参数资料
型号: MAX14830ETM+T
厂商: Maxim Integrated Products
文件页数: 58/68页
文件大小: 0K
描述: IC UART
产品培训模块: Obsolescence Mitigation Program
标准包装: 2,500
系列: *
61
Maxim Integrated
Quad Serial UART with 128-Word FIFOs
MAX14830
Bit Transfer
One data bit is transferred during each SCL clock cycle.
The data on SDA must remain stable during the high
period of the SCL clock pulse. Changes in SDA while
SCL is high and stable are considered control signals
(see the START, STOP, and Repeated START Conditions
section). Both SDA and SCL remain high when the bus
is not active.
Single-Byte Write
With this operation the master sends an address and one
or two data bytes to the slave device (Figure 22). The
write byte procedure is the following:
1) The master sends a START condition.
2) The master sends the 7-bit slave ID plus a write bit (low).
3) The addressed slave asserts an ACK on the data line.
4) The master sends the 8-bit register address.
5) The active slave asserts an ACK on the data line only
if the address is valid (NAK if not).
6) The master sends an 8-bit data byte.
7) The slave asserts an ACK on the data line.
8) The master generates a STOP condition.
Burst Write
With this operation the master sends an address and
multiple data bytes to the slave device (Figure 23). The
burst write procedure is as follows:
1) The master sends a START condition.
2) The master sends the 7-bit slave ID plus a write bit (low).
3) The addressed slave asserts an ACK on the data line.
4) The master sends the 8-bit register address.
5) The slave asserts an ACK on the data line only if the
address is valid (NAK if not).
6) The master sends 8 bits of data.
7) The slave asserts an ACK on the data line.
8) Repeat steps 6 and 7 as needed.
9) The master generates a STOP condition.
Figure 22. Write Byte Sequence
Figure 23. Burst Write Sequence
S
P
DEVICE SLAVE ADDRESS - W
A
8 DATA BITS
FROM MASTER TO STAVE
WRITE SINGLE BYTE
FROM SLAVE TO MASTER
A
REGISTER ADDRESS
A
S
DEVICE SLAVE ADDRESS - W
A
8 DATA BITS - 1
BURST WRITE
A
REGISTER ADDRESS
A
8 DATA BITS - N
A
8 DATA BITS - 2
A
FROM MASTER TO STAVE
FROM SLAVE TO MASTER
P
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MAX14830EVKIT# 功能描述:界面开发工具 MAX14830 Eval Kit 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
MAX14830EVKIT+ 制造商:Maxim Integrated Products 功能描述:QUAD UART EV-KIT WITH IO-LINK AND MULTIPROTOCOL - Boxed Product (Development Kits)
MAX1483C/D+ 功能描述:RS-485接口IC low-power transceivers for RS-485 and RS-422 communication RoHS:否 制造商:Texas Instruments 数据速率:250 Kbps 工作电源电压:3.3 V 电源电流:750 uA 工作温度范围:- 40 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube
MAX1483CPA 功能描述:RS-485接口IC RoHS:否 制造商:Texas Instruments 数据速率:250 Kbps 工作电源电压:3.3 V 电源电流:750 uA 工作温度范围:- 40 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube
MAX1483CPA+ 功能描述:RS-422/RS-485 接口 IC Slew-Rate-Limited RS-485 Transceivers RoHS:否 制造商:Maxim Integrated 数据速率:1136 Kbps 工作电源电压:3 V to 5.5 V 电源电流:5.9 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-28 封装:Tube