Specifications

Chapter 8 – SocketModem GPRS (MTSMC-G)
Multi-Tech Systems, Inc. Universal Socket Hardware Guide for Developers (S000342C) 117
SIM Interface Electrical Characteristics
Parameter Conditions Minimum Typical Maximum Unit
SIMDATA V
IH
I
IH
= +/- 20µA
0.7xSIMVCC V
SIMDATA V
IL
I
IL
= 1 mA 0.3xSIMVCC V
SIMRST,
SIMDATA
SIMCLK V
OH
Source current
= 20µA
SIMVCC – 0.1V V
SIMRST,
SIMDATA
SIMCLK V
OL
Sink current
= -200µA
0.1
SIMVCC Output Voltage I
SIMVCC
<= 6mA 2.70 2.80 2.85 V
SIMCLK
Rise/Fall Time
Loaded with 30pF 50 ns
SIMRST,
SIMDATA
Rise/Fall Time
Loaded with 30pF 1
µs
SIMCLK
Frequency
Loaded with 30pF 3.25 MHz