Atmel ATtiny2313-20PU

Reference Designs (3)

Attributes

Part Number
Manufacturer
Description
Datasheet
Prefix
U
Imported From Octopart
yes
Lead Free
Yes
Octopart Part Number
565b9f563a6e899c
Package
DIP-20
RoHS
Yes
Access Time
0.02ms
Max Clock Speed
20 MHz
Max Operating Temperature
85°C
Max Supply Voltage Dc
5.50V
Memory Size
28kB
Mounting Type
Through Hole
Number Of I O Pins
20

Pins

1
PA2
2
PD0
3
PD1
4
PA1
5
PA0
6
PD2
7
PD3
8
PD4
9
PD5
10
GND
11
PD6
12
PB0
13
PB1
14
PB2
15
PB3
16
PB4
17
PB5
18
PB6
19
PB7
20
VCC

Contributors

Datasheet Preview

Features
Utilizes the AVR
®
RISC Architecture
AVR – High-performance and Low-power RISC Architecture
120 Powerful Instructions – Most Single Clock Cycle Execution
32 x 8 General Purpose Working Registers
Fully Static Operation
Up to 20 MIPS Throughput at 20 MHz
Data and Non-volatile Program and Data Memories
2K Bytes of In-System Self Programmable Flash
Endurance 10,000 Write/Erase Cycles
128 Bytes In-System Programmable EEPROM
Endurance: 100,000 Write/Erase Cycles
128 Bytes Internal SRAM
Programming Lock for Flash Program and EEPROM Data Security
Peripheral Features
One 8-bit Timer/Counter with Separate Prescaler and Compare Mode
One 16-bit Timer/Counter with Separate Prescaler, Compare and Capture Modes
Four PWM Channels
On-chip Analog Comparator
Programmable Watchdog Timer with On-chip Oscillator
USI – Universal Serial Interface
Full Duplex USART
Special Microcontroller Features
debugWIRE On-chip Debugging
In-System Programmable via SPI Port
External and Internal Interrupt Sources
Low-power Idle, Power-down, and Standby Modes
Enhanced Power-on Reset Circuit
Programmable Brown-out Detection Circuit
Internal Calibrated Oscillator
I/O and Packages
18 Programmable I/O Lines
20-pin PDIP, 20-pin SOIC, 20-pad QFN/MLF
Operating Voltages
1.8 - 5.5V (ATtiny2313V)
2.7 - 5.5V (ATtiny2313)
Speed Grades
ATtiny2313V: 0 - 4 MHz @ 1.8 - 5.5V, 0 - 10 MHz @ 2.7 - 5.5V
ATtiny2313: 0 - 10 MHz @ 2.7 - 5.5V, 0 - 20 MHz @ 4.5 - 5.5V
Typical Power Consumption
Active Mode
1 MHz, 1.8V: 230 µA
32 kHz, 1.8V: 20 µA (including oscillator)
Power-down Mode
< 0.1 µA at 1.8V
8-bit
Microcontroller
with 2K Bytes
In-System
Programmable
Flash
ATtiny2313/V
Preliminary
Summary
Rev. 2543IS–AVR–04/06
2
ATtiny2313/V
2543IS–AVR–04/06
Pin Configurations Figure 1. Pinout ATtiny2313
Overview The ATtiny2313 is a low-power CMOS 8-bit microcontroller based on the AVR
enhanced RISC architecture. By executing powerful instructions in a single clock cycle,
the ATtiny2313 achieves throughputs approaching 1 MIPS per MHz allowing the system
designer to optimize power consumption versus processing speed.
(RESET/dW) PA2
(RXD) PD0
(TXD) PD1
(XTAL2) PA1
(XTAL1) PA0
(CKOUT/XCK/INT0) PD2
(INT1) PD3
(T0) PD4
(OC0B/T1) PD5
GND
20
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
VCC
PB7 (UCSK/SCL/PCINT7)
PB6 (MISO/DO/PCINT6)
PB5 (MOSI/DI/SDA/PCINT5)
PB4 (OC1B/PCINT4)
PB3 (OC1A/PCINT3)
PB2 (OC0A/PCINT2)
PB1 (AIN1/PCINT1)
PB0 (AIN0/PCINT0)
PD6 (ICP)
PDIP/SOIC
1
2
3
4
5
MLF
15
14
13
12
11
20
19
18
17
16
6
7
8
9
10
(TXD) PD1
XTAL2) PA1
(XTAL1) PA0
(
CKOUT/XCK/INT0) PD2
(INT1) PD3
(T0) PD4
(OC0B/T1) PD5
GND
(ICP) PD6
(AIN0/PCINT0) PB0
PB5 (MOSI/DI/SDA/PCINT
5)
PB4 (OC1B/PCINT4)
PB3 (OC1A/PCINT3)
PB2 (OC0A/PCINT2)
PB1 (AIN1/PCINT1)
PD0 (RXD)
PA2 (RESET/dW)
VCC
PB7 (UCSK/SCK/PCINT7)
PB6 (MISO/DO/PCINT6)
NOTE: Bottom pad should be soldered to ground.
3
ATtiny2313/V
2543IS–AVR–04/06
Block Diagram
Figure 2. Block Diagram
PROGRAM
COUNTER
PROGRAM
FLASH
INSTRUCTION
REGISTER
GND
V
CC
INSTRUCTION
DECODER
CONTROL
LINES
STACK
POINTER
SRAM
GENERAL
PURPOSE
REGISTER
ALU
STATUS
REGISTER
PROGRAMMING
LOGIC
SPI
8-BIT DATA BUS
XTAL1
XTAL2
RESE
T
INTERNAL
OSCILLATOR
OSCILLATOR
WATCHDOG
TIMER
TIMING AND
CONTROL
MCU CONTROL
REGISTER
MCU STATUS
REGISTER
TIMER/
COUNTERS
INTERRUPT
UNIT
EEPROM
USI
USART
ANALOG
COMPARATOR
DATA REGISTER
PORTB
DATA DIR.
REG. PORTB
DATA REGISTER
PORTA
DATA DIR.
REG. PORTA
PORTB DRIVERS
PB0 - PB7
PORTA DRIVERS
PA0 - PA2
DATA REGISTER
PORTD
DATA DIR.
REG. PORTD
PORTD DRIVERS
PD0 - PD6
ON-CHIP
DEBUGGER
INTERNAL
CALIBRATED
OSCILLATOR
4
ATtiny2313/V
2543IS–AVR–04/06
The AVR core combines a rich instruction set with 32 general purpose working registers.
All the 32 registers are directly connected to the Arithmetic Logic Unit (ALU), allowing
two independent registers to be accessed in one single instruction executed in one clock
cycle. The resulting architecture is more code efficient while achieving throughputs up to
ten times faster than conventional CISC microcontrollers.
The ATtiny2313 provides the following features: 2K bytes of In-System Programmable
Flash, 128 bytes EEPROM, 128 bytes SRAM, 18 general purpose I/O lines, 32 general
purpose working registers, a single-wire Interface for On-chip Debugging, two flexible
Timer/Counters with compare modes, internal and external interrupts, a serial program-
mable USART, Universal Serial Interface with Start Condition Detector, a programmable
Watchdog Timer with internal Oscillator, and three software selectable power saving
modes. The Idle mode stops the CPU while allowing the SRAM, Timer/Counters, and
interrupt system to continue functioning. The Power-down mode saves the register con-
tents but freezes the Oscillator, disabling all other chip functions until the next interrupt
or hardware reset. In Standby mode, the crystal/resonator Oscillator is running while the
rest of the device is sleeping. This allows very fast start-up combined with low-power
consumption.
The device is manufactured using Atmel’s high density non-volatile memory technology.
The On-chip ISP Flash allows the program memory to be reprogrammed In-System
through an SPI serial interface, or by a conventional non-volatile memory programmer.
By combining an 8-bit RISC CPU with In-System Self-Programmable Flash on a mono-
lithic chip, the Atmel ATtiny2313 is a powerful microcontroller that provides a highly
flexible and cost effective solution to many embedded control applications.
The ATtiny2313 AVR is supported with a full suite of program and system development
tools including: C Compilers, Macro Assemblers, Program Debugger/Simulators, In-Cir-
cuit Emulators, and Evaluation kits.