參數(shù)資料
型號(hào)： P87LPC762BD512
元件分類： 8位微控制器
英文描述： IC-SM-8-BIT MCU
中文描述： 集成電路釤8位微控制器
文件頁(yè)數(shù)： 23/56頁(yè)
文件大?。?/td> 312K
代理商： P87LPC762BD512
Philips Semiconductors
Preliminary specification
87LPC762
Low power, low price, low pin count (20 pin)
microcontroller with 2 kbyte OTP
2001 Apr 04
20
SU01222
BIT
P2M1.7
P2M1.6
P2M1.5
P2M1.4
SYMBOL
P2S
P1S
P0S
ENCLK
FUNCTION
When P2S = 1, this bit enables Schmitt trigger inputs on Port 2.
When P1S = 1, this bit enables Schmitt trigger inputs on Port 1.
When P0S = 1, this bit enables Schmitt trigger inputs on Port 0.
When ENCLK is set and the 87LPC762 is configured to use the on-chip RC oscillator, a clock
output is enabled on the X2 pin (P2.0). Refer to the Oscillator section for details.
When set, the P.7 pin is toggled whenever Timer 1 overflows. The output frequency is therefore
one half of the Timer 1 overflow rate. Refer to the Timer/Counters section for details.
When set, the P1.2 pin is toggled whenever Timer 0 overflows. The output frequency is therefore
one half of the Timer 0 overflow rate. Refer to the Timer/Counterssection for details.
These bits, along with the matching bits in the P2M2 register, control the output configuration of
P2.1 and P2.0 respectively, as shown in Table 4.
P2M1.3
ENT1
P2M1.2
ENT0
P2M1.1, P2M1.0
—
(P2M1.0)
(P2M1.1)
ENT0
ENT1
ENCLK
P0S
P1S
P2S
0
1
2
3
4
5
6
7
P2M1
Reset Value: 00h
Not Bit Addressable
Address: A4h
Figure 13. Port 2 Mode Register 1 (P2M1)
Keyboard Interrupt (KBI)
The Keyboard Interrupt function is intended primarily to allow a
single interrupt to be generated when any key is pressed on a
keyboard or keypad connected to specific pins of the 87LPC762, as
shown in Figure 14. This interrupt may be used to wake up the CPU
from Idle or Power Down modes. This feature is particularly useful in
handheld, battery powered systems that need to carefully manage
power consumption yet also need to be convenient to use.
The 87LPC762 allows any or all pins of port 0 to be enabled to
cause this interrupt. Port pins are enabled by the setting of bits in
the KBI register, as shown in Figure 15. The Keyboard Interrupt Flag
(KBF) in the AUXR1 register is set when any enabled pin is pulled
low while the KBI interrupt function is active. An interrupt will
generated if it has been enabled. Note that the KBF bit must be
cleared by software.
Due to human time scales and the mechanical delay associated with
keyswitch closures, the KBI feature will typically allow the interrupt
service routine to poll port 0 in order to determine which key was
pressed, even if the processor has to wake up from Power Down
mode. Refer to the section on Power Reduction Modes for details.
相關(guān)PDF資料
PDF描述
P87LPC762FD512 IC-SM-8-BIT MCU
P87LPC764 Low power. low price. low pin count (20 pin) microcontroller with 4 kbyte OTP
P87LPC764 Low power, low price, low pin count(20 pin) microcontroller with4 kB OTP(帶4 kB OTP的低功耗，低價(jià)格，少引腳（20引腳）的微控制器)
P87LPC767 Low power, low price, low pin count 20 pin microcontroller with 4-kbyte OTP and 8-bit A/D converter
P87LPC767HD CONNECTOR ACCESSORY
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
P87LPC762BDH 功能描述:8位微控制器 -MCU 80C51 2K/128 OTP 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
P87LPC762BDH,512 功能描述:8位微控制器 -MCU 80C51 2K/128 OTP 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
P87LPC762BN 制造商:NXP Semiconductors 功能描述:IC 8BIT MCU 87LC762 DIP20
P87LPC762BN,112 功能描述:8位微控制器 -MCU 80C51 2K/128 OTP 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
P87LPC762BN112 制造商:NXP Semiconductors 功能描述:IC 8BIT MCU 80C51 20MHZ DIP-20
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*