ATTINY43U-MU Atmel, ATTINY43U-MU Datasheet - Page 5

• 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

architecture is more code efficient while achieving throughputs up to ten times faster than con-
ventional CISC microcontrollers.
The ATtiny43U provides the following features: 4K byte of In-System Programmable Flash, 64
bytes EEPROM, 256 bytes SRAM, 16 general purpose I/O lines, 32 general purpose working
registers, two 8-bit Timer/Counters with two PWM channels, Internal and External Interrupts, a
4-channel 10-bit ADC, Universal Serial Interface, a programmable Watchdog Timer with internal
Oscillator, internal calibrated oscillator, and three software selectable power saving modes. The
Idle mode stops the CPU while allowing the SRAM, Timer/Counter, ADC, Analog Comparator,
and Interrupt system to continue functioning. The Power-down mode saves the register con-
tents, disabling all chip functions until the next Interrupt or Hardware Reset. The ADC Noise
Reduction mode stops the CPU and all I/O modules except ADC, to minimize switching noise
during ADC conversions.
A special feature of ATtiny43U is the built-in boost voltage converter, which provides 3V supply
voltage from an external, low voltage.
The device is manufactured using Atmel’s high density non-volatile memory technology. The
On-chip ISP Flash allows the Program memory to be re-programmed In-System through an SPI
serial interface, by a conventional non-volatile memory programmer or by an On-chip boot code
running on the AVR core.
The ATtiny43U AVR is supported by a full suite of program and system development tools
including: C Compilers, Macro Assemblers, Program Debugger/Simulators, In-Circuit Emulators,
and Evaluation kits.
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8048B–AVR–03/09