em6521 EM Microelectronic, em6521 Datasheet
em6521
Manufacturer Part Number
em6521
Description
Mfp Version Of Em6621 Ultra Low Power Microcontroller With 4x20 Lcd Driver
Manufacturer
EM Microelectronic
Datasheet
1.EM6521.pdf
(68 pages)
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Features
• Low Power
• 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
• 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
• 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
• timer watchdog and oscillation supervisor
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
Copyright © 2005, EM Microelectronic-Marin SA
• Timing device
• Automotive controls with display
• Intelligent display driver
• Measurement equipment
• Domestic appliance
• Interactive system with display
• Timer / sports timing devices
• Bicycle computers
• Safety and security devices
selectable from 1.2 V up to 4.0 V
2x10-bit counter, melody timer, serial interface)
with hard or software start/stop function
Ultra Low Power Microcontroller with 4x20 LCD Driver
Applications
R
EM MICROELECTRONIC -
- 0.1 µA sleep mode
- 11 µA
- 1.8 µA standby mode, LCD Off
@ 3 V, 32 KHz, 25 ºC
active mode, LCD On
MFP version of EM6621
Figure 1. Architecture
Figure 2. Pin Configuration, TQFP52 10 * 10 * 1 mm
1
MARIN SA
www.emmicroelectronic.com
EM6521
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