参数资料
| 型号： | ATMEGA3250-16AI |
| 厂商： | Atmel |
| 文件页数： | 13/29页 |
| 文件大小： | 0K |
| 描述： | IC AVR MCU 32K 16MHZ 100TQFP |
| 产品培训模块： | megaAVR Introduction |
| 标准包装： | 90 |
| 系列： | AVR® ATmega |
| 核心处理器： | AVR |
| 芯体尺寸： | 8-位 |
| 速度： | 16MHz |
| 连通性： | SPI，UART/USART，USI |
| 外围设备： | 欠压检测/复位，POR，PWM，WDT |
| 输入/输出数： | 69 |
| 程序存储器容量： | 32KB（16K x 16） |
| 程序存储器类型： | 闪存 |
| EEPROM 大小： | 1K x 8 |
| RAM 容量： | 2K x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 2.7 V ~ 5.5 V |
| 数据转换器： | A/D 8x10b |
| 振荡器型： | 内部 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 100-TQFP |
| 包装： | 托盘 |
| 配用： | ATSTK600-TQFP100-ND - STK600 SOCKET/ADAPTER 100-TQFP ATSTK504-ND - STARTER KIT AVR EXP MOD 100P LCD |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页当前第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页
PCA9698
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 3 — 3 August 2010
20 of 48
NXP Semiconductors
PCA9698
40-bit Fm+ I2C-bus advanced I/O port with RESET, OE and INT
7.12 Output enable input (OE)
The configurable active LOW or active HIGH output enable pin allows to enable or disable
all the I/Os at the same time.
When a LOW level is applied to the OE pin, with OEPOL = 0 (register 2Ah, bit 4) or a
HIGH level is applied to the OE pin, with OEPOL = 1 (register 2Ah, bit 0), all the I/Os
configured as outputs are enabled and the logic value programmed in their respective
OP registers is applied to the pins.
When a HIGH level is applied to the OE pin, with OEPOL = 0 (register 2Ah, bit 0) or a
LOW level is applied to the OE pin, with OEPOL = 1 (register 2Ah, bit 0), all the I/Os
configured as outputs are 3-stated.
For applications requiring LED blinking with brightness control, this pin can be used to
control the brightness by applying a high frequency PWM signal on the OE pin. LEDs can
be blinked using the Output Port registers and can be dimmed using the PWM signal on
the OE pin thus controlling the brightness by adjusting the duty cycle.
Default is OEPOL = 0, so if the OE pin is held HIGH, the outputs are disabled. The OE pin
needs to be pulled LOW or OEPOL changed to ‘1’ to enable the outputs.
It is recommended to define the required polarity of the OE input by programing the value
of OEPOL before programming the configuration registers (IOC register).
7.13 Live insertion
The PCA9698 is fully specified for live-insertion applications using IOFF, power-up
3-states, robust state machine, and 50 ns noise filter. The IOFF circuitry disables the
outputs, preventing damaging current backflow through the device when it is powered
down. The power-up 3-states circuitry places the outputs in the high-impedance state
during power-up and power-down, which prevents driver conflict and bus contention.
The robust state machine does not respond until it sees a valid START condition and the
50 ns noise filter will filter out any insertion glitches. The PCA9698 will not cause
corruption of active data on the bus nor will the device be damaged or cause damage to
devices already on the bus when similar featured devices are being used.
7.14 Standby
The PCA9698 goes into standby when the I2C-bus is idle. Standby supply current is lower
than 1.0
μA (typical).
相关PDF资料 |
PDF描述 |
|---|---|
| PIC18F4420-I/ML | IC MCU FLASH 8KX16 44QFN |
| DSPIC30F3014-20I/PT | IC DSPIC MCU/DSP 24K 44TQFP |
| ATMEGA325V-8MI | IC AVR MCU 32K 8MHZ 64-QFN |
| PIC16F74-I/P | IC MCU FLASH 4KX14 A/D 40DIP |
| ATMEGA165-16AI | IC AVR MCU 16K 16MHZ 64TQFP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ATMEGA3250-16AJ | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:8-bit Microcontroller with In-System Programmable Flash |
| ATmega3250-16AU | 功能描述:8位微控制器 -MCU AVR 32K FLASH 1K EE 2K SRAM ADC 5V 5V RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| ATMEGA3250-16AUR | 功能描述:8位微控制器 -MCU AVR 32K FLSH 1K EE2K SRAM ADC 5V-16MHZ 5V RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| ATMEGA3250A | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:8-bit Microcontroller with 16/32/64K Bytes In-System Programmable Flash |
| ATMEGA3250A-AN | 功能描述:8位微控制器 -MCU AVR 32K FL 2K SRAM 1KB EE 20 MHZ GRN RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
发布紧急采购，3分钟左右您将得到回复。