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BU94705KV Datasheet(PDF) 3 Page - Rohm |
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BU94705KV Datasheet(HTML) 3 Page - Rohm |
3 / 6 page 3/5 REV. A ◇Description of Terminals No. Name I/O Description of terminals 1 RESETX I System reset terminal 2 TEST15 O [TEST15]Pull-up at 2.2k ohm to VDD1 system power supply terminal(TEST PIN) 3 TEST16 O [TEST16]Pull-up at 2.2k ohm to VDD1 system power supply terminal(TEST PIN) 4 SEL_SLAVE I Slave mode selection(H:Stand Alone mode, L:Slave mode) 5 SEL_MP3/INREQI I [SEL_MP3]MPEG Audio Layer selection(H:Only MP3, L:MP1, MP2 and MP3 can be playback), [INREQI]Input data valid 6 SEL_DOUT/LRCKI I [SEL_DOUT]Digital Audio out selection(H:Disable、L:Enable), [LRCKI]Digital Audio channel clock input terminal 7 SEL_VOL/BCKI I [SEL_VOL] Volume operation selection(H:Volume+- Effective, L:VOL+-Inavalidity), [BCKI]Digital Audio bit clock input terminal 8 SEL_APLAY/SDATAI I [SEL_APLAY] At device(USB,SD) connection, Auto Play mode selection(H:It stop, L:It playback), [SDATAI]Digital Audio data input terminal 9 SEL_UTPKT/BFULLO I/O [SEL_UTPKT] USB test packet output selection(H:Normal、L:Test packet),[BFULLO]Input buffer FULL flag output terminal 10 DVSS - GND terminal 11 IRPTO O To HOST interruption output terminal 12 SEARCH O Search flag terminal 13 DVDDIO - IO Power supply(VDD1) terminal 14 KEY_ROW1/MCHNG I/O [KEY_ROW1]KEY Matrix terminal, [MCHNG]Music change flag terminal 15 KEY_ROW2/BUSY I/O [KEY_ROW2]KEY Matrix terminal, [BUSY]Busy flag terminal 16 KEY_ROW3/SCL I [KEY_ROW3]KEY Matrix terminal, [SCL]I 2C slave clock I/F input terminal 17 KEY_ROW4/SDA I/O [KEY_ROW4]KEY Matrix terminal, [SDA]I 2C slave data I/F terminal 18 KEY_COL1/A0 O/I [KEY_COL1]KEY Matrix terminal, [A0]I 2C slave address selection 19 KEY_COL2/A1 O/I [KEY_COL2]KEY Matrix terminal, [A1]I 2C slave address selection 20 KEY_COL3/SEL_I2C O/I [KEY_COL3]KEY Matrix terminal, [SEL_I2C]Pull-up to VDD1 system power supply terminal 21 SD_WP I SD card Write Protect terminal 22 SD_CON I SD card Connect terminal 23 SD_DO I SD card Data In terminal 24 SD_CLK O SD card Clock terminal 25 SD_DI O SD card Data Out terminal 26 SD_CS O SD card Chip select terminal 27 DVSS - GND terminal 28 FL_CS O Serial FLASH ROM Chip select terminal 29 TEST/CLK12MO I/O [TEST] Pull-up to VDD1 system power supply terminal(TEST PIN), [CLK12MO]12MHz clock output terminal 30 TEST5 O [TEST5]OPEN (TEST PIN) 31 TEST6 I [TEST6]Pull-up to VDD1 system power supply terminal(TEST PIN) 32 TEST7 I [TEST7]Pull-up to VDD1 system power supply terminal(TEST PIN) 33 DVDDIO - IO Power supply(VDD1) terminal 34 TEST8 I [TEST8]Pull-up to VDD1 system power supply terminal(TEST PIN) 35 TEST9 I [TEST9]Pull-up to VDD1 system power supply terminal(TEST PIN) 36 TEST10 O OPEN (TEST PIN, IPL ERROR Flag output) 37 DVSS - GND terminal 38 DVDD_M2 - CORE Power supply(VDD2) monitor terminal. Connect to DVDD_M1 pin. 39 ATEST1 O USB TEST terminal(TEST PIN), OPEN 40 AVDDC - USB Power supply(VDD1)terminal 41 USB_DM I/O USB D-I/O terminal 42 USB_DP I/O USB D+ I/Oterminal 43 AVSSC - USB GND terminal 44 REXTI O USB bias resistor(12kΩ) connecting terminal 45 VOREFI O USB TEST terminal(TEST PIN), OPEN 46 VSS_PLL - PLL GND terminal 47 TEST_PLL1 I PLL TEST terminal(TEST PIN), OPEN 48 XIN_PLL I X'tal(16.9344MHz) connecting input terminal 49 XOUT_PLL O X'tal(16.9344MHz) connecting output terminal 50 TEST_PLL2 O PLL TEST terminal(TEST PIN), Pull-up to VDD1 system power supply terminal 51 VDD_PLL - PLL Power supply(VDD1) terminal 52 DAVSS - Audio DAC GND terminal 53 RDACO O Audio DAC Rch Line output terminal 54 VCDACO O Audio DAC Reference voltage output teminal 55 LDACO O Audio DAC Lch Line output terminal 56 DAVDD - Audio DAC Power supply(VDD1) terminal 57 DVSS - GND terminal 58 AMUTE O Audio Mute output terminal(H:MUTE OFF, L:MUTE ON) 59 TEST11 O OPEN (TEST PIN) |
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