EM78156E解密——EMC单片机解密

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关于EM78156E单片机：

EM78156E is an 8-bit microprocessor with low-power and high-speed CMOS technology. Integrated into a single chip are on-chip watchdog timer (WDT), RAM,ROM, real time clock/counter, external and interrupt, power down mode, and tri-state I/O.

　　EM78156E  FEATURES

　　Operating voltage range : 2.3V~5.5V

　　Operating temperature range: 0°C~70°C

　　Operating frequency rang (base on 2 clocks ):

　　Crystal mode: DC~20MHz at 5V, DC~8MHz at 3V, DC~4MHz at 2.3V.

　　ERC mode: DC~4MHz at 5V, DC~4MHz at 3V, DC~4MHz at 2.3V.

　　Low power consumption:

　　Less then 2.0 mA at 5V/4MHz

　　Typically 15 μA at 3V/32KHz

　　Typically 1 μA during sleep mode

　　1K × 13 bits on chip ROM

　　One configuration register to accommodate user’s requirements

　　48× 8 bits on chip registers (SRAM, general purpose register)

　　2 bi-directional I/O ports

　　5 level stacks for subroutine nesting

　　8-bit real time clock/counter (TCC) with selective signal sources, trigger edges, and overflow interrupt

　　Two clocks per instruction cycle

　　Power down (SLEEP) mode

　　Three available interruptions

　　TCC overflow interrupt

　　Input-port status changed interrupt (wake up from sleep mode)

　　External interrupt

　　Programmable free running watchdog timer

　　8 programmable pull-high pins

　　7 programmable pull-down pins

　　8 programmable open-drain pins