SIM300 Datasheet – GSM Module – SIMCOM

Part Number : SIM300

Function :  GSM Module

Package : 40mm x 33mm x 2.85 mm

Manufactures : SIMCOM


SIM300 image


1. Power supply : Single supply voltage 3.4V – 4.5V

2. Power saving : Typical power consumption in SLEEP mode to 2.5mA

3. Frequency bands
(1) SIM300 Tri-band: EGSM 900, DCS 1800, PCS 1900. The band can be set by AT COMMAND, and default band is EGSM 900 and DCS 1800.
(2) Compliant to GSM Phase 2/2+

4. GSM class : Small MS

5. Transmit power
(1) Class 4 (2W) at EGSM900
(2) Class 1 (1W) at DCS1800 and PCS 1900

6. GPRS connectivity
(1) GPRS multi-slot class 10
(2) GPRS mobile station class B


SIM300 datasheet pinout

Description :

Designed for global market, SIM300 is a Tri-band GSM/GPRS engine that works on frequencies EGSM 900 MHz, DCS 1800 MHz and PCS1900 MHz. SIM300 provides GPRS multi-slot class 10 capability and support the GPRS codingschemes CS-1, CS-2, CS-3 and CS-4. With a tiny configuration of 40mm x 33mm x 2.85 mm , SIM300 can fit almost all the space requirement in your application, such as Smart phone, PDA phone and other mobile device.


SIM300 Datasheet


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SIM908 Datasheet – Quad-Band GSM/GPRS Module – Simcom

Part Number : SIM908

Function : Quad-Band GSM/GPRS Module

Dimensions : 30 x 30 x 3.2 mm, Weight: 5.2 g

Manufacturers : Shanghai SIMCom Wireless Solutions

Image :



SIM908 module is a complete Quad-Band GSM/GPRS module which combines GPS technology for satellite navigation. The compact design which integrated GPRS and GPS in a SMT package will significantly save both time and costs for customers to develop GPS enabled applications.

Featuring an industry-standard interface and GPS function, it allows variable assets to be tracked seamlessly at any location and anytime with signal coverage




1. Quad-Band 850/900/1800/1900 MHz
2. GPRS multi-slot class 10
3. GPRS mobile station class B
4. Compliant to GSM phase 2/2+
(1) Class 4 (2 W @850/900 MHz)
(2) Class 1 (1 W @ 1800/1900MHz)
5. Control via AT commands (GSM 07.07 ,07.05 and SIMCOM enhanced AT Commands)


Official Homepage :

Reference Site :


SIM908 Datasheet

SIM908 pdf

Schematics : schematics.pdf

Application-note : application-note.pdf


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