Schematic Diagrams
KBC-ITE IT8502E B - 23
B.Sch
e
m
a
tic D
iag
rams
KBC-ITE IT8502E
Sheet 22 of 37
KBC-ITE IT8502E
KBC_AGN D
KBC_ AGND
KBC_AVDD
VDD3
VDD 3
VDD3
VDD3
3.3 VS
VDD3
VD D3
VD D3
VDD3
VD D3
VDD 3
VDD3
VDD3
VDD3
VDD3
1 2,2 4, 25, 26, 27 ,30
3. 3VS
5 ,8, 9, 10, 11, 12 ,13 ,14 ,1 5,1 7,1 8, 19, 20, 21, 23 ,24 ,25 ,2 9
BAT_VO LT
30
CH G_C UR
30
BAT_D ET
30
CPU_ FAN
24
L PC _AD3
1 2, 19
L PC _AD2
1 2, 19
L PC _AD1
1 2, 19
L PC _AD0
1 2, 19
BUF_PL T_R ST#
1 3,1 9, 20, 23
SERI RQ
1 4, 19
L PC_FRAME#
12 ,19
PCL K_ KBC
1 7
KBC _MU TE#
2 1
SMD _BAT
30
SMC _BAT
30
L ED_C AP#
2 3
LED_ SCROLL#
23
KBC_ BEEP
2 1
LED _NUM#
2 3
TP_ CLK
2 4
TP_ DATA
2 4
LED_ BAT_CHG #
2 4
LED_ BAT_FULL #
2 4
LED_PWR #
2 4
LED _ACIN #
2 4
AC _IN #
3 0
PW R_SW#
2 5
ENTERKEY#
1 8
POPMENU #
1 8
L ID_ SW #
1 8, 23
THERM_ALERT#
2
CHG _EN 3 0
SUSB#
1 6, 19, 25, 27
SUSC#
1 4
SWI#
1 4
VCOR E_ ON 29
PWR_ BTN# 1 4
RSMR ST# 14 ,16
CPU_ FAN SEN 2 4
SCI#
1 4
SMI#
1 4
WLAN _DET# 19
BT_D ET# 2 3
DD_ ON
2 5, 26
CCD _EN 2 3
CCD_ DET#
2 3
3 G_D ET#
2 3
TOTAL_ CUR
30
BR IGH TNESS
18
3G_ EN
2 3, 24
SMD_ CPU_ THERM
2
SMC_ CPU_ THERM
2
CL_ PWROK 5, 14 ,16 ,18
WLAN_ PWR
1 9
G A2 0
12
CIR _RX
18
L_BK_C TR
5
PME#
1 3
BT_EN
2 3, 24
BKL_EN
1 8
W LAN_EN
1 9, 24
PM_C LKRUN # 14, 19
SMC_MD MSIC
24
SMD_MEMSI C
24
DOC K_ON 2 3
HOL D_SW# 23
ICH _KBC_R ST# 12
AC_PRESENT 1 4
WDT_EN 1 9
3 G_PWR
2 3
SUS_PW R_ACK
14
3 IN1
19
8 0CL K
19
8 0DET#
19
L AN _DSM# 23
TOTAL _CUR _R
C HG_ CUR_ R
BAT_VOL T
CHG_CU R
BAT_ VOLT_R
TOTAL_C UR
PCLK_KBC
KBC _FLASH
KBC _WR ESET#
3 IN1
KBC_ SPI _CE#
KBC_SPI_ SI _R
KBC_ SPI _SCL K
KBC_SPI_ SO _R
KBC_SPI_ CE#_R
KBC_ SPI _SO
KBC_SPI_ SC LK_R
KBC_ SPI _SI
C PU_FAN_R
BLK_EN
BT_EN
LPC_ AD 2
LPC_ AD 1
LPC_ AD 3
LPC_ AD 0
BUF_PLT_RST#
LPC_ FR AME#
SER IRQ
PCLK_KBC
KB-SI3
KB-SI2
KB-SO5
KB-SI1
KB-SO3
KB-SO4
KB-SO1 1
KB-SI6
KB-SI4
KB-SO8
KB-SO7
KB-SO6
KB-SO1 4
KB-SO2
KB-SO1 5
KB-SI0
KB-SI5
KB-SO1 2
KB-SO1
KB-SO1 0
KB-SO0
KB-SI7
KB-SO9
KB-SO1 3
L CD_ BR IGH TNESS
KBC_SPI _SCLK
KBC_SPI _CE#
KBC_SPI _SI
KBC_SPI _SO
KBC _WR ESET#
KBC _MU TE#
SYS_FAN_R
WLAN_ EN
WLAN_ PWR
CPU_ FAN_ R
TOTAL_C UR_ R
BAT_DET
BAT_VOL T_R
CHG _CU R_R
SMD_ MEMSIC
SMD_BAT
SMD_ CPU_THERM
SMC_ CPU_THERM
SMC_ MDMSI C
KBC _BEEP
LED_ NUM#
LCD _BRI GHTNESS
LED_ CAP#
LED_ SC ROL L#
TP_C LK
TP_D ATA
WDT_EN
LED_ BAT_FULL #
LED_ BAT_CH G#
LED_ PW R#
LED_ AC IN#
AC_I N#
PWR_SW #
LI D_SW#
THER M_RST#
THER M_ALERT#
80C LK
3I N1
80D ET#
DOCK_ON
CH G_EN
SUSB#
SUSC#
SWI #
HOLD_ SW#
KBC_R ST#
PWR _BTN#
CL _PWR OK
SCI #
SMI #
VCORE_ON
RSMRST#
AC_ PR ESEN T
WD T_EN
WL AN_D ET#
BT_ DET#
DD _ON
CC D_EN
CCD _DET#
MOD EL _I D
3G_ DET#
TOTAL _CUR
C CD_ DET#
3 G_D ET#
3G_ PWR
3 G_EN
WD_ DISABLE
MODEL _ID
BAT_ VOLT
SMD _BAT
C HG_ CUR
H8_ GA20
BAT_ DET
WD _DI SABL E
PME#
CI R_I N
H 8_G A2 0
CI R_ IN
L_BK_C TR
R_ LAN_D SM#
SMC_BAT
SMC _BAT
KBC_RST#
POPMENU#
ENTERKEY#
SMC _CPU _TH ER M
SMD _CPU _TH ER M
KBC_ MUTE#
SUS_PWR_ ACK
8 0DET#
8 0CL K
3 IN 1
R _LAN_ DSM#
LAN_ DSM#
CPU _FANSEN
LI D_SW #
R28 7
10 K_04
U1 8
AAT3 510 IGV-2.9 3-C -C- T1
3
5
2
1
4
MR#
VCC
GND
RESET#
W DI
R2 77
1 00_ 1%_04
C 477
0 .1u _1 6V_04
R1 09
100 _04
C 479
*1u_ 6.3 V_04
D 3
BAV99
A
C
AC
R25 1
1 5_0 4
R2 67 4 .7K_ 04
R28 1
100 K_04
R 278
1 0K_0 4
D 29
BAV99
A
C
AC
C1 89
0. 1u_ 16V_ 04
R27 1
10 K_04
U6
SST25VF08 0B
1
2
3
4
5
6
7
8
CE#
SO
WP#
VSS
SI
SCK
HO LD#
VDD
D 27
BAV99
A
C
AC
R27 4
10 K_04
NC 2 SHO RT
2
1
R 137
*1 0M_ 04
R2 73
10 K_04
D 2
BAV99
A
C
AC
C 478
1u_ 6. 3V_04
C 242
1 5p_ 50V_ 04
C2 01
0 .1 u_1 0V_X7 R_0 4
Q1 8
2 N70 02W
G
D
S
R14 5
10_ 04
C48 3
0.1 u_1 0V_X7R_ 04
R27 0
4 7_0 4
C49 5
0. 1u_ 16V_0 4
R2 72
1 00_ 1%_04
R25 0
1 5_0 4
R14 1
10_ 04
C 211
*10p _50 V_04
C2 02
0. 1u_ 16 V_ 04
C48 9
30 p_5 0V_0 4
R 135
*0_0 4
R2 76
1 00_ 1%_04
C 482
*1u_ 6.3 V_04
C 243
1 5p_ 50V_ 04
D 1
BAV99
A
C
AC
C49 1
30 p_5 0V_0 4
R1 2
4 .7 K_ 04
R26 9
4 7_0 4
X4
3 2.7 68KHz
1
4
3
2
C2 17
0. 1u_ 10 V_ X7R _04
R1 24
*10 _04
R2 75
*10 K_ 04
C49 3
30 p_5 0V_0 4
R2 49 1 K_ 1%_0 4
R1 3
4 .7 K_ 04
R2 83
10 0K_04
L7
H CB16 08KF-1 21T25
C1 98
0 .1u _16 V_04
C 204
0 .1u _16 V_04
C49 2
30 p_5 0V_0 4
D 30
BAV99
A
C
AC
C4 75
10 u_1 0V_0 8
R 284
1 0K_0 4
C46 2
0. 1u_ 10V_ X7R _04
C2 08
*0.1 u_1 0V_X7R_ 04
R 279
1 0K_0 4
R1 15
120 K_1%_0 4
J_KB1
852 02-240 51
24
23
22
14
12
11
21
8
20
19
6
5
18
4
17
10
9
7
3
2
1
16
15
13
J_H 8DBG1
*8 52 04-050 01
1
2
3
4
5
C48 4
1u_ 6. 3V_04
R 144
10 K_04
R26 5
*10 K_ 04
K/B MATRIX
FLASH
LPC
SMBUS
PS/2
PWM
UART
DAC
CLOCK
I T8502E
CIR
ADC
WAKE UP
PWM/COUNTER
LPC/WAKE UP
EXT GPIO
GP INTERRUPT
WAKE UP
GPIO
U 5
I T8 502 E
14
13
10
9
8
7
6
17
5
15
23
1 26
4
58
59
60
61
62
63
64
65
36
37
38
39
40
41
42
43
44
45
46
51
52
53
54
55
11
26 50
92
11
4
12
7
121
3
74
85
86
87
120
124
22
35
1 25
18
21
112
1 09
1 08
123
88
89
90
47
48
24
25
28
29
30
31
32
34
66
67
68
69
70
71
72
73
1 12
27
49
12
2
11
3
75
2
128
79
78
77
76
83
84
82
33
20
91
81
80
16
119
56
57
93
94
95
96
97
98
99
107
1 10
1 11
1 15
1 16
1 17
1 18
100
101
102
103
104
105
106
19
WRST#
LPCC LK
LAD0
LAD1
LAD2
LAD3
LFRAME#
( PD ) LPCPD# /WU I6/ GPE6
SER IRQ
ECSMI# /GPD 4( PU )
ECSCI# /GPD 3( PU )
GA20 /GPB5
KBR ST#/ GPB6( PU )
KSI0/ STB#
KSI1/ AFD #
KSI2 /I NIT#
KSI3/ SLIN #
KSI 4
KSI 5
KSI 6
KSI 7
KSO0/ PD 0
KSO1/ PD 1
KSO2/ PD 2
KSO3/ PD 3
KSO4/ PD 4
KSO5/ PD 5
KSO6/ PD 6
KSO7/ PD 7
KSO8/ ACK#
KSO9/ BUSY
KSO1 0/PE
KSO1 1/ERR #
KSO12 /SLC T
KSO1 3
KSO1 4
KSO1 5
VC
C
VS
T
B
Y
VST
BY
VST
BY
VS
T
B
Y
VST
B
Y
VST
BY
VBAT
AV
C
C
PS2 CLK0 /GPF0( PU )
PS2 DAT0 /GPF1( PU )
PS2 CLK1 /GPF2( PU )
( PD )TMRI 0/ WUI 2/GPC 4
( PD )TMRI 1/ WUI 3/GPC 6
LPCR ST#/ WUI4 /G PD 2( PU )
( PD )WU I5/ GPE5
PWRSW/ GPE4( PU )
RI 1#/ WUI 0/GPD 0( PU )
RI 2#/ WUI 1/GPD 1( PU )
( PD )RIN G#/ PW RFAIL# /LPC RST#/ GPB7
TXD/G PB1 ( PU )
RXD /GPB0( PU )
( PD )C TX/ GPB2
PS2 DAT1 /GPF3( PU )
PS2 CLK2 /GPF4( PU )
PS2 DAT2 /GPF5( PU )
( PD ) TACH 0/GPD 6
( PD ) TACH 1/GPD 7
PWM0 /GPA0( PU )
PWM1 /GPA1( PU )
PWM2 /GPA2( PU )
PWM3 /GPA3( PU )
PWM4 /GPA4( PU )
PWM5 /GPA5( PU )
PWM6 /GPA6( PU )
PWM7 /GPA7( PU )
ADC0 /GPI 0
ADC1 /GPI 1
ADC2 /GPI 2
ADC3 /GPI 3
ADC4 /GPI 4
ADC5 /GPI 5
ADC6 /GPI 6
ADC7 /GPI 7
VS
S
VSS
VSS
VS
S
VS
S
VSS
AVSS
CK32KE
C K32K
DAC3 /GPJ3
DAC2 /GPJ2
DAC1 /GPJ1
DAC0 /GPJ0
( PD ) EGCS#/ GPE2
( PD ) EGCL K/ GPE3
( PD )EGAD/ GPE1
GI NT/ GPD5( PU )
L8 0LL AT/GPE7( PU )
VSS
DAC5 /GPJ5
DAC4 /GPJ4
PWUREQ #/GPC 7( PU )
( PD )CR X/GPC 0
( PD )KSO1 6/GPC 3
( PD )KSO1 7/GPC 5
( PD )ID 0/GPH 0
( PD )ID 1/GPH 1
( PD )ID 2/GPH 2
( PD )ID 3/GPH 3
( PD )ID 4/GPH 4
( PD )ID 5/GPH 5
( PD )ID 6/GPH 6
( PD )ID 7/GPG1
SMCL K0 /GPB3
SMDAT0 /GPB4
SMCL K1 /GPC 1
SMDAT1 /GPC 2
SMCL K2 /GPF6( PU )
SMDAT2 /GPF7( PU )
FLFR AME#/GPG2
FLAD0/ SCE#
FLAD1/ SI
FLAD2 /SO
FLAD 3/GPG6
FLC LK/SCK
( PD )FLR ST#/ WUI7 /TM/GPG0
( PD )L 80 HLAT/ GPE0
R12 5
*0_ 04
D 28
*BAV99
A
C
AC
R1 29
0 _08
C1 93
0. 1u _16 V_ 04
R11 8
10 K_04
R1 1
1 0K_0 4
D 9
*SCS75 1V-4 0
A
C
D31
SCS751 V-40
A
C
R 266
0_0 4
R14 2
4. 7K_0 4
R14 3
4. 7K_0 4
JO PEN 3
*OPEN_ 35mil
8Mbit
KBC_SPI_*_R = 0.1"~0.5"
J_K B1
1
2 4
VE R.
MOD EL_I D
3 .3V
V1 .0
RX
VOLT AGE
TN120T
HIG H
LOW ACTIVE
NEAR B ATTERY CONNE CT
6-19-31001-164-1
6-20-94A90-124
6-03-08502-0P0
6-03-35102-0D0
6-15-27002-7B5
6-06-00099-011
6-06-75140-061
6-04-25080-A70
IT8 512 E/E X -- -0 _04 OHM
C48 3 IT8 502E -J
IT8 502 E-J -- - -0. 1U_1 6V_ 04
Co- lay out
R12 5 I T85 12E/ EX
Debug Port
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