ATTINY2313-20MU Atmel, ATTINY2313-20MU Datasheet - Page 34

• 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

Power-on Reset
34
ATtiny2313
Table 15. Reset Characteristics
Notes:
A Power-on Reset (POR) pulse is generated by an On-chip detection circuit. The detection level
is defined in
POR circuit can be used to trigger the start-up Reset, as well as to detect a failure in supply
voltage.
A Power-on Reset (POR) circuit ensures that the device is reset from Power-on. Reaching the
Power-on Reset threshold voltage invokes the delay counter, which determines how long the
device is kept in RESET after V
when V
Figure 15. MCU Start-up, RESET Tied to V
Symbol
V
V
t
RST
POT
RST
INTERNAL
TIME-OUT
CC
RESET
1. Values are guidelines only. Actual values are TBD.
2. The Power-on Reset will not work unless the supply voltage has been below V
RESET
V
decreases below the detection level.
CC
Power-on Reset
Threshold Voltage
(rising)
Power-on Reset
Threshold Voltage
(falling)
Voltage
Minimum pulse width
on RESET Pin
RESET Pin Threshold
Table
Parameter
(2)
15. The POR is activated whenever V
V
V
POT
RST
CC
t
TOUT
rise. The RESET signal is activated again, without any delay,
T
T
A
V
V
A
= -40 - to +85°C
CC
CC
= -40 to +85°C
Condition
= 1.8 - 5.5V
= 1.8 - 5.5V
CC
0.2 V
Min
CC
is below the detection level. The
(1)
CC
Typ
1.2
1.1
(1)
0.9 V
Max
2.5
POT
(1)
CC
2543L–AVR–08/10
(falling)
Units
µs
V
V
V