W78E051C40DL Nuvoton Technology Corporation of America, W78E051C40DL Datasheet - Page 19

• Manufacturer Part Number: W78E051C40DL
• Description: IC MCU 8-BIT 4K FLASH 40-DIP
• Manufacturer: Nuvoton Technology Corporation of America
• Series: W78r

Specifications of W78E051C40DL

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: EBI/EMI, UART/USART
• Peripherals: POR, WDT
• Number Of I /o: 32
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 40-DIP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

9. TYPICAL APPLICATION CIRCUITS
9.1 Expanded External Program Memory and Crystal
Note: C1, C2, R components refer to Figure A.
8.2 K
V
DD
10 u
C1
CRYSTAL
CRYSTAL
16 MHz
24 MHz
33 MHz
40 MHz
Above table shows the reference values for crystal applications (full gain).
C2
V
DD
R
12
13
14
15
18
31
19
9
7
8
1
2
3
4
5
6
W78E51C/W78E051C
XTAL2
XTAL1
RST
INT1
T0
T1
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
INT0
P1.0
EA
PSEN
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
P2.0
P2.1
P2.2
P2.3
P2.4
P2.5
P2.6
P2.7
RXD
ALE
TXD
WR
RD
39
38
37
36
28
35
21
22
23
24
25
26
27
34
33
32
17
16
29
30
11
10
30P
15P
10P
Figure A
AD1
AD2
AD3
AD4
AD5
AD6
5P
AD0
AD7
C1
A9
A10
A11
A12
A14
A15
A8
A13
- 19 -
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
GND
13
14
17
18
11
4
7
8
3
1
74373
Publication Release Date: November 10, 2006
D0
D1
D2
D3
D4
D5
D6
D7
G
OC
W78E51C/W78E051C
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
12
15
16
19
2
5
6
9
30P
15P
10P
C2
5P
A0
A1
A2
A3
A4
A5
A6
A7
GND
A10
A13
A11
A12
A14
A15
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
27
20
22
10
25
24
21
23
26
2
9
8
7
6
5
4
1
3
27512
OE
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
CE
O0
O1
O2
O3
O4
O5
O6
O7
6.8K
4.7K
R
11
12
13
15
16
17
18
19
-
-
Revision A4
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7