参数资料
| 型号： | P87LPC764BD,512 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 24/60页 |
| 文件大小： | 0K |
| 描述： | IC 80C51 MCU 4K OTP 20-SOIC |
| 标准包装： | 38 |
| 系列： | LPC700 |
| 核心处理器： | 8051 |
| 芯体尺寸： | 8-位 |
| 速度： | 20MHz |
| 连通性： | I²C，UART/USART |
| 外围设备： | 欠压检测/复位，LED，POR，WDT |
| 输入/输出数： | 18 |
| 程序存储器容量： | 4KB（4K x 8） |
| 程序存储器类型： | OTP |
| RAM 容量： | 128 x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 2.7 V ~ 6 V |
| 振荡器型： | 内部 |
| 工作温度： | 0°C ~ 70°C |
| 封装/外壳： | 20-SOIC（0.295"，7.50mm 宽） |
| 包装： | 管件 |
| 产品目录页面： | 706 (CN2011-ZH PDF) |
| 其它名称： | 568-1258-5 935263358512 P87LPC764BD |
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Philips Semiconductors
Product data
P87LPC764
Low power, low price, low pin count (20 pin)
microcontroller with 4 kbyte OTP
2003 Sep 03
29
Mode 0
Putting either Timer into Mode 0 makes it look like an 8048 Timer,
which is an 8-bit Counter with a divide-by-32 prescaler. Figure 24
shows Mode 0 operation.
In this mode, the Timer register is configured as a 13-bit register. As
the count rolls over from all 1s to all 0s, it sets the Timer interrupt
flag TFn. The count input is enabled to the Timer when TRn = 1 and
either GATE = 0 or INTn = 1. (Setting GATE = 1 allows the Timer to
be controlled by external input INTn, to facilitate pulse width
measurements). TRn is a control bit in the Special Function Register
TCON (Figure 23). The GATE bit is in the TMOD register.
The 13-bit register consists of all 8 bits of THn and the lower 5 bits
of TLn. The upper 3 bits of TLn are indeterminate and should be
ignored. Setting the run flag (TRn) does not clear the registers.
Mode 0 operation is the same for Timer 0 and Timer 1. See
Figure 24. There are two different GATE bits, one for Timer 1
(TMOD.7) and one for Timer 0 (TMOD.3).
BIT
SYMBOL
FUNCTION
TCON.7
TF1
Timer 1 overflow flag. Set by hardware on Timer/Counter overflow. Cleared by hardware when the
interrupt is processed, or by software.
TCON.6
TR1
Timer 1 Run control bit. Set/cleared by software to turn Timer/Counter 1 on/off.
TCON.5
TF0
Timer 0 overflow flag. Set by hardware on Timer/Counter overflow. Cleared by hardware when the
processor vectors to the interrupt routine, or by software.
TCON.4
TR0
Timer 0 Run control bit. Set/cleared by software to turn Timer/Counter 0 on/off.
TCON.3
IE1
Interrupt 1 Edge flag. Set by hardware when external interrupt 1 edge is detected. Cleared by
hardware when the interrupt is processed, or by software.
TCON.2
IT1
Interrupt 1 Type control bit. Set/cleared by software to specify falling edge/low level triggered
external interrupts.
TCON.1
IE0
Interrupt 0 Edge flag. Set by hardware when external interrupt 0 edge is detected. Cleared by
hardware when the interrupt is processed, or by software.
TCON.0
IT0
Interrupt 0 Type control bit. Set/cleared by software to specify falling edge/low level triggered
external interrupts.
IT0
SU01172
IE0
IT1
IE1
TR0
TF0
TR1
TF1
0
1
2
3
4
5
6
7
TCON
Reset Value: 00h
Bit Addressable
Address: 88h
Figure 23. Timer/Counter Control Register (TCON)
SU01173
TLn
(5 BITS)
THn
(8 BITS)
OSC/6
OR
OSC/12
OVERFLOW
Tn PIN
TnOE
TOGGLE
CONTROL
C/T = 1
C/T = 0
Tn PIN
TRn
GATE
INTn PIN
INTERRUPT
TFn
Figure 24. Timer/Counter 0 or 1 in Mode 0 (13-Bit Counter)
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| P87LPC764BDH | 制造商:NXP Semiconductors 功能描述: |
| P87LPC764BDH,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 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| P87LPC764BDH,518 | 功能描述:8位微控制器 -MCU 14 PIN MCU 1KBYTE OTP RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| P87LPC764BDH/01 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Low power, low price, low pin count (20 pin) microcontroller with 4 kbyte OTP |
| P87LPC764BDH/CP323 | 功能描述:16位微控制器 - MCU P87LPC764BDH/TSSOP20/TUBEDP//C RoHS:否 制造商:Texas Instruments 核心:RISC 处理器系列:MSP430FR572x 数据总线宽度:16 bit 最大时钟频率:24 MHz 程序存储器大小:8 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:VQFN-40 安装风格:SMD/SMT |
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