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SP488 数据表(PDF) 5 Page - Sipex Corporation

部件名 SP488
功能描述  Quad RS-485/RS-422 Line Receivers
PDF  6 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  SIPEX [Sipex Corporation]
网页  http://www.sipex.com
标志 SIPEX - Sipex Corporation

SP488 数据表(HTML) 5 Page - Sipex Corporation

  SP488 Datasheet HTML 1Page - Sipex Corporation SP488 Datasheet HTML 2Page - Sipex Corporation SP488 Datasheet HTML 3Page - Sipex Corporation SP488 Datasheet HTML 4Page - Sipex Corporation SP488 Datasheet HTML 5Page - Sipex Corporation SP488 Datasheet HTML 6Page - Sipex Corporation  
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5
SP488/489
Quad RS-485/RS-422 Line Receivers
© Copyright 2000 Sipex Corporation
AC PARAMETERS
V
CC = 5V±5%; typicals at 25°C; 0°C ≤ TA ≤ +70°C unless otherwise noted.
PARAMETER
MIN.
TYP.
MAX.
UNIT
CONDITIONS
PROPAGATION DELAY
Receiver Input to Output
C
L = 15pF; Figure 1, 3
Low to HIGH (tPLH)
120
250
ns
High to LOW (tPH
L)
120
250
ns
Differential Receiver Skew (t
SKD)13
ns
Receiver Rise Time (t
R)
10% to 90%
SP488
30
70
ns
SP489
30
70
ns
Receiver Fall Time (t
F)
90% to 10%
SP488
20
40
ns
SP489
20
40
ns
RECEIVER ENABLE
To Output HIGH
70
150
ns
C
L = 15pF; Figures 2 and 4
(S2 closed)
To Output LOW
80
200
ns
CL = 15pF;
Figures 2 and 4
(S1 closed)
RECEIVER DISABLE
From Output LOW
70
150
ns
CL = 15pF;
Figures 2 and 4
(S1 closed)
From Output HIGH
70
150
ns
CL = 15pF;
Figures 2 and 4
(S2 closed)
Figure 4. Receiver Enable/Disable Timing
3V
0V
5V
VOH
0V
Output normally low
F = 1MHZ: tr < 10ns: tf < 10ns
tZL
tLZ
EN
VOL
1.5V
1.5V
1.5V
0.5V
1.5V
0.5V
Output normally high
RO
tZH
RO
tHZ
Figure 3. Receiver Propagation Delays
F = 1MHZ: tr < 10ns: tf < 10ns
tPHL
tPLH
VOL
0V
0V
1.5V
RO
VOH
1.5V
–VOD
+VOD
Input A–B



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