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| 型號： | P89LPC9351FDH |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-bit microcontroller with accelerated two-clock 80C51 core, 4 kB-8 kB-16 kB 3 V byte-erasable flash with 8-bit ADCs |
| 中文描述： | 8-BIT, FLASH, 18 MHz, MICROCONTROLLER, PDSO28 |
| 封裝： | 4.40 MM, PLASTIC, MO-153, SOT361-1, TSSOP-28 |
| 文件頁數(shù)： | 38/94頁 |
| 文件大?。?/td> | 629K |
| 代理商： | P89LPC9351FDH |
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P89LPC9331_9341_9351_9361
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 5 — 10 January 2011
43 of 94
NXP Semiconductors
P89LPC9331/9341/9351/9361
8-bit microcontroller with accelerated two-clock 80C51 core
7.22.7 Alternating output mode
In asymmetrical mode, the user can set up PWM channels A/B and C/D as alternating
pairs for bridge drive control. In this mode the output of these PWM channels are
alternately gated on every counter cycle.
7.22.8 PLL operation
The PWM module features a Phase Locked Loop that can be used to generate a
CCUCLK frequency between 16 MHz and 32 MHz. At this frequency the PWM module
provides ultrasonic PWM frequency with 10-bit resolution provided that the crystal
frequency is 1 MHz or higher. The PLL is fed an input signal from 0.5 MHz to 1 MHz and
generates an output signal of 32 times the input frequency. This signal is used to clock the
timer. The user will have to set a divider that scales PCLK by a factor from 1 to 16. This
divider is found in the SFR register TCR21. The PLL frequency can be expressed as
shown in Equation 1:
(1)
Where: N is the value of PLLDV3:0.
Fig 10. Symmetrical PWM
TOR2
compare value
timer value
non-inverted
inverted
002aaa894
0
Fig 11. Alternate output mode
TIMER VALUE
002aaa895
0
TOR2
COMPARE VALUE A (or C)
COMPARE VALUE B (or D)
PWM OUTPUT (OCA or OCC)
PWM OUTPUT (OCB or OCD)
PLL frequency
PCLK
N1
+
()
------------------
=
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| P89LPC9351FDH,518 | 功能描述:8位微控制器 -MCU Enhanced LPC935 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 最大時鐘頻率:50 MHz 程序存儲器大小: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 安裝風格:SMD/SMT |
| P89LPC935FA | 制造商:NXP Semiconductors 功能描述:IC MCU 8BIT 80C51 8K FLASH PLCC28 |
| P89LPC935FA,129 | 功能描述:8位微控制器 -MCU 80C51 8K FL 768B RAM 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 最大時鐘頻率:50 MHz 程序存儲器大小: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 安裝風格:SMD/SMT |
| P89LPC935FA129 | 制造商:NXP Semiconductors 功能描述:IC 8BIT MCU 80C51 18MHZ LCC-28 |
| P89LPC935FDH | 制造商:NXP Semiconductors 功能描述: |
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