ATTINY43U-MU Atmel, ATTINY43U-MU Datasheet - Page 2

• Manufacturer Part Number: ATTINY43U-MU
• Description: MCU AVR 4K FLASH 8MHZ 20-QFN
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY43U-MU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: USI
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 16
• Program Memory Size: 4KB (2K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 64 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-MLF®, QFN
• Processor Series: ATTINY4x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 16
• Number Of Timers: 2
• 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
• On-chip Adc: 10 bit, 4 Channel
• For Use With: ATSTK600-TINYX3U - STK600 SOCKET/ADAPTER TINYX3U
• 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
ATtiny43U
V
GND
Port A (PA7:PA0)
CC
Pinout of ATtiny43U
Supply voltage.
Ground.
Port A is a 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The
Port A output buffers have symmetrical drive characteristics with both high sink and source
(USCK/SCL/PCINT14)
(DO/OC1B/PCINT13)
(T1/CLKO/PCINT11) PB
(DI/OC1A/PCINT12)
(USCK/SCL/PCINT14) PB6
(OC0B/PCINT9) PB2
(DO/OC1B/PCINT13) PB5
NOTE: Bottom pad should
(T1/CLKO/PCINT11) PB3
(DI/OC1A/PCINT12) PB4
be Soldered to ground.
(OC0B/PCINT10) PB2
(OC0A/PCINT9) PB1
(INT0/PCINT15) PB7
(T0/PCINT8) PB0
PB4
PB5
PB6
QFN/MLF Top View
3
GND
VCC
1
2
3
4
5
1
2
3
4
5
6
7
8
9
10
SOIC
20
19
18
17
16
15
14
13
12
11
15
14
13
12
11
PA7 (RESET/dW/PCINT7)
PA6 (CLKI/PCINT6)
PA5 (AIN1/PCINT5)
PA4 (AIN0/PCINT4)
PA3 (ADC3/PCINT3)
PA2 (ADC2/PCINT2)
PA1 (ADC1/PCINT1)
PA0 (ADC0/PCINT0)
VBAT
LSW
PA4 (AIN0/
PA3 (ADC3/
PA2 (ADC2/
PA1 (ADC1/
PA0 (ADC0/
PCINT4
PCINT3
PCINT2
PCINT1
PCINT0
)
)
)
)
)
8048B–AVR–03/09