- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄1959 > P89LPC954FBD44,151 (NXP Semiconductors)IC 80C51 MCU FLASH 16K 44LQFP PDF資料下載
參數(shù)資料
| 型號(hào)： | P89LPC954FBD44,151 |
| 廠商： | NXP Semiconductors |
| 文件頁(yè)數(shù)： | 28/69頁(yè) |
| 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(cè)/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 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)當(dāng)前第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)
P89LPC952_954_4
NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 04 — 24 July 2008
34 of 69
NXP Semiconductors
P89LPC952/954
8-bit microcontroller with 10-bit ADC
7.17.6 Timer overow toggle output
Timers 0 and 1 can be congured to automatically toggle a port output whenever a timer
overow occurs. The same device pins that are used for the T0 and T1 count inputs are
also used for the timer toggle outputs. The port outputs will be a logic 1 prior to the rst
timer overow when this mode is turned on.
7.18 RTC/system timer
The P89LPC952/954 has a simple RTC that allows a user to continue running an accurate
timer while the rest of the device is powered down. The RTC can be a wake-up or an
interrupt source. The RTC is a 23-bit down counter comprised of a 7-bit prescaler and a
16-bit loadable down counter. When it reaches all ‘0’s, the counter will be reloaded again
and the RTCF ag will be set. The clock source for this counter can be either the CPU
clock (CCLK) or the XTAL oscillator, provided that the XTAL oscillator is not being used as
the CPU clock. If the XTAL oscillator is used as the CPU clock, then the RTC will use
CCLK as its clock source. Only power-on reset will reset the RTC and its associated SFRs
to the default state.
7.19 UARTs
The P89LPC952/954 has two enhanced UARTs that are compatible with the conventional
80C51 UART except that Timer 2 overow cannot be used as a baud rate source. The
P89LPC952/954 does include an independent Baud Rate Generator for each UART
(BRG0 for UART 0 and BRG1 for UART 1). The baud rate can be selected from the
oscillator (divided by a constant), Timer 1 overow, or the independent Baud Rate
Generator associated with the specic UART. In addition to the baud rate generation,
enhancements over the standard 80C51 UART include Framing Error detection,
automatic address recognition, selectable double buffering and several interrupt options.
The UARTs can be operated in 4 modes: shift register, 8-bit UART, 9-bit UART, and CPU
clock/32 or CPU clock/16.
7.19.1 Mode 0
Serial data enters and exits through RXDn. TXDn outputs the shift clock. 8 bits are
transmitted or received, LSB rst. The baud rate is xed at 1
16 of the CPU clock
frequency.
7.19.2 Mode 1
10 bits are transmitted (through TXDn) or received (through RXDn): a start bit (logic 0),
8 data bits (LSB rst), and a stop bit (logic 1). When data is received, the stop bit is stored
in RB8_n in Special Function Register SnCON. The baud rate is variable and is
determined by the Timer 1 overow rate or the Baud Rate Generator (described in Section
7.19.3 Mode 2
11 bits are transmitted (through TXDn) or received (through RXDn): start bit (logic 0),
8 data bits (LSB rst), a programmable 9th data bit, and a stop bit (logic 1). When data is
transmitted, the 9th data bit (TB8_n in SnCON) can be assigned the value of ‘0’ or ‘1’. Or,
for example, the parity bit (P, in the PSW) could be moved into TB8_n. When data is
received, the 9th data bit goes into RB8_n in Special Function Register SnCON, while the
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| P89LPC972FN,129 | MCU 80C51 8KB FLASH 20DIP |
| P89LPC985FDH,529 | IC 80C51 MCU KB FLASH 28TSSOP |
| P89V51RC2FA,512 | IC 80C51 MCU FLASH 32K 44-PLCC |
| P89V52X2FN,112 | IC 80C51 MCU FLASH 8K 40-DIP |
| P89V662FA,512 | IC 80C51 MCU FLASH 32K 44-PLCC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。