- 您现在的位置：买卖IC网 > PDF目录3774 > MAX7314ATG+ (Maxim Integrated Products)IC I/O EXPANDER I2C 16B 24TQFN PDF资料下载
参数资料
| 型号： | MAX7314ATG+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 3/25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： | 75 |
| 接口： | I²C |
| 输入/输出数： | 18 |
| 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： | 管件 |
Device Reset
The reset input RST is an active-low input. When taken
low, RST clears any transaction to or from the MAX7314
on the serial interface and configures the internal regis-
ters to the same state as a power-up reset (Table 3),
which resets all ports as inputs. The MAX7314 then
waits for a START condition on the serial interface.
Detailed Description
Initial Power-Up
On power-up, and whenever the RST input is pulled
low, all control registers are reset and the MAX7314
enters standby mode (Table 3). Power-up status makes
all ports into inputs and disables both the PWM oscilla-
tor and blink functionality. RST can be used as a hard-
ware shutdown input, which effectively turns off any
LED (or other) loads and puts the device into its lowest
power condition.
Configuration Register
The configuration register is used to configure the PWM
intensity mode, interrupt, and blink behavior, operate
the INT/O16 output, and read back the interrupt status
(Table 4).
Ports Configuration
The 16 I/O ports P0 through P15 can be configured to
any combination of inputs and outputs using the ports
configuration registers (Table 5). The INT/O16 output
can also be configured as an extra general-purpose
output, and the BLINK input can be configured as an
extra general-purpose input using the configuration
register (Table 4).
Input Ports
The input ports registers are read only (Table 6). They
reflect the incoming logic levels of the ports, regardless of
whether the port is defined as an input or an output by the
ports configuration registers. Reading an input ports reg-
ister latches the current-input logic level of the affected
eight ports. A write to an input ports register is ignored.
MAX7314
18-Port GPIO with LED Intensity Control,
Interrupt, and Hot-Insertion Protection
______________________________________________________________________________________
11
Table 2. Register Address Map
REGISTER
ADDRESS CODE
(hex)
AUTOINCREMENT
ADDRESS
Read input ports P7–P0
0x00
0x01
Read input ports P15–P8
0x01
0x00
Blink phase 0 outputs P7–P0
0x02
0x03
Blink phase 0 outputs P15–P8
0x03
0x02
Ports configuration P7–P0
0x06
0x07
Ports configuration P15–P8
0x07
0x06
Blink phase 1 outputs P7–P0
0x0A
0x0B
Blink phase 1 outputs P15–P8
0x0B
0x0A
Master, O16 intensity
0x0E
0x0E (no change)
Configuration
0x0F
0x0F (no change)
Outputs intensity P1, P0
0x10
0x11
Outputs intensity P3, P2
0x11
0x12
Outputs intensity P5, P4
0x12
0x13
Outputs intensity P7, P6
0x13
0x14
Outputs intensity P9, P8
0x14
0x15
Outputs intensity P11, P10
0x15
0x16
Outputs intensity P13, P12
0x16
0x17
Outputs intensity P15, P14
0x17
0x10
相关PDF资料 |
PDF描述 |
|---|---|
| MAX7314AEG+ | IC I/O EXPANDER I2C 16B 24QSOP |
| MAX7313AEG+ | IC I/O EXPANDER I2C 16B 24QSOP |
| MAX7318ATG+ | IC I/O EXPANDER I2C 16B 24TQFN |
| MAX7312AAG+ | IC I/O EXPANDER I2C 16B 24SSOP |
| MAX7313ATG+ | IC I/O EXPANDER I2C 16B 24TQFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX7314ATG+ | 功能描述:外围驱动器与原件 - PCI 18-Port GPIO RoHS:否 制造商:PLX Technology 工作电源电压: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:FCBGA-1156 封装:Tray |
| MAX7314ATG+T | 功能描述:接口-I/O扩展器 18-Port GPIO RoHS:否 制造商:NXP Semiconductors 逻辑系列: 输入/输出端数量: 最大工作频率:100 kHz 工作电源电压:1.65 V to 5.5 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:HVQFN-16 封装:Reel |
| MAX7314ATG-T | 功能描述:外围驱动器与原件 - PCI RoHS:否 制造商:PLX Technology 工作电源电压: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:FCBGA-1156 封装:Tray |
| MAX7314EVKIT+ | 功能描述:外围驱动器与原件 - PCI Evaluation Kit for the MAX7314 RoHS:否 制造商:PLX Technology 工作电源电压: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:FCBGA-1156 封装:Tray |
| MAX7315 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:8-Port I/O Expander with LED Intensity Control and Interrupt |
发布紧急采购，3分钟左右您将得到回复。