Octal SMBus and I2C registered interface
參數(shù)資料
型號: PCA9556PW,112
廠商: NXP Semiconductors
文件頁數(shù): 11/13頁
文件大小: 0K
描述: IC I/O EXPANDER I2C 8B 16TSSOP
產(chǎn)品培訓模塊: I²C Bus Fundamentals
特色產(chǎn)品: NXP - I2C Interface
標準包裝: 96
接口: I²C,SM 總線
輸入/輸出數(shù): 8
中斷輸出:
頻率 - 時鐘: 100kHz
電源電壓: 3 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 16-TSSOP(0.173",4.40mm 寬)
供應商設備封裝: 16-TSSOP
包裝: 管件
包括: POR
產(chǎn)品目錄頁面: 826 (CN2011-ZH PDF)
其它名稱: 568-1059-5
935262899112
PCA9556PW
Philips Semiconductors
Product data
PCA9556
Octal SMBus and I2C registered interface
2002 Mar 28
7
SMBus Address
00
1
A2
A1
A0
slave address
su01048
fixed
programmable
R/W
Figure 6. PCA9556 address
SMBus Transactions
Data is transmitted to the PCA9556 registers using Write Byte transfers (see Figures 7 and 8). Data is read from the PCA9556 registers using
Read and Receive Byte transfers (see FIgures 9 and 10).
12
SCL
WRITE TO
PORT
DATA OUT
FROM PORT
3
4
567
8
SDA
S0
A
0
1
A2
A1
A0
DATA 1
slave address
data to port
start condition
R/W
acknowledge
from slave
acknowledge
from slave
acknowledge
from slave
tpv
DATA 1 VALID
SW00797
9
1
00
0
00
0
command byte
P
Figure 7. WRITE to output port register via Write Byte Protocol
12
SCL
3
4
567
8
SDA
S0
A
0
1
A2
A1
A0
DATA
slave address
data to register
start condition
R/W
acknowledge
from slave
acknowledge
from slave
acknowledge
from slave
SW00798
9
00
0
00
1
command byte
1/0
P
Figure 8. WRITE to I/O configuration or polarity inversion registers via Write Byte Protocol
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