SIMCom presents an ultra compact and reliable wireless module-SIM900D. This is a complete Quad-band GSM/GPRS module in a SMT type and designed with a very powerful single-chip processor integrating AMR926EJ-S core, allowing you to benefit from small dimensions and cost-effective solutions. Furthermore, SIM900D can be compatible with SIM340DZ.

Featuring an industry-standard interface, the SIM900D delivers GSM/GPRS 850/900/1800/1900MHz performance for voice, SMS, Data, and Fax in a small form factor and with low power consumption. With a tiny configuration of 33mm x 33mm x 3 mm, SIM900D can fit almost all the space requirements in your M2M applications, especially for slim and compact demands of design.

General features
* Quad-Band 850/ 900/ 1800/ 1900 MHz
* GPRS multi-slot class 10/8
* GPRS mobile station class B
* Compliant to GSM phase 2/2+
*Class 4 (2 W @850/ 900 MHz)
* Class 1 (1 W @ 1800/1900MHz)
* Dimensions: 33*33*3mm

* Weight: 6.2g
* Control via AT commands (GSM 07.07, 07.05 and

SIMCOM enhanced AT Commands)
* SIM application toolkit
* Supply voltage range: 3.1...4.8V
* Low power consumption: 1.5mA(sleep mode)
* Operation temperature: -40 ° C to +85° C

Specifications for Fax
* Group 3, class 1

Specifications for Data
* GPRS class 10: Max. 85.6 kbps (downlink)
* PBCCH support
* Coding schemes CS 1, 2, 3, 4
* CSD up to 14.4 kbps
* USSD
* Non transparent mode
* PPP-stack

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

Software features
* 0710 MUX protocol
* embedded TCP/UDP protocol
* FTP/HTTP( available at July, 2010)
* FOTA ( available at July, 2010)
* MMS (available at July, 2010)
* Embedded AT (available at Q3, 2010)

Specifications for Voice
* Tricodec
* Half rate (HR)
*Full rate (FR)
*Enhanced Full rate (EFR)
* Hands-free operation
(Echo suppression)
* AMR
* Half rate (HR)
* Full rate (FR)

Interfaces
* Interface to external SIM 3V/ 1.8V
* analog audio interface
* RTC backup
* SPI interface (option)
* Serial interface
* Antenna pad
* I2C
* GPIO
* PWM
* ADC