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PDF W78E051D Data sheet ( Hoja de datos )
| Número de pieza | W78E051D | |
| Descripción | 8-BIT MICROCONTROLLER | |
| Fabricantes | Nuvoton | |
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W78E054D/W78E052D/W78E051D Data Sheet
8-BIT MICROCONTROLLER
Table of Contents-
1 GENERAL DESCRIPTION .........................................................................................................4
2 FEATURES ................................................................................................................................ 5
3 PARTS INFORMATION LIST .....................................................................................................6
4 PIN CONFIGURATIONS.............................................................................................................7
5 PIN DESCRIPTIONS ................................................................................................................. 9
6 BLOCK DIAGRAM ................................................................................................................... 11
7 FUNCTIONAL DESCRIPTION..................................................................................................12
7.1 On-Chip Flash EPROM ................................................................................................12
7.2 I/O Ports....................................................................................................................... 12
7.3 Serial I/O ...................................................................................................................... 12
7.4 Timers .......................................................................................................................... 12
7.5 Interrupts...................................................................................................................... 12
7.6 Data Pointers ................................................................................................................13
7.7 Architecture...................................................................................................................13
7.7.1 ALU ............................................................................................................................ ....13
7.7.2 Accumulator ................................................................................................................... 13
7.7.3 B Register..................................................................................................................... ..13
7.7.4 Program Status Word ..................................................................................................... 13
7.7.5 Scratch-pad RAM ........................................................................................................... 13
7.7.6 Stack Pointer .................................................................................................................. 13
8 MEMORY ORGANIZATION......................................................................................................14
8.1 Program Memory (on-chip Flash) .................................................................................14
8.2 Scratch-pad RAM and Register Map ............................................................................14
8.2.1 Working Registers .......................................................................................................... 16
8.2.2 Bit addressable Locations .............................................................................................. 17
8.2.3 Stack .......................................................................................................................... ....17
9 SPECIAL FUNCTION REGISTERS .........................................................................................18
9.1 SFR Detail Bit Descriptions ..........................................................................................20
10 INSTRUCTION......................................................................................................................... 35
10.1 Instruction Timing..........................................................................................................43
11 POWER MANAGEMENT..........................................................................................................44
11.1 Idle Mode ......................................................................................................................44
11.2 Power Down Mode .......................................................................................................44
12 RESET CONDITIONS...............................................................................................................45
12.1 Sources of reset............................................................................................................45
12.1.1 External Reset .............................................................................................................. 45
12.1.2 Software Reset ............................................................................................................. 45
12.1.3 Watchdog Timer Reset................................................................................................. 45
Publication Release Date: Oct 20, 2011
- 1 - Revision A10
http://www.Datasheet4U.com
1 page  
W78E054D/W78E052D/W78E051D Data Sheet
2 FEATURES
• 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 2.4V to 5.5V
• Temperature grade is (-40oC~85oC)
• Pin and Instruction-sets compatible with MCS-51
• 256 bytes of on-chip scratchpad RAM
• 16K/8K/4K bytes electrically erasable/programmable Flash EPROM
• 2K bytes LDROM support ISP function (Reference Application Note)
• 64KB program memory address space
• 64KB data memory address space
• Four 8-bit bi-directional ports
• 8-sources, 4-level interrupt capability
• One extra 4-bit bit-addressable I/O port, additional INT2 / INT3 (available on PQFP, PLCC and
LQFP package)
• Three 16-bit timer/counters
• One full duplex serial port
• Watchdog Timer
• EMI reduction mode
• Software Reset
• Built-in power management with idle mode and power down mode
• Code protection
• Packages: DIP40, PLCC44, PQFP44, LQFP48
Publication Release Date: Oct 20, 2011
- 5 - Revision A10
5 Page 
W78E054D/W78E052D/W78E051D Data Sheet
6 BLOCK DIAGRAM
Figure 6–1 W78E054D/W78E052D/W78E051D Block Diagram
- 11 -
Publication Release Date: Oct 20, 2011
Revision A10
11 Page | ||
| Páginas | Total 70 Páginas | |
| PDF Descargar | [ Datasheet W78E051D.PDF ] | |
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