ATTINY28L-4AU Atmel, ATTINY28L-4AU Datasheet - Page 64

• Manufacturer Part Number: ATTINY28L-4AU
• Description: IC MCU AVR 2K FLASH 4MHZ 32-TQFP
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY28L-4AU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 4MHz
• Peripherals: POR, WDT
• Number Of I /o: 11
• Program Memory Size: 2KB (1K x 16)
• Program Memory Type: FLASH
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-TQFP, 32-VQFP
• Processor Series: ATTINY2x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 32 B
• Maximum Clock Frequency: 4 MHz
• Number Of Programmable I/os: 11
• Number Of Timers: 1
• 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: 8 bit
• Package: 32TQFP
• Device Core: AVR
• Family Name: ATtiny
• Maximum Speed: 4 MHz
• Ram Size: 32 Byte
• Operating Supply Voltage: 3.3|5 V
• For Use With: ATSTK600-DIP40 - STK600 SOCKET/ADAPTER 40-PDIPATSTK500 - PROGRAMMER AVR STARTER KIT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Ram Size: -
• Data Converters: -
• Connectivity: -
• Lead Free Status / Rohs Status: Details

64
ATtiny28L/V
Figure 55. Calibrated Internal RC Oscillator Frequency vs. V
Figure 56. Watchdog Oscillator Frequency vs. V
1600
1400
1200
1000
1.28
1.26
1.24
1.22
1.18
1.16
1.14
1.12
800
600
400
200
1.2
1.1
0
1.5
2
2
2.5
CALIBRATED RC OSCILLATOR FREQUENCY vs.
2.5
3
OPERATING VOLTAGE
3
3.5
3.5
V
cc
V
(V)
CC
4
(V)
4
CC
4.5
4.5
5
CC
5
T
A
= 25˚C
5.5
5.5
T = 85
T = 25
A
A
T
A
= 85˚C
˚
˚
1062F–AVR–07/06
C
C
6
6
T = 45
T = 70
A
A
˚
˚
C
C