(V
參數(shù)資料
型號(hào)： MAX1487ESA+T
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 11/17頁(yè)
文件大小： 0K
描述： IC TXRX RS485/RS422 8-SOIC
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 2,500
類型： 收發(fā)器
驅(qū)動(dòng)器/接收器數(shù)： 1/1
規(guī)程： RS422，RS485
電源電壓： 4.75 V ~ 5.25 V
安裝類型： 表面貼裝
封裝/外殼： 8-SOIC（0.154"，3.90mm 寬）
供應(yīng)商設(shè)備封裝： 8-SOIC
包裝： 帶卷 (TR)
Low-Power, Slew-Rate-Limited
RS-485/RS-422 Transceivers
SWITCHING CHARACTERISTICS—MAX481/MAX485, MAX490/MAX491, MAX1487
(VCC = 5V ±5%, TA = TMIN to TMAX, unless otherwise noted.) (Notes 1, 2)
DC ELECTRICAL CHARACTERISTICS (continued)
(VCC = 5V ±5%, TA = TMIN to TMAX, unless otherwise noted.) (Notes 1, 2)
mA
795
0V
≤ VO ≤ VCC
IOSR
Receiver Short-Circuit Current
mA
35
250
-7V
≤ VO ≤12V (Note 4)
IOSD2
Driver Short-Circuit Current,
VO = Low
mA
35
250
-7V
≤ VO ≤12V (Note 4)
IOSD1
Driver Short-Circuit Current,
VO = High
MAX1487,
RE = 0V or VCC
250
400
350
650
ns
10
30
60
tPHL
Driver Rise or Fall Time
Figures 6 and 8, RDIFF = 54
Ω, CL1 = CL2 = 100pF
ns
MAX490M, MAX491M
MAX490C/E, MAX491C/E
20
90
150
MAX481, MAX485, MAX1487
MAX490M, MAX491M
MAX490C/E, MAX491C/E
MAX481, MAX485, MAX1487
Figures 6 and 8, RDIFF = 54
Ω,
CL1 = CL2 = 100pF
MAX481 (Note 5)
Figures 5 and 11, CRL = 15pF, S2 closed
Figures 5 and 11, CRL = 15pF, S1 closed
Figures 5 and 11, CRL = 15pF, S2 closed
Figures 5 and 11, CRL = 15pF, S1 closed
Figures 6 and 10, RDIFF = 54
Ω,
CL1 = CL2 = 100pF
Figures 6 and 8,
RDIFF = 54
Ω,
CL1 = CL2 = 100pF
Figures 6 and 10,
RDIFF = 54
Ω,
CL1 = CL2 = 100pF
CONDITIONS
ns
510
tSKEW
ns
50
200
600
tSHDN
Time to Shutdown
Mbps
2.5
fMAX
Maximum Data Rate
ns
20
50
tHZ
Receiver Disable Time from High
ns
10
30
60
tPLH
20
50
tLZ
Receiver Disable Time from Low
ns
20
50
tZH
Driver Input to Output
Receiver Enable to Output High
ns
20
50
tZL
Receiver Enable to Output Low
20
90
200
ns
13
40
70
tHZ
tSKD
Driver Disable Time from High
| tPLH - tPHL | Differential
Receiver Skew
ns
40
70
tLZ
Driver Disable Time from Low
ns
40
70
tZL
Driver Enable to Output Low
315
40
ns
515
25
ns
315
40
tR, tF
20
90
200
Driver Output Skew to Output
tPLH, tPHL
Receiver Input to Output
40
70
tZH
Driver Enable to Output High
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
CONDITIONS
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
230
400
300
500
MAX481/MAX485,
RE = 0V or VCC
500
900
MAX490/MAX491,
DE, DI, RE = 0V or VCC
300
500
MAX488/MAX489,
DE, DI, RE = 0V or VCC
120
250
DE = VCC
300
500
DE = 0V
DE = VCC
DE = 0V
A
MAX481/483/487, DE = 0V, RE = VCC
0.1
10
ISHDN
Supply Current in Shutdown
120
250
ICC
No-Load Supply Current
(Note 3)
DE = 5V
DE = 0V
MAX483
MAX487
MAX483/MAX487,
RE = 0V or VCC
Figures 7 and 9, CL = 100pF, S2 closed
Figures 7 and 9, CL = 100pF, S1 closed
Figures 7 and 9, CL = 15pF, S1 closed
Figures 7 and 9, CL = 15pF, S2 closed
A
MAX481/MAX483/MAX485
MAX487–MAX491/MAX1487
Maxim Integrated
3
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