Data Sheet

Smart Machine Smart Decision
SIM800F_Hardware Design_V1.00 11 2015-07-31
1 Introduction
This document describes SIM800F hardware interface in great detail.
This document can help users understand both the interface specifications and the electrical and mechanical
details of SIM800F quickly. With the help of this document and other SIM800F application notes or user guide,
users can use SIM800F to design various applications quickly.
2 SIM800F Overview
Designed for global market, SIM800F is a quad-band GSM/GPRS module that works on frequencies GSM
850MHz, EGSM 900MHz, DCS 1800MHz and PCS 1900MHz. SIM800F features GPRS multi-slot class 10/
class 8 (optional) and supports the GPRS coding schemes CS-1, CS-2, CS-3 and CS-4.
With a tiny configuration of 24*24*3mm, SIM800F can meet almost all the space requirements in users’
applications, such as smart phone, PDA and other mobile devices.
SIM800F is a SMT package with 68 pads, and provides hardware interfaces as below:
 One full function UART port
 One USB port for debugging and firmware upgrading
 Audio channel which includes a microphone input and a receiver output
 One SIM card interface
 Support up to 4*5 Keypads
 One display interface
 One I2C master interface for peripheral management
 Programmable general purpose input and output
 Two PWM output
 One ADC input
 Bluetooth antenna interface
 GSM antenna interface
SIM800F is designed with power saving technique so that the current consumption is as low as 0.55mA in sleep
mode.
SIM800F integrates TCP/IP protocol and extended TCP/IP AT commands which are very useful for data transfer
applications. For details about TCP/IP applications, please refer to document
[2]
.
2.1 SIM800F Key Features
Table 1: SIM800F key features
Feature Implementation
Power supply 3.4V ~ 4.4V