1 µA S u p p ly Cu rre n t , 1 Mb p s , 3 .0 V t o 5 .5 V,
RS -2 3 2 Tra n s c e ive rs w it h Au t o S h u t d o w n P lu s
–7/MAX3245
ELECTRICAL CHARACTERISTICS (continued)
(V = +3V to +5.5V, C1–C4 = 0.1µF, tested at 3.3V ±10%; C = 0.047µF, C2–C4 = 0.33µF, tested at 5.0V ±10%; T = T
to T
,
CC
L
A
MIN
MAX
unless otherwise noted. Typical values are at T = +25°C.)
A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
TRANSMITTER OUTPUTS
All transmitter outputs loaded with 3kΩ to
ground
Output Voltage Swing
±5
±5.4
10M
V
Output Resistance
V
CC
= V+ = V- = 0, transmitter outputs = ±2V
300
Ω
Output Short-Circuit Current
±60
±25
mA
V
= 0 or 3V to 5.5V, V
= ±12V,
CC
OUT
Output Leakage Current
µA
Transmitters disabled
MOUSE DRIVEABILITY (MAX3244/MAX3245)
T1IN = T2IN = GND, T3IN = V
,
CC
T3OUT loaded with 3kΩ to GND,
T1OUT and T2OUT loaded with
2.5mA each
Transmitter Output Voltage
±5
V
AUTOSHUTDOWN PLUS (FORCEON = GND, FORCEOFF = V
)
CC
Positive threshold
Negative threshold
2.7
Receiver Input Threshold to
INVALID Output High
Figure 4a
Figure 4a
V
V
-2.7
-0.3
Receiver Input Threshold to
INVALID Output Low
0.3
0.4
INVALID, READY
(MAX3224–MAX3227)
Output Voltage Low
I
= -1.6mA
V
V
OUT
INVALID, READY
(MAX3224–MAX3227)
I
= -1.0mA
V
- 0.6
OUT
CC
Output Voltage High
Receiver Positive or Negative
Threshold to INVALID High
t
V
= 5V, Figure 4b
= 5V, Figure 4b
CC
1
µs
µs
INVH
CC
Receiver Positive or Negative
Threshold to INVALID Low
t
V
30
INVL
Receiver or Transmitter Edge to
Transmitters Enabled
t
V
= 5V, Figure 5b (Note 2)
= 5V, Figure 5b (Note 2)
100
30
µs
WU
CC
Receiver or Transmitter Edge to
Transmitters Shutdown
tAUTOSHDN
V
CC
15
60
sec
_______________________________________________________________________________________
3
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
