代理原装义隆EM78P259N集成电路 可解密
概述:
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 2Kx1
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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 2Kx13-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.
Features
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CPU configuration
2Kx13 bits on-chip ROM
80x8 bits on-chip registers (SRAM)
8-level stacks for subroutine nesting
Less than 1.9 mA at 5V/4MHz
Typically 15 uA, at 3V/32kHz
Typically 1 uA, 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
Operating voltage: 2.3V~5.5V (Commercial)
Operating voltage: 2.5V~5.5V (Industrial)
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Operating temperature range
Operating temperature: 0°C ~70°C (Commercial)
Operating temperature: -40°C ~85°C (Industrial)
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Operating frequency range
Crystal mode:
DC~20MHz/2clks @ 5V, DC~100ns inst. Cycle @ 5V
DC~8MHz/2clks @ 3V, DC~250ns inst. Cycle @ 3V
ERC mode:
DC~16MHz/2clks @ 5V, DC~125ns inst. Cycle @ 5V
DC~8MHz/2clks @ 3V, DC~250ns inst. Cycle @ 3V
IRC mode:
Oscillation mode : 4MHz, 8MHz, 1MHz, 455kHz
Internal RC Frequency | Drift Rate | |||
Temperature(-40°C ~80°C ) | Voltage(2.3V~5.5V) | Process | Total | |
4MHz | ±10% | ±5% | ±4% | ±19% |
8MHz | ±10% | ±6% | ±4% | ±20% |
1MHz | ±10% | ±5% | ±4% | ±19% |
455kHz | ±10% | ±5% | ±4% | ±19% |
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 interrupt
ADC completion interrupt
Comparators status change interrupt
IR/PWM interruptn
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Special features
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Programmable free running watchdog timer (4.5ms : 18ms)
Power saving Sleep mode
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