7
FN4876.10
March 1, 2006
MOUSE DRIVEABILITY (ICL3244 Only)
Transmitter Output Voltage
(See Figure 11)
T1IN = T2IN = GND, T3IN = VCC, T3OUT Loaded with 3k to
GND, T1OUT and T2OUT Loaded with 2.5mA Each
Full
±5-
-
V
ENHANCED AUTOMATIC POWERDOWN (FORCEON = GND, FORCEOFF = VCC)
Receiver Input Thresholds to
INVALID High
See Figure 6
Full
-2.7
-
2.7
V
Receiver Input Thresholds to
INVALID Low
See Figure 6
Full
-0.3
-
0.3
V
INVALID, READY Output Voltage
Low
IOUT = 1.6mA
Full
-
0.4
V
INVALID, READY Output Voltage
High
IOUT = -1.0mA
Full
VCC-0.6
-
V
Receiver Positive or Negative
Threshold to INVALID High Delay
(tINVH)
ICL3238
25
-
0.1
-
s
All Others
25
-
1
-
s
Receiver Positive or Negative
Threshold to INVALID Low Delay
(tINVL)
ICL3238
25
-
50
-
s
All Others
25
-
30
-
s
Receiver or Transmitter Edge to
Transmitters Enabled Delay (tWU)
ICL3238, Note 5
25
-
25
-
s
All Others, Note 5
25
-
100
-
s
Receiver or Transmitter Edge to
Transmitters Disabled Delay
(tAUTOPWDN)
Note 5
Full
153060
sec
TIMING CHARACTERISTICS
Maximum Data Rate
RL = 3k, CL = 1000pF, One Transmitter Switching
Full
250
500
-
kbps
Receiver Propagation Delay
Receiver Input to Receiver
Output, CL = 150pF
tPHL
25
-
0.15
-
s
tPLH
25
-
0.15
-
s
Receiver Output Enable Time
Normal Operation (ICL3238/44 Only)
25
-
200
-
ns
Receiver Output Disable Time
Normal Operation (ICL3238/44 Only)
25
-
200
-
ns
Transmitter Skew
tPHL - tPLH
25
-
100
-
ns
Receiver Skew
tPHL - tPLH
25
-
50
-
ns
Transition Region Slew Rate
VCC = 3.3V,
RL = 3k to 7k,
Measured From 3V to -3V or -3V
to 3V
CL = 150pF to 1000pF
25
6
-
30
V/
s
CL = 150pF to 2500pF
25
4
8
30
V/
s
ESD PERFORMANCE
RS-232 Pins (TOUT, RIN)
Human Body Model
25
-
±15
-
kV
IEC61000-4-2 Contact Discharge
25
-
±8-
kV
IEC61000-4-2 Air Gap Discharge
25
-
±10
-
kV
All Other Pins
Human Body Model
25
-
±2.5
-
kV
NOTE:
4. An “edge” is defined as a transition through the transmitter or receiver input thresholds.
Electrical Specifications
Test Conditions: VCC = 3V to 5.5V, C1 - C4 = 0.1F (ICL3238: C1 - C4 = 0.22F @ VCC = 3V); Unless
Otherwise Specified. Typicals are at TA = 25°C (Continued)
PARAMETER
TEST CONDITIONS
TEMP
(°C)
MIN
TYP
MAX
UNITS
ICL3224, ICL3226, ICL3238, ICL3244