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參數(shù)資料
| 型號(hào)： | ATTINY861A-XUR |
| 廠商： | Atmel |
| 文件頁(yè)數(shù)： | 285/296頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | MCU AVR 8KB FLASH 20MHZ 20TSSOP |
| 產(chǎn)品培訓(xùn)模塊： | tinyAVR Introduction |
| 標(biāo)準(zhǔn)包裝： | 4,000 |
| 系列： | AVR® ATtiny |
| 核心處理器： | AVR |
| 芯體尺寸： | 8-位 |
| 速度： | 20MHz |
| 連通性： | USI |
| 外圍設(shè)備： | 欠壓檢測(cè)/復(fù)位，POR，PWM，溫度傳感器，WDT |
| 輸入/輸出數(shù)： | 16 |
| 程序存儲(chǔ)器容量： | 8KB（4K x 16） |
| 程序存儲(chǔ)器類型： | 閃存 |
| EEPROM 大?。?/td> | 512 x 8 |
| RAM 容量： | 512 x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 1.8 V ~ 5.5 V |
| 數(shù)據(jù)轉(zhuǎn)換器： | A/D 11x10b |
| 振蕩器型： | 內(nèi)部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 20-TSSOP（0.173"，4.40mm 寬） |
| 包裝： | 帶卷 (TR) |
| 其它名稱： | ATTINY861A-XUR-ND ATTINY861A-XURTR |
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89
8197C–AVR–05/11
ATtiny261A/461A/861A
For actual placement of the I/O pins, refer to “Pinout ATtiny261A/461A/861A” on page 2. The
device-specific I/O register and bit locations are listed in the “Register Description” on page 111.
12.2.1
Speed
The maximum speed of the Timer/Counter1 is 64 MHz. However, if a supply voltage below 2.7
volts is used, it is recommended to use the Low Speed Mode (LSM), because the
Timer/Counter1 is not running fast enough on low voltage levels. In the Low Speed Mode the
fast peripheral clock is scaled down to 32 MHz. For more details about the Low Speed Mode,
12.2.2
Accuracy
The Timer/Counter1 is a 10-bit Timer/Counter module that can alternatively be used as an 8-bit
Timer/Counter. The Timer/Counter1 registers are basically 8-bit registers, but on top of that
there is a 2-bit High Byte Register (TC1H) that can be used as a common temporary buffer to
access the two MSBs of the 10-bit Timer/Counter1 registers by the AVR CPU via the 8-bit data
bus, if the 10-bit accuracy is used. Whereas, if the two MSBs of the 10-bit registers are written to
zero the Timer/Counter1 is working as an 8-bit Timer/Counter. When reading the low byte of any
8-bit register the two MSBs are written to the TC1H register, and when writing the low byte of
any 8-bit register the two MSBs are written from the TC1H register. Special procedures must be
followed when accessing the 10-bit Timer/Counter1 values via the 8-bit data bus. These proce-
dures are described in the section “Accessing 10-Bit Registers” on page 107.
12.2.3
Registers
The Timer/Counter (TCNT1) and Output Compare Registers (OCR1A, OCR1B, OCR1C and
OCR1D) are 8-bit registers that are used as a data source to be compared with the TCNT1 con-
tents. The OCR1A, OCR1B and OCR1D registers determine the action on the OC1A, OC1B and
OC1D pins and they can also generate the compare match interrupts. The OCR1C holds the
Timer/Counter TOP value, i.e. the clear on compare match value. The Timer/Counter1 High
Byte Register (TC1H) is a 2-bit register that is used as a common temporary buffer to access the
MSB bits of the Timer/Counter1 registers, if the 10-bit accuracy is used.
Interrupt request (overflow TOV1, and compare matches OCF1A, OCF1B, OCF1D and fault pro-
tection FPF1) signals are visible in the Timer Interrupt Flag Register (TIFR) and Timer/Counter1
Control Register D (TCCR1D). The interrupts are individually masked with the Timer Interrupt
Mask Register (TIMSK) and the FPIE1 bit in the Timer/Counter1 Control Register D (TCCR1D).
Control signals are found in the Timer/Counter Control Registers TCCR1A, TCCR1B, TCCR1C,
TCCR1D and TCCR1E.
12.2.4
Synchronization
In asynchronous clocking mode the Timer/Counter1 and the prescaler allow running the CPU
from any clock source while the prescaler is operating on the fast peripheral clock (PCK) having
frequency of 64 MHz (or 32 MHz in Low Speed Mode). This is possible because there is a syn-
chronization boundary between the CPU clock domain and the fast peripheral clock domain.
Figure 12-2 shows Timer/Counter 1 synchronization register block diagram and describes syn-
chronization delays in between registers. Note that all clock gating details are not shown in the
figure.
The Timer/Counter1 register values go through the internal synchronization registers, which
cause the input synchronization delay, before affecting the counter operation. The registers
TCCR1A, TCCR1B, TCCR1C, TCCR1D, OCR1A, OCR1B, OCR1C and OCR1D can be read
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 66335-2 | DUO-TYNE FLAG STRIP CONT |
| 5-583294-2 | CONT AMP LEAF L/P 15 AU |
| 5-583616-4 | TWIN LF CONT IS 24-28 AU |
| 583616-5 | CONN CONTACT 28-24AWG CRIMP GOLD |
| 583853-5 | CONN CONTACT 24-20AWG 30GOLD |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ATTINY861-ESMZ | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash |
| ATTINY861-ESSZ | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash |
| ATTINY861-ESXZ | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash |
| ATTINY861V | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash |
| ATTINY861V-10MU | 功能描述:8位微控制器 -MCU AVR 8K FLASH 512B EE 512B SRAM ADC RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
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