Rainbow-electronics ATtiny43U Manual de usuario Pagina 155
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8048B–AVR–03/09
20. Electrical Characteristics
20.1 Absolute Maximum Ratings*
20.2 DC Characteristics
Note: All DC Characteristics contained in this data sheet are based on simulation and characterization of other AVR microcontrollers
manufactured in the same process technology. These values are preliminary values representing design targets, and will be
updated after characterization of actual silicon.
Operating Temperature.................................. -55°C to +125°C
*NOTICE: Stresses beyond those listed under “Absolute
Maximum Ratings” may cause permanent dam-
age to the device. This is a stress rating only and
functional operation of the device at these or
other conditions beyond those indicated in the
operational sections of this specification is not
implied. Exposure to absolute maximum rating
conditions for extended periods may affect
device reliability.
Storage Temperature ..................................... -65°C to +150°C
Voltage on any Pin except RESET
with respect to Ground ................................-0.5V to V
CC
+0.5V
Voltage on RESET
with respect to Ground......-0.5V to +13.0V
Maximum Operating Voltage ............................................ 6.0V
DC Current per I/O Pin ............................................... 40.0 mA
DC Current
V
CC
and GND Pins................................ 200.0 mA
Table 20-1. DC Characteristics. T
A
= -40°C to 85°C
Symbol Parameter Condition Min. Typ. Max. Units
V
IL
Input Low Voltage,
Any Pin as I/O
V
CC
= 1.8V - 2.4V -0.5 0.2V
CC
(1)
V
V
CC
= 2.4V - 5.5V -0.5 0.3V
CC
(1)
V
Input Low Voltage,
RESET
Pin as Reset
(2)
V
CC
= 1.8V - 5.5V -0.5 0.2V
CC
(1)
V
V
IH
Input High-voltage,
Any Pin as I/O
V
CC
= 1.8V - 2.4V 0.7V
CC
(3)
V
CC
+0.5 V
V
CC
= 2.4V - 5.5V 0.6V
CC
(3)
V
CC
+0.5 V
Input High-voltage,
RESET
Pin as Reset
(2)
V
CC
= 1.8V to 5.5V
0.9 V
CC
(3)
V
CC
+0.5 V
V
OL
Output Low Voltage
(4)
,
Pins PB1, PB2, PB4 and PB5
(5)
I
OL
= 20 mA, V
CC
= 5V 0.8 V
I
OL
= 10 mA, V
CC
= 3V 0.8 V
I
OL
= 4 mA, V
CC
= 1.8V 0.8 V
Output Low Voltage
(4)
,
All Other I/O Pins, except RESET
pin
I
OL
= 10 mA, V
CC
= 5V 0.8 V
I
OL
= 5 mA, V
CC
= 3V 0.8 V
I
OL
= 2 mA, V
CC
= 1.8V 0.8 V
V
OH
Output High-voltage
(6)
All I/O Pins, except RESET pin
I
OH
= 10 mA, V
CC
= 5V 4.0 V
I
OH
= 5 mA, V
CC
= 3V 2.3 V
I
OH
= 2 mA, V
CC
= 1.8V 1.4 V
I
LIL
Input Leakage Current, I/O Pin V
CC
= 5.5V, pin low -1 1 µA
I
LIH
Input Leakage Current, I/O Pin V
CC
= 5.5V, pin high -1 1 µA
- Features 1
- 4. AVR CPU Core 7
- Initial Value00000000 9
- ATtiny43U 10
- 4.6 Stack Pointer 11
- 5. Memories 15
- 6.3 System Clock Prescaler 27
- 7.1 Sleep Modes 31
- 0 1 ADC Noise Reduction 35
- 1 0 Power-down 35
- 11Reserved 35
- SM1 SM0 Sleep Mode 35
- START MODE 41
- 8.6 Component Selection 43
- 8.11 Register Description 47
- 9.2 Reset Sources 49
- 9.3 Power-on Reset 49
- 9.6 Watchdog Reset 51
- 9.8 Watchdog Timer 51
- 10. Interrupts 57
- 10.3 Register Description 59
- DATA B U S 63
- INSTRUCTIONS 65
- SYNC LATCH 65
- SYSTEM CLK 65
- 11.3 Alternate Port Functions 67
- 12.1 Features 79
- 12.2 Overview 79
- 12.5 Output Compare Unit 81
- DATA BU S 83
- (Toggle) 85
- MAX - 1 MAX BOTTOM BOTTOM + 1 89
- 13.3 Register Description 99
- 14.3 Functional Descriptions 101
- 8048B–AVR–03/09 103
- A B D EC F 105
- 14.4 Alternative USI Usage 107
- 14.5 Register Descriptions 107
- Initial Value 0 0 0 0 0 0 0 0 109
- Bit 7 6 5 4 3 2 1 0 109
- 0x0E (0x2E) 109
- 0x10 (0x30) MSB LSB USIBR 111
- Read/Write R R R R R R R R 111
- 15.2 Register Description 113
- 16.1 Features 115
- 16.2 Overview 115
- 16.7 ADC Noise Canceler 121
- Output Code 123
- 16.11 ADC Conversion Result 125
- 16.12 Temperature Measurement 125
- 17.1 Features 131
- 17.2 Overview 131
- 17.3 Physical Interface 131
- Bit 76543210 135
- Rd ––––––LB2LB1 135
- 18.9 Register Description 137
- 19. Memory Programming 139
- 19.7 Serial Programming 151
- 20.2 DC Characteristics 155
- 20.4 Clock Characteristics 157
- Gain Calibration) 161
- = 5V ± 10% 163
- 21.1 Boost Converter 165
- 22. Register Summary 167
- 23. Instruction Set Summary 169
- 24. Ordering Information 171
- 25.2 20S2 173
- 27.1 Rev. 8048B-03/09 175
- 27.2 Rev. 8048A-02/09 175
- Table of Contents 177
- Headquarters International 182
- Product Contact 182
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