ATtiny167 Automotive Atmel Corporation, ATtiny167 Automotive Datasheet - Page 88

• Manufacturer Part Number: ATtiny167 Automotive
• Manufacturer: Atmel Corporation

Specifications of ATtiny167 Automotive

• Flash (kbytes): 16 Kbytes
• Pin Count: 20
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 8
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 16
• Ext Interrupts: 16
• Usb Speed: No
• Usb Interface: No
• Spi: 2
• Twi (i2c): 1
• Uart: 1
• Lin: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 11
• 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): 512
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 150
• 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: 3
• Input Capture Channels: 1
• Pwm Channels: 9
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

88
ATtiny87/ATtiny167
Figure 10-1. 8-bit Timer/Counter0 Block Diagram
The Timer/Counter (TCNT0) and Output Compare Register (OCR0A) are 8-bit registers. Inter-
rupt request (shorten as Int.Req.) signals are all visible in the Timer Interrupt Flag Register
(TIFR0). All interrupts are individually masked with the Timer Interrupt Mask Register
(TIMSK0). TIFR0 and TIMSK0 are not shown in the figure.
The Timer/Counter can be clocked internally, via the prescaler, or asynchronously clocked
from the XTAL1/2 pins, as detailed later in this section. The asynchronous operation is con-
trolled by the Asynchronous Status Register (ASSR). The Clock Select logic block controls
which clock source the Timer/Counter uses to increment (or decrement) its value. The
Timer/Counter is inactive when no clock source is selected. The output from the Clock Select
logic is referred to as the timer clock (clk
The double buffered Output Compare Register (OCR0A) is compared with the Timer/Counter
value at all times. The result of the compare can be used by the Waveform Generator to gen-
erate a PWM or variable frequency output on the Output Compare pin (OC0A).
Compare Unit” on page 90.
flag (OCF0A) which can be used to generate an Output Compare interrupt request.
Status flags
Timer/Counter
TCNTn
OCRnx
=
ASSRn
direction
count
clear
for details. The compare match event will also set the compare
BOTTOM
Synchronized Status flags
= 0
Control Logic
=
TCCRnx
T
TOP
asynchronous mode
0xFF
0).
select (ASn)
clk
Tn
Synchronization Unit
Prescaler
OCnx
(Int.Req.)
Generation
Waveform
Oscillator
OCnx
clk
7728G–AVR–06/10
TOVn
(Int.Req.)
clk
clk
See ”Output
ASY
I/O
I/O
XTAL1
XTAL2