Table of Contents
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KBC-ITE IT8518
R 50 1
*1 5 m i l _ s ho rt _ 0 6
V D D 3
C 7 4 1
C 7 4 2
CD 3 /8
*0 . 1 u_ 1 6 V _Y 5 V _0 4
1 0u _ 1 0V _Y 5 V _0 8
L 1 18
H C B 1 00 5 K F -1 2 1T 2 0
3 . 3 V S
7 , 1 1
LP C _ A D 0
7 , 1 1
LP C _ A D 1
7 , 1 1
LP C _ A D 2
7 , 1 1
LP C _ A D 3
7 , 8
L P C _ C L K 0
R 7 8 5
*0 _0 4
7 , 1 1, 1 6 , 1 7, 1 9
B U F _P LT _ R S T #
7 , 11
L P C _F R A ME #
7 , 1 1
S E R I R Q
R 7 8 6
0_ 0 4
7 , 1 2
E C _R S T #
8
GA 2 0
8 , 2 2, 2 9
A C _I N #
2 1
L E D _ A C I N
3 , 9
A P U _ T A L E R T #
8 , 1 9
E C _ S MI #
8
E C _ S C I #
1 7 , 2 1
W LA N _ E N
1 8
K B C _ MU TE #
2 2
C P U _ F A N
2 2
W E B _ E MA I L #
C 8 5 5
0. 1u _ 1 6V _ Y 5V _ 0 4
2 9
B A T _ D E T
2 9
B A T _ V OL T
2 2
A P _ K E Y #
2
T H E R M_ V OL T
F or c har ge r 3 /17
2 9
T O TA L _ C U R
1 5
3 G_ D E T #
1 5
C C D _ D E T #
S M C _ B A T
29
S MC _ B A T
S M D _ B A T
29
S MD _ B A T
Del ? ? VGA 3/8
R 7 08
3, 8 , 9
S M C _ C P U _T H E R M
R 7 09
3, 8 , 9
S M D _ C P U _T H E R M
H _P E C I
R 5 23
L C D _ B R I G H T N E S S
K B C _ B E E P
18
K B C _ B E E P
21
L E D _S C R O LL #
2 1
L E D _N U M #
2 1
LE D _ C A P #
2 1
L E D _ B A T _C H G
21
L E D _ B A T _ F U L L
Pin87 3IN1 mult i
2 1
L E D _ P W R
f unc tion pin
1 7
8 0C LK
17 , 2 1
B T _ D E T #
R 7 87
1K _ 0 4
80 D E T#
1 7
3 I N 1
2 2
W E B _ W W W #
2 2
T P _ C L K
2 2
T P _ D A T A
1 5
3 G_ E N
2 3
P W R _ S W #
8 , 1 3, 2 2
L I D _S W #
8
P W R _ B T N #
Del ? ? VGA 3/8
R 8 29
1 7, 2 1
W L A N _ L E D #
1 7
W L A N _ D E T #
WEB1# --- WE B_ EM A IL #
WEB2# --- WE B_ WWW#
Valu e m o dify 3/2 3
0_ 04 FO R IT 851 2C X/ EX
0. 1U_ 04 F OR IT E8 51 2- J(I TE 85 02 -J
W /0 C IR)
EC Co st D ow n
R 5 3 5
* 10 m i l _ s ho rt _ 0 4
L C D _ B R I G H T N E S S
1 2 , 1 3
B R I G H T N E S S
C 7 5 6
*0 . 1 u_ 1 6 V _Y 5 V _0 4
CD 3 /8
K B C _ A V D D
L 11 7
H C B 1 00 5 K F -1 2 1T 2 0
C 7 43
C 7 4 4
C 74 7
C 85 6
C 7 45
0 . 1 u _1 6 V _ Y 5 V _ 0 4
*0 . 1 u_ 1 6 V _Y 5 V _ 04
0 . 1 u_ 1 6 V _Y 5 V _ 04
0 . 1 u_ 1 6 V _Y 5 V _0 4
* 0 . 1u _ 1 6V _ Y 5V _0 4
C 7 4 8
0 . 1u _ 1 6V _ Y 5V _0 4
K B C _ A GN D
E C _ V C C
U 3 8
1 0
5 8
K B -S I 0
L A D 0
K S I 0 / S T B #
9
5 9
K B -S I 1
8
L A D 1
K S I 1/ A F D #
6 0
K B -S I 2
L A D 2
K S I 2 / I N I T #
7
6 1
K B -S I 3
1 3
L A D 3
K S I 3 / S L I N #
6 2
K B -S I 4
L P C C L K
K S I 4
6
6 3
K B -S I 5
5
L F R A M E #
K S I 5
6 4
LPC
K/B MATRI X
K B -S I 6
S E R I R Q
K S I 6
2 2
6 5
K B -S I 7
L P C R S T #/ W U I 4 / GP D 2 ( P U )
K S I 7
K B C _ W R E S E T #
1 4
3 6
K B -S O0
W R S T#
K S O 0/ P D 0
3 7
K B -S O1
K S O 1/ P D 1
GA 2 0
12 6
3 8
K B -S O2
4
G A 20 / G P B 5
K S O 2/ P D 2
3 9
K B -S O3
K B R S T #/ G P B 6 ( P U )
K S O 3/ P D 3
1 6
4 0
K B -S O4
2 0
P W U R E Q #/ GP C 7 ( P U )
K S O 4/ P D 4
4 1
R 7 9 7
0 _0 4
K B -S O5
L 8 0L L A T / GP E 7 ( P U )
K S O 5/ P D 5
4 2
K B -S O6
2 3
K S O 6/ P D 6
4 3
( S M I # )
K B -S O7
E C S C I # / GP D 3 ( P U )
K S O 7/ P D 7
( S C I # )
1 5
4 4
K B -S O8
E C S MI # / GP D 4 ( P U )
K S O 8/ A C K #
4 5
K B -S O9
K S O 9 / B U S Y
4 6
K B -S O1 0
DAC
7 6
K S O1 0 / P E
5 1
W L A N _ E N
K B -S O1 1
G P J0
K S O 11 / E R R #
7 7
5 2
K B -S O1 2
7 8
G P J1
K S O1 2 / S L C T
5 3
ME _ W E #
K B -S O1 3
D A C 2 / GP J 2
K S O1 3
C P U _F A N
7 9
5 4
K B -S O1 4
8 0
D A C 3 / GP J 3
K S O1 4
5 5
( W E B 1 # )
IT8518
K B -S O1 5
D A C 4 / GP J 4
K S O1 5
V GA _ F A N
8 1
D A C 5 / GP J 5
ADC
FLASH
6 6
1 00
B A T _D E T
( 3G _ P W R _ E N )
A D C 0 / GP I 0
F L F R A ME # / G P G2
B A T _V O L T
6 7
1 01
K B C _ S P I _ C E #
6 8
A D C 1 / GP I 1
F L A D 0/ S C E #
1 02
( A P K E Y # )
K B C _ S P I _ S I
A D C 2 / GP I 2
F LA D 1 / S I
6 9
1 03
K B C _ S P I _ S O
7 0
A D C 3 / GP I 3
F L A D 2 / S O
1 04
V C H G _S E L
A D C 4 / GP I 4
F L A D 3 / G P G6
3G _ D E T #
7 1
1 05
K B C _ S P I _ S C L K
7 2
A D C 5 / GP I 5
F L C L K / S C K
1 06
C C D _ D E T #
A D C 6 / GP I 6
( P D )F LR S T #/ W U I 7 / GP G 0 / TM
MO D E L _ I D
7 3
A D C 7 / GP I 7
GPIO
SMBUS
5 6
11 0
( P D )K S O 16 / G P C 3
5 7
S M C L K 0 / GP B 3
( P D )K S O 17 / G P C 5
11 1
11 5
S M D A T 0 / GP B 4
9 3
S M C L K 1 / GP C 1
( P D )GP H 0 / I D 0
11 6
9 4
11 7
S M D A T 1 / GP C 2
( P D )GP H 1 / I D 1
9 5
0 _0 4
S M C L K 2 / GP F 6 ( P U )
( P D )GP H 2 / I D 2
0 _0 4
11 8
9 6
S M D A T 2 / GP F 7 ( P U )
( P D )GP H 3 / I D 3
9 7
*0 _ 0 4
( P D )GP H 4 / I D 4
PWM
9 8
2 4
( P D )GP H 5 / I D 5
9 9
P W M 0/ GP A 0 ( P U )
( P D )GP H 6 / I D 6
( B E E P )
2 5
1 07
2 8
P W M 1/ GP A 1 ( P U )
( P D )GP G 1 / I D 7
P W M 2/ GP A 2 ( P U )
2 9
EXT GPIO
3 0
P W M 3/ GP A 3 ( P U )
8 2
R 7 1 5
P W M 4/ GP A 4 ( P U )
( P D )E G A D / G P E 1
3 1
8 3
3 2
P W M 5/ GP A 5 ( P U )
( P D )E GC S #/ G P E 2
8 4
P W M 6/ GP A 6 ( P U )
( P D )E GC LK / G P E 3
3 4
P W M 7/ GP A 7 ( P U )
WAKE UP
3 5
PS/2
8 5
( P D )W U I 5/ G P E 5
1 7
80 C LK
P S 2 C L K 0 / G P F 0( P U )
( P D )L P C P D # / W U I 6/ G P E 6
8 6
8 7
P S 2 D A T0 / G P F 1( P U )
( 8 0 P OR T _ D E T# )
PWM/COUNT ER
P S 2 C L K 1 / G P F 2( P U )
( W E B 2 # )
8 8
4 7
8 9
P S 2 D A T1 / G P F 3( P U )
( P D )TA C H 0 / G P D 6
4 8
V G A _ F A N S E N
P S 2 C L K 2 / G P F 4( P U )
( P D )TA C H 1 / G P D 7
9 0
P S 2 D A T2 / G P F 5( P U )
1 20
( P D )T MR I 0 / W U I 2 / G P C 4
1 24
( P M _P W R O K )
WAKE UP
12 5
( P D )T MR I 1 / W U I 3 / G P C 6
R 7 1 0
P W R S W / GP E 4( P U )
CIR
1 8
1 19
C E L L _C ON T R OL
R I 1# / W U I 0/ GP D 0 ( P U )
( P D )C R X / G P C 0
2 1
1 23
R I 2# / W U I 1/ GP D 1 ( P U )
( P D )C T X/ G P B 2
GP INTE RRUPT
LPC/WAKE UP
3 3
1 9
G I N T / GP D 5 ( P U )
( P D )L 8 0H L A T/ G P E 0
S W I #
1 12
C H G_ E N
( P D )R I N G # / P W R F A I L# / L P C R S T #/ G P B 7
UART
10 8
*0 _ 0 4
CLOCK
R XD / GP B 0 ( P U )
10 9
2
C K 32 K E
T X D / GP B 1( P U )
C K 3 2 K E
1 28
C K 32 K
C K 3 2 K
R 5 3 1
I T 8 5 18 E V E R : C
R 5 3 3
* 0_ 0 4
E C _ V S S
R 53 4
*1 0 m i l _ s ho rt
1
2
C 7 5 3
0 . 1u _ 1 6V _ Y 5V _ 0 4
C 7 54
*1 2p _ 5 0V _N P O_ 0 4
N C 2
S H OR T
*M C -1 4 6 _3 2 . 7 68 K H z
6- 22 -3 2R 76- 0B 4
K B C _A GN D
R53 4 Fo r I T85 18 BX&
IT8 51 9BX Onl y.
V D D 3
80PORT
V D D 3
J _ 80 D E B U G 1
C 7 46
5
3 I N 1
4
* 0 . 1u _ 1 6V _ Y 5V _ 0 4
8 0 C L K
3
R 5 1 4
*1 0 K _ 04
2
1
* 85 2 05 -0 5 0 01
1
24
J_KB 1
FOR W24/W27
FOR W25
J _ K B 1
J _ K B 2
8 52 0 1 -24 0 5 1
*8 5 20 1 -2 40 5 1
EC MOD ULE CHOOS E (FOR DIFFEREN CE K/B TY PE)
4
4
K B -S I 0
5
K B -S I 1
5
V ER.
R50 3 / R5 04
6
6
K B -S I 2
8
K B -S I 3
8
W 24 D0 3
1 0K / X
1 1
1 1
K B -S I 4
1 2
K B -S I 5
1 2
W 24 D0 3
X / 1 0K
1 4
1 4
K B -S I 6
1 5
K B -S I 7
1 5
W 24 D0 3
10K / 1 0K
1
K B -S O0
1
W 27 D0 1
2 .4 9K / 7. 5K
2
2
K B -S O1
3
K B -S O2
3
W 27 D0 1
60 K / 10K
7
7
K B -S O3
9
K B -S O4
9
W 27 D0 1
20K / 1 0K
1 0
1 0
K B -S O5
1 3
K B -S O6
1 3
W 27 D0 1
10K / 2 0K
1 6
1 6
K B -S O7
1 7
K B -S O8
1 7
1 8
1 8
K B -S O9
1 9
K B -S O1 0
1 9
MO D E L _ I D
2 0
2 0
K B -S O1 1
2 1
K B -S O1 2
2 1
2 2
2 2
K B -S O1 3
2 3
K B -S O1 4
2 3
Mo dify 3/2 2
2 4
2 4
K B -S O1 5
V D D 3
3 G_ P O W E R 1 5
Pin100 ,104&106 EXT ? ? Pull h i
S MD _ B A T
R 8 0 8
2. 2 K _ 0 4
& Pull L ow .
S MC _ B A T
R 8 0 9
2. 2 K _ 0 4
M odify 3 /16
C C D _ E N
1 5
W L A N _ L E D #
S U S B #
8 , 1 1 , 12 , 1 9 , 23
S U S C #
8 , 2 3 , 25
E C _ R E S E T 2 9
B T _E N
1 7 , 2 1
F or cha rge r 3 /17
B K L _E N
1 3
H S P I _ C E # 9
V D D 3
H S P I _ S C LK 9
U 3 7
H S P I _ MS O 9
8
5
H S P I _ MS I 9
V D D
S I
2
D D _ ON
22 , 2 3 , 2 4
S O
1
C E #
6
3
S C K
* 0 _0 4
K B C _ F L A S H
U S B _ P W R _E N # 2 2
W P #
OC P P E #
1 9
Mo dify 3 /17
I C P P E #
1 9
7
4
K B C _ H O LD #
H OL D #
V S S
R S M R S T _ GA T E # 8
*A T 2 5F 5 1 2 A N
K B C _ R S T # 8
U37 U39 Co-layo ut
C P U _F A N S E N
22
V D D 3
V C O R E _ ON
2 8
C 7 5 2
For 85 12E
KBC_SPI_*_R = 0.1"~0.5"
A LL _ S Y S _P W R GD
1 1, 1 3
0 _ 0 4
0 . 1 u_ 1 6 V _ Y 5 V _ 04
3/1 6
U 3 9
8
5
K B C _ S P I _ S I _ R
LA N _ P C I E _ W A K E # 1 6
V D D
S I
Mod ify 3/1 7
? ? ?
2
K B C _ S P I _ S O _R
S O
R 5 2 8 1 K _ 0 4
8
K B C _ F L A S H
3
1
K B C _ S P I _ C E #_ R
W P #
C E #
3/1 6
6
K B C _ S P I _ S C LK _ R
S C K
R 5 3 2 4 . 7 K _ 04
K B C _ H O LD #
7
4
H OL D #
V S S
*1 0 M_ 0 4
U3 7 U39 Co- layout
MX 2 5L 1 60 6 E M 2I -1 2 G
X 1 0
Va lue m od ify 3 /23
4
C K 3 2 K E
3
C 7 55
C K 3 2 K
C o- lay ou t X2 , X 3
* 12 p _ 50 V _ N P O_ 0 4
1
4
X1 1
2
3
*1 T JS 1 2 5 D J 4 A 42 0 P _ 3 2. 7 6 8 K H z
6- 22- 32 R7 6- 0B2
6- 22- 32 R7 6- 0BG
Schematic Diagrams
V D D 3
R 5 0 2
1 00 K _ 0 4
80 D E T#
K B C _ W R E S E T#
C 7 4 9
1 u_ 6 . 3 V _X 5 R _ 0 4
V OL TA GE
MO DE L_I D
3. 3V
W240BU
0 V
W251BUQ
1. 65 V
W251BAQ
2. 5V
W270BUQ(O2)
Sheet 20 of 43
0. 47 V
W240BUQ(O2)
1. 1V
W251BUQ(O2)
KBC-ITE IT8518
2. 2V
Reserve
R 5 0 3
2 . 49 K _ 1 % _0 4
V D D 3
R 5 0 4
7 . 5K _ 1 % _ 04
V D D 3
3G _ D E T #
R 5 05
1 0 K _ 04
C C D _ D E T #
R 5 06
1 0 K _ 04
3. 3V S
R 5 07
* 10 K _ 0 4
B A T _ V OL T
C 7 51
1 u_ 6 . 3 V _X 5 R _ 0 4
K B C _ S P I _ S I _ R
K B C _ S P I _ S O _R
K B C _ S P I _ C E #_ R
K B C _ S P I _ S C LK _ R
For 8502E
R 5 26
4 7 _ 04
K B C _ S P I _ S I
R 5 27
1 5 _ 1% _ 0 4
K B C _ S P I _ S O
R 5 29
1 5 _ 1% _ 0 4
K B C _ S P I _ C E #
R 5 30
4 7 _ 04
K B C _ S P I _ S C L K
KBC-ITE IT8518 B - 21
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