The W78E516D/W78E058D series is an 8-bit microcontroller which has an in-system programmable
Flash EPROM for on-chip firmware updating.
The instruction sets of the W78E516D/W78E058D are fully compatible with the standard 8052.
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 2-level interrupt
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.
• Fully static design 8-bit CMOS microcontroller
• Optional 12T or 6T mode
12T Mode, 12 clocks per machine cycle operation (default), Speed up to 40 MHz/5V
6T Mode, 6 clocks per machine cycle operation set by the writer, Speed up to 20 MHz/5V
• Wide supply voltage of 2.4 to 5.5V
• Temperature grade is (-40o
• 64K/32K bytes of in-system programmable FLASH EPROM for Application Program (APROM)
• 4K bytes of auxiliary FLASH EPROM for Loader Program (LDROM)
• Low standby current at full supply voltage
• 512 bytes of on-chip RAM. (include 256 bytes of AUX-RAM, software selectable)
• 64K bytes program memory address space and 64K bytes data memory address space
• One 4-bit multipurpose programmable port, additional INT2 /INT3
• Support Watch Dog Timer
• Three 16-bit timer/counters
• One full duplex serial port
• 8-sources, 2-level interrupt capability
• Software Reset
• Built-in power management with idle mode and power down mode
• Code protection
New and Original in the stock, Welcome to send the request to us!
Contact us if you have any questions or need help.
LINGCHENG makes your dream comes true.