• CPU Configuration

• Support 8K15 bits program ROM
• (48+512) bytes general purpose register
• 32 bytes LCD RAM
• 8-level stacks for subroutine nesting
• Less than 1mA at 5V/4MHz
• Typically 15 uA at 3V/16kHz
• Typically 22 uA, at 3V/32kHz

• Typically 2 uA during sleep mode
• 4 programmable Level Voltage Reset LVR: 4.0V, 3.5V, 2.7V, 1.8V (POR)
• 4 programmable Level Voltage Detector LVD: 4.5V, 4.0V, 3.3V, 2.2V
• Four CPU operation modes: Normal, Sleep, Green, Idle

• I/O Port Configuration

• 6 bidirectional I/O ports: P5~P9, PA
• 4 programmable pin change wake-up ports : P5~P8
• 6 programmable pull-down I/O ports: P5~P9, PA
• 6 programmable pull-high I/O ports: P5~P9, PA
• 6 programmable open-drain I/O ports: P5~P9, PA
• 6 programmable high-sink/drive I/O ports: P5~P9, PA
• 10 external interrupt pins

• Operating Voltage and Temperature Range: 

• Commercial: 2.1V ~ 5.5 V (at 0℃ ~ 70℃)
• Industrial: 2.3V ~ 5.5 V (at -40℃ ~ 85℃)

• Operating Mode:

• Main oscillator: 

• Crystal mode: DC~16 MHz at 5V; DC~8 MHz at 3V; DC~4 MHz at 2.1V
• IRC mode: DC~16 MHz at 5V; DC~8 MHz at 3V; DC~4 MHz at 2.1V

Internal RC Frequency	Drift Rate
	Temperature (-40°C~85°C)	Voltage (2.1V~5.5V)	Process	Total
1 MHz	±2%	±1%	±1%	±4%
4 MHz	±2%	±1%	±1%	±4%
8 MHz	±2%	±1%	±1%	±4%
16 MHz	±2%	±1%	±1%	±4%

• Sub oscillator: 

• Crystal mode: 32.768kHz
• IRC mode: 16k/32kHz

• Peripheral Configuration: 

• 8-bit real time clock/counter (TCC) with selective signal sources and trigger edges
• 15+1 channels Analog-to-Digital Converter with 12-bit resolution + 1 internal reference for Vref
• LCD: 823 dots, bias (1/2, 1/3), duty (static, 1/3, 1/4, 1/8)
• Three 8-bit timers (TC1/TC2/TC3) with six modes:
• Timer/Counter/Capture/Window/Buzzer/PWM/PDO(programmable divider output) modes.
  Timer 1 and Timer 2 can be cascaded to one 16-bit counter/timer
• Universal asynchronous receiver/transmitter (UART)
• Serial transmitter/receiver interface (SPI): 3-wire synchronous communication
• I2C function with 7/10-bit address and 8-bit data transmit/receive mode
• Four programmable watch timer: 1.0 sec, 0.5 sec, 0.25 sec, 3.91 ms
• Power-down (Sleep) mode
• High EFT immunity

• 25 Interrupt Sources: 12 External and 13 Internal: 

• 10 external interrupts
• Input-port status changed interrupt (wake up from sleep mode)
• LVD interrupt
• TCC overflow interrupt
• Three timer interrupt
• ADC completion interrupt
• I2C transfer/receive interrupt
• UART TX, RX , RX error interrupt
• SPI interrupt
• Watch timer interrupt

• Package Type:

• 44 pin QFP 10x10mm: EM78P528NQ44J/S
• 44 pin LQFP 10x10mm: EM78P528NL44J/S)
• 48 pin LQFP 7x7mm: EM78P528NL48J/S

Note: Green product do not contain hazardous substances