±15kV ESD-Prote c te d, EMC-Com plia nt, 230kbps
RS-232 Se ria l Port for Mothe rboa rds /De s ktop PCs
MAX3185
ELECTRICAL CHARACTERISTICS (continued)
(V = +4.5V to +5.5V, V = +10.8V to +13.2V, V = -10.8V to -13.2V, T = T
to T , unless otherwise noted. Typical values
MAX
CC
DD
SS
A
MIN
are at T = +25°C.)
A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
ESD CHARACTERISTICS
Human Body Model
±15
±8
ESD Protection
IEC1000-4-2 (Contact Discharge)
IEC1000-4-2 (Air-Gap Discharge)
kV
±15
TIMING CHARACTERISTICS
Transmitter Output
Propagation Delay, Low to High
V
= 12V, V = -12V, R = 3kΩ,
DD SS L
t
t
4
µs
µs
µs
PLHT
PHLT
C = 1000pF, T = +25°C
L A
Transmitter Output
Propagation Delay, High to Low
V
= 12V, V = -12V, R = 3kΩ,
DD SS L
4
C = 1000pF, T = +25°C
L A
Transmitter Propagation Delay
V
= 12V, V = -12V, R = 3kΩ,
SS L
DD
t
0.4
30
30
4.0
4.0
0.4
SKT
Skew,
t
- t
C = 1000pF, T = +25°C
L A
PLHT PHLT
|
|
V
= 12V, V = -12V,
SS
= 3kΩ to 7kΩ,
DD
C
= 150pF to
L
4
8
R
L
2500pF
Transition Output Slew Rate
SR
measured from +3V to -3V
or -3V to +3V, Figure 3,
T
A
V/µs
C
= 50pF to
L
1000pF
= +25°C
Receiver Output
Propagation Delay, Low to High
t
t
V
CC
= 5V, C = 50pF, T = +25°C
µs
µs
µs
PLHR
PHLR
L
A
Receiver Output
Propagation Delay, High to Low
V
CC
= 5V, C = 50pF, T = +25°C
L A
Receiver Propagation Delay
t
V
= 5V, C = 50pF, T = +25°C
SKR
DR
CC L A
Skew,
t
- t
PLHR PHLR
|
|
C
= 50pF to
L
V
= 5V, V = 12V,
DD
= -12V,
CC
120
2500pF
V
SS
Guaranteed Data Rate
Mouse Driveability
kbps
V
R
= 3kΩ to 7kΩ,
= +25°C
L
C
= 50pF to
L
230
T
A
1000pF
T3OUT = -5mA, T1OUT = T2OUT = +5mA
±7.5
_______________________________________________________________________________________
3
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
