ATMEGA406-1AAU Atmel, ATMEGA406-1AAU Datasheet - Page 106

IC AVR MCU 40K 1MHZ 48LQFP

ATMEGA406-1AAU

Manufacturer Part Number
ATMEGA406-1AAU
Description
IC AVR MCU 40K 1MHZ 48LQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheets

Specifications of ATMEGA406-1AAU

Core Processor
AVR
Core Size
8-Bit
Speed
1MHz
Connectivity
I²C
Peripherals
POR, WDT
Number Of I /o
18
Program Memory Size
40KB (20K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
4 V ~ 25 V
Data Converters
A/D 10x12b
Oscillator Type
Internal
Operating Temperature
-30°C ~ 85°C
Package / Case
48-LQFP
Processor Series
ATMEGA48x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
2 KB
Interface Type
2-Wire
Maximum Clock Frequency
1 MHz
Number Of Programmable I/os
18
Number Of Timers
2
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
Minimum Operating Temperature
- 30 C
Cpu Family
ATmega
Device Core
AVR
Device Core Size
8b
Frequency (max)
1MHz
Total Internal Ram Size
2KB
# I/os (max)
18
Number Of Timers - General Purpose
2
Operating Supply Voltage (typ)
5/9/12/15/18/24V
Operating Supply Voltage (max)
25V
Operating Supply Voltage (min)
4V
On-chip Adc
10-chx12-bit
Instruction Set Architecture
RISC
Operating Temp Range
-30C to 85C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
48
Package Type
LQFP
Controller Family/series
AVR MEGA
No. Of I/o's
18
Eeprom Memory Size
512Byte
Ram Memory Size
2KB
Cpu Speed
1MHz
Rohs Compliant
Yes
For Use With
770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAG770-1005 - ISP 4PORT FOR ATMEL AVR MCU JTAG770-1004 - ISP 4PORT FOR ATMEL AVR MCU SPI
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATMEGA406-1AAU
Manufacturer:
Atmel
Quantity:
10 000
Part Number:
ATMEGA406-1AAU
Manufacturer:
AT
Quantity:
20 000
18. Coulomb Counter - Dedicated Fuel Gauging Sigma-delta ADC
18.1
106
Features
ATmega406
ATmega406 features a dedicated Sigma-Delta ADC (CC-ADC) optimized for Coulomb Counting
to sample the charge or discharge current flowing through the external sense resistor R
Two different output values are provided, Instantaneous Current and Accumulate Current. The
Instantaneous Current Output has a short conversion time at the cost of lower resolution. The
Accumulate Current Output provides a highly accurate current measurement for Coulomb
Counting.
The sampling Coulomb Counter provides a highly accurate and flexible solution. Accuracy can
easily be traded against conversion time. It also provides Regular Current detection. This allows
ultra-low power operation in Power-save mode when small charge or discharge currents are
flowing.
Figure 18-1. Coulomb Counter Block Diagram
Sampled System Coulomb Counter
Low Power Sigma-Delta ADC Optimized for Coulomb Counting
Instantaneous Current Output with 3.9 ms Conversion Time
Accumulate Current Output with Programmable Conversion Time: 125/250/500/1000 ms
Input voltage Range Larger than ± 0.15V, Allowing Measurement of more than ± 30A @ 5 mΩ
13-bit Resolution (including sign) corresponding to 53.7 µV (10.7 mA @ 5 mΩ) for Instantaneous
Current Output
18-bit Resolution (including sign) corresponding to 1.68 µV (0.335 µA @ 5 mΩ) for Accumulate
Current Output
Input Offset Less than 10 µV for the ADC
Interrupt on Instantaneous Current Conversion Complete
Interrupt on Accumulate Current Conversion Complete
Interrupt on Regular Current with Programmable Compare Level and Programmable Sampling
Interval: 250/500/1000/2000 ms
R
SENSE
PI
NI
Sigma Delta
Comparator
Current IRQ
modulator
Current
Regular
Level
IRQ
Decimation
8-BIT DATABUS
IRQ
Control &
Register
Status
Decimation
2548E–AVR–07/06
IRQ
SENSE
.

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