參數(shù)資料
型號： AT43USB325E-AU
廠商： ATMEL CORP
元件分類： 微控制器/微處理器
英文描述： Multimedia USB Keyboard Controller with Embedded Hub
中文描述： 8-BIT, 12 MHz, RISC MICROCONTROLLER, PQFP64
封裝： 1.40 MM HEIGHT, GREEN, PLASTIC, MS-026ACB, LQFP-64
文件頁數(shù)： 25/109頁
文件大小： 643K
代理商： AT43USB325E-AU
25
3355C–USB–4/05
AT43USB325
4.7
External Reset
An external reset is generated by a low-level on the RESET pin. Reset pulses longer than
200 ns will generate a reset. Shorter pulses are not guaranteed to generate a reset. When the
applied signal reaches the Reset Threshold Voltage - V
RST
on its positive edge, the delay timer
starts the MCU after the Time-out period t
TOUT
has expired.
Figure 4-4.
External Reset During Operation
4.8
Watchdog Timer Reset
When the watchdog times out, it will generate a short reset pulse of 1 XTAL cycle duration. On
the falling edge of this pulse, the delay timer starts counting the Time-out period t
TOUT
.
Figure 4-5.
Watchdog Reset During Operation
t
TOUT
V
RST
VCC
RESET
TIME-OUT
INTERNAL
RESET
t
TOUT
VCC
RESET
WDT
TIME-OUT
RESET
TIME-OUT
1 XTAL Cycle
INTERNAL
RESET
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AT43USB326 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Missed Watchdog Timer Reset
AT43USB326_06 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Multimedia USB Keyboard Controller with Embedded Hub
AT43USB326-AC 功能描述:USB 接口集成電路 USB KEYBOARD F/LOGI- TECH - COM TEMP RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20
AT43USB326-AU 功能描述:USB 接口集成電路 USB KEYBOARD FOR LOGITECH - IND TEMP RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20
AT43USB351M 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Missed Watchdog Timer Reset
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