SIM Tech SIMCom SIM800C User Manual

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SIM800C_Hardware_Design_V1.00 43 2014-10-30
6. Electrical, Reliability and Radio Characteristics
6.1 Absolute Maximum Ratings
The absolute maximum ratings stated in following table are stress ratings under non-operating conditions.
Stresses beyond any of these limits will cause permanent damage to SIM800C.
Table 28: Absolute maximum ratings
Symbol
Min
Typ
Max
Unit
VBAT
-
-
4.5
V
Current
0
-
2.0
A
USB_VBUS
-
-
12
V
I
I
*
-
-
16
mA
I
O
*
-
-
16
mA
*
These parameters are for digital interface pins, GPIO, and UART.
6.2 Recommended Operating Conditions
Table 29: Recommended operating conditions
Symbol
Parameter
Min
Typ
Max
Unit
VBAT
Power supply voltage
3.4
4.0
4.4
V
T
OPER
Operating temperature
-40
+25
+85
℃
T
STG
Storage temperature
-45
+90
℃
6.3 Digital Interface Characteristics
Table 30: Digital interface characteristics
Symbol
Parameter
Min
Typ
Max
Unit
V
IH
High-level input current
2.1
-
3.1
V
V
IL
Low-level input current
-0.3
-
0.7
V
V
OH
High-level output voltage
2.4
-
-
V
V
OL
Low-level output voltage
-
-
0.4
V
Note: These parameters are for digital interface pins, such as keypad, GPIO and UART.
6.4 SIM Card Interface Characteristics
Table 31: SIM card interface characteristics
Symbol
Parameter
Min
Typ
Max
Unit
I
IH
High-level input current
-1.0
-
1.0
uA
I
IL
Low-level input current
-1.0
-
1.0
uA

SIM Tech SIMCom SIM800C Specifications

General

Module Type	GSM/GPRS Module
Frequency Bands	GSM 850/900/1800/1900 MHz
GPRS mobile station	Class B
Compliant to GSM phase	2/2+
USSD	Supported
Operating Temperature	-40°C to +85°C
Product Type	GSM/GPRS Module
GPRS Class	Class 12
Coding scheme	CS-1, CS-2, CS-3 and CS-4
SMS	Text and PDU modes
Interfaces	UART, SPI, I2C, GPIO, ADC
Power Supply	DC
Supply voltage range	3.4V to 4.4V
Transmitting power	Class 4 (2W) @850/900MHz, Class 1 (1W) @1800/1900MHz
Data Rate	GPRS multi-slot class 12: max. 85.6 kbps (uplink & downlink)
TCP/IP	Embedded TCP/IP stack

Summary

SIM800C Overview

SIM800C Key Features

SIM800C Operating Modes

Package Information

SIM800C Pin Out Diagram

SIM800C Pin Description

SIM800C Package Dimensions

Application Interface

SIM800C Power Supply

Detailed information on the power supply requirements and reference circuits.

SIM800C Power Supply Pins

Specifics about VBAT, GND, VRTC pins and VDD_EXT output.

SIM800C Power On/Down Scenarios

Scenarios and timing for powering the module on and off.

SIM800C Power Down Procedures

Methods for powering down the SIM800C module, including PWRKEY and AT command.

SIM800C Power Saving Modes

Details on Minimum Functionality Mode and Sleep Modes.

SIM800C Serial Port and USB Interface

Details on serial port, USB interface, and pin definitions.

SIM800C Serial Interface Details

SIM800C USB Debug Interface

SIM800C Software Upgrade

Methods for upgrading module firmware via USB or UART.

SIM800C Audio Interfaces

SIM800C SIM Card Interface

Details on the SIM card interface, compliance, and supported card types.

SIM800C SIM Card Design Guide

SIM800C SIM Card Holder Design

SIM800C Network Status (NETLIGHT)

SIM800C Operating Status (STATUS)

SIM800C Antenna Interface

Requirements for GSM antenna impedance, VSWR, and isolation.

SIM800C GSM Antenna Circuit

PCB Layout Guidelines

SIM800C PCB Pin Assignment

SIM800C PCB Layout Principles

General guidelines for PCB layout to minimize interference and noise.

SIM800C Electrical, Reliability, Radio

SIM800C Absolute Maximum Ratings

Stress ratings beyond which permanent damage may occur.

SIM800C Operating Conditions

Voltage and temperature ranges for normal operation.

SIM800C Digital Interface Specs

SIM800C SIM Interface Specs

SIM800C Current Consumption

Current consumption values under various operating modes and conditions.

SIM800C ESD Characteristics

SIM800C Radio Characteristics

RF output power, receive sensitivity, and operating frequencies.

SIM800C Manufacturing

SIM800C Moisture Sensitivity Level

SIM800C Baking Requirements

SIM800C Safety Cautions