ATTINY43U-MU Atmel, ATTINY43U-MU Datasheet - Page 89

• 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

8048B–AVR–03/09
Figure 12-8. Timer/Counter Timing Diagram, no Prescaling
Figure 12-9 on page 89
Figure 12-9. Timer/Counter Timing Diagram, with Prescaler (f
Figure 12-10 on page 89
except CTC mode and PWM mode, where OCRnA is TOP.
Figure 12-10. Timer/Counter Timing Diagram, Setting of OCFnx, with Prescaler (f
Figure 12-11 on page 90
and fast PWM mode where OCRnA is TOP.
TCNTn
TCNTn
(clk
TCNTn
(clk
OCRnx
(clk
OCFnx
TOVn
TOVn
clk
clk
clk
clk
clk
clk
I/O
I/O
I/O
I/O
I/O
Tn
I/O
Tn
Tn
/8)
/8)
/1)
OCRnx - 1
MAX - 1
MAX - 1
shows the same timing data, but with the prescaler enabled.
shows the setting of OCFnA and the clearing of TCNTn in CTC mode
shows the setting of OCFnB in all modes and OCFnA in all modes
OCRnx
MAX
MAX
OCRnx Value
OCRnx + 1
BOTTOM
BOTTOM
clk_I/O
/8)
BOTTOM + 1
BOTTOM + 1
clk_I/O
OCRnx + 2
/8)
89