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General Description
EM78P341N, EM78P342N and EM78P343N are 8-bit microprocessors designed and developed with low-power and high-speed CMOS technology. It is equipped with a 2K * 13-bit Electrical One Time Programmable Read Only Memory (OTP-ROM). With its OTP-ROM feature, it is able to offer a convenient way of developing and verifying your programs. Moreover, it provides a protect bit to guard against code intrusion, as well as 3 Code Option words to accommodate your requirements. Furthermore you can take advantage of ELAN Writer to easily write your development code into the EM78P341N, EM78P342N and EM78P343N.
Features
CPU configuration
- 2K x 13 bits on chip ROM
- 80 x 8 bits on chip registers (SRAM)
- 8 level stacks for subroutine nesting
- 4 programmable Level Voltage Detector (LVD) :
4.5V, 4.0V,3.3V,2.2V
- 3 programmable Level Voltage Reset (LVR) :
4.0V,3.5V,2.4V(POR)
- Less than 1.5 mA at 5V/4MHz
- Typically 15 uA, at 3V/32KHz
- Typically 2 uA, during sleep mode
I/O port configuration
- 3 bi-directional I/O ports : P5,P6,P7
- 16 I/O pins
- Wake-up port : P5
- 8 Programmable pull-down I/O pins
- 16 programmable pull-high I/O pins
- 8 programmable open-drain I/O pins
- External interrupt : P60
Operating voltage range:
- commercial version:
Operating voltage range:2.1V~5.5V
- industrial version:
Operating voltage range:2.3V~5.5V
Operating temperature range:
- 0~70℃(commercial)
- -40~85℃(industrial)
Operating frequency range:
- Crystal mode:
DC ~ 16MHz/2clks @ 4.5V; DC ~ 8MHz/2clks @ 3V
DC ~ 4MHz/2clks @ 2.1V
- ERC mode:
DC ~ 16MHz/2clks @ 4.5; DC ~8MHz/2clks @ 3V
- IRC mode:
Oscillation mode : 4MHz,16MHz,1MHz,455KHz
Process deviation : TYP±4%
Temperature deviation : ±5%(-40℃~85℃)
Peripheral configuration
- 8-bit real time clock/counter (TCC) with selective signal sources, trigger edges, and overflow interrupt
- 8-bit real time clock/counter (TCCA, TCCC) and 16-bit real time clock/counter (TCCB) with selective signal sources, trigger edges,
and overflow interrupt
- 8-bit channels Analog-to-Digital Converter with 12-bit resolution
- Easily-implemented IR (Infrared remote control) application circuit
- one pair of comparators or OP
Seven available interruptions:
- TCC, TCCA, TCCB, and TCCC overflow interrupt
- Input-port status changed interrupt (wake-up from sleep mode)
- External interrupt
- ADC completion interrupt
- Comparators status change interrupt
- IR/PWM interrupt
- Low Voltage Detect interrupt
Special features
- Programmable free running watchdog timer (4.5ms:18ms)
- Power saving Sleep mode
- Selectable Oscillation mode
- Power-on voltage detector available(1.7V±0.1V)
Package types:
- 14-pin DIP 300mil : EM78P341NP
- 14-pin SOP 150mil : EM78P341NM
- 18-pin DIP 300mil : EM78P342NP
- 18-pin SOP 300mil : EM78P342NM
- 20-pin DIP 300mil : EM78P343NP
- 20-pin SOP 300mil : EM78P343NM
- 20-pin SSOP 209mil : EM78P343NKM
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