參數(shù)資料
型號(hào)： 8339
廠商： 意法半導(dǎo)體
英文描述： 【15KV ESD PROTECTED, LOW POWER RS-485/RS-422 TRANSCEIVER
中文描述： 【15KV靜電保護(hù)，低功耗RS-485/RS-422收發(fā)器
文件頁數(shù)： 4/13頁
文件大?。?/td> 303K
代理商： 8339
ST485E
4/13
DRIVER SWITCHING CHARACTERISTICS
(V
CC
= 5V
±
5%, T
A
= T
MIN
to T
MAX
, unless otherwise specified. Typical values are referred to T
A
= 25°C)
(See Note 1)
Note 1: All currents into device pins are positive; all cuttents out of device pins are negative; all voltages are referenced to device ground
unless specified.
RECEIVER SWITCHING CHARACTERISTICS
(V
CC
= 5V
±
5%, T
A
= T
MIN
to T
MAX
, unless otherwise specified. Typical values are referred to T
A
= 25°C)
(See Note 1)
Note 1: All currents into device pins are positive; all cuttents out of device pins are negative; all voltages are referenced to device ground
unless specified.
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
t
PLH
t
PHL
t
SK
Propagation Delay Input to
Output
R
DIFF
= 54
(See Fig. 3 and 5)
R
DIFF
= 54
(See Fig. 3 and 5)
R
DIFF
= 54
(See Fig. 3 and 5)
C
L
= 100pF
(See Fig. 4 and 6)
C
L
= 100pF
(See Fig. 4 and 6)
C
L
= 15pF
(See Fig. 4 and 6)
C
L
= 15pF
(See Fig. 4 and 6)
C
L1
= C
L2
= 100pF
25
45
ns
Output Skew to Output
C
L1
= C
L2
= 100pF
2
5
ns
t
TLH
t
THL
t
PZH
Rise or Fall Time
C
L1
= C
L2
= 100pF
15
40
ns
Output Enable Time
S2 = Closed
35
50
ns
t
PZL
Output Enable Time
S1 = Closed
25
40
ns
t
PLZ
Output Disable Time
S1 = Closed
25
40
ns
t
PHZ
Output Disable Time
S2 = Closed
35
50
ns
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
t
PLH
t
PHL
t
SKD
Propagation Delay Input to
Output
R
DIFF
= 54
(See Fig. 3 and 7)
R
DIFF
= 54
(See Fig. 3 and 7)
C
RL
= 15pF
(See Fig. 2 and 8)
C
RL
= 15pF
(See Fig. 2 and 8)
C
RL
= 15pF
(See Fig. 2 and 8)
C
RL
= 15pF
(See Fig. 2 and 8)
C
L1
= C
L2
= 100pF
110
130
ns
Differential Receiver Skew
C
L1
= C
L2
= 100pF
5
10
ns
t
PZH
Output Enable Time
S2 = Closed
11
35
ns
t
PZL
Output Enable Time
S1 = Closed
13
35
ns
t
PLZ
Output Disable Time
S1 = Closed
13
35
ns
t
PHZ
Output Disable Time
S2 = Closed
11
35
ns
f
MAX
Maximum Data Rate
5
Mbps
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