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Electrical Characteristics
Absolute Maximum Ratings
Operating Temperature.................................. -55
°
C to +125
°
C
Storage Temperature ..................................... -65°C to +150°C
Voltage on Any Pin Except RESET with Respect to Ground ............................. -1.0V to V
CC
+ 0.5V
Voltage on RESET with Respect to Ground ....-1.0V to +13.0V
Maximum Operating Voltage ............................................ 6.0V
DC Current per I/O Pin ............................................... 40.0 mA
DC Current
V
CC
and GND Pins................................ 100.0 mA
*NOTICE: Stresses beyond those listed under “Absolute
Maximum Ratings” may cause permanent damage 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.
DC Characteristics
T
A
= -40
°
C to 85
°
C, V
CC
= 2.7V to 5.5V
Symbol Parameter Condition
V
IL
V
IL1
V
IH
V
IH1
V
IH2
V
OL
V
OL
V
OH
I
IL
I
IH
R
I/O
Input Low Voltage
Input Low Voltage
Input High Voltage
Input High Voltage
Input High Voltage
Output Low Voltage
(1)
Port B
Output Low Voltage
PB5
Output High Voltage
(4)
Port B
Input Leakage Current
I/O Pin
Input Leakage Current
I/O Pin
I/O Pin Pull-up
Except (XTAL)
XTAL
Except (XTAL, RESET)
XTAL
RESET
I
OL
= 20 mA, V
CC
= 5V
I
OL
= 10 mA, V
CC
= 3V
I
I
OL
= 12 mA, V
CC
= 5V
OL
= 6 mA, V
CC
= 3V
I
OH
= -3 mA, V
CC
= 5V
I
OH
= -1.5 mA, V
CC
= 3V
V
CC
= 5.5V, Pin Low
(absolute value)
V
CC
= 5.5V, Pin High
(absolute value)
I
CC
Power Supply Current
Active, V
CC
= 3V
Idle, V
CC
= 3V
Power-down
(2)
, V
CC
= 3V
WDT enabled
Power-down
(2)
, V
CC
= 3V
WDT disabled
Min
-0.5
-0.5
0.6 V
CC
(2)
0.7 V
CC
(2)
0.85 V
CC
(2)
4.3
2.3
35.0
Typ
1.0
9.0
<1.0
8.0
8.0
122
3.0
1.2
15.0
2.0
Max
0.3 V
CC
(1)
0.1 V
CC
(1)
V
CC
+ 0.5
V
CC
+ 0.5
V
CC
+ 0.5
0.6
0.5
0.6
0.5
µA k
Ω mA mA
µA
Units
V
V
V
V
V
V
V
V
V
V
V
µA
µA
64
ATtiny15L
1187H–AVR–09/07
ATtiny15L
DC Characteristics (Continued)
T
A
= -40
°
C to 85
°
C, V
CC
= 2.7V to 5.5V
Symbol Parameter Condition Min Typ Max Units
I
V
ACIO
ACLK
Analog Comparator
Input Offset Voltage
Analog Comparator
Input Leakage Current
V
CC
= 5V
V
IN
= V
CC
/2
V
CC
= 5V
V
IN
= V
CC
/2
-50.0
40.0
50.0
mV nA
T
ACID
Analog Comparator
Initialization Delay
V
CC
= 2.7V
V
CC
= 4.0V
750.0
500.0
ns
Note: 1. “Max” means the highest value where the pin is guaranteed to be read as low.
2. “Min” means the lowest value where the pin is guaranteed to be read as high.
3. Although each I/O port can sink more than the test conditions (20 mA at V
CC
= 5V, 10 mA at V
CC
= 3V) under steady state conditions (non-transient), the following must be observed:
1] The sum of all I
OL
, for all ports, should not exceed 100 mA.
If I
OL
exceeds the test condition, V
OL
may exceed the related specification.
Pins are not guaranteed to sink current greater than the listed test conditions.
4. Although each I/O port can source more than the test conditions (3 mA at V
CC
= 5V, 1.5 mA at V
CC
= 3V) under steady state conditions (non-transient), the following must be observed:
1] The sum of all I
OH
, for all ports, should not exceed 100 mA.
If I
OH
exceeds the test condition, V
OH
may exceed the related specification. Pins are not guaranteed to source current greater than the listed test condition.
5. Minimum V
CC
for Power-down is 1.5V (only with BOD disabled).
65
1187H–AVR–09/07
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Table of contents
- 1 Features
- 1 Pin Configuration
- 2 Description
- 3 Block Diagram
- 4 Pin Descriptions
- 4 VCC
- 4 GND
- 4 Port B (PB5..PB0)
- 4 Analog Pins
- 4 Internal Oscillators
- 5 ATtiny15L Architectural Overview
- 6 The General Purpose Register File
- 6 The ALU - Arithmetic Logic Unit
- 6 The Flash Program Memory
- 7 The Program and Data Addressing Modes
- 7 Register Direct, Single- register Rd
- 7 Register Indirect
- 7 Register Direct, Two Registers Rd and Rr
- 8 I/O Direct
- 8 Relative Program Addressing, RJMP and RCALL
- 8 Constant Addressing using the LPM Instruction
- 9 Subroutine and Interrupt Hardware Stack
- 9 The EEPROM Data Memory
- 9 Memory Access and Instruction Execution Timing
- 10 I/O Memory
- 11 The Status Register - SREG
- 12 Reset and Interrupt Handling
- 13 ATtiny15L Reset Sources
- 15 Power-on Reset
- 16 External Reset
- 17 Brown-out Detection
- 17 Watchdog Reset
- 18 MCU Status Register - MCUSR
- 18 Internal Voltage Reference
- 18 Voltage Reference Enable Signals and Start-up Time
- 19 Interrupt Handling
- 19 Interrupt Response Time
- 19 The General Interrupt Mask Register - GIMSK
- 20 The General Interrupt Flag Register - GIFR
- 20 The Timer/Counter Interrupt Mask Register - TIMSK
- 21 The Timer/Counter Interrupt Flag Register - TIFR
- 22 External Interrupt
- 22 Pin Change Interrupt
- 22 The MCU Control Register - MCUCR
- 23 Sleep Modes
- 23 Idle Mode
- 24 ADC Noise Reduction Mode
- 24 Power-down Mode
- 24 Tuneable Internal RC Oscillator
- 24 The System Clock Oscillator Calibration Register - OSCCAL
- 24 Internal PLL for Fast Peripheral Clock Generation
- 25 Timer/Counters
- 25 The Timer/Counter0 Prescaler
- 25 The Timer/Counter1 Prescaler
- 26 The Special Function IO Register - SFIOR
- 26 The 8-bit Timer/Counter0
- 27 The Timer/Counter0 Control Register - TCCR0
- 28 The Timer Counter 0 - TCNT0
- 28 The 8-bit Timer/Counter1
- 29 The Timer/Counter1 Control Register - TCCR1
- 30 The Timer/Counter1 - TCNT1
- 31 Timer/Counter1 Output Compare RegisterA - OCR1A
- 31 Timer/Counter1 in PWM Mode
- 32 Timer/Counter1 Output Compare RegisterB - OCR1B
- 34 The Watchdog Timer
- 34 The Watchdog Timer Control Register - WDTCR
- 36 EEPROM Read/Write Access
- 36 The EEPROM Address Register - EEAR
- 36 The EEPROM Data Register - EEDR
- 37 The EEPROM Control Register - EECR
- 38 Preventing EEPROM Corruption
- 39 The Analog Comparator
- 39 The Analog Comparator Control and Status Register - ACSR
- 41 The Analog-to-Digital Converter, Analog Multiplexer, and Gain Stages
- 41 Features
- 42 Operation
- 43 Prescaling and Conversion Timing
- 46 ADC Noise Canceler Function
- 46 The ADC Multiplexer Selection Register - ADMUX
- 47 The ADC Control and Status Register - ADCSR
- 49 The ADC Data Register - ADCL and ADCH
- 49 ADLAR = 0
- 49 ADLAR = 1
- 49 Scanning Multiple Channels
- 50 ADC Noise-canceling Techniques
- 50 ADC Characteristics
- 51 I/O Port B
- 51 Unconnected Pins
- 51 Alternative Functions of Port B
- 51 The Port B Data Register - PORTB
- 51 The Port B Data Direction Register - DDRB
- 52 The Port B Input Pins Address - PINB
- 52 PORT B as General Digital I/O
- 52 Alternate Functions of Port B
- 54 Memory Programming
- 54 Program and Data Memory Lock Bits
- 54 Fuse Bits
- 54 Signature Bytes
- 55 Calibration Byte
- 55 Programming the Flash
- 55 High-voltage Serial Programming
- 56 High-voltage Serial Programming Algorithm
- 59 High-voltage Serial Programming Characteristics
- 59 Low-voltage Serial Downloading
- 60 Low-voltage Serial Programming Algorithm
- 61 Data Polling
- 63 Low-voltage Serial Programming Characteristics
- 64 Electrical Characteristics
- 64 Absolute Maximum Ratings
- 64 DC Characteristics
- 66 Typical Characteristics
- 75 ATtiny15L Register Summary
- 76 ATtiny15L Instruction Set Summary
- 78 Ordering Information
- 80 Packaging Information
- 80 8P3
- 81 8S2
- 82 Datasheet revision history
- 82 Rev H - 09/07
- 82 Rev G - 06/07
- 82 Rev F - 06/05
- 83 Table of Contents