ATTINY2313-20MUR Atmel, ATTINY2313-20MUR Datasheet - Page 38
ATTINY2313-20MUR
Manufacturer Part Number
ATTINY2313-20MUR
Description
IC MCU AVR 2K FLASH 20WQFN
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY2313-20MUR
Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Connectivity
SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
18
Program Memory Size
2KB (1K x 16)
Program Memory Type
FLASH
Eeprom Size
128 x 8
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
20-WFQFN, Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Converters
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Internal Voltage
Reference
Voltage Reference
Enable Signals and
Start-up Time
38
ATtiny2313
ATtiny2313 features an internal bandgap reference. This reference is used for Brown-out Detec-
tion, and it can be used as an input to the Analog Comparator.
The voltage reference has a start-up time that may influence the way it should be used. The
start-up time is given in
erence is on during the following situations:
1. When the BOD is enabled (by programming the BODLEVEL [2..0] Fuse).
2. When the bandgap reference is connected to the Analog Comparator (by setting the
Thus, when the BOD is not enabled, after setting the ACBG bit, the user must always allow the
reference to start up before the output from the Analog Comparator is used. To reduce power
consumption in Power-down mode, the user can avoid the three conditions above to ensure that
the reference is turned off before entering Power-down mode.
Table 18. Internal Voltage Reference Characteristics
Note:
Symbol
V
t
I
ACBG bit in ACSR).
BG
BG
BG
1. Values are guidelines only. Actual values are TBD.
Parameter
Bandgap reference voltage
Bandgap reference start-up time
Bandgap reference current
consumption
Table
18. To save power, the reference is not always turned on. The ref-
V
V
V
Condition
T
T
T
CC
CC
CC
A
A
A
= 25°C
= 25°C
= 25°C
= 2.7V,
= 2.7V,
= 2.7V,
(1)
Min
1.0
Typ
1.1
40
15
Max
1.2
70
Units
µA
2543L–AVR–08/10
µs
V
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