ATTINY2313-20PU Atmel, ATTINY2313-20PU Datasheet - Page 108

IC MCU AVR 2K FLASH 20DIP

ATTINY2313-20PU

Manufacturer Part Number
ATTINY2313-20PU
Description
IC MCU AVR 2K FLASH 20DIP
Manufacturer
Atmel
Series
AVR® ATtinyr

Specifications of ATTINY2313-20PU

Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Connectivity
SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
18
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
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
20-DIP (0.300", 7.62mm)
Package
20PDIP
Device Core
AVR
Family Name
ATtiny
Maximum Speed
20 MHz
Operating Supply Voltage
3.3|5 V
Data Bus Width
8 Bit
Number Of Programmable I/os
18
Interface Type
SPI/USART/USI
Number Of Timers
2
Processor Series
ATTINY2x
Core
AVR8
Data Ram Size
128 B
Maximum Clock Frequency
20 MHz
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
Minimum Operating Temperature
- 40 C
Cpu Family
ATtiny
Device Core Size
8b
Frequency (max)
20MHz
Total Internal Ram Size
128Byte
# I/os (max)
18
Number Of Timers - General Purpose
2
Operating Supply Voltage (typ)
3.3/5V
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (min)
2.7V
Instruction Set Architecture
RISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Through Hole
Pin Count
20
Package Type
PDIP
For Use With
ATSTK600-DIP40 - STK600 SOCKET/ADAPTER 40-PDIP770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATAVRDRAGON - KIT DRAGON 32KB FLASH MEM AVRATAVRISP2 - PROGRAMMER AVR IN SYSTEMATJTAGICE2 - AVR ON-CHIP D-BUG SYSTEM
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Converters
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant

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Quantity
Price
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ATTINY2313-20PU
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Company:
Part Number:
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53
Timer/Counter1
Control Register C –
TCCR1C
Timer/Counter1 –
TCNT1H and TCNT1L
Output Compare
Register 1 A –
OCR1AH and OCR1AL
108
ATtiny2313
• Bit 7 – FOC1A: Force Output Compare for Channel A
• Bit 6 – FOC1B: Force Output Compare for Channel B
The FOC1A/FOC1B bits are only active when the WGM13:0 bits specifies a non-PWM mode.
However, for ensuring compatibility with future devices, these bits must be set to zero when
TCCR1A is written when operating in a PWM mode. When writing a logical one to the
FOC1A/FOC1B bit, an immediate compare match is forced on the Waveform Generation unit.
The OC1A/OC1B output is changed according to its COM1x1:0 bits setting. Note that the
FOC1A/FOC1B bits are implemented as strobes. Therefore it is the value present in the
COM1x1:0 bits that determine the effect of the forced compare.
A FOC1A/FOC1B strobe will not generate any interrupt nor will it clear the timer in Clear Timer
on Compare match (CTC) mode using OCR1A as TOP.
The FOC1A/FOC1B bits are always read as zero.
The two Timer/Counter I/O locations (TCNT1H and TCNT1L, combined TCNT1) give direct
access, both for read and for write operations, to the Timer/Counter unit 16-bit counter. To
ensure that both the high and low bytes are read and written simultaneously when the CPU
accesses these registers, the access is performed using an 8-bit temporary high byte register
(TEMP). This temporary register is shared by all the other 16-bit registers.
Registers” on page 84.
Modifying the counter (TCNT1) while the counter is running introduces a risk of missing a com-
pare match between TCNT1 and one of the OCR1x Registers.
Writing to the TCNT1 Register blocks (removes) the compare match on the following timer clock
for all compare units.
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
FOC1A
R/W
R/W
W
7
0
7
0
7
0
FOC1B
R/W
R/W
W
6
0
6
0
6
0
R/W
R/W
R
5
0
5
0
5
0
R/W
R/W
OCR1A[15:8]
R
TCNT1[15:8]
0
4
0
4
0
4
OCR1A[7:0]
TCNT1[7:0]
R/W
R/W
3
0
3
0
R
3
0
R/W
R/W
2
0
2
0
R
2
0
R/W
R/W
1
0
1
0
R
1
0
R/W
R/W
0
0
0
0
R
0
0
See “Accessing 16-bit
OCR1AH
OCR1AL
TCNT1H
TCNT1L
TCCR1C
2543L–AVR–08/10

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