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Description
EM78P257AKM is an 8-bit microprocessor with low-power and high-speed CMOS technology. It features a 1Kx13-bit Electrical One Time Programmable Read Only Memory (OTP-ROM), which allows users to conveniently develop and verify their programs. The OTP-ROM also includes a PROTECTION bit to prevent unauthorized access to the user's code and 7 OPTION bits to match the user's requirements. Programming the user's code onto the EM78P257AKM can be easily done with an EMC writer.
Specifications and features
- Operating voltage range: 2.2V~5.5V
- Temperature range: 0°C~70°C
- Operating frequency range: DC ~ 36MHz
- Low power consumption:
- Less than 1.6 mA at 5V/4MHz
- Typical of 15 µA at 3V/32KHz
- Typical of 1 µA during the sleep mode - 1Kx13 bits on chip ROM
- One security register to prevent unauthorized access to the OTP memory
- One configuration register to match the user's requirements
- 48x8 bits on chip registers (SRAM)
- 2 bi-directional I/O ports
- 5 level stacks for subroutine nesting
- 8-bit real time clock/counter (TCC) with selective signal sources, trigger edges, and overflow interrupt
- Two clocks per instruction cycle
- Power-down mode (SLEEP mode)
- Three available interruptions:
- TCC overflow interrupt
- Input-port status changed interrupt (wake up from the sleep mode)
- External interrupt - Programmable free running watchdog timer
- 8 pull-high pins
- 7 pull-down pins
- 8 open-drain pins
- Two R-option pins
- Package type: SOP, SOIC and DIP
- 99.9% single instruction cycle commands
Application Scenarios
The EM78P257AKM is suitable for a wide range of applications including but not limited to:
- Consumer electronics
- Smart home devices
- Industrial automation
- Security systems
Comparison
Advantages- Low power consumption
- High-speed performance
- Convenient development and verification of programs
- Easy programming with an EMC writer
- Wide operating voltage and temperature range
- Multiple available interruptions
- Flexible I/O options
Disadvantages:- Package options limited to SOP, SOIC, and DIP
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Datasheet
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Shopping guide
Delivery period:
- - Will ship out in 2-3 days
- - DHL Express: 3-7 business days
- - DHL eCommerce: 12-22 business days
- - FedEx International Priority: 3-7 business days
- - EMS: 10-15 business days
Shipping fee:
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Additional Information
- Datasheet: Download EM78P257AKM
- Chipdatas Part: CD90-EM78P257AKM
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/09/20 00:38 +0800
Refund
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- Full Refund if you don't receive your order
- Full or Partial Refund , If the item is not as described
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