银灿IS903主控芯片的原理图，主要是对芯片的接线的解析，每一个针脚都要专业的解释，内含两个PDF文档，非常详细的介绍了引脚含义，专业的datasheet图。
Pin Descriptions ( QFN-64 9×9 & 8×8 )
Pin Name Pin# (64) 9×9 Pin# (64) 8×8 Pull up/down Attribute Description
C1_DAT[4] 1 63 down*1 I/O Flash Channel-1 data
C1_DAT[5] 2 64 down*1 I/O Flash Channel-1 data
C1_DAT[6] 3 1 down*1 I/O Flash Channel-1 data
C1_DAT[7] 4 2 down*1 I/O Flash Channel-1 data
GND 5 3 GND GND
GPIO 6 4 None O reserved
LED_1 7 5 None O LED to show link status and r/w traffic
DVDD12 8 6 PWR 1.2V core power supply
MODE0 9 7 down I Test mode pin, tie to GND
RST_N 10 8 up I Chip reset, low active
LED_0 11 9 None O LED to show link status and r/w traffic
C0_WE# 12 10 None O Flash Channel-0 WE#
C0_RE# 13 11 None O Flash Channel-0 RE#
C0_CLE 14 12 None O Flash Channel-0 Command latch
C0_ALE 15 13 None O Flash Channel-0 Address latch
DVDD33 16 14 PWR 3.3V IO power supply
C1_WE# 17 15 None O Flash Channel-1 WE#
C1_RE# 18 16 None O Flash Channel-1 RE#
C1_CLE 19 17 None O Flash Channel-1 Command latch
C1_ALE 20 18 None O Flash Channel-1 Address latch
GND 21 – GND GND
WP# 22 19 None O Flash write protection
C0_CE0 23 20 None O Flash Channel-0 chip enable 0
C0_CE1 24 21 None O Flash Channel-0 chip enable 1
C0_CE2 22 None O Flash Channel-0 chip enable 2
C0_CE3 26 23 None O Flash Channel-0 chip enable 3
DVDD33 27 24 PWR 3.3V IO power supply
C1_CE0 28 25 None O Flash Channel-1 chip enable 0
C1_CE1 29 26 None O Flash Channel-1 chip enable 1
C1_CE2 30 27 None O Flash Channel-1 chip enable 2
C1_CE3 31 28 None O Flash Channel-1 chip enable 3
DVDD12 32 29 PWR 1.2V core power supply
SPI_MOSI – 30 O SPI interface, MOSI
SPI_MISO – 31 I SPI interface, MISO
SPI_CLK – 32 O SPI interface, clock
SPI_CS – 33 O SPI interface, chip enable
XSCO 33 34 O Crystal 30Mhz output
XSCI 34 35 I Crystal 30Mhz input
DP 35 36 I/O USB 2.0 differential pin plus
DM 36 37 I/O USB 2.0 differential pin minus
VCC33A 37 38 PWR 3.3V analog power supply
NC 38 –
NC 39 –
NC 40 –
SS_TXM 41 39 O USB 3.0 differential transmit pin negative
SS_TXP 42 40 O USB 3.0 differential transmit pin positive
VCC12A 43 41 PWR 1.2V analog power supply
SS_RXM 44 42 I USB 3.0 differential receive pin negative
SS_RXP 45 43 I USB 3.0 differential receive pin positive
GND 46 44 GND GND
MODE1 47 45 down I Test mode pin, tie to GND
C0_DQS 48 46 down*1 I/O Flash Channel-0 strobe data
C0_DAT[0] 49 47 down*1 I/O Flash Channel-0 data
C0_DAT[1] 50 48 down*1 I/O Flash Channel-0 data
C0_DAT[2] 51 49 down*1 I/O Flash Channel-0 data
C0_DAT[3] 52 50 down*1 I/O Flash Channel-0 data
DVDD33 53 51 PWR 3.3V IO power supply
C0_DAT[4] 54 52 down*1 I/O Flash Channel-0 data
C0_DAT[5] 55 53 down*1 I/O Flash Channel-0 data
C0_DAT[6] 56 54 down*1 I/O Flash Channel-0 data
C0_DAT[7] 57 55 down*1 I/O Flash Channel-0 data
DVDD12 58 56 PWR 1.2V core power supply
C1_DQS 59 57 down*1 I/O Flash Channel-1 strobe data
C1_DAT[0] 60 58 down*1 I/O Flash Channel-1 data
C1_DAT[1] 61 59 down*1 I/O Flash Channel-1 data
C1_DAT[2] 62 60 down*1 I/O Flash Channel-1 data
C1_DAT[3] 63 61 down*1 I/O Flash Channel-1 data
DVDD33 64 62 PWR 3.3V IO power supply
提取码: yuku