ATTINY45-20SH Atmel, ATTINY45-20SH Datasheet - Page 2
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ATTINY45-20SH
Manufacturer Part Number
ATTINY45-20SH
Description
IC MCU AVR 4KB FLASH 20MHZ 8SOIC
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY45-20SH
Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Connectivity
USI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
6
Program Memory Size
4KB (2K x 16)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
2.7 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
256 B
Interface Type
SPI, USI
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
6
Number Of Timers
2
Operating Supply Voltage
5 V
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
Minimum Operating Temperature
- 40 C
Operating Temperature Range
- 40 C to + 85 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
1. Pin Configurations
Figure 1-1.
1.1
1.1.1
1.1.2
1.1.3
2
Pin Descriptions
(PCINT4/XTAL2/CLKO/OC1B/ADC2) PB4
ATtiny25/45/85
(PCINT3/XTAL1/CLKI/OC1B/ADC3) PB3
VCC
GND
Port B (PB5:PB0)
(PCINT4/XTAL2/CLKO/OC1B/ADC2) PB4
Pinout ATtiny25/45/85
(PCINT3/XTAL1/CLKI/OC1B/ADC3) PB3
(PCINT5/RESET/ADC0/dW) PB5
(PCINT5/RESET/ADC0/dW) PB5
Supply voltage.
Ground.
Port B is a 6-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The
Port B output buffers have symmetrical drive characteristics with both high sink and source
capability. As inputs, Port B pins that are externally pulled low will source current if the pull-up
NOTE: Bottom pad should be soldered to ground.
DNC: Do Not Connect
DNC
DNC
GND
PDIP/SOIC/TSSOP
1
2
3
4
5
NOTE: TSSOP only for ATtiny45/V
QFN/MLF
1
2
3
4
8
7
6
5
15
14
13
12
11
VCC
PB2 (SCK/USCK/SCL/ADC1/T0/INT0/PCINT2)
PB1 (MISO/DO/AIN1/OC0B/OC1A/PCINT1)
PB0 (MOSI/DI/SDA/AIN0/OC0A/OC1A/AREF/PCINT0)
VCC
PB2 (SCK/USCK/SCL/ADC1/T0/INT0/PCINT2)
DNC
PB1 (MISO/DO/AIN1/OC0B/OC1A/PCINT1)
PB0 (MOSI/DI/SDA/AIN0/OC0A/OC1A/AREF/PCINT0)
2586M–AVR–07/10