ATTINY24-20MU Atmel, ATTINY24-20MU Datasheet - Page 41
![IC MCU AVR 2K FLASH 20MHZ 20-QFN](/photos/6/87/68751/313-20-qfn_sml.jpg)
ATTINY24-20MU
Manufacturer Part Number
ATTINY24-20MU
Description
IC MCU AVR 2K FLASH 20MHZ 20-QFN
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY24-20MU
Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Connectivity
USI
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o
12
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
Data Converters
A/D 8x10b
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
USI
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
12
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
On-chip Adc
10 bit
For Use With
ATSTK600-DIP40 - STK600 SOCKET/ADAPTER 40-PDIP770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATAVRISP2 - PROGRAMMER AVR IN SYSTEMATSTK505 - ADAPTER KIT FOR 14PIN AVR MCU
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATTINY24-20MU
Manufacturer:
AVNET
Quantity:
20 000
- Current page: 41 of 238
- Download datasheet (5Mb)
8.2.2
8.2.3
8006K–AVR–10/10
External Reset
Brown-out Detection
An External Reset is generated by a low level on the RESET pin if enabled. Reset pulses longer
than the minimum pulse width (see
ate a reset, even if the clock is not running. Shorter pulses are not guaranteed to generate a
reset. When the applied signal reaches the Reset Threshold Voltage – V
edge, the delay counter starts the MCU after the Time-out period – t
Figure 8-4.
ATtiny24/44/84 has an On-chip Brown-out Detection (BOD) circuit for monitoring the V
during operation by comparing it to a fixed trigger level. The trigger level for the BOD can be
selected by the BODLEVEL Fuses. The trigger level has a hysteresis to ensure spike free
Brown-out Detection. The hysteresis on the detection level should be interpreted as V
V
When the BOD is enabled, and V
8-5 on page
trigger level (V
out period t
The BOD circuit will only detect a drop in V
ger than t
Figure 8-5.
BOT
+ V
INTERNAL
TIME-OUT
HYST
BOD
RESET
RESET
TOUT
CC
V
41), the Brown-out Reset is immediately activated. When V
/2 and V
given in
CC
External Reset During Operation
Brown-out Reset During Operation
BOT+
has expired.
in
BOT-
Figure 8-5 on page
“System and Reset Characteristics” on page
= V
BOT
- V
CC
“System and Reset Characteristics” on page
V
HYST
decreases to a value below the trigger level (V
BOT-
/2.
41), the delay counter starts the MCU after the Time-
CC
if the voltage stays below the trigger level for lon-
V
t
TOUT
BOT+
177.
ATtiny24/44/84
TOUT
CC
– has expired.
RST
increases above the
– on its positive
177) will gener-
BOT-
in
CC
BOT+
Figure
level
41
=
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