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參數(shù)資料
| 型號(hào)： | SN55138W |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 通用總線功能 |
| 英文描述： | QUADRUPLE BUS TRANSCEIVERS |
| 中文描述： | 翻兩番總線收發(fā)器 |
| 文件頁(yè)數(shù)： | 5/13頁(yè) |
| 文件大小： | 243K |
| 代理商： | SN55138W |
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SN55138, SN75138
QUADRUPLE BUS TRANSCEIVERS
SLLS079B – SEPTEMBER 1973 – REVISED MAY 1995
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
RL
VCC
Test Point
(see Note B)
CL
VOLTAGE WAVEFORMS
Driver
Output
Input
Strobe
See Note D
Input
Driver
From Output
Under Test
VOL
VOH
tPHL
tPLH
2.5 V
2.5 V
0 V
3 V
1.5 V
1.5 V
TEST CIRCUIT
NOTES: A. Input pulses are supplied by generators having the following characteristics: tw = 100 ns, PRR
≤
1 MHz, tr
≤
10 ns, tf
≤
10 ns,
ZO
≈
50
.
B. CL includes probe and jig capacitance.
C. All diodes are 1N916 or 1N3064.
D. When testing driver input (solid line) strobe must be low; when testing strobe input (dashed line) driver input must be high.
Figure 1. Propagation Delay Times From Data and Strobe Inputs
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