- 您现在的位置：买卖IC网 > PDF目录367819 > PCF8522ET I2C Serial EEPROM PDF资料下载
参数资料
| 型号： | PCF8522ET |
| 英文描述： | I2C Serial EEPROM |
| 中文描述： | I2C串行EEPROM的 |
| 文件页数： | 10/24页 |
| 文件大小： | 179K |
| 代理商： | PCF8522ET |
1997 Feb 13
10
Philips Semiconductors
Product specification
256 to 1024
×
8-bit CMOS EEPROMs with
I
2
C-bus interface
PCF85xxC-2 family
8.5
Read operations
Read operations are initiated in the same manner as write
operations with the exception that the LSB of the slave
address is set to logic 1.
There are three basic read operations; current address
read, random read and sequential read sequential read.
8.5.1
R
EMARK
The lower 8 bits of the word address are incremented after
each transmission of a data byte (read or write). The MSB
of the word address, which is defined in the slave address,
is not changed when the word address count overflows.
Thus, the word address overflows from 255 to 0 and from
511 to 256.
Fig.8 Master reads PCF85xxC-2 slave after setting word address (write word address; read data).
handbook, full pagewidth
S
0 A
SLAVE ADDRESS
WORD ADDRESS
A
A
SLAVE ADDRESS
acknowledge
from slave
acknowledge
from slave
acknowledge
from slave
R/W
acknowledge
from master
A
DATA
auto increment
word address
MBA703 - 1
P
no acknowledge
from master
1
DATA
auto increment
word address
last byte
R/W
S
1
n bytes
at this moment master
transmitter becomes
master receiver and
EEPROM slave receiver
becomes slave transmitter
Fig.9 Master reads PCF85xxC-2 immediately after first byte (read mode).
handbook, full pagewidth
S
1 A
SLAVE ADDRESS
DATA
A
1
DATA
acknowledge
from slave
acknowledge
from master
no acknowledge
from master
R/W
auto increment
word address
MBA704 - 1
auto increment
word address
n bytes
last bytes
P
相关PDF资料 |
PDF描述 |
|---|---|
| PCF8524P | I2C Serial EEPROM |
| PCF8531U | LCD Display Driver |
| PCF8566PN | LCD Display Driver |
| PCF8566TD | LCD Display Driver |
| PCF8566TD-T | LCD Display Driver |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PCF8523 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Real-Time Clock (RTC) and calendar |
| PCF8523T | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Save power with small, ultra-efficient RTCs |
| PCF8523T/1,118 | 功能描述:实时时钟 REAL-TIME CLOCK (RTC) AND CALENDAR RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| PCF8523T/1,118-CUT TAPE | 制造商:NXP 功能描述:PCF8523 Series 5.5 V 1 Mbps I2C Interface Real Time Clock / Calendar - SOIC-8 |
| PCF8523T-1 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Real-Time Clock (RTC) and calendar |
发布紧急采购，3分钟左右您将得到回复。