ATtiny88 Automotive Atmel Corporation, ATtiny88 Automotive Datasheet - Page 49
![no-image](/images/manufacturer_photos/0/0/79/atmel_corporation_sml.jpg)
ATtiny88 Automotive
Manufacturer Part Number
ATtiny88 Automotive
Description
Manufacturer
Atmel Corporation
Specifications of ATtiny88 Automotive
Flash (kbytes)
8 Kbytes
Pin Count
32
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
12
Hardware Qtouch Acquisition
No
Max I/o Pins
28
Ext Interrupts
28
Usb Speed
No
Usb Interface
No
Spi
1
Twi (i2c)
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
15
Analog Comparators
1
Resistive Touch Screen
No
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
0.5
Eeprom (bytes)
64
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
Yes
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
4
Input Capture Channels
1
Pwm Channels
2
32khz Rtc
No
Calibrated Rc Oscillator
Yes
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7701E–AVR–02/11
The following code example shows one assembly function and one C function for turning off
the WDT. The example assumes that interrupts are controlled (e.g., by disabling interrupts
globally) so that no interrupts will occur during execution of these functions.
Note:
Assembly Code Example
C Code Example
WDT_off:
WDR
void WDT_off(void)
{
}
; Clear WDRF in MCUSR
ldi
out
; Write logical one to WDCE and WDE
; Keep old prescaler setting to prevent unintentional Watchdog Reset
in
ori r16, (1<<WDCE)|(1<<WDE)
out WDTCR, r16
; Turn off WDT
ldi r16, (0<<WDE)
out WDTCR, r16
ret
_WDR();
/* Clear WDRF in MCUSR */
MCUSR = 0x00
/* Write logical one to WDCE and WDE */
WDTCR |= (1<<WDCE) | (1<<WDE);
/* Turn off WDT */
WDTCR = 0x00;
1. See
r16, WDTCR
r16, (0<<WDRF)
MCUSR, r16
“About Code Examples” on page
(1)
(1)
Atmel ATtiny24/44/84 [Preliminary]
6.
49
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