R
EM MICROELECTRONIC - MARIN SA
EM6680
Ultra Low Power 8-pin Microcontroller
Features
Figure 1. Architecture
True Low Power:
4.0 µA active mode
3.0 µA standby mode
VDD
VDD
0.65 µA sleep mode
ROM
1536 x 16Bit
RAM
80 x 4Bit
@ 1.5V, 32kHz, 25°C
Low Supply Voltage 1.2 V to 3.6 V
No external component needed
Available in TSSOP-8/14, SO-8/14 packages and die
4-bit ADC or 12 levels Supply Voltage Level
Detector (SVLD)
Power Supply
Stable
RC oscillator
32 - 128kHz
Power on
Reset
Prescaler
Sleep Counter
Reset
Core
EM6600
Max 4 (5*) outputs with 2 high drive outputs of 10mA
Max. 5 (6*) inputs
Sleep Counter Reset (automatic wake-up from sleep
mode (EM patent))
Mask ROM 1536 × 16 bits
RAM 80 × 4 bits
Internal RC oscillator 32 kHz – 800 kHz
2 clocks per instruction cycle
72 basic instructions
External CPU clock source possible
Watchdog timer (2 sec)
Power-On-Reset with Power-Check on Start-Up
3 wire serial port , 8 bit, master and slave mode
Universal 10-bit counter, PWM, event counter
Prescaler down to 1 Hz (freq. = 32 kHz)
Frequency output 1Hz, 2048 Hz, CpuClk, PWM
6 internal interrupt sources ( 2×10-bit counter, 2×
prescaler, SVLD, Serial Interface)
2 external interrupt sources (port A)
10-Bit Univ
Count/Timer
Watchdog
4-bit ADC
SVLD check
Interrupt
Controller
Port A
Serial Interface
Reset
PA4
PA0
PA1
PA2
PA3
*PA5
PA1 & PA2:
high current
drive outputs
* PA5 available only
in 14-pin package
and in die
Figure 2. Pin Configuration
PA0
1
2
3
4
8
7
6
5
VDD
PA1
VREG
TSSOP-8, SO-8
EM6680
EM6680
Description
PA2
PA3
PA4 (Reset,ADC)
VSS
The EM6680 is an ultra-low voltage, low power
microcontroller coming in a package as small as 8-pin
TSSOP and working up to 0.4 MIPS. It comes with an
integrated 4-bit ADC and 2 high current drive outputs of
10mA and it requires no external component. It has a
sleep counter reset allowing automatic wake-up from sleep
mode. It is designed for use in battery-operated and field-
powered applications requiring an extended lifetime. A
high integration level make it an ideal choice for cost
sensitive applications.
NC
1
2
3
14 NC
PA0
PA1
13 VDD
12 VREG
TSSOP-14, SO-14
PA2
4
5
11 PA5
PA3
NC
10 PA4 (Reset,ADC)
9
VSS
NC
6
7
The EM6680 contains the equivalent of 3kB mask ROM
and a RC oscillator with frequencies between 32 and
800kHz selectable by metal option. It also has a power-
on reset, watchdog timer, 10 bit up/down counter, PWM
and several clock functions.
8
NC
Typical Applications
Household appliances
Safety and security devices
Automotive controls
Sensor interfaces
Watchdog
Tools include windows-based simulator and emulator. A
ROMless version is also available for validation in
development stage (EMDK6680A).
Intelligent ADC
Driver (LED, triac)
Copyright © 2005, EM Microelectronic-Marin SA
1
www.emmicroelectronic.com
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