參數(shù)資料
型號: P87LPC769HD512
廠商: NXP Semiconductors N.V.
元件分類: 8位微控制器
英文描述: IC-SM-8-BIT MCU
中文描述: 集成電路釤8位微控制器
文件頁數(shù): 35/61頁
文件大?。?/td> 306K
代理商: P87LPC769HD512
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
2001 Jan 11
32
Reset
The 87LPC769 has an active low reset input when configured for an
external reset. A fully internal reset may also be configured which
provides a reset when power is initially applied to the device. The
watchdog timer can act as an oscillator fail detect because it uses
an independent, fully on-chip oscillator.
The external reset input is disabled, and fully internal reset
generation enabled, by programming the RPD bit in the EPROM
configuration register UCFG1 to 0. EPROM configuration is
described in the section EPROM Characteristics
SU01384
87LPC769
87LPC769
V
DD
8.2 k
10 F
RST
RST
2.2 F
Figure 23. Typical External Reset Circuits
SU01170
CHIP RESET
CPU
CLOCK
Q
RESET
TIMING
RPD (UCFG1.6)
WDT
MODULE
SOFTWARE RESET
SRST (AUXR1.3)
POWER MONITOR
RESET
RST/V
PP
PIN
WDTE (UCFG1.7)
S
R
Figure 24. Block Diagram Showing Reset Sources
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