參數(shù)資料
型號(hào)： P89C668HBBD
廠商： NXP SEMICONDUCTORS
元件分類(lèi)： 微控制器/微處理器
英文描述： 80C51 8-bit Flash microcontroller family 64KB ISP FLASH with 8KB RAM
中文描述： 8-BIT, FLASH, 33 MHz, MICROCONTROLLER, PQFP44
封裝： 10 X 10 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-389-1, LQFP-44
文件頁(yè)數(shù)： 10/54頁(yè)
文件大?。?/td> 299K
代理商： P89C668HBBD
Philips Semiconductors
Preliminary data
P89C668
80C51 8-bit Flash microcontroller family
64KB ISP Flash with 8KB RAM
2001 Jul 27
10
I
2
C SERIAL COMMUNICATION — SIO1
The I
2
C serial port is identical to the I
2
C serial port on the 8XC552,
8XC654, and 8XC652 devices. The operation of this subsystem is
described in detail in the 8XC552 section of this manual.
Note that in both the P89C668 and the 8XC552 the I
2
C pins are
alternate functions to port pins P1.6 and P1.7. Because of this,
P1.6 and P1.7 on these parts do not have a pull-up structure as
found on the 80C51. Therefore P1.6 and P1.7 have open drain
outputs on the P89C668.
Serial Control Register (S1CON) – See Table 3
S1CON (D8H)
CR2
ENS1
STA
STO
SI
AA
CR1
CR0
Bits CR0, CR1 and CR2 determine the serial clock frequency that is generated in the master mode of operation.
Table 3.
Serial Clock Rates
BIT FREQUENCY (kHz) AT f
OSC
6 MHz
8 MHz
CR2
CR1
CR0
3 MHz
12 MHz
2
15 MHz
2
117
1
134
1
156
1
188
1
31
250
1
500
1
1.22 < 52.1
0 < 250
f
OSC
DIVIDED BY
128
112
96
80
480
60
30
48
×
(256 – (reload value Timer 1))
Reload value Timer 1 in Mode 2.
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
23
27
31
37
6.25
50
100
47
54
63
75
12.5
100
200
62.5
71
83.3
100
17
133
1
267
1
94
107
1
125
1
150
1
25
200
1
400
1
0.24 < 62.5
0 < 255
0.49 < 62.5
0 < 254
0.65 < 55.6
0 < 253
0.98 < 50.0
0 < 251
NOTES:
1. These frequencies exceed the upper limit of 100 kHz of the I
2
C-bus specification and cannot be used in an I
2
C-bus application.
2. At f
OSC
= 12 MHz/15 MHz the maximum I
2
C bus rate of 100 kHz cannot be realized due to the fixed divider rates.
相關(guān)PDF資料
PDF描述
P89CE558 Single-chip 8-bit microcontroller(8位單片微控制器)
P83CE558 Single-chip 8-bit microcontroller
P89CE558EBB Single-chip 8-bit microcontroller
P89CE558EFB Single-chip 8-bit microcontroller
P80CE558 Single-chip 8-bit microcontroller(8位單片微控制器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
P89C668HBBD/00,557 功能描述:8位微控制器 -MCU 64K/8K FL 6CLK ISP/IAP QFP COM 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
P89C668HFA 功能描述:8位微控制器 -MCU 80C51 64K FL / 8K RM 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
P89C668HFA/00,512 功能描述:8位微控制器 -MCU 64K/8K FL 6CLK ISP/IAP PLCC IN 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
P89C669 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:80C51 8-bit microcontroller family with extended memory 96 kB Flash with 2 kB RAM
P89C669BBD 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:80C51 8-bit microcontroller family with extended memory 96 kB Flash with 2 kB RAM
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(xiě)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

*
*
*