PL8331 datasheet(2/2 Pages) PROLIFIC

2 / 2 page

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 / I2C 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

(Gain=1,2,4,8,16,24,32)

• 10 bit SAR ADC with temperature sensor

LCD FEATURES

•

Up to 4x25 segment

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