ATTINY25-20SUR Atmel, ATTINY25-20SUR Datasheet - Page 2

• Manufacturer Part Number: ATTINY25-20SUR
• Description: MCU AVR 2KB FLASH 20MHZ 8SOIC
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY25-20SUR

• 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: 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
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• 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