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参数资料
| 型号： | MAX7313ATG+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 3/26页 |
| 文件大小： | 0K |
| 描述： | IC I/O EXPANDER I2C 16B 24TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 接口： | I²C |
| 输入/输出数： | 16 |
| 中断输出： | 是 |
| 频率 - 时钟： | 400kHz |
| 电源电压： | 2 V ~ 3.6 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-WFQFN 裸露焊盘 |
| 供应商设备封装： | 24-TQFN-EP（4x4） |
| 包装： | 带卷 (TR) |
Any bytes received after the command byte are data
bytes. The first data byte goes into the internal register
of the MAX7313 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 MAX7313 internal registers because the
command byte address autoincrements (Table 2). A
diagram of a write to the output ports registers (blink
phase 0 registers or blink phase 1 registers) is given in
Figure 10.
Message Format for Reading
The MAX7313 is read using the MAX7313’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 MAX7313’s command byte by performing a
write (Figure 7). The master can now read n consecu-
tive bytes from the MAX7313 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 registers is
shown in Figure 10 reflecting the states of the ports.
Operation with Multiple Masters
If the MAX7313 is operated on a 2-wire interface with
multiple masters, a master reading the MAX7313 should
use a repeated start between the write, which sets the
MAX7313’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 MAX7313’s address pointer but before
master 1 has read the data. If master 2 subsequently
changes the MAX7313’s address pointer, then master
1’s delayed read can be from an unexpected location.
MAX7313
16-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
D3
D2
D5
D4
D7
D6
ACKNOWLEDGE FROM MAX7313
HOW COMMAND BYTE AND DATA BYTE MAP INTO
MAX7313'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
D3
D2
D5
D4
D7
D6
ACKNOWLEDGE FROM MAX7313
HOW COMMAND BYTE AND DATA BYTE MAP INTO
MAX7313'S REGISTERS
R/W
Figure 7. Command Byte Received
SA
A
P
0
SLAVE ADDRESS
COMMAND BYTE
ACKNOWLEDGE FROM MAX7313
D15
D14
D13
D12
D11
D10
D9
D8
COMMAND BYTE IS STORED ON RECEIPT OF
STOP CONDITION
ACKNOWLEDGE FROM MAX7313
R/W
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX7313DAEG+ | 功能描述:IC EXPANDER 16PORT 24QSOP RoHS:是 类别:集成电路 (IC) >> 接口 - I/O 扩展器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:74 系列:- 接口:I²C，JTAG 输入/输出数:9 中断输出:无 频率 - 时钟:400kHz 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:20-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:20-TSSOP 包装:管件 包括:EEPROM |
| MAX7313DAEG+T | 功能描述:IC EXPANDER 16PORT 24QSOP RoHS:是 类别:集成电路 (IC) >> 接口 - I/O 扩展器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:74 系列:- 接口:I²C，JTAG 输入/输出数:9 中断输出:无 频率 - 时钟:400kHz 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:20-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:20-TSSOP 包装:管件 包括:EEPROM |
| MAX7313DATG+ | 功能描述:IC EXPANDER 16PORT 24TQFN RoHS:是 类别:集成电路 (IC) >> 接口 - I/O 扩展器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:74 系列:- 接口:I²C，JTAG 输入/输出数:9 中断输出:无 频率 - 时钟:400kHz 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:20-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:20-TSSOP 包装:管件 包括:EEPROM |
| MAX7313DATG+T | 功能描述:IC EXPANDER 16PORT 24TQFN RoHS:是 类别:集成电路 (IC) >> 接口 - I/O 扩展器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:74 系列:- 接口:I²C，JTAG 输入/输出数:9 中断输出:无 频率 - 时钟:400kHz 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:20-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:20-TSSOP 包装:管件 包括:EEPROM |
| MAX7313EVKIT+ | 功能描述:界面开发工具 Evaluation Kit for the MAX7313 RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V |
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