參數(shù)資料
型號(hào)： P89LPC921
廠商： NXP Semiconductors N.V.
英文描述： MINIATURE POWER RELAY
中文描述： 8位微控制器兩個(gè)小時(shí)80C51的核心2鍵盤/ 4 KB的/ 8 KB的3伏的低功耗Flash 256 - RAM的字節(jié)數(shù)據(jù)
文件頁(yè)數(shù)： 26/45頁(yè)
文件大小： 877K
代理商： P89LPC921
Philips Semiconductors
P89LPC920/921/922
8-bit microcontrollers with two-clock 80C51 core
Product data
Rev. 06 — 21 November 2003
26 of 45
9397 750 12285
Koninklijke Philips Electronics N.V. 2003. All rights reserved.
8.19 I
2
C-bus serial interface
I
2
C-bus uses two wires (SDA and SCL) to transfer information between devices
connected to the bus, and it has the following features:
Bidirectional data transfer between masters and slaves
Multimaster bus (no central master)
Arbitration between simultaneously transmitting masters without corruption of
serial data on the bus
Serial clock synchronization allows devices with different bit rates to communicate
via one serial bus
Serial clock synchronization can be used as a handshake mechanism to suspend
and resume serial transfer
The I
2
C-bus may be used for test and diagnostic purposes.
A typical I
2
C-bus configuration is shown in
Figure 8
. The P89LPC920/921/922 device
provides a byte-oriented I
2
C-bus interface that supports data transfers up to 400 kHz.
Fig 8.
I
2
C-bus configuration.
OTHER DEVICE
WITH I
2
C-BUS
INTERFACE
SDA
SCL
RP
RP
OTHER DEVICE
WITH I
2
C-BUS
INTERFACE
P1.3/SDA
P1.2/SCL
P89LPC920/921/922
I
2
C-BUS
002aaa420
相關(guān)PDF資料
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參數(shù)描述
P89LPC9211 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontroller with accelerated two-clock 80C51 core 2 kB/4 kB/8 kB 3 V byte-erasable flash with 8-bit ADC
P89LPC9211FDH 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontroller with accelerated two-clock 80C51 core 2 kB/4 kB/8 kB 3 V byte-erasable flash with 8-bit ADC
P89LPC9211FDH,112 功能描述:8位微控制器 -MCU MCU 8-Bit CISC 4KB Flash2.5V/3.3V 20Pin 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
P89LPC921FDH 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontrollers with two-clock 80C51 core 2 kB/4 kB/8 kB 3 V low-power Flash with 256-byte data RAM
P89LPC921FDH,512 功能描述:8位微控制器 -MCU 80C51 4K FL 256B 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(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
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