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Schematic Diagrams
KBC-ITE IT8518
VDD3
Sheet 27 of 42
½ÐEC Pin 78
³]¸m¬°HI enable
KBC-ITE IT8518
[11]
B - 28 KBC-ITE IT8518
R256
*28mil_06
KBC_VSTBY
C511
C268
C518
C272
C281
0.1u_16V_Y 5V_04
10u_10V_Y 5V_08
0.1u_16V_Y 5V_04
0.1u_16V_Y5V_04
0.1u_16V_Y 5V_04
L16
*28mil_06
EC_VCC
3.3VS
C283
0.1u_16V_Y 5V_04
U23
10
[13,23]
LPC_AD0
9
LAD0
[13,23]
LPC_AD1
LAD1
8
[13,23]
LPC_AD2
LAD2
7
[13,23]
LPC_AD3
13
LAD3
PCLK_KBC
[17]
PCLK_KBC
6
LPCCLK
[13,23]
LPC_FRAME#
LFRAME#
5
LPC
K/B MATRIX
[13,23]
SERIRQ
SERIRQ
22
[11,22,24,26]
BUF_PLT_RST#
LPCRST#/WUI4/GPD2( PU )
14
KBC_WRESET#
WRST#
126
[18]
GA20
GA20/GPB5
4
[38]
AC_IN#
KBRST#/GPB6( PU )
16
[28]
LED_ACIN
PWUREQ#/GPC7( PU )
*0_04
R293
20
[15,17]
AC_PRESENT
L80LLAT/GPE7( PU )
*0_04
R289
[15]
PM_PCH_PWROK
23
[18]
SMI#
ECSCI#/GPD3( PU )
15
[18]
SCI#
ECSMI#/GPD4( PU )
DAC
76
[22]
WLAN_EN
GPJ0
77
[29]
KBC_MUTE#
78
GPJ1
[13]
ME_WE
DAC2/GPJ2
79
[30]
CPU_FAN
DAC3/GPJ3
80
IT8518
[30]
WEB_WWW#
DAC4/GPJ4
81
DAC5/GPJ5
ADC
FLASH
BAT_DET
66
[38]
BAT_DET
ADC0/GPI0
BAT_VOLT
67
[38]
BAT_VOLT
ADC1/GPI1
68
AP_KEY #
[30]
AP_KEY #
ADC2/GPI2
69
[2]
THERM_VOLT
ADC3/GPI3
70
[38]
TOTAL_CUR
71
ADC4/GPI4
3G_DET#
[23]
3G_DET#
ADC5/GPI5
CCD_DET#
72
[23]
CCD_DET#
ADC6/GPI6
( PD )FLRST#/WUI7/GPG0/TM
MODEL_ID
73
ADC7/GPI7
GPIO
SMBUS
SMC_BAT
110
[38]
SMC_BAT
SMCLK0/GPB3
SMD_BAT
111
[38]
SMD_BAT
115
SMDAT0/GPB4
SMCLK1/GPC1
116
R227
43_1%_04
[3,18]
H_PECI
SMDAT1/GPC2
117
[14]
SMC_CPU_THERM
118
SMCLK2/GPF6( PU )
R226
*0_04
[14]
SMD_CPU_THERM
SMDAT2/GPF7( PU )
PWM
LCD_BRIGHTNESS
24
PWM0/GPA0( PU )
25
[29]
KBC_BEEP
PWM1/GPA1( PU )
28
[28]
LED_SCROLL#
PWM2/GPA2( PU )
29
LOW ACTIVE
EXT GPIO
[28]
LED_NUM#
PWM3/GPA3( PU )
30
[28]
LED_CAP#
31
PWM4/GPA4( PU )
[28]
LED_BAT_CHG
PWM5/GPA5( PU )
32
HIGH ACTIVE
[28]
LED_BAT_FULL
PWM6/GPA6( PU )
34
[28]
LED_PWR
PWM7/GPA7( PU )
WAKE UP
PS/2
80CLK
85
[22]
80CLK
PS2CLK0/GPF0( PU )
( PD )LPCPD#/WUI6/GPE6
86
[22]
BT_DET#
87
PS2DAT0/GPF1( PU )
3IN1
PWM/COUNTER
[22]
3IN1
PS2CLK1/GPF2( PU )
88
[30]
WEB_EMAIL#
PS2DAT1/GPF3( PU )
89
[30]
TP_CLK
90
PS2CLK2/GPF4( PU )
[30]
TP_DATA
PS2DAT2/GPF5( PU )
( PD )TMRI0/WUI2/GPC4
WAKE UP
( PD )TMRI1/WUI3/GPC6
125
[23]
3G_EN
PWRSW/GPE4( PU )
CIR
18
[31]
PWR_SW#
RI1#/WUI0/GPD0( PU )
21
[11,30]
LID_SW#
RI2#/WUI1/GPD1( PU )
GP INTERRUPT
LPC/WAKE UP
33
[15]
PWR_BTN#
GINT/GPD5( PU )
( PD )RING#/PWRFAIL#/LPCRST#/GPB7
UART
108
[22]
WLAN_PWR_EN
RXD/GPB0( PU )
109
[22]
WLAN_DET#
TXD/GPB1( PU )
IT8518E V ER:H:
IT8518E VER:H
6-03-08518-0P3
EC_VSS
C287
0.1u_16V_Y 5V_04
NC1
*NC_04
R299
*10mil_04
LCD_BRIGHTNESS
BRIGHTNESS
KBC_AGND
C320
*0.1u_10V_X5R_04
KBC_AVDD
L17
*28mil_06
VDD3
C308
C309
C310
0.1u_16V_Y5V_04
*0.1u_16V_Y 5V_04
*0.1u_16V_Y5V_04
KBC_AGND
1
24
J_KB1
J_KB2
6-20-94AF0-124
85208-24051
PCB Footprint = 85208-2405X
58
KB-SI0
4
KSI0/STB#
59
5
KB-SI1
KSI1/AFD#
60
KB-SI2
6
KSI2/INIT#
61
KB-SI3
8
KSI3/SLIN#
62
11
KB-SI4
KSI4
63
12
KB-SI5
KSI5
64
KB-SI6
14
KSI6
65
KB-SI7
15
KSI7
36
1
KB-SO0
KSO0/PD0
37
KB-SO1
2
KSO1/PD1
38
KB-SO2
3
KSO2/PD2
39
7
KB-SO3
KSO3/PD3
40
KB-SO4
9
KSO4/PD4
41
KB-SO5
10
KSO5/PD5
42
13
KB-SO6
KSO6/PD6
43
16
KB-SO7
KSO7/PD7
44
KB-SO8
17
KSO8/ACK#
45
KB-SO9
18
KSO9/BUSY
46
19
KB-SO10
KSO10/PE
51
KB-SO11
20
KSO11/ERR#
52
KB-SO12
21
KSO12/SLCT
53
22
KB-SO13
KSO13
54
KB-SO14
23
KSO14
55
KB-SO15
24
KSO15
100
3G_PWR_EN
[23]
FLFRAME#/GPG2
101
KBC_SPI_CE#
FLAD0/SCE#
102
KBC_SPI_SI
FLAD1/SI
103
KBC_SPI_SO
FLAD2/SO
104
USB_CHARGE_EN
[31,32]
FLAD3/GPG6
105
KBC_SPI_SCLK
FLCLK/SCK
106
CCD_EN
[23]
56
( PD )KSO16/GPC3
SUSB#
[6,15,31]
57
( PD )KSO17/GPC5
SUSC#
[15,33]
93
( PD )GPH0/ID0
SUS_PWR_ACK
[15]
94
( PD )GPH1/ID1
BT_EN
[22,28]
95
BKL_EN
[11]
( PD )GPH2/ID2
96
HSPI_CE#
[13]
( PD )GPH3/ID3
97
( PD )GPH4/ID4
HSPI_SCLK
[13]
98
( PD )GPH5/ID5
HSPI_MSO
[13]
99
HSPI_MSI
[13]
( PD )GPH6/ID6
107
( PD )GPG1/ID7
DD_ON
[30,31,32]
82
EGAD
( PD )EGAD/GPE1
83
EGCS#
For Docking
( PD )EGCS#/GPE2
84
EGCLK
( PD )EGCLK/GPE3
35
( PD )WUI5/GPE5
RSMRST#
[15]
17
KBC_RST#
[18]
47
( PD )TACH0/GPD6
CPU_FANSEN
[30]
48
H_PROCHOT_EC
[3]
( PD )TACH1/GPD7
120
PM_PCH_PWROK
[15]
124
ALL_SYS_PWRGD
[11,15,36]
119
( PD )CRX/GPC0
123
PME#_R
R225
*0_04
PME#
[17]
( PD )CTX/GPB2
R224
*10mil_04
LAN_PCIE_WAKE#
[24]
19
( PD )L80HLAT/GPE0
SWI#
[15]
112
EC_RESET [38]
CLOCK
2
CK32KE
R247
*0_04
NB_ENAVDD
[11,16]
CK32KE
128
CK32K
CK32K
R222
*10mil_04
[3,9,10,11,12,13,14,15,16,17,18,19,20,23,24,25,28,29,30,31,36]
MODEL_ID
Voltage
RA
RB
VDD3
W345EU
3.3V
10K
X
RN12
10K_8P4R_04
BAT_DET
4
5
W340EU
0V
X
10K
3
6
AP_KEY#
3G_DET#
2
7
CCD_DET#
1
8
X
1.65V
10K
10K
RA
MODEL_ID
R297
10K_04
R296
*10K_04
RB
VDD3
PCLK_KBC
R278
*10_04
PCLK_KBC_R
C300
*10p_50V_NPO_04
R285
100K_04
BAT_VOLT
C510
1u_6.3V_X5R_04
KBC_WRESET#
AC_IN#
C279
0.1u_16V_Y5V_04
C302
0.1u_16V_Y5V_04
D04
12/19
RN23
KBC_SPI_SCLK_R
8
1
KBC_SPI_SCLK
KBC_SPI_SO_R
7
2
KBC_SPI_SO
6
3
KBC_SPI_SI_R
KBC_SPI_SI
KBC_SPI_CE#_R
5
4
KBC_SPI_CE#
33_8P4R_04
6-16-33038-45A
D 04
12/15
VDD3
C508
32Mbit
KBC_SPI_*_R = 0.1"~0.5"
0.1u_16V_Y5V_04
U19
8
5
KBC_SPI_SI_R
VDD
SI
2
KBC_SPI_SO_R
SO
1
KBC_SPI_CE#_R
CE#
R323 1K_04
6
KBC_SPI_SCLK_R
3
SCK
KBC_FLASH
WP#
R304 4.7K_04
7
4
KBC_HOLD#
HOLD#
VSS
EN25Q32B
M-SOP8B
6-04-02532-491
Share ROM ¥Î¦¹®Æ
KBC_SPI_SI
C333 *33p_50V_NPO_04
KBC_SPI_SO
C334 *33p_50V_NPO_04
KBC_SPI_CE#
It will be removed after PVT phase
C318 *33p_50V_NPO_04
KBC_SPI_SCLK
C332 *33p_50V_NPO_04
D 04
12/15
3IN1
R272
*20K_04
[13,22,23,24,26,30,31,32,34,38]
VDD3
3.3VS
VDD3
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