ATTINY48-AUR Atmel, ATTINY48-AUR Datasheet - Page 33
ATTINY48-AUR
Manufacturer Part Number
ATTINY48-AUR
Description
MCU AVR 4KB FLASH 12MHZ 32TQFP
Manufacturer
Atmel
Series
AVR® ATtinyr
Datasheet
1.ATTINY48-MU.pdf
(302 pages)
Specifications of ATTINY48-AUR
Core Processor
AVR
Core Size
8-Bit
Speed
12MHz
Connectivity
I²C, SPI
Peripherals
Brown-out Detect/Reset, POR, WDT
Number Of I /o
28
Program Memory Size
4KB (2K x 16)
Program Memory Type
FLASH
Eeprom Size
64 x 8
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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8008G–AVR–04/11
and temperature dependent, as shown in
245
Table 6-5.
The main purpose of the delay is to keep the AVR in reset until it is supplied with minimum V
The delay will not monitor the actual voltage and it will be required to select a delay longer than
the V
be used. A BOD circuit will ensure sufficient V
delay can be disabled. Disabling the time-out delay without utilizing a Brown-out Detection circuit
is not recommended.
The oscillator is required to oscillate for a minimum number of cycles before the clock is consid-
ered stable. An internal ripple counter monitors the oscillator output clock, and keeps the internal
reset active for a given number of clock cycles. The reset is then released and the device will
start to execute.
The start-up sequence for the clock includes both the time-out delay and the start-up time when
the device starts up from reset. When starting up from Power-down mode, V
at a sufficient level and only the start-up time is included.
CKSEL[1:0]
and
CC
rise time. If this is not possible, an internal or external Brown-out Detection circuit should
00
10
11
01
“Watchdog Oscillator Frequency vs. Temperature” on page
Length of Startup Sequence.
SUT[1:0]
XX
00
01
10
11
Number of WDT Cycles
“Watchdog Oscillator Frequency vs. VCC” on page
CC
4K (4,096)
8K (8,192)
Reserved
Reserved
before it releases the reset, and the time-out
0
246.
ATtiny48/88
Typical Time-out
CC
Reserved
Reserved
is assumed to be
64 ms
0 ms
4 ms
CC
33
.
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