W78E052DDG Nuvoton Technology Corporation of America, W78E052DDG Datasheet - Page 15

• 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: -

W78E054D/W78E052D/W78E051D Data Sheet
Figure 8- 2 W78E054D/W78E052D/W78E051D RAM and SFR Memory Map
Since the scratch-pad RAM is only 256bytes it can be used only when data contents are small. There
are several other special purpose areas within the scratch-pad RAM. These are illustrated in next fig-
ure.
Publication Release Date: Dec 29, 2009
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Revision A09