參數(shù)資料
型號(hào)： MAX7300AAI+T
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 20/20頁(yè)
文件大?。?/td> 0K
描述： IC I/O EXPANDER I2C 28B 28SSOP
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 2,000
接口： I²C，2 線串口
輸入/輸出數(shù)： 28
中斷輸出： 是
頻率 - 時(shí)鐘： 400kHz
電源電壓： 2.5 V ~ 5.5 V
工作溫度： -40°C ~ 125°C
安裝類型： 表面貼裝
封裝/外殼： 28-SSOP（0.209"，5.30mm 寬）
供應(yīng)商設(shè)備封裝： 28-SSOP
包裝： 帶卷 (TR)
MAX7300
2-Wire-Interfaced, 2.5V to 5.5V, 20-Port or
28-Port I/O Expander
_______________________________________________________________________________________
9
Any bytes received after the command byte are consid-
ered data bytes. The first data byte goes into the inter-
nal register of the MAX7300 selected by the command
byte (Figure 8). If multiple data bytes are transmitted
before a STOP condition is detected, these bytes are
generally stored in subsequent MAX7300 internal regis-
ters because the command byte address generally
autoincrements (Table 4).
Message Format for Reading
The MAX7300 is read using the MAX7300’s internally
stored command byte as address pointer, the same way
the stored command byte is used as address pointer for
a write. The pointer generally autoincrements after each
data byte is read using the same rules as for a write
(Table 4). Thus, a read is initiated by first configuring the
MAX7300’s command byte by performing a write (Figure
7). The master can now read ‘n’ consecutive bytes from
the MAX7300, with the first data byte being read from the
register addressed by the initialized command byte
(Figure 9). When performing read-after-write verification,
remember to reset the command byte’s address
because the stored control byte address generally has
been autoincremented after the write (Table 4). Table 5
is the register address map.
Figure 2. 2-Wire Serial Interface Timing Details
SCL
SDA
START CONDITION
STOP CONDITION
REPEATED START CONDITION
START CONDITION
tSU, DAT
tHD, DAT
tLOW
tHD, STA
tHIGH
tR
tF
tSU, STA
tHD, STA
tSU, STO
tBUF
Figure 3. Start and Stop Conditions
SDA
SCL
S
START
CONDITION
P
STOP
CONDITION
SDA
SCL
DATA LINE STABLE; DATA VALID CHANGE OF DATA ALLOWED
Figure 4. Bit Transfer
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX7300AAX 功能描述:接口-I/O擴(kuò)展器 RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
MAX7300AAX+ 功能描述:接口-I/O擴(kuò)展器 2.5-5.5V 20/28 Port I/O Expander RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
MAX7300AAX+T 功能描述:接口-I/O擴(kuò)展器 2.5-5.5V 20/28 Port I/O Expander RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
MAX7300AAX-T 功能描述:接口-I/O擴(kuò)展器 RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
MAX7300AGL 功能描述:接口-I/O擴(kuò)展器 2.5-5.5V 20/28 Port I/O Expander RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
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