Microchip, 8bit AVR, ATtiny45 Microcontroller, 20MHz, 4 kB Flash, 8-Pin SOIJ

View all Microcontrollers
Bulk discount available

Subtotal (1 pack of 5 units)*

HK$54.10

Add to Basket
Select or type quantity
In Stock
  • 30 unit(s) ready to ship
  • Plus 195 unit(s) ready to ship from another location
  • Plus 190 unit(s) shipping from 12 December 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per unit
Per Pack*
5 - 5HK$10.82HK$54.10
10 - 20HK$10.60HK$53.00
25 +HK$10.38HK$51.90

*price indicative

Packaging Options:
RS Stock No.:
133-1645
Mfr. Part No.:
ATTINY45-20SU
Manufacturer:
Microchip
Find similar products by selecting one or more attributes.
Select all

Brand

Microchip

Family Name

ATtiny45

Package Type

SOIJ

Mounting Type

Surface Mount

Pin Count

8

Device Core

AVR

Data Bus Width

8bit

Program Memory Size

4 kB

Maximum Frequency

20MHz

RAM Size

256 B

USB Channels

0

Number of PWM Units

1

Number of SPI Channels

1

Number of I2C Channels

1

Number of CAN Channels

0

Typical Operating Supply Voltage

2.7 → 5.5 V

Number of USART Channels

0

Number of UART Channels

0

Pulse Width Modulation

1 (6 Channel)

Dimensions

5.35 x 5.4 x 1.91mm

Width

5.4mm

Height

1.91mm

Number of LIN Channels

0

Number of Ethernet Channels

0

Number of PCI Channels

0

Program Memory Type

Flash

Minimum Operating Temperature

-40 °C

Instruction Set Architecture

RISC

Maximum Number of Ethernet Channels

0

ADCs

4 x 10 bit

Length

5.35mm

Number of ADC Units

1

Maximum Operating Temperature

+85 °C

8-Bit tinyAVR® Microcontrollers


Atmel's tinyAVR® devices are optimized for applications that require performance, power efficiency, and ease-of-use in a small package.

Small for applications where size is critical
Capacitive Touch
Fast and code efficient
High integration
1.8V to 5.5V operation (ATtiny43U)

For these non-cancellable (NC), and non-returnable (NR) products, Terms and Conditions apply.


Related links