- 您现在的位置：买卖IC网 > PDF目录181825 > MCP4531T-503E/ST DIGITAL POTENTIOMETER, PDSO14 PDF资料下载
参数资料
| 型号： | MCP4531T-503E/ST |
| 元件分类： | 数字电位计 |
| 英文描述： | DIGITAL POTENTIOMETER, PDSO14 |
| 封装： | PLASTIC, TSSOP-14 |
| 文件页数： | 31/88页 |
| 文件大小： | 2310K |
| 代理商： | MCP4531T-503E/ST |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页当前第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页
2008 Microchip Technology Inc.
DS22096A-page 37
MCP453X/455X/463X/465X
4.0
FUNCTIONAL OVERVIEW
This Data Sheet covers a family of thirty-two Digital
Potentiometer and Rheostat devices that will be
referred to as MCP4XXX. The MCP4XX1 devices are
the Potentiometer configuration, while the MCP4XX2
devices are the Rheostat configuration.
As the Device Block Diagram shows, there are four
main functional blocks. These are:
The POR/BOR operation and the Memory Map are
discussed in this section and the Resistor Network and
I2C operation are described in their own sections. The
Device Commands commands are discussed in
4.1
POR/BOR Operation
The Power-on Reset is the case where the device is
having power applied to it starting from the VSS level.
The Brown-out Reset occurs when a device had power
applied to it, and that power (voltage) drops below the
specified range.
The devices RAM retention voltage (VRAM) is lower
than the POR/BOR voltage trip point (VPOR/VBOR). The
maximum VPOR/VBOR voltage is less than 1.8V.
When VPOR/VBOR < VDD < 2.7V, the electrical
performance
may
not
meet
the
data
sheet
specifications. In this region, the device is capable of
incrementing, decrementing, reading and writing to its
volatile memory if the proper serial command is exe-
cuted.
4.1.1
POWER-ON RESET
When the device powers up, the device VDD will cross
the VPOR/VBOR voltage. Once the VDD voltage crosses
the VPOR/VBOR voltage the following happens:
Volatile wiper register is loaded with value in the
corresponding non-volatile wiper register
The TCON register is loaded it’s default value
The device is capable of digital operation
4.1.2
BROWN-OUT RESET
When the device powers down, the device VDD will
cross the VPOR/VBOR voltage.
Once the VDD voltage decreases below the VPOR/VBOR
voltage the Serial Interface is disabled.
If the VDD voltage decreases below the VRAM voltage
the following happens:
Volatile wiper registers may become corrupted
TCON register may become corrupted
As the voltage recovers above the VPOR/VBOR voltage
Serial commands not completed due to a brown-out
condition may cause the volatile memory location to
become corrupted.
4.2
Memory Map
The device memory map supports 16 locations, of
which 3 locations are used. Each location is 9-bits wide
(16x9 bits). This memory space is shown in Table 4-1.
TABLE 4-1:
MEMORY MAP
4.2.1
VOLATILE MEMORY (RAM)
There are four Volatile Memory locations. These are:
Volatile Wiper 0
Volatile Wiper 1
(Dual Resistor Network devices only)
Terminal Control (TCON) Register
Reserved
The volatile memory starts functioning at the RAM
retention voltage (VRAM).
4.2.1.1
Address 05h (Reserved)
This memory location is Reserved and is mapped to
the Status Register of the Non-Volatile MCP45XX/
46XX devices. Since the Non-Volatile devices bits are
not used by the volatile device, this location is
reserved. Reading this address wil result in a value of
1F7h.
Address
Function
Memory Type
00h
Volatile Wiper 0
RAM
01h
Volatile Wiper 1
RAM
02h
Reserved
—
03h
Reserved
—
04h
Volatile TCON Register
RAM
05h
Reserved
RAM
06h - 0Fh Reserved
—
相关PDF资料 |
PDF描述 |
|---|---|
| MCP4531T-503E/UN | DIGITAL POTENTIOMETER, PDSO10 |
| MCP73838T-G8I/UN | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10 |
| MCPC2425D | |
| MCPC2450B | |
| MCPC4890B | |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MCP4532-103E/MS | 功能描述:数字电位计 IC Sngl 7B V I2C Rheo RoHS:否 制造商:Maxim Integrated 电阻:200 Ohms 温度系数:35 PPM / C 容差:25 % POT 数量:Dual 每 POT 分接头:256 弧刷存储器:Volatile 缓冲刷: 数字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作电源电压:1.7 V to 5.5 V 电源电流:27 uA 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-16 封装:Reel |
| MCP4532-104E/MS | 功能描述:数字电位计 IC Sngl 7B V I2C Rheo RoHS:否 制造商:Maxim Integrated 电阻:200 Ohms 温度系数:35 PPM / C 容差:25 % POT 数量:Dual 每 POT 分接头:256 弧刷存储器:Volatile 缓冲刷: 数字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作电源电压:1.7 V to 5.5 V 电源电流:27 uA 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-16 封装:Reel |
| MCP4532-104E/MS | 制造商:Microchip Technology Inc 功能描述:; LEADED PROCESS COMPATIBLE:YES; PEAK RE |
| MCP4532-502E/MS | 功能描述:数字电位计 IC Sngl 7B V I2C Rheo RoHS:否 制造商:Maxim Integrated 电阻:200 Ohms 温度系数:35 PPM / C 容差:25 % POT 数量:Dual 每 POT 分接头:256 弧刷存储器:Volatile 缓冲刷: 数字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作电源电压:1.7 V to 5.5 V 电源电流:27 uA 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-16 封装:Reel |
| MCP4532-502E/MS | 制造商:Microchip Technology Inc 功能描述:; LEADED PROCESS COMPATIBLE:YES; PEAK RE |
发布紧急采购，3分钟左右您将得到回复。