MAX485 데이터 시트보기 (PDF) - Unspecified
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MAX485 Datasheet PDF : 6 Pages
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MAX485
DC ELECTRICAL CHARACTERISTICS (continued)
(VCC = 5V ±5%, TA = TMIN to TMAX, unless otherwise noted.) (Notes 1, 2)
PARAMETER
No-Load Supply Current
(Note 3)
Driver Short-Circuit Current,
VO = High
Driver Short-Circuit Current,
VO = Low
Receiver Short-Circuit Current
SYMBOL
CONDITIONS
ICC
DE = VCC
RE = 0V or VCC
DE = 0V
IOSD1 -7V ≤ VO ≤ 12V (Note 4)
IOSD2 -7V ≤ VO ≤12V (Note 4)
IOSR
0V ≤ VO ≤ VCC
MIN
TY
P
MAX UNITS
500 900
300 500 µA
35
250 mA
35
250 mA
7
95 mA
SWITCHING CHARACTERISTICS
(VCC = 5V ±5%, TA = TMIN to TMAX, unless otherwise noted.) (Notes 1, 2)
PARAMETER
Driver Input to Output
Driver Output Skew to Output
Driver Enable to Output High
Driver Enable to Output Low
Driver Disable Time from Low
Driver Disable Time from High
| tPLH - tPHL | Differential
Receiver Skew
Receiver Enable to Output Low
Receiver Enable to Output High
Receiver Disable Time from
Low
Receiver Disable Time from
High
Maximum Data Rate
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
tPLH
RDIFF = 54Ω
10 30 60 ns
tPHL
CL1 = CL2 = 100pF
10 30 60
tSKEW
RDIFF = 54Ω, CL1 = CL2 = 100pF
5
10 ns
tZH
CL= 100pF, S2 closed
tZL
CL= 100pF, S1 closed
tLZ
CL= 15pF, S1 closed
tHZ
CL= 15pF, S2 closed
tSKD
RDIFF = 54Ω
CL1 = CL2 = 100pF
tZL
CRL = 15pF, S1 closed
40 70 ns
40 70 ns
40 70 ns
40 70 ns
13
ns
20 50 ns
tZH
CRL = 15pF, S2 closed
20 50 ns
tLZ
CRL = 15pF, S1 closed
20 50 ns
tHZ
CRL = 15pF, S2 closed
20 50 ns
fMAX
2.5
Mbps
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