Hardware Design SIM800L (SIMCom) - 6

Smart Machine Smart Decision Table Index
Table 1: SIM800L key features. 11
Table 2: Coding schemes and maximum net data rates over air interface .13
Table 3: Overview of operating modes .13
Table 4: Pin description.16
Table 5: Recommended Zener diode .21
Table 6: Electronic characteristic of the RESET pin .27
Table 7: The current consumption of Minimum Functionality Mode (BS-PA-MFRMS=9) .27
Table 8: Serial port and USB pin definition.29
Table 9: Serial port characteristics .30
Table 10: VBUS operation voltage .33
Table 11: Multiplexing function of serial port .34
Table 12: RI behaviors .35
Table 13: Audio interface definition .36
Table 14: Performance of audio amplifier .36
Table 15: Microphone input characteristics .38
Table 16: Audio output characteristics.38
Table 17: SIM pin definition.39
Table 18: Pin description (Molex SIM card holder) .41
Table 19: Pin description (Amphenol SIM card holder).42
Table 20: PCM Pin definition .42
Table 21: PCM specification.43
Table 22: PCM multiplexing function .43
Table 23: Pin definition of the keypad interface .47
Table 24: Keypad multiplexing function .47
Table 25: Pin definition of the I2C.47
Table 26: I2C multiplexing function.48
Table 27: Pin definition of the GPIO .48
Table 28: Pin definition of the ADC .48
Table 29: ADC specification .48
Table 30: Pin definition of the PWM .48
Table 31: Buzzer output characteristics .49
Table 32: PWM multiplexing function .49
Table 33: Pin definition of the NETLIGHT.49
Table 34: Status of the NETLIGHT pin .50
Table 35: NETLIGHT multiplexing function .50
Table 36: Pin definition of the STATUS .50
Table 37: STATUS multiplexing function.51
Table 38: Pin definition of the LED.51
Table 39: LED specification .51
Table 40: Definition of the BPI_BUS1 pin.52
Table 41: Absolute maximum ratings .58
Table 42: Recommended operating conditions.58
Table 43: Digital interface characteristics.58
Table 44: SIM card interface characteristics.59
Table 45: SIM_VDD characteristics .59
SIM800L_Hardware_Design_V1.00 6 2013-08-20