參數(shù)資料
型號(hào): MC34C86D
廠商: MOTOROLA INC
元件分類: 通用總線功能
英文描述: Quad EIA-422-A Line Receiver
中文描述: DUAL LINE RECEIVER, PDSO16
封裝: SOG-16
文件頁數(shù): 3/4頁
文件大小: 112K
代理商: MC34C86D
MC34C86
MOTOROLA
3
AC CHARACTERISTICS
(VCC = 4.5 to 5.5 V, TA = – 40 to + 85
°
C, unless otherwise stated)
Parameter
Symbol
Min
Typ
Max
Unit
Propagation Delay Input to Output, CL = 50 pF, VDIFF = 2.5 V
tPLH
tPHL
18
30
ns
Skew =
tPHL – tPLH
Propagation Delay Enable to Output
CL = 50 pF, RL = 1000
, VDIFF = 2.5 V
Skew
1
ns
tPLZ
tPHZ
12
ns
Propagation Delay Enable to Output
CL = 50 pF, RL = 1000
, VDIFF = 2.5 V
tPZL
tPZH
14
ns
AC TEST CIRCUIT AND SWITCHING TIME WAVEFORMS
Figure 1. Test Circuit
4.9 k
S1
VCC
OUTPUT
S2
CL = 49 pF
RL = 2 k
TEST
POINT
OUTPUT
0 V
tPHL
Figure 2. Propagation Delays
1.3 V
1.3 V
0 V
INPUT
– 2.5 V
tPLH
+ 2.5 V
S1 AND S2 CLOSED
Figure 3. Enable and Disable Times
OUTPUT A
1.3 V
tPHZ
OUTPUT B
50%
1.3 V
ENABLE INPUT
50%
VOL
VOH
tPZH
tPLZ
tPZL
3 V —
0 V
S1 OPEN
S2 CLOSED
S1 CLOSED
S2 CLOSED
S1 CLOSED
S2 OPEN
S1 CLOSED
S2 CLOSED
0.5 V
0.5 V
TYPICAL APPLICATIONS
Figure 4. Two–Wire Balanced Systems (EIA–422–A)
+
DATA
DATA
OUTPUT
ENABLE
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