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PDF EM78F651N Data sheet ( Hoja de datos )
| Número de pieza | EM78F651N | |
| Descripción | 8-Bit Microcontroller | |
| Fabricantes | ELAN Microelectronics | |
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EM78F651N
8-Bit
Microcontroller
Product
Specification
DOC. VERSION 1.1
ELAN MICROELECTRONICS CORP.
October 2006
www.DataSheet4U.com
1 page  
EM78F651N
8-Bit Microcontroller
1 General Description
The EM78F651N is an 8-bit microprocessor designed and developed with low-power, high-speed CMOS technology
and high noise immunity. It has an on-chip 1K×13-bit Electrical Flash Memory and 128×8-bit in system programmable
EEPROM. It provides three protection bits to prevent intrusion of user’s Flash memory code. Twelve Code option bits
are also available to meet user’s requirements.
With its enhanced Flash-ROM feature, the EM78F651N provides a convenient way of developing and verifying user’s
programs. Moreover, this Flash-ROM device offers the advantages of easy and effective program updates, using
development and programming tools. User can avail of the ELAN Writer to easily program his development code.
2 Features
CPU configuration
• 1K×13 bits on chip ROM
• 80×8 bits on chip registers (SRAM)
• 128 bytes in-system programmable EEPROM
*Endurance: 100,000 write/erase cycles
• More than 10 years data retention
• 5-level stacks for subroutine nesting
• Less than 2 mA at 5V/4MHz
• Typically 20 µA, at 3V/32kHz
• Typically 2 µA, during sleep mode
I/O port configuration
• 2 bidirectional I/O ports
• Wake-up port : P6
• 8 Programmable pull-down I/O pins
• 8 programmable pull-high I/O pins
• 8 programmable open-drain I/O pins
• External interrupt : P60
Operating voltage range:
• Operating voltage: 2.2V~5.5V at -40°C ~85°C
(Industrial)
Operating frequency range (base on two clocks):
• Crystal mode:
DC ~ 20MHz @ 5V
DC ~ 8MHz @ 3V
DC ~ 4MHz @ 2.2V
• ERC mode:
DC ~ 16MHz @ 5V
DC ~ 8MHz @ 3V
DC ~ 4MHz @ 2.2V
• IRC mode:
DC ~ 16MHz @ 4.5V~5.5V
DC ~ 4MHz @ 2.2V~5.5V
Three available interrupts:
• TCC overflow interrupt
www.DataS•hesIenletp4euUpt-.pmcooormtdset)atus changed interrupt (wake-up from
• External interrupt
Peripheral configuration
• 8-bit real time clock/counter (TCC) with selective signal
sources, trigger edges, and overflow interrupt
• Power down (Sleep) mode
*Vdd power monitor and supports low voltage detector
interrupt flag
• 4 programmable Level Voltage Detector (LVD)
• Three security registers to prevent intrusion of Flash
memory codes
• One configuration register to accommodate user’s
requirements
• 2/4/8/16 clocks per instruction cycle selected by code
option
Single instruction cycle commands
Four Crystal range in Oscillator Mode
Crystal Range
20MHz ~ 6MHz
6MHz ~ 1MHz
1MHz ~ 100kHz
32.768kHz
Oscillator Mode
HXT
XT
LXT1
LXT2
Programmable free running watchdog timer
Package type:
• 14-pin DIP 300mil
: EM78F651NAPxS/xJ
• 14-pin SOP 150mil
• 16-pin DIP 300mil
: EM78F651NAMxS/xJ
: EM78F651NABPxS/xJ
• 16-pin SOP 300mil
• 18-pin DIP 300 mil
: EM78F651NABMxS/xJ
: EM78F651NCPxS/xJ
• 18-pin SOP 300mil
• 20-pin DIP 300mil
: EM78F651NCMxS/xJ
: EM78F651NDPxS/xJ
• 20-pin SSOP 209mil : EM78F651NDKMxS/XJ
Green products do not contain hazardous substances.
Product Specification (V1.1) 10.20.2006
(This specification is subject to change without further notice)
•1
5 Page 
EM78F651N
8-Bit Microcontroller
All instructions are single instruction cycle (fclk/2 or fclk/4) except for the instruction
that would change the contents of R2. Such instruction will need one more
instruction cycle.
PC (A9 ~ A0)
Stack Level 1
Stack Level 2
Stack Level 3
Stack Level 5
Reset Vector
External INT pin interrupt vector
Port 6 pin status change interrupt vector
TCC overflow
LVD interrupt vector
000H
008H
On-chip Program
Memory
3FFH
Fig. 6-1 Program Counter Organization
www.DataSheet4U.com
Product Specification (V1.1) 10.20.2006
(This specification is subject to change without further notice)
•7
11 Page | ||
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