User's Guide
Table Of Contents
- Chapter 1 – Product Description and Specification
- Chapter 2 – Mechanical Specifications
- Chapter 3 – Electrical Characteristics
- Chapter 4 – SocketModem Interfaces
- Chapter 5 – SocketModem Test Board
- Chapter 6 – Application Considerations
- Appendix A – Safety Precautions & Regulatory Stan
- Appendix B – Sources for Peripheral Devices
- Appendix C – AT Command List
- Appendix D – Acronyms and Abbreviations
- Index
Chapter 3 – Electrical Characteristics
10
SIM Interface Electrical Characteristics
SIM Interface Electrical Characteristics
This information is repeated in the next chapter under the SIM Interface section.
Parameter Conditions Min Typ Max Unit
SIMDATA V
IH
I
IH
= +/- 20mA
0.7xSIMVCC V
SIMDATA V
IL
I
IL
= 1 mA 0.3xSIMVCC V
SIMRST,
SIMDATA
SIMCLK V
OH
Source current
= 20
mA
SIMVCC – 0.1V V
SIMRST,
SIMDATA
SIMCLK V
OL
Sink current
= -200
mA
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
ms
SIMCLK
Frequency
Loaded with 30pF 3.25 MHz
Handling Precautions
All devices must be handled with certain precautions to avoid damage due to the accumulation of static
charge. Although input protection circuitry has been incorporated into the devices to minimize the effect of
this static buildup, proper precautions should be taken to avoid exposure to electrostatic discharge during
handling and mounting.