參數(shù)資料
型號(hào)： PCA9556
廠商： NXP Semiconductors N.V.
英文描述： Octal SMBus Registered Interface(八位SM總線寄存接口)
中文描述： 八進(jìn)制注冊(cè)的SMBus接口（八位釤總線寄存接口）
文件頁數(shù)： 7/12頁
文件大小： 111K
代理商： PCA9556
Philips Semiconductors
Product specification
PCA9556
Octal SMBus Registered Interface
1998 Dec 18
7
1
1
A2
A1 A0
0
0
1
1
A2
A1
A0
0
0
S
0
A
A
A
COMMAND BYTE
acknowledge
from slave
R/W
acknowledge
from slave
A
P
NA
acknowledge
from slave
acknowledge
from master
S
DATA
DATA
R/W
first byte
at this moment master-transmitter
becomes master-receiver and
slave-receiver becomes
slave-transmitter
last byte
su01052
no acknowledge
from master
1
slave address
data from register
data from register
slave address
Figure 8. READ from register via Read byte protocol
0
0
1
1
A2
A1
A0
READ FROM
PORT
DATA INTO
PORT
SDA
S
1
A
A
DATA 1
DATA 4
slave address
data from port
data from port
start condition
R/W
acknowledge
from slave
acknowledge
from master
stop
condition
t
ps
DATA 4
DATA 2
P
DATA 3
t
ph
Notes:
1. This figure assumes the command byte has previously been programmed with 00h.
2. Transfer of data can be stopped at any moment by a stop condition. When this occurs,
data present at the last acknowledge phase is valid (output mode). Input data is lost.
su01051
no acknowledge
from master
NA
Figure 9. READ input port register via Receive byte protocol
相關(guān)PDF資料
PDF描述
PCA9556PW Octal SMBus Registered Interface
PCA9557 8-bit I2C and SMBus I/0 port with reset
PCA9558 8-bit I2C and SMBus I/O port with 5-bit multiplexed/1-bit latched 6-bit I2C EEPROM and 2 k bit EEPROM
PCA9559 5-bit multiplexed/1-bit latched 6-bit I I C EEPROM(5位多路的/1位鎖存的6位IIC EEPROM)
PCA9564 Parallel bus to I2C-bus controller
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PCA9556_02 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Octal SMBus and I2C registered interface
PCA9556PW 制造商:NXP Semiconductors 功能描述:8-bit Octal bus,2.3-5.5V,PCA9556PW 制造商:NXP Semiconductors 功能描述:OCTAL SMBUS AND I2C REGISTERED INTERFACE
PCA9556PW,112 功能描述:接口-I/O擴(kuò)展器 OCTAL SMBUS REG INTERFACE RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
PCA9556PW,118 功能描述:接口-I/O擴(kuò)展器 OCTAL SMBUS REG RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
PCA9556PW,118-CUT TAPE 制造商:NXP 功能描述:PCA9556 Series Octal SMBus and I2C Registered Interface - TSSOP - 16
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