ATTINY25V-10SH Atmel, ATTINY25V-10SH Datasheet - Page 105
![IC MCU AVR 2KB FLASH 10MHZ 8SOIC](/photos/6/50/65032/453-8-soic_sml.jpg)
ATTINY25V-10SH
Manufacturer Part Number
ATTINY25V-10SH
Description
IC MCU AVR 2KB FLASH 10MHZ 8SOIC
Manufacturer
Atmel
Series
AVR® ATtinyr
Datasheet
1.ATTINY25-20MU.pdf
(236 pages)
Specifications of ATTINY25V-10SH
Core Processor
AVR
Core Size
8-Bit
Speed
10MHz
Connectivity
USI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
6
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)
1.8 V ~ 5.5 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
8-SOIC (5.3mm Width), 8-SOP, 8-SOEIAJ
Processor Series
ATtiny
Core
AVR
Data Bus Width
8 bit
Data Ram Size
128 B
Interface Type
SPI, USI
Maximum Clock Frequency
10 MHz
Number Of Programmable I/os
6
Number Of Timers
2
Operating Supply Voltage
3.3 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Operating Temperature Range
- 40 C to + 85 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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13.3.2
13.3.3
13.3.4
2586M–AVR–07/10
GTCCR – General Timer/Counter1 Control Register
TCNT1 – Timer/Counter1
OCR1A – Timer/Counter1 Output Compare RegisterA
• Bit 2 – FOC1A: Force Output Compare Match 1A
Writing a logical one to this bit forces a change in the compare match output pin PB1 (OC1A)
according to the values already set in COM1A1 and COM1A0. If COM1A1 and COM1A0 written
in the same cycle as FOC1A, the new settings will be used. The Force Output Compare bit can
be used to change the output pin value regardless of the timer value. The automatic action pro-
grammed in COM1A1 and COM1A0 takes place as if a compare match had occurred, but no
interrupt is generated. The FOC1A bit always reads as zero. FOC1A is not in use if PWM1A bit
is set.
• Bit 1 – PSR1 : Prescaler Reset Timer/Counter1
When this bit is set (one), the Timer/Counter prescaler (TCNT1 is unaffected) will be reset. The
bit will be cleared by hardware after the operation is performed. Writing a zero to this bit will have
no effect. This bit will always read as zero.
This 8-bit register contains the value of Timer/Counter1.
Timer/Counter1 is realized as an up counter with read and write access. Due to synchronization
of the CPU, Timer/Counter1 data written into Timer/Counter1 is delayed by one CPU clock cycle
in synchronous mode and at most two CPU clock cycles for asynchronous mode.
The output compare register A is an 8-bit read/write register.
The Timer/Counter Output Compare Register A contains data to be continuously compared with
Timer/Counter1. Actions on compare matches are specified in TCCR1. A compare match does
only occur if Timer/Counter1 counts to the OCR1A value. A software write that sets TCNT1 and
OCR1A to the same value does not generate a compare match.
A compare match will set the compare interrupt flag OCF1A after a synchronization delay follow-
ing the compare event.
Bit
0x2C
Read/Write
Initial value
Bit
0x2F
Read/Write
Initial value
Bit
0x2E
Read/Write
Initial value
TSM
R/W
7
0
MSB
MSB
R/W
R/W
7
0
7
0
PWM1B
R/W
R/W
R/W
6
0
6
0
6
0
COM1B1
R/W
R/W
R/W
5
0
5
0
5
0
COM1B0
R/W
R/W
4
0
4
0
R/W
4
0
R/W
R/W
3
0
3
0
FOC1B
W
3
0
R/W
R/W
2
0
2
0
FOC1A
W
2
0
R/W
R/W
1
0
1
0
PSR1
R/W
1
0
LSB
R/W
LSB
R/W
0
0
0
0
PSR0
R/W
0
0
OCR1A
TCNT1
GTCCR
105
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