ATMEL ATtiny84 User Manual
BDTIC www.bdtic.com/ATMEL
Appendix B - ATtiny24V/ATtiny44V/ATtiny84V
Automotive Specification at 1.8V
This document contains information specific to devices operating at voltage between
1.8V and 3.6V. Only deviations with standard operating characteristics are covered in
this appendix, all other information can be found in the complete Automotive
datasheet. The complete ATtiny24/ATtiny44/ATtiny84 automotive datasheet can be
found on www.atmel.com
8-bit
Microcontroller
with 2/4/8K
Bytes In-System
Programmable
Flash
ATtiny24V
ATtiny44V
ATtiny84V
Appendix B
Preliminary
7819A–AVR–01/09
1. Electrical Characteristics
1.1 Absolute Maximum Ratings
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 any 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.
Parameters Value Unit
Operating temperature –40 to +85 °C
Storage temperature –65 to +175 °C
Voltage on any pin except RESET
Maximum operating voltage 6.0 V
DC current per I/O pin 30.0 mA
V
DC current
and GND pins 200.0 mA
CC
1.2 DC Characteristics
TA = –40° C to +85°C, VCC = 1.8V to 3.6V (unless otherwise noted)
Symbol Parameters Condition Min. Typ. Max. Unit
V
V
V
V
V
V
V
V
I
CC
V
ACIO
I
ACLK
Notes: 1. “Max” means the highest value where the pin is guaranteed to be read as low
Input low voltage, except XTAL1 and
IL
IH
IL1
IH1
IL2
IH2
OL
OH
pin
RESET
Input high voltage, except XTAL1
and RESET pins
Input low voltage, XTAL1 pin VCC = 1.8V to 3.6V –0.5 +0.2V
Input high voltage, XTAL1 pin VCC = 1.8V to 3.6V 0.9V
Input low voltage, RESET pin VCC = 1.8V to 3.6V –0.5 +0.2V
Input high voltage, RESET pin VCC = 1.8V to 3.6V 0.9V
Output low voltage
I/O pin except RESET
Output high voltage
I/O pin except RESET
Power supply current
Power-down mode
Analog comparator
Input offset voltage
Analog comparator
Input leakage current
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 (2 mA at VCC = 1.8V) under steady state conditions (nontransient), the following must be observed: (1) The sum of all IOL, for all ports, should not exceed 50 mA. If IOL exceeds the test
condition, VOL may exceed the related specification. Pins are not guaranteed to sink current greater than the listed test
condition.
4. Although each I/O port can source more than the test conditions (0.5 mA at VCC = 1.8V) under steady state conditions
(nontransient), the following must be observed: (1) The sum of all IOL, for ports B0 to B5, should not exceed 50 mA. If IOL
exceeds the test condition, VOL may exceed the related specification. Pins are not guaranteed to sink current greater than
the listed test condition.
with respect to ground –0.5 to VCC + 0.5 V
24
30
CC
CC
CC
(1)
(1)
(1)
= 1.8V to 3.6V –0.5 +0.2V
V
CC
= 1.8V to 3.6V 0.7V
V
CC
(3)
,
(4)
,
= 2 mA, VCC = 1.8V 0.2 V
I
OL
= –2mA, VCC = 1.8V 1.2 V
I
OH
Active 4 MHz, V
Idle 4 MHz, V
WDT disabled, V
WDT enabled, V
= 3V 0.8 2.5 mA
CC
= 3V 0.2 0.5 mA
CC
= 3V
CC
= 3V
CC
VCC = 2.7V
= VCC/2
V
in
VCC = 2.7V
= VCC/2
V
in
CC
CC
CC
(2)
(2)
(2)
VCC + 0.5 V
VCC + 0.5 V
VCC + 0.5 V
0.2
4
<10 40 mV
–50 +50 nA
V
V
V
µA
2
ATtiny24V/ATtiny44V/ATtiny84V [Preliminary]
7819A–AVR–01/09
ATtiny24V/ATtiny44V/ATtiny84V [Preliminary]
4 MHz
8 MHz
1.8V 2.7V 3.6V
Safe Operating Area
1.3 Maximum Speed versus V
Maximum frequency is dependent on V
V
curve is linear between 1.8V < VCC < 3.6V.
CC
Figure 1-1. Maximum Frequency versus V
CC
As shown in Figure 1-1, the Maximum Frequency vs.
CC.
CC
1.4 Clock Characterizations
Table 1-1. Calibration Accuracy of Internal RC Oscillator
Frequency V
User Calibration 7.3 MHz to 8.1 MHz 1.8V to 3.6V –40°C to +85°C ±25%
CC
Temperature Accuracy
7819A–AVR–01/09
3
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