When the power supply is applied to VCC " />
參數資料
型號: CAT9554WI-GT2
廠商: ON Semiconductor
文件頁數: 2/14頁
文件大?。?/td> 0K
描述: IC I/O EXPANDER I2C 8B 16SOIC
標準包裝: 1
接口: I²C,SM 總線
輸入/輸出數: 8
中斷輸出:
頻率 - 時鐘: 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(0.154",3.90mm 寬)
供應商設備封裝: 16-SOIC
包裝: 標準包裝
包括: POR
產品目錄頁面: 806 (CN2011-ZH PDF)
其它名稱: CAT9554WI-GT2DKR
CAT9554, CAT9554A
http://onsemi.com
10
PowerOn Reset Operation
When the power supply is applied to VCC pin, an internal
poweron reset pulse holds the CAT9554/9554A in a reset
state until VCC reaches VPOR level. At this point, the reset
condition is released and the internal state machine and the
CAT9554/9554A registers are initialized to their default
state.
12
34
5
6
7
8
9
SCL
SDA
READ FROM
PORT
DATA INTO
PORT
S 0100 A2
A0 1
A
A1
A
DATA 4
NA P
no acknowledge
from master
acknowledge
from master
acknowledge
from slave
slave address
data from port
start condition
stop
condition
DATA 2
DATA 3
DATA 4
DATA 1
data from port
DATA 1
DATA
S 0100 A2
A0 0
A
A1
0 1 0 0 A2 A1 A0
A
DATA
A
acknowledge from master
acknowledge from slave
slave address
data from register
COMMAND BYTE
AS
1
acknowledge from slave
At this moment mastertransmitter becomes
masterreceiver and slavereceiver
becomes slavetransmitter
NA
no acknowledge
from master
data from register
P
last byte
first byte
Figure 12. Read from Register
Figure 13. Read Input Port Register
tIR
tIV
INT
tPH
R/W
tPS
R/W
相關PDF資料
PDF描述
PCA9655EMTTXG IC I/O EXPANDER I2C 16B QFN-24
2-641106-0 CONN DUST COVER 20POS .156
641106-9 09P MTA156 EDGE CONN COVER
1-641106-2 CONN DUST COVER 12POS .156
641106-6 06P MTA156 EDGE CONN COVER
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