W78E052DDG Nuvoton Technology Corporation of America, W78E052DDG Datasheet - Page 75

• Manufacturer Part Number: W78E052DDG
• Description: IC MCU 8-BIT 8K FLASH 40-DIP
• Manufacturer: Nuvoton Technology Corporation of America
• Series: W78r

Specifications of W78E052DDG

• Core Processor: 8052
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: EBI/EMI, UART/USART
• Peripherals: POR, WDT
• Number Of I /o: 36
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.4 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 40-DIP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

21.4 TIMING waveforms
21.4.1 Program Fetch Cycle
21.4.2 Data Read Cycle
PORT 2
PORT 0
PSEN
XTAL1
ALE
WR
PORT 2
PORT 0
PSEN
XTAL1
ALE
Code
S4
S1
T
AAH
A0-A7
S5
A0-A7
S2
T
T
DAW
AAS
S6
T
T
S3
PDA
APL
T
PSW
Data
T
DAD
A8-A15
S1
W78E054D/W78E052D/W78E051D Data Sheet
S4
DATA OUT
T
A0-A7
DWR
T
S2
S5
PDH,
- 75 -
T
ALW
T
PDZ
S6
S3
Code
S1
S4
A0-A7
S2
T
Publication Release Date: Dec 29, 2009
S5
DWD
S3
S6
Data
S4
S1
A0-A7
S5
S2
Revision A09
S6
S3