Specification
Overview
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General Description
The EM78P259N is an 8-bit microprocessor designed and developed with low-power and high-speed CMOS technology. The device has an on-chip 2k x 13-bit Electrical One Time Programmable Read Only Memory (OTP-ROM). It provides a protection bit to prevent intrusion of user's code. Three Code Option words are also available to meet user's requirements. With its enhanced OTP-ROM feature, the EM78P259N provides a convenient way of developing and verifying user's programs. Moreover, this OTP 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.
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Features & Benefits
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CPU Configuration
- 2K x 13 bits on-chip OTP ROM
- 80 bytes on-chip registers (SRAM, general purpose)
- 8-level stacks for subroutine nesting
- Less than 1.9 mA at 5V/4MHz
- Typically 15 μA at 3V/32kHz
- Typically 1 μA during Sleep mode
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I/O Port Configuration
- 3 bidirectional I/O ports: P5, P6, P7
- 17 I/O pins
- Wake-up port: P5
- 8 programmable pull-down I/O pins
- 8 programmable pull-high I/O pins
- 8 programmable open-drain I/O pins
- External interrupt: P60
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Operating Voltage Range
- 2.1V~5.5V at 0°C~70°C (Commercial Grade)
- 2.3V~5.5V at -40°C~85°C (Industrial Grade)
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Operating Frequency Range
- Crystal Mode: DC~20MHz/2clks@5V; DC~8MHz/2clks@3V
- ERC Mode: DC~16MHz/2clks@5V; DC~8MHz/2clks@3V
- IRC Mode: 455kHz, 1MHz, 4MHz, 8MHz ±4%@25°C, 5V
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All the four main frequencies can be trimmed by programming with four calibrated bits in the ICE259N Simulator. OTP is auto trimmed by ELAN Writer.
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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
- 4-bit channel Analog-to-Digital Converter with 12-bit resolution in Vref mode
- Easily implemented IR (Infrared remote control) application circuit
- One pair of comparators or OP
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Six Available Interrupts
- TCC, TCCA, TCCB, TCCC overflow interrupt
- Input-port status changed interrupt (wake-up from sleep mode)
- External interrupts
- ADC completion interrupt
- Comparator status change interrupt
- IR/PWM interruptn
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Special Features
- Programmable free running watchdog timer (4.5ms:18ms)
- Power down mode (Sleep mode)
- Selectable oscillation mode
- Power-on voltage detector available: (2.0V±0.1V)
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Data Sheet
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Download File
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Package
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Download File
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Technical Information
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Website Link
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