参数资料
型号: P87LPC764BD,512
厂商: NXP Semiconductors
文件页数: 38/60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
Philips Semiconductors
Product data
P87LPC764
Low power, low price, low pin count (20 pin)
microcontroller with 4 kbyte OTP
2003 Sep 03
42
SU01754
WATCHDOG
INTERRUPT
S
Q
20-BIT COUNTER
STATE CLOCK
WDTE (UCFG1.7)
BOF (PCON.5)
POF (PCON.4)
WATCHDOG
RESET
CLEAR
8 MSBs
8 TO 1 MUX
WATCHDOG
FEED DETECT
WDOVF
(WDCON.5)
WDS2–0
(WDCON.2–0)
WDTE + WDRUN
WDCLK * WDTE
500 kHz
RC OSCILLATOR
ENABLE
CLOCK OUT
R
Figure 33. Block Diagram of the Watchdog Timer
BIT
SYMBOL
FUNCTION
WDCON.7, 6
Reserved for future use. Should not be set to 1 by user programs.
WDCON.5
WDOVF
Watchdog timer overflow flag. Set when a watchdog reset or timer overflow occurs. Cleared when
the watchdog is fed.
WDCON.4
WDRUN
Watchdog run control. The watchdog timer is started when WDRUN = 1 and stopped when
WDRUN = 0. This bit is forced to 1 (watchdog running) if the WDTE configuration bit = 1.
WDCON.3
WDCLK
Watchdog clock select. The watchdog timer is clocked by CPU clock/6 when WDCLK = 1 and by
the watchdog RC oscillator when WDCLK = 0. This bit is forced to 0 (using the watchdog RC
oscillator) if the WDTE configuration bit = 1.
WDCON.2–0 WDS2–0
Watchdog rate select.
WDS2–0
Timeout Clocks
Minimum Time
Nominal Time
Maximum Time
0 0 0
8,192
10 ms
25 ms
40 ms
0 0 1
16,384
20 ms
50 ms
80 ms
0 1 0
32,768
41 ms
100 ms
160 ms
0 1 1
65,536
82 ms
200 ms
320 ms
1 0 0
131,072
165 ms
400 ms
640 ms
1 0 1
262,144
330 ms
800 ms
1280 ms
1 1 0
524,288
660 ms
1.60 sec
2.60 sec
1 1 1
1,048,576
1.3 sec
3.20 sec
5.30 sec
WDS0
SU01476
WDS1
WDS2
WDCLK
WDRUN
WDOVF
0
1
2
3
4
5
6
7
WDCON
Reset Value:
S 30h for a watchdog reset.
S 10h for other rest sources if the watchdog is enabled via the WDTE configuration bit.
S 00h for other reset sources if the watchdog is disabled via the WDTE configuration bit.
Not Bit Addressable
Address: A7h
Figure 34. Watchdog Timer Control Register (WDCON)
相关PDF资料
PDF描述
COP8SAB720N9 IC MCU OTP 8BIT 2K 20DIP
COP8SAB720M9 IC MCU OTP 8BIT 2K 20SOIC
COP8SAA728M9 IC MCU OTP 8BIT 1K 28SOIC
COP8SAA720N9 IC MCU OTP 8BIT 1K 20DIP
P87LPC764BDH,512 IC 80C51 MCU 4K OTP 20-TSSOP
相关代理商/技术参数
参数描述
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