PL8331 PROLIFIC | Alldatasheet
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Power Meter Solutions – Product series PL8331 Please visit our website www.prolific.com.tw for our comprehensive product line. PROLIFIC TECHNOLOGIES INC. Technologies for Tomorrow Tel: 886-3-578-2011. Ext- 3637 Fax: 886-3-578-2022 E-mail: ranjit-dash@prolific.com.tw Prolific Technologies Inc. No.10-2, Li Hsing First Road, Science-Based Park, PROLIFIC TECHNOLOGIES INC. The PL8331 series of ultralow power mixed-signal processors consist of several devices featuring different sets of peripherals targeted for energy meter applications. They integrate analog front end and fixed function DSP solution with an en- hanced 8052 MCU core, RTC and LCD driver in a single part. The measurement core includes ac- tive, reactive, apparent energy calculations, volt- age, current RMS, and frequency measurements. This information can be used as energy billing and any necessary application. Also included is a built- in 16-bit timer, LCD segment drive capability and hardware multiplier. The PL8331 integrates three PGAs with gain set- tings from 1x to 32x. Three 24-bit sigma-deltas A/ D converters guarantee precision in captured data and enough needed resolution. The microprocessor functionality includes a single -cycle 8052 core, a real-time clock, 2UARTs, and an SPI, I 2C and JTAG interface. It reduces the program memory size requirement and makes it easy to integrate complicated designs. The programming is very easy and supports differ- ent (= multiple) ways. (SPI or JTAG) No external voltage is needed for programming. Prolific PL8331
Prolific Technologies Inc. No.10-2, Li Hsing First Road, Science-Based Park, Hsin-Chu City, 300 Tel: 886-3-578-2011. Ext- 3637 Fax: 886-3-578-2022 E-mail: ranjit-dash@prolific.com.tw PROLIFIC TECHNOLOGIES INC. PL8331 MICROPROCESSOR FEATURES
- 8052-based core
- Single-cycle 8MIPS (Peak)
- 32.768 kHz external crystal with built in PLL
- Accurate RTC for time-of-use functions
- H/W watchdog timer (WDT)
- External interrupt sources
- SPI / I 2C interface for EEPROM
- IrDa/UART/IR I/F for AMR
- Flash security
- 16-Bit timer
- Wake-up from I/O, temperature change, or UART
- 64kB flash memory, 2k bytes RAM
- Supply voltage supervisor/monitor with built in SAR ADC
- Serial on board programming/debugging ENERGY MEASUREMENT FEATURES
- Exceeds IEC62053 / ANSI C12.20 standards
- Digital signal processing (DSP) provide high accuracy active (Watt), reactive (VAR), and apparent energy (VA) measurement
- < 0.1% Error on active energy over a Dynamic Range of 2000 to 1 @25 ℃
- Line voltage and frequency measurements
- Phase compensation GENERAL FEATURES
- Wide supply voltage range: 2.4V to 5V
- Ultralow power consumption
- Normal mode:
- Total: 2.2mA @ 3V
- Sleep Mode: 3uA
- RTC only: 1.1uA
- Multi mode power saving function
- Internal switch between regulated and battery inputs
- Compatible with CTs, resistive shunts and Rogowski Coil sensors
- Digital temperature compensation
- Wake-up from standby mode in less than 5us
- Reference: 1.2V (20ppm/ ℃)
- Operation temperature range: -40 ℃ to +85 ℃
- 64-LQFP(7x7) package ADC FEATURES
- Three second-order, 24-bit, delta-sigma Analog-to- Digital Converters
- Three differential input PGA front ADC
- 10 bit SAR ADC with temperature sensor LCD FEATURES
- Up to 4x25 segment Technologies for Tomorrow Technologies for Tomorrow