ATTINY461V-10PU Atmel, ATTINY461V-10PU Datasheet - Page 28
ATTINY461V-10PU
Manufacturer Part Number
ATTINY461V-10PU
Description
Microcontrollers (MCU) 4kB Flash 0.256kB EEPROM 16 I/O Pins
Manufacturer
Atmel
Specifications of ATTINY461V-10PU
Processor Series
ATTINY4x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
256 B
Interface Type
2-Wire/SPI/USI
Maximum Clock Frequency
10 MHz
Number Of Programmable I/os
16
Number Of Timers
2
Operating Supply Voltage
2.7 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
Minimum Operating Temperature
- 40 C
On-chip Adc
11-ch x 10-bit
Program Memory Type
Flash
Program Memory Size
4 KB
Package / Case
PDIP-20
Package
20PDIP
Device Core
AVR
Family Name
ATtiny
Maximum Speed
10 MHz
Ram Size
256 Byte
Operating Temperature
-40 to 85 °C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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6.2.3
28
ATtiny261/461/861
Calibrated Internal 8 MHz Oscillator
When the PLL output is selected as clock source, the start-up times are determined by SUT fuse
bits as shown in
Table 6-5.
By default, the Internal Oscillator provides an approximately 8 MHz clock signal. Though voltage
and temperature dependent, this clock can be very accurately calibrated by the user. See
19-2 on page 189
shipped with the CKDIV8 Fuse programmed. See
more details.
This clock may be selected as the system clock by programming the CKSEL Fuses as shown in
Table
the pre-programmed calibration value into the OSCCAL Register and thereby automatically cal-
ibrates the RC Oscillator. The accuracy of this calibration is shown as Factory calibration in
Table 19-2 on page
Table 6-6.
Notes:
When this oscillator is selected, start-up times are determined by SUT fuses as shown in
6-7.
Table 6-7.
Note:
SUT1:0
SUT1:0
10
00
01
10
11
00
01
11
(2)
6-6. If selected, it will operate with no external components. During reset, hardware loads
1. The device is shipped with this option selected.
2. If the oscillator frequency exceeds the specification of the device (depends on V
1. If the RSTDISBL fuse is programmed, this start-up time will be increased to 14CK + 4 ms to
2. The device is shipped with this option selected.
CKDIV8 Fuse can be programmed to divide the internal frequency by 8.
ensure programming mode can be entered.
14CK + 16K (16384) + 64 ms
14CK + 16K (16384) + 4 ms
CKSEL3:0
14CK + 1K (1024) + 64 ms
14CK + 1K (1024) + 4 ms
Start-up Times for the PLLCK
Internal Calibrated RC Oscillator Operating Modes
Start-up Times for the Internal Calibrated RC Oscillator Clock Selection
0010
Table
Start-up Time from
from Power-down
and
Power Down
(1)
189.
Start-up Time
6-5.
“Internal Oscillator Speed” on page 216
6 CK
6 CK
6 CK
Power-On-Reset (V
Additional Delay from
Additional Delay from
Reset (V
Reserved
14CK + 64 ms
14CK + 4 ms
“System Clock Prescaler” on page 31
14CK
4 ms
4 ms
4 ms
4 ms
CC
Nominal Frequency
(1)
= 5.0V)
CC
8.0 MHz
= 5.0V)
for more details. The device is
(2)
Recommended
Usage
BOD enabled
Fast rising power
Slowly rising power
Recommended
usage
BOD enabled
Fast rising power
Slowly rising power
Slowly rising power
2588E–AVR–08/10
CC
), the
Table
Table
for
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