This document provides detailed information about SIM340C hardware design, including version history, introduction, function description, system composition, interface definition, signal integrity, layout and routing, power design, test specification and other contents.
This document describes the hardware interface of the SIMCom SIM340C module, covering pin assignments, power supply options, charging techniques, and various peripheral interfaces. It is intended to help engineers integrate the SIM340C into their designs and understand its electrical and mechanical characteristics.
Key sections include functional diagrams, pin description tables, power‑up/down scenarios, audio and SIM‑card interfaces, antenna installation, and mechanical dimensions of the module and board‑to‑board connector. The guide also lists recommended battery parameters and provides reference circuits for power and RF sections.
Shanghai SIMCom Wireless Solutions Ltd holds the copyright.
The guide is dated 18 March 2009.
It describes the hardware interface of the SIMCom SIM340C module, including specifications, mechanical details, and power management.