參數(shù)資料
型號： 87LPC769
廠商： NXP Semiconductors N.V.
英文描述： Low power, low price, low pin count(20 pin) microcontroller with 4 kB OTP and 8-bit A/D,and DAC(帶4 kB OTP、8位A/D和D/A轉(zhuǎn)換的低功耗，低價格，少引腳（20引腳）的微控制器)
中文描述： 低功耗，低價格，低引腳數(shù)（20針）與4 KB的檢察官辦公室和8位A / D，和DAC（帶4 KB的檢察官辦公室，8位微控制器的A / D和的D / A轉(zhuǎn)換的低功耗，低價格，少引腳（20引腳）的微控制器）
文件頁數(shù)： 34/61頁
文件大?。?/td> 275K
代理商： 87LPC769
Philips Semiconductors
Preliminary specification
87LPC769
Low power, low price, low pin count (20 pin)
microcontroller with 4 kB OTP 8-bit A/D, and DAC
2000 Apr 26
31
Table 9. Sources of Wakeup from Power Down Mode
Wakeup Source
Conditions
External Interrupt 0 or 1
The corresponding interrupt must be enabled.
Keyboard Interrupt
The keyboard interrupt feature must be enabled and properly set up. The corresponding interrupt must be
enabled.
Comparator 1 or 2
The comparator(s) must be enabled and properly set up. The corresponding interrupt must be enabled.
Watchdog Timer Reset
The watchdog timer must be enabled via the WDTE bit in the UCFG1 EPROM configuration byte.
Watchdog Timer Interrupt
The WDTE bit in the UCFG1 EPROM configuration byte must not be set. The corresponding interrupt must
be enabled.
Brownout Detect Reset
The BOD bit in AUXR1 must not be set (brownout detect not disabled). The BOI bit in AUXR1 must not be
set (brownout interrupt disabled).
Brownout Detect Interrupt
The BOD bit in AUXR1 must not be set (brownout detect not disabled). The BOI bit in AUXR1 must be set
(brownout interrupt enabled). The corresponding interrupt must be enabled.
Reset Input
The external reset input must be enabled.
A/D converter
Must use internal RC clock (RCCLK = 1) for A/D converter to work in Power Down mode. The A/D must be
enabled and properly set up. The corresponding interrupt must be enabled.
Some chip functions continue to operate and draw power during
Power Down mode, increasing the total power used during Power
Down. These include the Brownout Detect, Watchdog Timer,
Comparators, and the A/D Converter.
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