參數(shù)資料
型號： MAX3140EEI
廠商： Maxim Integrated Products
文件頁數(shù)： 32/36頁
文件大?。?/td> 0K
描述： IC UART SPI RS485/422 28-QSOP
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 50
特點： 收發(fā)器
FIFO's： 8 字節(jié)
規(guī)程： RS232，RS485
電源電壓： 4.75 V ~ 5.25 V
帶IrDA 編碼器/解碼器： 是
帶故障啟動位檢測功能： 是
帶CMOS： 是
安裝類型： 表面貼裝
封裝/外殼： 28-QSOP
供應(yīng)商設(shè)備封裝： 28-QSOP
包裝： 管件
MAX3140
SPI/MICROWIRE-Compatible UART with Integrated
True Fail-Safe RS-485/RS-422 Transceivers
_______________________________________________________________________________________
5
SWITCHING CHARACTERISTICS—SRL = Unconnected
(VCC = +5V ±5%, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5V and TA = +25°C.)
500
2030
2600
tDPHL
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
Driver Disable Time from Low
tDLZ
100
ns
Driver Enable to Output Low
tDZL
3500
ns
Driver Enable to Output High
tDZH
3500
ns
Maximum Data Rate
fMAX
115
kbps
Driver Disable Time from High
tDHZ
100
ns
Receiver Input to Output
tRPLH,
tRPHL
127
200
ns
|tRPLH - tRPHL| Differential
Receiver Skew
tRSKD
3±30
ns
Receiver Enable to Output Low
tRZL
20
50
ns
Driver Output Skew
|tDPLH - tDPHL|
Driver Input to Output
tDPLH
500
2030
2600
ns
tDSKEW
-3
±200
ns
Driver Rise or Fall Time
tDR, tDF
667
1320
2500
ns
Receiver Enable to Output High
tRZH
20
50
ns
Receiver Disable Time from Low
tRLZ
20
50
ns
Receiver Disable Time from
High
tRHZ
20
50
ns
Time to Shutdown
tSHDN
50
200
600
ns
Driver Enable from Shutdown to
Output High
tDZH(SHDN)
6000
ns
Driver Enable from Shutdown to
Output Low
tDZL(SHDN)
6000
ns
Receiver Enable from Shutdown
to Output High
tRZH(SHDN)
3500
ns
Receiver Enable from Shutdown
to Output Low
tRZL(SHDN)
3500
ns
CONDITIONS
Figures 2 and 8, CL = 100pF, S2 closed
Figures 4 and 6, CL = 15pF, S1 closed
Figures 2 and 8, CL = 100pF, S1 closed
Figures 4 and 6, CL = 100pF, S1 closed
Figures 4 and 6, CL = 100pF, S2 closed
Figures 4 and 6, CL = 15pF, S2 closed
Figures 7 and 9,
|VID| ≥ 2.0V,
rise and fall time of VID
≤ 15ns
Figures 2 and 8, CL = 100pF, S2 closed
(Note 5)
Figures 7 and 9,
|VID| ≥ 2.0V,
rise and fall time of VID
≤ 15ns
Figures 2 and 8, CL = 100pF, S1 closed
Figures 4 and 6, CL = 15pF, S2 closed
Figures 4 and 6, CL = 15pF, S1 closed
Figures 2 and 8, CL = 100pF, S2 closed
Figures 3 and 5, RDIFF = 54
Ω,
CL1 = CL2 = 100pF
Figures 2 and 8, CL = 100pF, S1 closed
Figures 3 and 5, RDIFF = 54
Ω,
CL1 = CL2 = 100pF
Figures 3 and 5, RDIFF = 54
Ω,
CL1 = CL2 = 100pF
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