參數(shù)資料
型號(hào)： P87LPC764
廠商： NXP Semiconductors N.V.
英文描述： Low power, low price, low pin count(20 pin) microcontroller with4 kB OTP(帶4 kB OTP的低功耗，低價(jià)格，少引腳（20引腳）的微控制器)
中文描述： 低功耗，低價(jià)格，低引腳數(shù)（20針）微控制器with4 kB檢察官辦公室（帶4 KB的檢察官辦公室的低功耗，低價(jià)格，少引腳（20引腳）的微控制器）
文件頁數(shù)： 29/55頁
文件大?。?/td> 274K
代理商： P87LPC764
Philips Semiconductors
Preliminary specification
87LPC764
Low power, low price, low pin count (20 pin)
microcontroller with 4 kB OTP
2000 Jun 01
26
Low Voltage EPROM Operation
The EPROM array contains some analog circuits that are not
required when V
DD
is less than 4 V, but are required for a V
DD
greater than 4 V. The LPEP bit (AUXR.4), when set by software, will
power down these analog circuits resulting in a reduced supply
current. LPEP is cleared only by power-on reset, so it may be set
ONLY for applications that always operate with V
DD
less than 4 V.
Reset
The 87LPC764 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
SU01169
87LPC764
87LPC764
V
DD
8.2 k
10 F
RST
RST
2.2 F
Figure 20. 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 21. Block Diagram Showing Reset Sources
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
P87LPC764BD 制造商:PHILIPS-SEMI 功能描述:
P87LPC764BD,512 功能描述:8位微控制器 -MCU 80C51 4K/128 OTP 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
P87LPC764BD/01 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Low power, low price, low pin count (20 pin) microcontroller with 4 kbyte OTP
P87LPC764BD/01,529 功能描述:8位微控制器 -MCU 4K/128 OTP 2.7-6V LO PWR SO20 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
P87LPC764BD/CP3220 制造商:NXP Semiconductors 功能描述:- Rail/Tube
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