ATTINY2313-20MU Atmel, ATTINY2313-20MU Datasheet - Page 38

• Manufacturer Part Number: ATTINY2313-20MU
• Description: IC MCU AVR 2K FLASH 20MLF
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY2313-20MU

• 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-MLF®, QFN
• Processor Series: ATTINY2x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 128 B
• Interface Type: SPI/UART/USI
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 18
• Number Of Timers: 2
• Operating Supply Voltage: 2.7 V to 5.5 V
• 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: - 40 C
• Package: 20MLF EP
• Device Core: AVR
• Family Name: ATtiny
• Maximum Speed: 20 MHz
• For Use With: ATSTK600-DIP40 - STK600 SOCKET/ADAPTER 40-PDIP770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATAVRDRAGON - KIT DRAGON 32KB FLASH MEM AVRATAVRISP2 - PROGRAMMER AVR IN SYSTEMATJTAGICE2 - AVR ON-CHIP D-BUG SYSTEM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Converters: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: Q2312268A

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