Holtek ESK32-A2A31, User Manual

Page: 11 / 12

2.8 Inches TFT LCD Module – ESK32-A2A31
Mount only for SPI interface Mount only for parallel interface
0 0 0 80-System 16-bit
Ⅰ
IM2 IM1 IM0 Interface Mode
0 0 1 80-System 8-bit
Ⅰ
1 0 ID 3-Wire serial
Ⅰ
1 1 X 4-Wire serial
Ⅰ
LE
D
_A
P
D0
P
D1
P
D2
P
D3
P
D4
P
D5
P
D6
P
D7
P
D8
P
D9
P
D1
1
P
D1
2
P
D1
3
P
D1
4
P
D1
5
P
D1
6
P
D1
7
S
DI
W
R/
S
CL
/RD /R
ESET
RS /CS
WR/SCL
/CS
/RD
RS
EN
/CS
PD0
PD2
PD4
PD6
PD8
PD10
PD12
PD14
PD16
/RD
RS
PD17
PD15
PD13
PD11
PD9
PD7
PD5
PD3
PD1
/RESET
WR/SCL
SDI
SDO
S
DO
LE
D
_K
1
LE
D
_K
2
LE
D
_K
3
LE
D
_K
4
P
D1
0
P
D1
5
P
D1
4
P
D1
3
P
D1
2
P
D1
1
P
D1
0
P
D9
P
D8
P
D7
P
D6
P
D5
P
D4
P
D3
P
D2
P
D1
P
D0
P
D1
6
P
D1
7
LED_A
EN
LED_K1
LED_K2
LED_K3
LED_K4
VDD33
VDD33
VDD33
VDD33
RN1
RP4K7
RN1
RP4K7
1
8
2
7
3
6
4
5
R3
10K/5%/0603
R3
10K/5%/0603
R8 75/5%/0603 R8 75/5%/0603
C3
1uF/0603
C3
1uF/0603
C2 1uF/0603 C2 1uF/0603
R
1
4K
7/0603
R
1
4K
7/0603
R11 75/5%/0603 R11 75/5%/0603
R7
4K7/0603 R7
4K7/0603
U1
HT7936
U1
HT7936
VOUT
1
GND
2
EN
3
C-
4
VIN
5
C+
6
CN2
LCM HEADER 17X2
CN2
LCM HEADER 17X2
VDD5
1
GND0
2
BL_EN
3
I2C_SDA
4
I2C_SCL
5
WR/SCL
6
MISO
7
MOSI
8
/CS
9
PENIRQ
10
NC0
11
/RESET
12
GND1
13
VDD33
14
PD0
15
PD1
16
PD2
17
PD3
18
PD4
19
PD5
20
PD6
21
PD7
22
PD8
23
PD9
24
PD10
25
PD11
26
PD12
27
PD13
28
PD14
29
PD15
30
PD16
31
PD17
32
/RD
33
RS
34
RN2
RP4K7
RN2
RP4K7
1
8
2
7
3
6
4
5
SW1
SW DIP-4
SW1
SW DIP-4
R10 75/5%/0603 R10 75/5%/0603
R9 75/5%/0603 R9 75/5%/0603
RN5
RP4K7
RN5
RP4K7
1
8
2
7
3
6
4
5
C1
1uF/0603 C1
1uF/0603
RN3
RP4K7
RN3
RP4K7
1
8
2
7
3
6
4
5
R5
4K7/0603 R5
4K7/0603
R4
4K7/0603 R4
4K7/0603
R
2
4K
7/0603
R
2
4K
7/0603
+
C4
10uF/CASE-A
+
C4
10uF/CASE-A
RN4
RP4K7
RN4
RP4K7
1
8
2
7
3
6
4
5
CN1
TFT3P4263 /40PIN
CN1
TFT3P4263 /40PIN
L
E
DA
1
L
ED
K1
2
L
ED
K2
3
L
ED
K3
4
L
ED
K4
5
IM
0
6
IM
1
7
IM
2
8
IM
3
9
/R
ESET
10
DB
1
7
11
DB
1
6
12
DB
1
5
13
DB
1
4
14
DB
1
3
15
DB
1
2
16
DB
1
1
17
DB
1
0
18
DB
9
19
DB
8
20
DB
7
21
DB
6
22
DB
5
23
DB
4
24
DB
3
25
DB
2
26
DB
1
27
DB
0
28
S
DO
29
S
DI
30
RD
31
W
R/
S
CL
32
RS
33
CS
34
FM
A
R
K
35
IO
V
CC
36
V
CC
37
V
CI
38
G
ND
39
NC
40
R6
4K7/0603 R6
4K7/0603
Figure 6. 2.8 Inches TFT LCD Module (ESK32-A2A31) Schematic