- 您現(xiàn)在的位置：買賣IC網 > PDF目錄11710 > MAX7349ATG+T (Maxim Integrated Products)IC CNTRL SW SOUND 24-TQFN PDF資料下載
參數(shù)資料
| 型號： | MAX7349ATG+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 3/29頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC CNTRL SW SOUND 24-TQFN |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 2,500 |
| 應用： | 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 |
| 供應商設備封裝： | 24-TQFN-EP（4x4） |
| 包裝： | 帶卷 (TR) |
| 安裝類型： | 表面貼裝 |
第1頁第2頁當前第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁
MAX7347/MAX7348/MAX7349
2-Wire Interfaced Low-EMI Key Switch
and Sounder Controllers
______________________________________________________________________________________
11
Message Format for Writing the Sounder
Controller
A write to the MAX7347/MAX7348/MAX7349s’ sounder
controller comprises the transmission of the
MAX7347/MAX7348/MAX7349s’ sounder slave address
with the R/W bit set to zero, followed by at least 1 com-
mand byte of information. The sounder controller ana-
lyzes each incoming data byte, and depending on the
state of the sounder controller’s 2-deep FIFO and the
contents of the command byte, the command byte is
added to the FIFO or it overwrites the last FIFO data
item (Table 16).
Message Format for Reading the Sounder
Controller
A read from the MAX7347/MAX7348/MAX7349s’ sounder
controller comprises the transmission of the
MAX7347/MAX7348/MAX7349s’ sounder slave address
with the R/W bit set to 1. The master can now read n con-
secutive bytes from the MAX7347/MAX7348/MAX7349,
each byte being a snapshot of the FIFO status of the
sounder controller (Table 16). If the master wishes to poll
the sounder controller until there is room for another com-
mand to be sent, the master can read bytes continuously
from the sounder controller until the information is satis-
factory and then issue a STOP condition.
Operation with Multiple Masters
If the MAX7347/MAX7348/MAX7349 are operated on a 2-
wire interface with multiple masters, a master reading the
MAX7347/MAX7348/MAX7349 should use a repeated
start between the write that sets the MAX7347/MAX7348/
MAX7349s’ address pointer, and the read(s) that takes
the data from the location(s). This is because it is possi-
ble for master 2 to take over the bus after master 1 has
set up the MAX7347/MAX7348/MAX7349s’ address
pointer but before master 1 has read the data. If master 2
subsequently resets the MAX7347/MAX7348/MAX7349s’
address pointer, then master 1’s read may be from an
unexpected location.
REGISTER
FUNCTION
ADDRESS
CODE (hex)
AUTOINCREMENT
ADDRESS (hex)
Keys FIFO
0x00
Debounce
0x01
0x02
Autorepeat
0x02
0x03
Interrupt
0x03
0x04
Configuration
0x04
0x05
Port
0x05
0x06
Key Sound
0x06
0x07
Alert Sound
0x07
0x00
Table 4. Key-Scan Command Address
Autoincrement Rules
SA
A
P
0
SLAVE ADDRESS
COMMAND BYTE
D7
D6
D5
D4
D3
D2
D1
D0
COMMAND BYTE IS STORED ON RECEIPT OF
ACKNOWLEDGE CONDITION
ACKNOWLEDGE FROM MAX7347/MAX7348/MAX7349
R/W
Figure 7. Command Byte Received
SA
AA
P
0
SLAVE ADDRESS
COMMAND BYTE
DATA BYTE
1 BYTE
AUTOINCREMENT
COMMAND BYTE ADDRESS
D7
D6
D5
D4
D3
D2
D1
D0
D1
D0
D3
D2
D5
D4
D7
D6
ACKNOWLEDGE FROM MAX7347/MAX7348/MAX7349
R/W
Figure 8. Command and Single Data Byte Received
相關PDF資料 |
PDF描述 |
|---|---|
| VE-J54-IW-F2 | CONVERTER MOD DC/DC 48V 100W |
| VE-B6V-IW-F4 | CONVERTER MOD DC/DC 5.8V 100W |
| VE-B6V-IW-F3 | CONVERTER MOD DC/DC 5.8V 100W |
| VE-B6W-IW-F4 | CONVERTER MOD DC/DC 5.5V 100W |
| VE-B6W-IW-F3 | CONVERTER MOD DC/DC 5.5V 100W |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX7349EVKIT | 功能描述:接口 - 專用 Evaluation Kit for the MAX7349/Emulates: MAX7347/MAX7348 RoHS:否 制造商:Texas Instruments 產品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:BGA-59 |
| MAX734C/D | 功能描述:直流/直流開關調節(jié)器 +12V 120mA Flash Memory Programming Supply RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| MAX734C/D DIE | 制造商:Maxim Integrated Products 功能描述: |
| MAX734CPA | 功能描述:直流/直流開關調節(jié)器 12V 120mA Flash Mem Programming Supply RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| MAX734CPA+ | 功能描述:直流/直流開關調節(jié)器 12V 120mA Flash Mem Programming Supply RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
發(fā)布緊急采購，3分鐘左右您將得到回復。