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參數資料
| 型號： | PCF8570 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 256 x 8-bit static low-voltage RAM with I2C-bus interface |
| 中文描述： | 256 × 8位靜態低電壓內存具有I2C總線接口 |
| 文件頁數： | 7/20頁 |
| 文件大小： | 140K |
| 代理商： | PCF8570 |
1999 Jan 06
7
Philips Semiconductors
Product specification
256
×
8-bit static low-voltage RAM with
I
2
C-bus interface
PCF8570
8.5
I
2
C-bus protocol
Before any data is transmitted on the I
2
C-bus, the device which should respond is addressed first. The addressing is
always carried out with the first byte transmitted after the start procedure. The I
2
C-bus configuration for the different
PCF8570 WRITE and READ cycles is shown in Figs 7, 8 and 9.
Fig.7 Master transmits to slave receiver (WRITE) mode.
handbook, full pagewidth
S
0 A
SLAVE ADDRESS
WORD ADDRESS
A
A
DATA
P
acknowledgement
from slave
acknowledgement
from slave
acknowledgement
from slave
R/W
auto increment
memory word address
MBD822
n bytes
Fig.8 Master reads after setting word address (WRITE word address; READ data).
handbook, full pagewidth
S
0 A
SLAVE ADDRESS
WORD ADDRESS
A
A
SLAVE ADDRESS
acknowledgement
from slave
acknowledgement
from slave
acknowledgement
from slave
R/W
acknowledgement
from master
A
DATA
auto increment
memory word address
MLB930
P
no acknowledgement
from master
1
DATA
auto increment
memory word address
last byte
R/W
S
1
n bytes
at this moment master -
transmitter becomes
master - receiver and
PCF8570 slave -
receiver becomes
slave - transmitter
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相關代理商/技術參數 |
參數描述 |
|---|---|
| PCF8570P | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:256 x 8-bit static low-voltage RAM with I2C-bus interface |
| PCF8570P/F5 | 制造商:NXP Semiconductors 功能描述:3400ns Bulk 制造商:NXP Semiconductors 功能描述:IC SRAM CMOS 2K 8570 DIP8 |
| PCF8570P/F5,112 | 功能描述:靜態隨機存取存儲器 RAM 256X8 W/I2C LOW PWR -40+85 RoHS:否 制造商:Cypress Semiconductor 存儲容量:16 Mbit 組織:1 M x 16 訪問時間:55 ns 電源電壓-最大:3.6 V 電源電壓-最小:2.2 V 最大工作電流:22 uA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:TSOP-48 封裝:Tray |
| PCF8570P/F5 | 制造商:NXP Semiconductors 功能描述:IC SRAM CMOS 2K 8570 DIP8 |
| PCF8570P/F5112 | 制造商:NXP Semiconductors 功能描述:IC SRAM 1KBIT I2C DIP-8 制造商:NXP Semiconductors 功能描述:IC SRAM 2K 8570 DIP8 |
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