ATtiny25 Automotive Atmel Corporation, ATtiny25 Automotive Datasheet - Page 5
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ATtiny25 Automotive
Manufacturer Part Number
ATtiny25 Automotive
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT90CAN128_AUTOMOTIVE.pdf
(225 pages)
2.ATTINY25_AUTOMOTIVE.pdf
(7 pages)
3.ATTINY25_AUTOMOTIVE.pdf
(196 pages)
Specifications of ATtiny25 Automotive
Flash (kbytes)
2 Kbytes
Pin Count
8
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
4
Hardware Qtouch Acquisition
No
Max I/o Pins
6
Ext Interrupts
6
Usb Speed
No
Usb Interface
No
Spi
1
Twi (i2c)
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
4
Adc Resolution (bits)
10
Adc Speed (ksps)
15
Analog Comparators
1
Resistive Touch Screen
No
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
0.12
Eeprom (bytes)
128
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 125
I/o Supply Class
2.7 to 5.5
Operating Voltage (vcc)
2.7 to 5.5
Fpu
No
Mpu / Mmu
no / no
Timers
2
Output Compare Channels
5
Pwm Channels
6
32khz Rtc
No
Calibrated Rc Oscillator
Yes
- AT90CAN128_AUTOMOTIVE PDF datasheet
- ATTINY25_AUTOMOTIVE PDF datasheet #2
- ATTINY25_AUTOMOTIVE PDF datasheet #3
- Current page: 5 of 225
- Download datasheet (4Mb)
2.3
2.3.1
2.3.2
2.3.3
2.3.4
2.3.5
7701E–AVR–02/11
Pin Descriptions
VCC
GND
Port B (PB3...PB0)
RESET
Port A (PA7...PA0)
Supply voltage.
Ground.
Port B is a 4-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The
Port B output buffers have symmetrical drive characteristics with both high sink and source
capability except PB3, which has the RESET capability. To use pin PB3 as an I/O pin instead
of RESET pin, program (‘0’) RSTDISBL fuse. As inputs, Port B pins that are externally pulled
low will source current if the pull-up resistors are activated. The Port B pins are tri-stated when
a reset condition becomes active, even if the clock is not running.
Port B also serves the functions of various special features of the Atmel
listed on
Reset input. A low level on this pin for longer than the minimum pulse length will generate a
reset, even if the clock is not running. The minimum pulse length is given in
42. Shorter pulses are not guaranteed to generate a reset.
Port A is a 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The
Port A output buffers have symmetrical drive characteristics with both high sink and source
capability. As inputs, Port A pins that are externally pulled low will source current if the pull-up
resistors are activated. The Port A pins are tri-stated when a reset condition becomes active,
even if the clock is not running.
Port A has an alternate function as analog input for the ADC, analog comparator, timer/coun-
ter, SPI and pin change interrupt as described in
page
61.
Section 12.3 “Alternate Port Functions” on page
Atmel ATtiny24/44/84 [Preliminary]
Section 12.3 “Alternate Port Functions” on
61.
®
ATtiny24/44/84 as
Table 9-1 on page
5
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