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CSU8RP1001
Solar electronic scales and portable instruments

In a traditional scale system, the sensor and chip measurement module consumes more than 90% of the power. Therefore, using high-speed pulse power supply and reducing measurement time are key to reducing the power consumption of the scale system. CHIPSEA’s CSU8RP1001 SOC has achieved a breakthrough in high-speed and high-precision measurement—the ENOB can continue to reach 16 bits when the ADC output rate is 1.9 kHz, PGA = 136, and Vref = 2.6 V. The high speed and high precision of this core ADC unit ensure it is possible to use high-speed pulse measurement, thereby greatly reducing the system’s average power consumption.

The MCU core and LCD driver module in a conventional scale consume a small amount of current. However, the current consumption is quite large for the microamp-level power supply in a solar scale. The CSU8RP1001 chip in the LCD driver module uses an innovative approach to obtain LCD bias voltage, enabling the module to consume less than 1 uA of current while powering a large LCD.



High-performance RISC CPU
8-bit single-chip MCU
Built-in 4K x 16-bit one-time programmable memory (OTP ROM)
256-byte data memory (SRAM)
Only 39 single-word instructions
8-level memory stack
Analog features
24-bit resolution, 15-bit ENOB (7.8 kHz output rate at 68 PGA)
Internally integrated programmable gain amplifier
ADC output rate: 30.5 Hz–62.5 kHz
Internal charge pump
Internal voltage regulator for sensors and modulators
Features of the dedicated microcontroller
Power-on reset (POR)
Power-on reset delay timer (39 ms)
Internal low voltage reset (LVR)
Timer
8-bit programmable pre-scaled 8-bit timer
Extended watchdog timer (WDT)
Programmable time range
Peripheral features
14-bit bi-directional I/O port and 1 input port
1 buzzer output
4 × 14 LCD drivers
Either the internal crystal or the WDT crystal can be used as the clock source
Two different LCD drive waveforms can be selected
Different bias voltage generation methods can be selected
2 external interrupts
Low voltage detection (LVD) pin (internal voltage comparison of 2.4 V, 2.5 V, 2.6 V, 2.7 V, 2.8 V, 3.2 V, and 3.6 V)
Technical Documentation
Design and development
Tools/Software
CSWrite V3.2.4
CSWriterUx V3.2.4 is the latest burning tool software of Core Sea Technology. Support core sea 8bit MCU, 32bit MCU.
CSU-IDE
Core sea 8-bit MCU/SOC integrated development environment 1. Integrated C compiler, assembler, linker, window 2. Support standard C language and assembly language development 3 Example code of integrated chips
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