Absolute Maximum Rating; Electrical Characteristics Other Pins - Multitech SocketModem Device Manual

SPECIFICATIONS
Pin Signal Name
J33 -RTS
J34 -RXD
J35 -TXD
J36 -RI
Parameter
3.3 Volt Powered
Input Low Level
Input High Level
Output Low Level
Output High Level
5 Volt Powered
Input Low Level
Input High Level
Output Low Level
Output High Level

Absolute Maximum Rating

All models can run with an input voltage of either 3.3V or 5V. The maximum voltage on any signal pin equals the
input voltage.

Electrical Characteristics Other Pins

Pin Signal
Name
J24 -RESET
J25 USB VBUS
J26 GND
J27 USB DP
J28 USB DN
J41 GND
J58 -LED LINK
J61 VCC
J63 GND
16
Pin Signal Name
J37 -DSR
J38 -CTS
J39 -DCD
J40 -DTR
Minimum
0
1.5
0
2.35
0
2.3
0
3.7
VIL Min VIL Max VIH Min
-- 0.8 2.0
-0.3 0.8 2.0
-- -- --
-- 0.8 2
-- 0.8 2
-- -- --
-- -- --
-- -- --
-- -- --
Maximum
0.55
3.3
0.55
3.3
0.8
5
0.55
5
VIH Max VOL Min
-- --
8.7 --
-- --
-- --
-- --
-- --
-- 0
-- --
-- --
SocketModem
VOL Max VOH Min VOH Max
-- --
-- --
-- --
0.3 2.8
0.3 2.8
-- --
0.45 2.85
-- --
-- --
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3.3
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