EM6521 Datasheet | Unknown Manufacturer

Features - Low Power - 11 µA active mode, LCD On - 1.8 µA standby mode, LCD Off - 0.1 µA sleep mode @ 3 V, 32 KHz, 25 ºC Large Voltage range, 2 to 5.5 V 2 clocks per instruction cycle 72 basic instructions EEPROM 4096 x 16 bits RAM 128 x 4 bits Max. 12 inputs ; port A, port B, port SP Max. 8 outputs ; port B, port SP Voltage Level Detector, 8 levels software selectable from 1.2 V up to 4.0 V Melody, 7 tones + silence inclusive 4-bit timer Universal 10-bit counter, PWM, event counter Prescaler down to 1 second ( crystal = 32 KHz ) 1/1000 sec 12 bit binary coded decimal counter with hard or software start/stop function LCD 20 Segments, 3 or 4 times multiplexed 3 wire serial port , 8 bit, master and slave mode 5 external interrupts (port A, serial interface) 8 internal interrupts (3x prescaler, BCD counter 2x10-bit counter, melody timer, serial interface) timer watchdog and oscillation supervisor Figure 2. Pin Configuration, TQFP52 10 - 10 - 1 mm Figure 1. Architecture - - - - - - - - - - - - - - - - - Description The EM6521 is an advanced single chip CMOS 4-bit microcontroller. It contains EEPROM, RAM, LCD driver, power on reset, watchdog timer, oscillation detection circuit, 10-bit up/down and event counter, 1ms BCD counter, prescaler, voltage level detector (Vld), serial interface and several clock functions. The low voltage feature and low power consumption make it the most suitable controller for battery, stand alone and mobile equipment. The EM6521 is manufactured using EM Marin's Advanced Low Power (ALP) CMOS Process. Typical - - - - - - - - - Applications Timing device Automotive controls with display Intelligent display driver Measurement equipment Domestic appliance Interactive system with display Timer / sports timing devices Bicycle puters Safety and security devices Copyright © 2005, EM Microelectronic-Marin SA .emmicroelectronic. EM6521 at a glance - Power Supply - Low voltage low power architecture including internal voltage...