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參數(shù)資料
| 型號： | MAX7315AUE+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 3/26頁 |
| 文件大小： | 0K |
| 描述： | IC I/O EXPANDER I2C 8B 16TSSOP |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 2,500 |
| 接口： | I²C，SM 總線 |
| 輸入/輸出數(shù)： | 8 |
| 中斷輸出： | 是 |
| 頻率 - 時鐘： | 400kHz |
| 電源電壓： | 2 V ~ 3.6 V |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-TSSOP（0.173"，4.40mm 寬） |
| 供應商設備封裝： | 16-TSSOP |
| 包裝： | 帶卷 (TR) |
Any bytes received after the command byte are data
bytes. The first data byte goes into the internal register
of the MAX7315 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 MAX7315 internal registers because the
command byte address autoincrements (Table 2). A
diagram of a write to the output ports registers (blink
phase 0 register or blink phase 1 register) is given in
Figure 10.
Message Format for Reading
The MAX7315 is read using the MAX7315’s internally
stored command byte as an address pointer the same
way the stored command byte is used as an address
pointer for a write. The pointer autoincrements after
each data byte is read using the same rules as for a
write (Table 2). Thus, a read is initiated by first configur-
ing the MAX7315’s command byte by performing a
write (Figure 7). The master can now read n consecu-
tive bytes from the MAX7315 with the first data byte
being read from the register addressed by the initial-
ized command byte. When performing read-after-write
verification, remember to reset the command byte’s
address because the stored command byte address
has been autoincremented after the write (Table 2). A
diagram of a read from the input ports register is shown
in Figure 10 reflecting the states of the ports.
Operation with Multiple Masters
If the MAX7315 is operated on a 2-wire interface with
multiple masters, a master reading the MAX7315 should
use a repeated start between the write, which sets the
MAX7315’s address pointer, and the read(s) that takes
the data from the location(s) (Table 2). This is because it
is possible for master 2 to take over the bus after master
1 has set up the MAX7315’s address pointer but before
master 1 has read the data. If master 2 subsequently
changes the MAX7315’s address pointer, then master
1’s delayed read can be from an unexpected location.
MAX7315
8-Port I/O Expander with LED Intensity
Control, Interrupt, and Hot-Insertion Protection
______________________________________________________________________________________
11
Figure 8. Command and Single Data Byte Received
SA
A
P
0
SLAVE ADDRESS
COMMAND BYTE
DATA BYTE
1
BYTE
AUTOINCREMENT MEMORY ADDRESS
D15 D14
D13
D12
D11 D10
D9
D8
D1
D0
D3D2
D5D4
D7D6
ACKNOWLEDGE FROM MAX7315
HOW COMMAND BYTE AND DATA BYTE MAP INTO
MAX7315'S REGISTERS
R/W
Figure 9. n Data Bytes Received
SA
A
P
0
SLAVE ADDRESS
COMMAND BYTE
DATA BYTE
N
BYTES
AUTOINCREMENT MEMORY ADDRESS
D15 D14
D13
D12
D11 D10
D9
D8
D1
D0
D3D2
D5D4
D7D6
ACKNOWLEDGE FROM MAX7315
HOW COMMAND BYTE AND DATA BYTE MAP INTO
MAX7315'S REGISTERS
R/W
Figure 7. Command Byte Received
SA
A
P
0
SLAVE ADDRESS
COMMAND BYTE
ACKNOWLEDGE FROM MAX7315
D15
D14
D13
D12
D11
D10
D9
D8
COMMAND BYTE IS STORED ON RECEIPT OF
STOP CONDITION
ACKNOWLEDGE FROM MAX7315
R/W
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX7315AUE-TG05 | 功能描述:接口-I/O擴展器 8-Bit I/O Port 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 安裝風格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel |
| MAX7315EVCMAXQU+ | 功能描述:接口-I/O擴展器 8-Port I/O Expander with LED Intensity Control and Interrupt 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 安裝風格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel |
| MAX7315EVKIT+ | 功能描述:界面開發(fā)工具 Evaluation Kit for the MAX7315 RoHS:否 制造商:Bourns 產品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
| MAX7316 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:10-Port I/O Expander with LED Intensity Control and Interrupt |
| MAX7316AEE | 功能描述:接口-I/O擴展器 10-Bit I/O Port 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 安裝風格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel |
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