參數(shù)資料
型號: MAX7349ATG+T
廠商: Maxim Integrated Products
文件頁數(shù): 11/29頁
文件大?。?/td> 0K
描述: IC CNTRL SW SOUND 24-TQFN
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 2,500
應(yīng)用: 聲卡,播放器,記錄器
接口: I²C
電源電壓: 2.4 V ~ 3.6 V
封裝/外殼: 24-WFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 24-TQFN-EP(4x4)
包裝: 帶卷 (TR)
安裝類型: 表面貼裝
MAX7347/MAX7348/MAX7349
2-Wire Interfaced Low-EMI Key Switch
and Sounder Controllers
______________________________________________________________________________________
19
REGISTER DATA
REGISTER
ADDRESS
CODE (hex)
D7
D6
D5
D4
D3
D2
D1
D0
CONFIGURATION REGISTER
0x04
SHUTDOWN
KEY
SOUND
ENABLE
ALERT
SOUND
ENABLE
ALERT
INT
ENABLE
ALERT
INT
EVENT
SOUNDER
STATUS
TIMEOUT
ENABLE
Shutdown mode; key-scan and
sounder timing are disabled,
interrupts disabled, but alert input
can be read and port outputs (as
selected) can be changed
0x04
0
X
Operating mode; key scan is started,
and commands in sounder queue
are actioned
0x04
1
X
Power-up default setting
0x04
00
0
1
Table 12. Configuration Register Format (continued)
REGISTER DATA
REGISTER
ADDRESS
CODE (hex)
READ
WRITE
D7
D6
D5
D4
D3
D2
D1
D0
READ
PORT 7 PORT 6 PORT 5 PORT 4 PORT 3 PORT 2
INT
PORT
ALERT
INPUT
PORTS REGISTER
0x05
WRITE
PORT 7 PORT 6 PORT 5 PORT 4 PORT 3 PORT 2
INT
PORT
X
Clear port 2 low
0x05
Write
X
0
X
Set port 2 high (high
impedance)
0x05
Write
X
1
X
Clear port 3 low
0x05
Write
X
0
X
Set port 3 high (high
impedance)
0x05
Write
X
1
X
Clear port 4 low
0x05
Write
X
0
X
Set port 4 high (high
impedance)
0x05
Write
X
1
X
Clear port 5 low
0x05
Write
X
0
X
Set port 5 high (high
impedance)
0x05
Write
X
1
X
Clear port 6 low
0x05
Write
X
0
X
Set port 6 high (high
impedance)
0x05
Write
X
1
X
Table 13. Ports Register Format
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