Sim800 hardware design v1.05
Table Of Contents
- Version History
- 1. Introduction
- 2. SIM800 Overview
- 3. Package Information
- 4. Application Interface
- 4.1. Power Supply
- 4.2. Power on/down SIM800
- 4.3. Power Saving Mode
- 4.4. RTC Backup
- 4.5. Serial Port and USB Interface
- 4.6. RI Behaviors
- 4.7. Audio Interfaces
- 4.8. Bluetooth
- 4.9. SIM Card Interface
- 4.10. PCM Interface
- 4.11. Keypad Interface
- 4.12. I2C BUS
- 4.13. General Purpose Input/Output (GPIO)
- 4.14. ADC
- 4.15. PWM
- 4.16. Network Status Indication
- 4.17. Operating Status Indication
- 4.18. KPLED
- 4.19. RF Synchronization Signal
- 4.20. Antenna Interface
- 5. PCB Layout
- 6. Electrical, Reliability and Radio Characteristics
- 6.1 Absolute Maximum Ratings
- 6.2 Recommended Operating Conditions
- 6.3 Digital Interface Characteristics
- 6.4 SIM Card Interface Characteristics
- 6.5 SIM_VDD Characteristics
- 6.6 VDD_EXT Characteristics
- 6.7 VRTC Characteristics
- 6.8 Current Consumption (VBAT=4V)
- 6.9 Electro-Static Discharge
- 6.10 Radio Characteristics
- 6.11 Module RF Receive Sensitivity
- 6.12 Module Operating Frequencies
- 7. Manufacturing
- 8. Appendix
Smart Machine Smart Decision
SIM800_Hardware Design_V1.05 64 2014-03-25
II. Multiplex Function
Table 54: Multiplex Function
Pin name Pin number Mode 0(default) Mode 1 Mode 2 Mode 3
UART_DTR
3
UART_DTR GPIO13 EINT2 -
UART_RI
4
UART_RI GPIO14 - -
UART_DCD
5
UART_DCD GPIO15 -
PCM_OUT 6 PCM_OUT GPIO16 MC3DA3 GPIO16
GPIO17 11 GPIO17 DISP_CLK MC3DA1 GPIO17
PCM_IN 12 PCM_IN DISP_DATA MC3DA2 GPIO18
GPIO19 13 GPIO19 DISP_D/C MC3DA0 GPIO19
PCM_SYNC 14 PCM_SYNC DISP_CS MC3CK GPIO20
SIM_PRE 34 SIM_PRE
GPIO21 EINT7 -
PWM1 35 PWM1 GPIO22
EINT0 -
PWM2 36 GPIO23
PWM2 EINT8 -
SDA 37 SDA
GPIO24 -
SCL 38 SCL
GPIO25 -
ROW4
40
ROW4 GPIO1 EINT3
ROW3
41
ROW3 GPIO2 -
ROW2
42
ROW2 GPIO3 -
ROW1
43
ROW1 GPIO4 -
ROW0
44
ROW0 GPIO5 -
COL4
47
COL4 GPIO6 EINT1
COL3
48
COL3 GPIO7 -
COL2
49
COL2 GPIO8 -
COL1
50
COL1 GPIO9 -
COL0
51
COL0 GPIO10 -
RF_SYNC
67
RF_SYNC GPIO11 -
PCM_CLK 68 PCM_CLK GPIO12 MC3CM0 GPIO12