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參數(shù)資料
型號(hào): PCA9534D,118
廠商: NXP Semiconductors
文件頁(yè)數(shù): 24/25頁(yè)
文件大小: 0K
描述: IC I/O EXPANDER I2C 8B 16SOIC
產(chǎn)品培訓(xùn)模塊: I²C Bus Fundamentals
特色產(chǎn)品: NXP - I2C Interface
標(biāo)準(zhǔn)包裝: 1
接口: I²C,SM 總線
輸入/輸出數(shù): 8
中斷輸出:
頻率 - 時(shí)鐘: 400kHz
電源電壓: 2.3 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-SOIC(0.295",7.50mm 寬)
供應(yīng)商設(shè)備封裝: 16-SO
包裝: 標(biāo)準(zhǔn)包裝
包括: POR
產(chǎn)品目錄頁(yè)面: 825 (CN2011-ZH PDF)
其它名稱: 568-1833-6
PCA9534_3
NXP B.V. 2006. All rights reserved.
Product data sheet
Rev. 03 — 6 November 2006
8 of 25
NXP Semiconductors
PCA9534
8-bit I2C-bus and SMBus low power I/O port with interrupt
Fig 8.
Write to Output Port register
1
0
A2 A1 A0
0
A
S0
START condition
R/W
acknowledge
from slave
002aac472
A
acknowledge
from slave
SCL
SDA
A
write to port
data out
from port
P
tv(Q)
9
8
7
6
5
4
3
2
1
command byte
acknowledge
from slave
data to port
DATA 1
slave address
0000001
0
STOP
condition
data 1 valid
Fig 9.
Write to Conguration register or Polarity Inversion register
1
0
A2 A1 A0
0
A
S0
START condition
R/W
acknowledge
from slave
002aac473
A
acknowledge
from slave
SCL
SDA
A
data to
register
P
9
8
7
6
5
4
3
2
1
command byte
acknowledge
from slave
data to register
DATA
slave address
000001 1/0
0
STOP
condition
Fig 10. Read from register
1
0
A2 A1 A0
0
A
S0
START condition
R/W
acknowledge
from slave
002aac474
A
acknowledge
from slave
SDA
A
P
command byte
acknowledge
from master
data from register
DATA (first byte)
slave address
STOP
condition
S
(repeated)
START condition
(cont.)
1
0
A2 A1 A0
1
A
0
R/W
acknowledge
from slave
slave address
at this moment master-transmitter becomes master-receiver
and slave-receiver becomes slave-transmitter
NA
no acknowledge
from master
data from register
DATA (last byte)
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