CMS80F253x Datasheet Enhanced 1T 8051 microcontroller with flash memory
■The CMS80F253x series is an 8051 core, a 1T instruction system compatible with MCS-51, and a general IO type 8-bit chip. The operating frequency can reach up to 48MHz. The MCU has the following characteristics:
▲With a maximum of 32KB program area、256B RAM space、2KB XRAM、1KB non-volatile data area.
▲ There are four oscillation modes, the system clock can be freely switched between the three clock sources (mutual switching between HSE and LSE is prohibited), and the external oscillator stops oscillation detection.
▲ It supports three working modes: normal, idle, and sleep, which can effectively reduce power consumption.
▲ Built-in low-voltage reset LVR, low-voltage monitoring LVD, watchdog overflow reset and other protection settings, can effectively improve the reliability of system operation.
▲ With multiple interrupt sources such as external interrupts, timed interrupts and other peripheral interrupts, it can respond to external events in a timely manner and improve the utilization of the MCU.
▲ Up to 9 timers, which can realize functions such as timing, counting, input capture, output comparison, timing wake-up, and baud rate generator
▲ With cyclic redundancy check unit CRC
▲ 6-channel 16-bit PWM, supports independent, complementary, and synchronous three-mode output, and has dead zone control function.
▲ With 1 I2C, 1 SPI, and 2 UART communication modules, it can realize data transmission between the system and other devices.
▲ It has a high-precision 12-bit ADC and can choose an internal reference voltage.
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Datasheet |
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Please see the document for details |
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SOP28;LQFP32 |
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English Chinese Chinese and English Japanese |
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December 2021 |
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Rev.1.02 |
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2 MB |
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