ATTINY84V-10PU Atmel, ATTINY84V-10PU Datasheet - Page 77
ATTINY84V-10PU
Manufacturer Part Number
ATTINY84V-10PU
Description
AVR MCU, 8K FLASH, 512B RAM, 512B EE
Manufacturer
Atmel
Datasheet
1.ATTINY84V-10PU.pdf
(233 pages)
Specifications of ATTINY84V-10PU
Controller Family/series
AVR Tiny
No. Of I/o's
12
Eeprom Memory Size
512Byte
Ram Memory Size
1KB
Cpu Speed
10MHz
Core Size
8bit
Program Memory Size
8KB
Oscillator Type
External, Internal
Processor Series
ATTINY8x
Core
AVR8
Data Bus Width
8 bit
Program Memory Type
Flash
Data Ram Size
512 B
Interface Type
SPI
Maximum Clock Frequency
10 MHz
Number Of Programmable I/os
12
Number Of Timers
2
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
Package / Case
PDIP-14
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 8 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATTINY84V-10PU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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13.6
8006F–AVR–02/07
Compare Match Output Unit
generation. Similarly, do not write the TCNT0 value equal to BOTTOM when the counter is
down-counting.
The setup of the OC0x should be performed before setting the Data Direction Register for the
port pin to output. The easiest way of setting the OC0x value is to use the Force Output Com-
pare (0x) strobe bits in Normal mode. The OC0x Registers keep their values even when
changing between Waveform Generation modes.
Be aware that the COM0x1:0 bits are not double buffered together with the compare value.
Changing the COM0x1:0 bits will take effect immediately.
The Compare Output mode (COM0x1:0) bits have two functions. The Waveform Generator uses
the COM0x1:0 bits for defining the Output Compare (OC0x) state at the next Compare Match.
Also, the COM0x1:0 bits control the OC0x pin output source.
simplified schematic of the logic affected by the COM0x1:0 bit setting. The I/O Registers, I/O
bits, and I/O pins in the figure are shown in bold. Only the parts of the general I/O Port Control
Registers (DDR and PORT) that are affected by the COM0x1:0 bits are shown. When referring
to the OC0x state, the reference is for the internal OC0x Register, not the OC0x pin. If a system
reset occur, the OC0x Register is reset to “0”.
Figure 13-4. Compare Match Output Unit, Schematic
The general I/O port function is overridden by the Output Compare (OC0x) from the Waveform
Generator if either of the COM0x1:0 bits are set. However, the OC0x pin direction (input or out-
put) is still controlled by the Data Direction Register (DDR) for the port pin. The Data Direction
Register bit for the OC0x pin (DDR_OC0x) must be set as output before the OC0x value is visi-
ble on the pin. The port override function is independent of the Waveform Generation mode.
The design of the Output Compare pin logic allows initialization of the OC0x state before the out-
put is enabled. Note that some COM0x1:0 bit settings are reserved for certain modes of
operation, see
COMnx1
COMnx0
FOCn
clk
”Register Description” on page 84
I/O
Waveform
Generator
D
D
D
PORT
DDR
OCnx
Q
Q
Q
1
0
Figure 13-4 on page 77
ATtiny24/44/84
OCn
Pin
shows a
77
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