• cpu configuration

• 1kx13 bits on-chip rom
• 32x8 bits on-chip registers (sram, general purpose)
• 5 level stacks for subroutine nesting
• less than 1.5 ma at 5v/4mhz
• typically 15 ua, at 3v/32khz
• typically 1 ua, during sleep mode

• i/o port configuration

• 2 bidirectional i/o ports : p5, p6
• 1 input and 11 i/o pins
• wake-up port : p6
• 6 programmable pull-down i/o pins
• 7 programmable pull-high i/o pins
• 7 programmable open-drain i/o pins
• external interrupt : p60

• operating voltage range:

• otp version:

operating voltage range: 2.3v~5.5v

• operating temperature range: 0~70°c
• operating frequency range (base on 2 clocks):

• crystal mode:

dc~20mhz/2clks @ 5v; dc~100ns inst. cycle @ 5v

dc~8mhz/2clks @ 3v; dc~250ns inst. cycle @ 3v

dc~4mhz/2clks @ 2.3v; dc~500ns inst. cycle @ 2.3v

• erc mode:

dc~4mhz/2clks @ 5v; dc~500ns inst. cycle @ 5v

dc~4mhz/2clks @ 3v; dc~500ns inst. cycle @ 3v

dc~4mhz/2clks @ 2.3v; dc~500ns inst. cycle @ 2.3v

• irc mode: 

oscillation mode : 4mhz, 8mhz, 1mhz, 455khz

process deviation : typ ± 5.5%, max ± 6%

temperature deviation : ±10% (0°c~70°c )

• peripheral configuration

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

• three available interrupts:

• tcc overflow interrupt
• input-port status changed interrupt (wake-up from sleep mode)
• external interrupt

• special features

• programmable free running watchdog timer
• power saving sleep mode
• selectable oscillation mode

• other features

• programmable prescaler of oscillator set-up time
• one security register to prevent intrusion of user””s otp memory code·
• one configuration register to match user””s requirement
• two clocks per instruction cycle
• package type:
• 14-pin dip 300mil : em78p153ad14j
• 14-pin sop 150mil : em78p153aso14j