SIM4100 is a dual-mode TD-SCDMA module which works at 2010-2025MHz on the TD-SCDMA mode and Tri-Band 900/1800/1900MHz on the GSM mode.

The leading features of SIM4100 make it ideal for virtually unlimited applications, such as WLL applications (Fixed cellular terminal), M2M applications, handheld devices, PC card and much more.   • AMR voice   • SMS/MMS   • PS: Uplink (up to 128Kbps)            Downlink (up to 384Kbps)   • Average idle current :8mA   • Board interface: 80pin B2B connector   • Based upon mature and field-proven platform, backed up by SIMCom support service, from definition to design and production General features   • TD-SCDMA 2010-2025MHz   • Tri-Band GSM/GPRS 900/1800/1900MHz   • Compliant to 3GPPclass B +24dBm   • Dimension: 61.0mm x 34.0mm x 3.0mm   • Weight: 15g   • AT commands (GSM07.07, 07.05, 3GPP and SIMCom enhanced AT commands)   • SIM application toolkit   • Battery voltage range: 3.4V to 4.5V   • Low power consumption   • Normal operation temperature: -20 °C to +60 °C   • Restricted operation temperature: -30 °C to -20 °C and +60 °C to +80 °C   • Storage temperature: -40 °C to +85 °C

Specifications for PS   • 128/384 Kbps support   • CSD 64Kbps   • USSD   • PPP stack   • TCP/IP stack

Specifications for voice   • AMR   • Internal amplifier for 8ohm speaker

Interfaces   • USIM interface 3V/1.8V   • Two differential analog audio interfaces   • USB 2.0   • I2C   • PCM   • USC   • GPIO   • Keypad interface: 5*5   • LCD interface: SPI   • RTC backup   • AT interface with flow control   • Debug interface   • Antenna connector and antenna pad