W78E516DPG Nuvoton Technology Corporation of America, W78E516DPG Datasheet - Page 3

• Manufacturer Part Number: W78E516DPG
• Description: IC MCU 8-BIT 64K FLASH 44-PLCC
• Manufacturer: Nuvoton Technology Corporation of America
• Series: W78r

Specifications of W78E516DPG

• 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: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 44-PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

Preliminary W78E516D/ W78E058D Data Sheet
1
GENERAL DESCRIPTION
The W78E516D/W78E058D series is an 8-bit microcontroller which has an in-system programmable
Flash EPROM for on-chip firmware updating. The instruction set of the W78E516D/W78E058D is fully
compatible with the standard 8052. The W78E516D/W78E058D series contains a 64K/32K bytes of
main Flash EPROM and a 4K bytes of auxiliary Flash EPROM which allows the contents of the
64K/32K bytes main Flash EPROM to be updated by the loader program located in the 4K bytes Flash
EPROM; a 256 bytes of SRAM; 256 bytes of AUXRAM; four 8-bit bi-directional and bit-addressable
I/O ports; an additional 4-bit port P4; three 16-bit timer/counters; a serial port. These peripherals are
supported by an 8 sources two-level interrupt capability. To facilitate programming and verification, the
Flash EPROM inside the W78E516D/W78E058D series allows the program memory to be
programmed and read electronically. Once the code is confirmed, the user can protect the code for
security.
The W78E516D/W78E058D series microcontroller has two power reduction modes, idle mode and
power-down mode, both of which are software selectable. The idle mode turns off the processor clock
but allows for continued peripheral operation. The power-down mode stops the crystal oscillator for
minimum power consumption. The external clock can be stopped at any time and in any state without
affecting the processor.
Publication Release Date: July 30, 2008
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Revision A01