AT90PWM81-16MF Atmel, AT90PWM81-16MF Datasheet - Page 191
AT90PWM81-16MF
Manufacturer Part Number
AT90PWM81-16MF
Description
IC MCU AVR 8K FLASH ISP 32QFN
Manufacturer
Atmel
Series
AVR® 90PWM Lightingr
Datasheet
1.AT90PWM81-16MN.pdf
(325 pages)
Specifications of AT90PWM81-16MF
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
SPI
Peripherals
Brown-out Detect/Reset, PWM, WDT
Number Of I /o
20
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 11x10b; D/A 1x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 105°C
Package / Case
32-MLF®, QFN
For Use With
ATSTK600-SOIC - STK600 SOCKET/ADAPTER FOR SOIC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT90PWM81-16MF
Manufacturer:
Atmel
Quantity:
3 118
- Current page: 191 of 325
- Download datasheet (6Mb)
15.3
15.3.1
15.3.2
7734P–AVR–08/10
Register Description
BGCCR – Bandgap Calibration Current Register
BGCRR – Bandgap Calibration Resistor Register
Bit
Read/Write
Initial Value
• Bit 7:4 – Res: Reserved Bit
This bit is reserved for future use.
• Bit 3:0 – BGCC3:0: BG Calibration of PTAT Current
These bits are used for trimming of the nominal value of the bandgap reference voltage. These bits are
binary coded, so the lowest value for Vbg is reached when BGCC3:0 is 0000 and the maximum value
when BGCC3:0 is 1111. The step size is approximately 5 mV.
Updating the BGCC bits will affect the BOD detection level. The BOD will react quickly to the new
detection level.
Bit
Read/Write
Initial Value
• Bit 7:4 – Res: Reserved Bit
This bit is reserved for future use.
• Bit 3:0 – BGCR3:0: BG Calibration of Resistor ladder
These bits are used for temperature gradient adjustment of the bandgap reference.
Vbg as a function of temperature. Vbg has a positive temperature coefficient at low temperatures and neg-
ative temperature coefficient at high temperatures. Depending on the process variations, the top of the
Vbg curve may be located at higher or lower temperatures.
To minimize the temperature drift in the temperature range of interest, BGCRR is used to adjust the top of
the curve towards the centre of the temperature range of interest. The BGCRR bits are thermometer coded,
resulting in 5 possible settings: 0000, 0001, 0011, 0111, 1111. The value 0000 shifts the top of the Vbg
curve to the highest possible temperature, and the value 1111 shifts the top of the Vbg curve to the lowest
possible temperature.
-
-
7
-
0
7
-
0
6
-
-
0
6
-
-
0
5
-
-
0
5
-
-
0
4
-
-
0
4
-
-
0
3
BGCC3
R/W
1
3
BGCR3
R/W
1
2
BGCC2
R/W
0
2
BGCR2
R/W
0
1
R/W
0
1
R/W
0
BGCC1
BGCR1
AT90PWM81
Figure 15-2
0
BGCC0
R/W
0
0
BGCR0
R/W
0
BGCCR
BGCRR
illustrates
191
Related parts for AT90PWM81-16MF
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Manufacturer:
Atmel Corporation
Datasheet:
Part Number:
Description:
IC MCU AVR 8K FLASH ISP 20SOIC
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC MCU AVR 8K FLASH ISP 32QFN
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC MCU AVR 8K FLASH ISP 20SOIC
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
8-bit Avr Microcontroller With 8k Bytes In- System Programmable Flash
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
DEV KIT FOR AVR/AVR32
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
INTERVAL AND WIPE/WASH WIPER CONTROL IC WITH DELAY
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Low-Voltage Voice-Switched IC for Hands-Free Operation
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
AM-FM Receiver IC U4255BM-M
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Monolithic Integrated Feature Phone Circuit
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Multistandard Video-IF and Quasi Parallel Sound Processing
Manufacturer:
ATMEL Corporation
Datasheet: