參數(shù)資料
型號： P89CV51RB2FBC,557
廠商： NXP Semiconductors
文件頁數(shù)： 22/76頁
文件大?。?/td> 0K
描述： IC 80C51 MCU FLASH 16K 44-TQFP
產品培訓模塊： Migrating from 8/16-Bit MCUs to 32-Bit ARMs
標準包裝： 800
系列： 89C
核心處理器： 8051
芯體尺寸： 8-位
速度： 40MHz
連通性： EBI/EMI，SPI，UART/USART
外圍設備： POR，PWM，WDT
輸入/輸出數(shù)： 32
程序存儲器容量： 16KB（16K x 8）
程序存儲器類型： 閃存
RAM 容量： 1K x 8
電壓 - 電源 (Vcc/Vdd)： 4.5 V ~ 5.5 V
振蕩器型： 內部
工作溫度： -40°C ~ 85°C
封裝/外殼： 44-TQFP
包裝： 托盤
其它名稱： 568-4253
935284179557
P89CV51RB2FBC
P89CV51RB2_RC2_RD2_3
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 03 — 25 August 2009
29 of 76
NXP Semiconductors
P89CV51RB2/RC2/RD2
80C51 with 1 kB RAM, SPI
6.4.2 Mode 1
Mode 1 is the same as Mode 0, except that all 16 bits of the timer register (THn and TLn)
are used; see Figure 8.
6.4.3 Mode 2
Mode 2 congures the timer register as an 8-bit counter (TLn) with automatic reload, as
shown in Figure 9. Overow from TLn not only sets TFn, but also reloads TLn with the
contents of THn, which must be preset by software. The reload leaves THn unchanged.
Mode 2 operation is the same for Timer 0 and Timer 1.
6.4.4 Mode 3
When Timer 1 is in Mode 3 it is stopped (holds its count). The effect is the same as setting
TR1=0.
Timer 0 in Mode 3 establishes TL0 and TH0 as two separate 8-bit counters. The logic for
Mode 3 and Timer 0 is shown in Figure 10. TL0 uses the Timer 0 control bits: T0C/T,
T0GATE, TR0, INT0, and TF0. TH0 is locked into a timer function (counting machine
cycles) and takes over the use of TR1 and TF1 from Timer 1. Thus, TH0 now controls the
Timer 1 interrupt.
Mode 3 is provided for applications that require an extra 8-bit timer. With Timer 0 in
mode 3, the P89CV51RB2/RC2/RD2 can look like it has an additional timer.
Note: When Timer 0 is in Mode 3, Timer 1 can be turned on and off by switching it into
and out of its own Mode 3. It can still be used by the serial port as a baud rate generator,
or in any application not requiring an interrupt.
Fig 8.
Timer/counter 0 or 1 in Mode 1 (16-bit counter)
002aaa520
osc/6
Tn pin
TRn
TnGate
INTn pin
C/T = 0
C/T = 1
TLn
(8-bits)
THn
(8-bits)
TFn
control
overflow
interrupt
Fig 9.
Timer/counter 0 or 1 in Mode 2 (8-bit auto-reload)
002aaa521
osc/6
Tn pin
TRn
TnGate
INTn pin
TLn
(8-bits)
THn
(8-bits)
TFn
control
overflow
reload
interrupt
C/T = 0
C/T = 1
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相關代理商/技術參數(shù)
參數(shù)描述
P89CV51RC2 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit 80C51 5 V low power 64 kB flash microcontroller with 1 kB RAM, SPI, 6-clock CPU with 6/12-clock peripherals
P89CV51RC2FA 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit 80C51 5 V low power 64 kB flash microcontroller with 1 kB RAM, SPI, 6-clock CPU with 6/12-clock peripherals
P89CV51RC2FA,512 功能描述:8位微控制器 -MCU 80C51 32K FL / 512 R RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據 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 安裝風格:SMD/SMT
P89CV51RC2FA512 制造商:Rochester Electronics LLC 功能描述: 制造商:NXP 功能描述: 制造商:NXP Semiconductors 功能描述:
P89CV51RC2FBC 功能描述:8位微控制器 -MCU 80C51 32K FL / 512 R RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據 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 安裝風格:SMD/SMT
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