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參數(shù)資料
| 型號(hào)： | MAX7300ANI |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 其它接口 |
| 英文描述： | 2-Wire-Interfaced, 2.5V to 5.5V, 20-Port or 28-Port I/O Expander |
| 中文描述： | SPECIALTY INTERFACE CIRCUIT, PDIP28 |
| 封裝： | PLASTIC, DIP-28 |
| 文件頁(yè)數(shù)： | 9/22頁(yè) |
| 文件大?。?/td> | 348K |
| 代理商： | MAX7300ANI |
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M
2-Wire-Interfaced, 2.5V to 5.5V, 20-Port or
28-Port I/O Expander
__________________________________________________________________________
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
t
SU, DAT
t
HD, DAT
t
LOW
t
HD, STA
t
HIGH
t
R
t
F
t
SU, STA
t
HD, STA
t
SU, STO
t
BUF
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 |
|---|---|
| MAX7300ANI+ | 功能描述:接口-I/O擴(kuò)展器 Integrated Circuits (ICs) 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 |
| MAX7300ATI | 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 |
| MAX7300ATI+ | 功能描述:接口-I/O擴(kuò)展器 2Wire 2.5-5.5V 20/28Port I/Ox 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 |
| MAX7300ATI+T | 制造商:Maxim Integrated Products 功能描述:MAX7300ATI+T |
| MAX7300ATI-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 |
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