MAX3440EASA(2010) データシートの表示（PDF） - Maxim Integrated
部品番号
コンポーネント説明
メーカー
MAX3440EASA
(Rev.:2010)
(Rev.:2010)
Maxim Integrated
MAX3440EASA Datasheet PDF : 19 Pages
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±15kV ESD-Protected, ±60V Fault-Protected,
10Mbps, Fail-Safe RS-485/J1708 Transceivers
SWITCHING CHARACTERISTICS (MAX3440E/MAX3442E/MAX3444E)
(VCC = +4.75V to +5.25V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5V and TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Driver Propagation Delay
tPLHA,
tPLHB
MAX3440E/MAX3442E,
Figure 3, RL = 54, CL = 50pF
MAX3444E, RDIFF = 60, CDIFF = 100pF
Driver Differential Propagation Delay
tDPLH,
tDPHL
Figure 4, RL = 54, CL = 50pF
Driver Differential Output
Transition Time
tLH,tHL Figure 4, RL = 54, CL = 50pF
200
2000 ns
2000 ns
2000 ns
Driver Output Skew
tSKEWAB,
tSKEWBA
RL = 54, CL = 50pF,
tSKEWAB = |tPLHA - tPHLB|,
tSKEWBA = |tPLHB - tPHLA|
350 ns
Differential Driver Output Skew
Maximum Data Rate
Driver Enable Time to Output High
Driver Disable Time from Output High
Driver Enable Time from Shutdown to
Output High
Driver Enable Time to Output Low
Driver Disable Time from Output Low
Driver Enable Time from Shutdown to
Output Low
Driver Time to Shutdown
Receiver Propagation Delay
Receiver Output Skew
Receiver Enable Time to Output High
Receiver Disable Time from Output
High
tDSKEW
RL = 54, CL = 50pF,
tDSKEW = |tDPLH - tDPHL|
fMAX
250
tPDZH Figure 5, RL = 500, CL = 50pF
tPDHZ Figure 5, RL = 500, CL = 50pF
tPDHS
Figure 5, RL = 500, CL = 50pF
(MAX3442E/MAX3444E)
tPDZL
tPDLZ
Figure 6, RL = 500, CL = 50pF
Figure 6, RL = 500, CL = 50pF
tPDLS
Figure 6, RL = 500, CL = 50pF
(MAX3442E/MAX3444E)
tSHDN RL = 500, CL = 50pF (MAX3442E/MAX3444E)
tRPLH,
tRPHL
Figure 7, CL = 20pF, VID = 2V, VCM = 0V
tRSKEW CL = 20pF, tRSKEW = |tRPLH - tRPHL|
tRPZH Figure 8, RL = 1k, CL = 20pF
tRPHZ Figure 8, RL = 1k, CL = 20pF
200 ns
2000
2000
kbps
ns
ns
4.2
μs
2000 ns
2000 ns
4.2
μs
800 ns
2000 ns
200 ns
2000 ns
2000 ns
Receiver Wake Time from Shutdown
Receiver Enable Time to Output Low
Receiver Disable Time from Output Low
Receiver Time to Shutdown
tRPWAKE
tRPZL
tRPLZ
tSHDN
Figure 8, RL = 1k, CL = 20pF
(MAX3442E/MAX3444E)
Figure 8, RL = 1k, CL = 20pF
Figure 8, RL = 1k, CL = 20pF
RL = 500, CL= 50pF
(MAX3442E/MAX3444E)
4.2
μs
2000 ns
2000 ns
800 ns
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