ATTINY861-15MZ Atmel, ATTINY861-15MZ Datasheet - Page 70
![MCU AVR 8K FLASH 15MHZ 32-QFN](/photos/30/99/309943/qfn-32_sml.jpg)
ATTINY861-15MZ
Manufacturer Part Number
ATTINY861-15MZ
Description
MCU AVR 8K FLASH 15MHZ 32-QFN
Manufacturer
Atmel
Series
AVR® ATtinyr
Datasheet
1.ATTINY861-15MZ.pdf
(236 pages)
Specifications of ATTINY861-15MZ
Package / Case
32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Speed
16MHz
Number Of I /o
16
Eeprom Size
512 x 8
Core Processor
AVR
Program Memory Type
FLASH
Ram Size
512 x 8
Program Memory Size
8KB (8K x 8)
Data Converters
A/D 11x10b
Oscillator Type
Internal
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Connectivity
USI
Core Size
8-Bit
Processor Series
ATTINY8x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
512 B
Interface Type
SPI
Maximum Clock Frequency
16 MHz
Number Of Programmable I/os
16
Number Of Timers
2
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, ATAVRMC320
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 11 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATTINY861-15MZ
Manufacturer:
ATMEL
Quantity:
1 465
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13.1
13.1.1
70
Register Description
ATtiny261/461/861
TCCR0B – Timer/Counter0 Control Register B
An external clock source can not be prescaled.
Figure 13-2. Prescaler for Timer/Counter0
Note:
• Bit 4 – TSM: Timer/Counter Synchronization Mode
Writing the TSM bit to one activates the Timer/Counter Synchronization mode. In this mode, the
value that is written to the PSR0 bit is kept, hence keeping the Prescaler Reset signal asserted.
This ensures that the Timer/Counter is halted and can be configured without the risk of advanc-
ing during configuration. When the TSM bit is written to zero, the PSR0 bit is cleared by
hardware, and the Timer/Counter start counting.
• Bit 3 – PSR0: Prescaler Reset Timer/Counter0
When this bit is one, the Timer/Counter0 prescaler will be Reset. This bit is normally cleared
immediately by hardware, except if the TSM bit is set.
• Bits 2, 1, 0 – CS02, CS01, CS00: Clock Select0, Bit 2, 1, and 0
The Clock Select0 bits 2, 1, and 0 define the prescaling source of Timer0.
Bit
0x33 (0x53)
Read/Write
Initial Value
1. The synchronization logic on the input pins (
PSR0
clk
T0
I/O
R
7
0
-
Synchronization
R
6
0
-
R
5
0
-
Clear
TSM
R/W
4
0
T0)
PSR0
R/W
3
0
is shown in
CS02
R/W
2
0
Figure
clk
T0
CS01
R/W
13-1.
1
0
CS01
R/W
0
0
2588B–AVR–11/06
TCCR0B
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