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Product Name: SIM300W/SIM340W

The SIM300W/SIM340W is a complete Dual-band/Quad-band GSM/GPRS solution in a SMT module which can be embedded in the customer applications.

Featuring an industry-standard interface, the SIM300W delivers GSM900/1800MHz performance for Voice, SMS, Data, and Fax in a small form factor and with low power consumption.

The leading features of SIM300W /SIM340W make it ideal for applications such as WLL applications(Fixed Celullar Terminal), handled devices.

General features
- Dual-Band GSM 900/1800MHz
- GPRS multi-slot class 10/8
- GPRS mobile station class B
- Compliant to GSM phase 2/2+
- Class 4 (2 W @ 900MHz)
- Class 1 (1 W @ 1800MHz)
- Dimension: 33*33*3mm
- Weight: 8g
- Control via AT commands(GSM 07.07, 07.05 and SIMCOM enhanced AT commands)
- SIM application toolkit
- Supply voltage range 3.4-4.5 V
- Low power consumption
- Normal operation temperature: -20° C to +60° C

Specifications for fax
- Group 3, class 1

Specifications for data:
- PBCCH support
- GPRS class 10: Max, 85, 6 kbps(downlink)
- PPP-stack
- Coding schemes CS 1, 2, 3, 4
- CSD up to 14.4 kbps
- USSD
- Non transparent mode

Specifications for SMS via GSM / GPRS
- Point-to-point MO and MT
- SMS cell broadcast
- Text and PDU mode

Specifications for voice
- Tricodec
- Half rate (HR)
- Full rate (FR)
- Enhanced Full rate (EFR)
- Hands-free operation
- Echo cancellation
- AMR

Drivers
- MUX Driver

Interfaces
- Interface to external SIM 3V/1.8V
- Two analog audio interfaces
- RTC backup
- Serial Interface and debug interface
- LCD interface
- Keypad interface
- Antenna connector and antenna pad

Compatibility
- AT cellular command interface