 |
| 封装： | PLASTIC, SOP-20 |
| 文件页数： | 7/8页 |
| 文件大小： | 119K |
| 代理商： | SN74AS241-1DW |
SN54ALS241B, SN54AS241, SN74ALS241C, SN74AS241
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SDAS153C – DECEMBER 1982 – REVISED AUGUST 1994
7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
tPHZ
tPLZ
tPHL
tPLH
0.3 V
tPZL
tPZH
TEST
S1
Open
tPHL
tPZH
tPZL
Closed
Open
Closed
tPHZ
tPLZ
tPLH
tPHL
LOAD CIRCUIT FOR 3-STATE OUTPUTS
From Output
Under Test
Test Point
R1 = 500
S1
CL = 50 pF
(see Note A)
7 V
Open
1.3 V
3.5 V
0.3 V
th
tsu
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
Timing
Input
Data
Input
1.3 V
3.5 V
0.3 V
High-Level
Pulse
Low-Level
Pulse
tw
VOLTAGE WAVEFORMS
PULSE DURATION
Input
(see Note B)
Out-of-Phase
Output
1.3 V
3.5 V
0.3 V
VOL
VOH
VOL
Output
Control
Waveform 1
S1 Closed
(see Note C)
Waveform 2
S1 Open
(see Note C)
0 V
VOH
VOL
3.5 V
In-Phase
Output
0.3 V
tPLH
1.3 V
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES, 3-STATE OUTPUTS
SWITCH POSITION TABLE
R2 = 500
NOTES: A. CL includes probe and jig capacitance.
B. All input pulses are supplied by generators having the following characteristics: PRR
≤ 1 MHz, Zo = 50 , tr ≤ 2 ns, tf ≤ 2 ns.
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. The outputs are measured one at a time with one transition per measurement.
Figure 1. Load Circuit and Voltage Waveforms
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