MAX1487E Ver la hoja de datos (PDF) - Maxim Integrated
Número de pieza
componentes Descripción
Fabricante
MAX1487E
Maxim Integrated
MAX1487E Datasheet PDF : 16 Pages
| |||
±15kV ESD-Protected, Slew-Rate-Limited,
Low-Power, RS-485/RS-422 Transceivers
SWITCHING CHARACTERISTICS—MAX481E/MAX485E, MAX490E/MAX491E, MAX1487E
(continued)
(VCC = 5V ±5%, TA = TMIN to TMAX, unless otherwise noted.) (Notes 1, 2)
PARAMETER
SYMBOL
Driver Enable from Shutdown to
Output High (MAX481E)
tZH(SHDN)
CONDITIONS
Figures 11 and 13, CL = 100pF, S2 closed
MIN TYP MAX UNITS
45
100
ns
Driver Enable from Shutdown to
Output Low (MAX481E)
tZL(SHDN)
Figures 11 and 13, CL = 100pF, S1 closed
45
100
ns
Receiver Enable from Shutdown
to Output High (MAX481E)
tZH(SHDN)
Figures 9 and 15, CL = 15pF, S2 closed,
A - B = 2V
225 1000
ns
Receiver Enable from Shutdown
to Output Low (MAX481E)
tZL(SHDN)
Figures 9 and 15, CL = 15pF, S1 closed,
B - A = 2V
225 1000
ns
SWITCHING CHARACTERISTICS—MAX483E, MAX487E/MAX488E/MAX489E
(VCC = 5V ±5%, TA = TMIN to TMAX, unless otherwise noted.) (Notes 1, 2)
PARAMETER
Driver Input to Output
Driver Output Skew to Output
SYMBOL
tPLH
tPHL
tSKEW
CONDITIONS
Figures 10 and 12, RDIFF = 54Ω,
CL1 = CL2 = 100pF
Figures 10 and 12, RDIFF = 54Ω,
CL1 = CL2 = 100pF
MIN TYP MAX
250 800 2000
250 800 2000
20
800
Driver Rise or Fall Time
tR, tF
Figures 10 and 12, RDIFF = 54Ω,
CL1 = CL2 = 100pF
250
2000
Driver Enable to Output High
tZH
Driver Enable to Output Low
tZL
Driver Disable Time from Low
tLZ
Driver Disable Time from High
tHZ
tPLH
Receiver Input to Output
tPHL
I tPLH - tPHL I Differential
Receiver Skew
tSKD
Receiver Enable to Output Low
tZL
Receiver Enable to Output High tZH
Receiver Disable Time from Low tLZ
Receiver Disable Time from High
tHZ
Maximum Data Rate
fMAX
Time to Shutdown
tSHDN
Driver Enable from Shutdown to
Output High
tZH(SHDN)
Driver Enable from Shutdown to
Output Low
tZL(SHDN)
Receiver Enable from Shutdown
to Output High
tZH(SHDN)
Receiver Enable from Shutdown
to Output Low
tZL(SHDN)
Figures 11 and 13, CL = 100pF, S2 closed
Figures 11 and 13, CL = 100pF, S1 closed
Figures 11 and 13, CL = 15pF, S1 closed
Figures 11 and 13, CL = 15pF, S2 closed
Figures 10 and 14, RDIFF = 54Ω,
CL1 = CL2 = 100pF
Figures 10 and 14, RDIFF = 54Ω,
CL1 = CL2 = 100pF
Figures 9 and 15, CRL = 15pF, S1 closed
Figures 9 and 15, CRL = 15pF, S2 closed
Figures 9 and 15, CRL = 15pF, S1 closed
Figures 9 and 15, CRL = 15pF, S2 closed
tPLH, tPHL < 50% of data period
MAX483E/MAX487E (Note 5)
MAX483E/MAX487E, Figures 11 and 13,
CL = 100pF, S2 closed
MAX483E/MAX487E, Figures 11 and 13,
CL = 100pF, S1 closed
MAX483E/MAX487E, Figures 9 and 15,
CL = 15pF, S2 closed
MAX483E/MAX487E, Figures 9 and 15,
CL = 15pF, S1 closed
250
2000
250
2000
300
3000
300
3000
250
2000
250
2000
100
25
50
25
50
25
50
25
50
250
50
200 600
2000
2000
2500
2500
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
kbps
ns
ns
ns
ns
ns
4 _______________________________________________________________________________________
Share Link: