Recommended Operating Conditions; Electrical Characteristics Other Pins; Pinout Specifications - Multitech SocketModem Cell MTSMC-L4G1 Device Manual

SPECIFICATIONS

Recommended Operating Conditions

Symbol
VCC
t , t
r f
Input transition rise
or fall rate

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

Pinout Specifications

Pin Signal Name
J24 –RESET
J25 USB VBUS
J26 GND
J27 USB DP
J28 USB DN
J33 –RTS
J34 –RXD
12
Applicable Signals VCC (V)
Positive DC Supply
Voltage
#RESET, #RTS, #TXD, 3.0 to 3.6
#DTR, USB_VBUS
4.5 to 5.5
VIL Min VIL Max
-- 0.8
-0.3 0.8
-- --
-- 0.8
-- 0.8
-- --
-- --
-- --
-- --
Logic Level
1
Voltage
3.3 – 5.0
3.3 – 5.0
GND
3.3
3.3
5.0
5.0
Minimum
3.3V
--
--
VIH Min VIH Max VOL Min
2.0 -- --
2.0 8.7 --
-- -- --
2 -- --
2 -- --
-- -- --
-- -- 0
-- -- --
-- -- --
In/Out
Input with 47KΩ
pull-up
Input with 47KΩ
pull-down
N/A
3.3V I/O
3.3V I/O
Input with 47KΩ
pull-down
Output with 47KΩ
pull-up
SocketModem
Maximum
5.0
10V
5V
VOL Max VOH Min VOH Max
-- --
-- --
-- --
0.3 2.8
0.3 2.8
-- --
0.45 2.85
-- --
-- --
Description
Device reset (active low)
USB power supply input
Ground
USB data
USB data
Request to send (active low)
Received data (active low)
®
Cell MTSMC-L4G1 Device Guide
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3.3
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