參數(shù)資料
型號(hào)： P89LPC954FBD44,151
廠商： NXP Semiconductors
文件頁數(shù)： 26/69頁
文件大小： 0K
描述： IC 80C51 MCU FLASH 16K 44LQFP
標(biāo)準(zhǔn)包裝： 160
系列： LPC900
核心處理器： 8051
芯體尺寸： 8-位
速度： 18MHz
連通性： I²C，SPI，UART/USART
外圍設(shè)備： 欠壓檢測/復(fù)位，POR，PWM，WDT
輸入/輸出數(shù)： 40
程序存儲(chǔ)器容量： 16KB（16K x 8）
程序存儲(chǔ)器類型： 閃存
RAM 容量： 512 x 8
電壓 - 電源 (Vcc/Vdd)： 2.4 V ~ 3.6 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 8x10b
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 85°C
封裝/外殼： 44-LQFP
包裝： 托盤
配用： 568-1759-ND - EMULATOR DEBUGGER/PROGRMMR LPC9X
其它名稱： 568-7917
568-7917-ND
568-8269
935284303151
P89LPC954FBD44,151-ND
P89LPC954FBD44-S
P89LPC954FBD44-S-ND
P89LPC952_954_4
NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 04 — 24 July 2008
32 of 69
NXP Semiconductors
P89LPC952/954
8-bit microcontroller with 10-bit ADC
7.16 Reset
The P1.5/RST pin can function as either a digital input (P1.5), an active-LOW reset input
with an internal pull-up, a bidirectional reset input/output (open drain output with an
internal pull-up), or as push-pull reset output. These modes are selected by the RPE
(Reset Pin Enable) bit in UCFG1 and the RPE1 (Reset Pin Enable 1) bit in UCFG2.
Remark: During a power-up sequence, the RPE and RPE1 selection is overridden and
this pin always functions as a reset input. An external circuit connected to this pin
should not hold this pin LOW during a power-on sequence as this will keep the
device in reset. After power-up this pin will function as dened by the RPE and RPE1
bits. Only a power-up reset will temporarily override the selection dened by RPE and
RPE1 bits. Other sources of reset will not override the RPE and RPE1 bits.
Remark: During a power cycle, VDD must fall below VPOR before power is reapplied, in
order to ensure a power-on reset (see Table 11 “Static characteristics” on page 51).
Remark: When using an oscillator frequency above 12 MHz, the reset input function of
P1.5 must be enabled. An external circuit is required to hold the device in reset at
power-up until VDD has reached its specied level. When system power is removed VDD
will fall below the minimum specied operating voltage. When using an oscillator
frequency above 12 MHz, in some applications, an external brownout detect circuit may
be required to hold the device in reset when VDD falls below the minimum specied
operating voltage.
Reset can be triggered from the following sources:
External reset pin (during power-up or if user congured via UCFG1, UCGF2);
Power-on detect;
Brownout detect;
Watchdog timer;
Software reset;
UART break character detect reset.
For every reset source, there is a ag in the Reset Register, RSTSRC. The user can read
this register to determine the most recent reset source. These ag bits can be cleared in
software by writing a ‘0’ to the corresponding bit. More than one ag bit may be set:
During a power-on reset, both POF and BOF are set but the other ag bits are
cleared.
For any other reset, previously set ag bits that have not been cleared will remain set.
Table 8.
Reset pin modes
P1.5/RST mode
RPE1 (UCFG2.0) RPE (UCFG1.6)
General purpose input
0
Reset input with pull-up
0
1
Bidirectional reset input/output (open drain with pull-up)
1
0
Reset output
1
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P89LPC954FBD44-S 功能描述:8位微控制器 -MCU 16K FL/1K RAM/512B EE/10B ADC 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
P89LPC954FBD48 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontroller with accelerated two-clock 80C51 core 8 kB/16 kB 3 V byte-erasable flash with 10-bit ADC
P89LPC954FBD48,151 功能描述:8位微控制器 -MCU 8B MCU 2-CLOCK 80C51 8/16KB 3V 10B 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
P89LPC970 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontroller with accelerated two-clock 80C51 core 2 kB/4 kB/8 kB wide-voltage byte-erasable flash
P89LPC970FDH 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontroller with accelerated two-clock 80C51 core 2 kB/4 kB/8 kB wide-voltage byte-erasable flash
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