(No.RA044)1-232.3.8 Micro USB Socket J7002.3.9 micro SD Slot J7012.3.10 Microphone Jack J8802.3.11 Speaker Jack J8802.3.12 DC Jack J576Pin No. Pin Name I/O Function Rating and Condition1 V BUS I V BUS sense input Input voltage 4.4-5.25V2 DM I/O USB D- Full-Speed(12Mbps) VIH>2.0V,VIL<0.8VIncluded Pull up resistors3 DP I/O USB D+ Full-Speed(12Mbps) VIH>2.0V,VIL<0.8V4 NC - NC -5 GND I GND GNDPin No. Pin Name I/O Description Rating and Condition1 DAT2 I/O Data line is bidirectional signal.Host and card drivers operate in push pull mode.VIH:2.0 to 3.6V VIL:-0.3 to 0.8VVOH(Io=4mA):2.4 to 3.6VVOL(Io=4mA):max 0.4V2 DAT3 I/O Data line is bidirectional signal.Host and card drivers operate in push pull mode.VIH:2.0 to 3.6V VIL:-0.3 to 0.8VVOH(Io=4mA):2.4 to 3.6VVOL(Io=4mA):max 0.4V3 CMD I/O Command is bidirectional signal.Host and card drivers operate in push pull mode.VIH:2.0 to 3.6V VIL:-0.3 to 0.8VVOH(Io=4mA):2.4 to 3.6VVOL(Io=4mA):max 0.4V4 VDD O 3.3V power supply output. Output Voltage:3.267 to 3.333V(typ3.3V)Maximum Current max 0.2A5 CLK I/O Clock is a host to card signal.CLK operates in push pull mode.VOH(Io=4mA):2.4 to 3.6VVOL(Io=4mA):max0.4V Clock frequency(High Speed MODE) MAX 50MHz6 VSS - GND -7 DAT0 I/O Data line is bidirectional signal.Host and card drivers operate in push pull mode.VIH:2.0 to 3.6V VIL:-0.3 to 0.8VVOH(Io=4mA):2.4 to 3.6VVOL(Io=4mA):max 0.4V8 DAT1 I/O Data line is bidirectional signal.Host and card drivers operate in push pull mode.VIH:2.0 to 3.6V VIL:-0.3 to 0.8VVOH(Io=4mA):2.4 to 3.6VVOL(Io=4mA):max 0.4V- CardDetect SWI Normally open.microSD is inserted ON.microSD is inserted OFF.VIH:2.0 to 3.6VVIL:-0.3 to 0.8V- COMMON - - -Pin No. Pin Name I/O Function Rating and Condition1 PTT I PTT VIH:2.0 to 3.6V StandbyVIL:-0.3 to 0.4V Transmit2 33M O 3.3V output VOH(Io=7.5mA max):2.4 to 3.6V3 MIC I External Microphone input 2k ohm terminatedPin No. Pin Name I/O Function Rating and Condition6 SPG I Speaker GND GND7 SP O SP AF output Output impedance 8 ohm or higher.Ex)SMC-34's speaker impedance is 15.5 ohm8 REM I Remote key Detection PF1:3.9k±5%.PF2:10k±5%.PF3:27k±5%.Lock:less than 10 ohmPin No. Pin Name I/O Function Rating and Condition1 + I Voltage Supply Voltage:11.0-15.9V2 GND I GND GND