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ATMEGA48V-10MU
ATMEGA48V-10MU | |
---|---|
Manufacturer Part Number | ATMEGA48V-10MU |
Description | IC AVR MCU 4K 10MHZ 1.8V 32-QFN |
Manufacturer | Atmel |
Series | AVR® ATmega |
ATMEGA48V-10MU datasheets |
|
Specifications of ATMEGA48V-10MU | |||
---|---|---|---|
Core Processor | AVR | Core Size | 8-Bit |
Speed | 10MHz | Connectivity | I²C, SPI, UART/USART |
Peripherals | Brown-out Detect/Reset, POR, PWM, WDT | Number Of I /o | 23 |
Program Memory Size | 4KB (2K x 16) | Program Memory Type | FLASH |
Eeprom Size | 256 x 8 | Ram Size | 512 x 8 |
Voltage - Supply (vcc/vdd) | 1.8 V ~ 5.5 V | Data Converters | A/D 8x10b |
Oscillator Type | Internal | Operating Temperature | -40°C ~ 85°C |
Package / Case | 32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN | Package | 32MLF EP |
Device Core | AVR | Family Name | ATmega |
Maximum Speed | 10 MHz | Operating Supply Voltage | 2.5|3.3|5 V |
Data Bus Width | 8 Bit | Number Of Programmable I/os | 23 |
Interface Type | SPI/TWI/USART | On-chip Adc | 8-chx10-bit |
Number Of Timers | 3 | Processor Series | ATMEGA48x |
Core | AVR8 | Data Ram Size | 512 B |
Maximum Clock Frequency | 10 MHz | Maximum Operating Temperature | + 85 C |
Mounting Style | SMD/SMT | 3rd Party Development Tools | EWAVR, EWAVR-BL |
Minimum Operating Temperature | - 40 C | Controller Family/series | AVR MEGA |
No. Of I/o's | 23 | Eeprom Memory Size | 256Byte |
Ram Memory Size | 512Byte | Cpu Speed | 10MHz |
No. Of Timers | 3 | Rohs Compliant | Yes |
For Use With | ATSTK600-TQFP32 - STK600 SOCKET/ADAPTER 32-TQFPATSTK600-DIP40 - STK600 SOCKET/ADAPTER 40-PDIP770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATAVRDRAGON - KIT DRAGON 32KB FLASH MEM AVRATAVRISP2 - PROGRAMMER AVR IN SYSTEMATJTAGICE2 - AVR ON-CHIP D-BUG SYSTEM | Lead Free Status / RoHS Status | Lead free / RoHS Compliant |
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15.8
Compare Match Output Unit
The Compare Output mode (COM1x1:0) bits have two functions. The Waveform Generator uses
the COM1x1:0 bits for defining the Output Compare (OC1x) state at the next compare match.
Secondly the COM1x1:0 bits control the OC1x pin output source.
schematic of the logic affected by the COM1x1:0 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 COM1x1:0 bits are shown. When referring to the
OC1x state, the reference is for the internal OC1x Register, not the OC1x pin. If a system reset
occur, the OC1x Register is reset to “0”.
Figure 15-5. Compare Match Output Unit, Schematic
COMnx1
COMnx0
FOCnx
clk
The general I/O port function is overridden by the Output Compare (OC1x) from the Waveform
Generator if either of the COM1x1:0 bits are set. However, the OC1x 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 OC1x pin (DDR_OC1x) must be set as output before the OC1x value is visi-
ble on the pin. The port override function is generally independent of the Waveform Generation
mode, but there are some exceptions. Refer to
details.
The design of the Output Compare pin logic allows initialization of the OC1x state before the out-
put is enabled. Note that some COM1x1:0 bit settings are reserved for certain modes of
operation.
The COM1x1:0 bits have no effect on the Input Capture unit.
15.8.1
Compare Output Mode and Waveform Generation
The Waveform Generator uses the COM1x1:0 bits differently in normal, CTC, and PWM modes.
For all modes, setting the COM1x1:0 = 0 tells the Waveform Generator that no action on the
OC1x Register is to be performed on the next compare match. For compare output actions in the
ATmega48/88/168
118
Waveform
D
Generator
D
PORT
D
I/O
See “Register Description” on page 129.
Figure 15-5
shows a simplified
Q
1
OCnx
0
Q
Q
DDR
Table
15-1,
Table 15-2
and
OCnx
Pin
Table 15-3
for
2545S–AVR–07/10
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