
UM016905-1207 Schematics
MDS General-Purpose Board Development Kit
User Manual
28
Figure 19. MDS-GP Board Schematic (4 of 8)
5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
BUZZER, KEYPAD, LCD, I2C TEMP. SENSOR
HANTRONIX
16x2
96C0943-001
B
MDS General Pur
ose Platform
ZiLOG, Inc.
532 Race Street
San Jose, CA 95126
B
48Wednesda
, A
ril 28, 2004
Title
Size Document Number Rev
Date: Sheet of
COL2
COL1
ROW1
COL0
ROW3
ROW0
ROW2
LCDD7
LCDD5
LCDnEN
LCD_RS
LCD_RDnWR
LED_YEL
LED_GRN
LED_RED
LED_RED
LED_YEL
LED_GRN
LCD_nEN
LCD_D4
LCD_D5
LCD_D6
LCD_D7
VCC_33V
PB
0:7
PB1
COL0
PB2
COL1
PB3
COL2
PB4
ROW0
PB5
ROW1
PB6
ROW2
PB7
ROW3
PC7
BUZZER
PC6 LCD_RS
VCC_33V
VCC_33V
VCC_33V
VCC_33V
ROW0
ROW1
ROW2
ROW3
VCC_33V
GND
I2CSCL
I2CSDA
VCC_33V
LCD_D4
LCD_D5
LCD_D6
LCD_D7
LCD_nEN
GPIO_nEN
GPIO_nEN
GND
LCDD4
LCDD6
GND
VCC_33V
VCC_33V
PD6
GND
PB0 LCD_RDnWR
VCC_5V
VCC_5V
VCC_33V
D3
LED_GRN
D2
LED_YEL
R33
10K
R56
680
K2
SW_PB
1 3
R24
1K
R27
10K
K5
SW_PB
1 3
U7C
74LVC04/SO
5 6
147
R31
4.7K
R28
10K
R65
56.2
R44
10K
R22
680
R26
10 K
1 3
2
R34
10K
K3
SW_PB
1 3
R32
10K
K12
SW_PB
1 3
R19
330
J30
Header 3
1
2
3
Q2
2N2222A
1
3
2
U11B
TC74LVT125
5 6
14
4
7
R45
10K
J12
CON16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
K1
SW_PB
1 3
R50
1K
K7
SW_PB
1 3
R20
10K
J28
Header 3
1
2
3
U13
PCA9554
1
2
3
4
5
6
7
8 9
10
11
12
13
14
15
16
A0
A1
A2
D0
D1
D2
D3
GND D4
D5
D6
D7
INT
SCL
SDA
VCC
K6
SW_PB
1 3
Q1
2N2222A
1
3
2
K4
SW_PB
1 3
U29
74CBTLV3384A/SO
1
1213
24
2
5
6
9
10
16
15
19
20
23
3
4
7
8
11
14
17
18
21
22
1OE
GND2OE
VCC
1B1
1B2
1B3
1B4
1B5
2B2
2B1
2B3
2B4
2B5
1A1
1A2
1A3
1A4
1A5
2A1
2A2
2A3
2A4
2A5
U14
74LV30/SO
8
1
2
3
4
5
6
11
12
147
J13
HEADER 13
1
2
3
4
5
6
7
8
9
10
11
12
13
N
M
L
K
J
H
G
F
E
D
C
B
A
R30
4.7K
J26
HEADER 2
1
2
R23
10K
K11
SW_PB
1 3
BZ1
Buzzer
1
2
U7B
74LVC04/SO
3 4
147
R48
10K
D1
LED_RED
21
R21
680
K9
SW_PB
1 3
R29
4.7K
R25
10K
U15
MAX6625P
1
2
3 4
5
6
SDA
GND
SCL OT
ADD
VCC
K10
SW_PB
1 3
K8
SW_PB
1 3
I2CSDA
I2CSCL
PB
0:7
PD4
PA4
PA5
PA6
PA7
PC7
PC6
PD5
PD6
PC4
PD7
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