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| 型号： | MCP4242T-502E/MF |
| 厂商： | Microchip Technology |
| 文件页数： | 43/88页 |
| 文件大小： | 0K |
| 描述： | IC POT DGTL DUAL 5K RHEO 10DFN |
| 标准包装： | 3,300 |
| 系列： | WiperLock™ |
| 接片： | 129 |
| 电阻（欧姆）： | 5k |
| 电路数： | 2 |
| 温度系数： | 标准值 150 ppm/°C |
| 存储器类型： | 非易失 |
| 接口： | 4 线 SPI（芯片选择） |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-VFDFN 裸露焊盘 |
| 供应商设备封装： | 10-DFN-EP（3x3） |
| 包装： | 带卷 (TR) |
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MCP414X/416X/424X/426X
DS22059B-page 48
2008 Microchip Technology Inc.
7.4
Continuous Commands
The device supports the ability to execute commands
continuously. While the CS pin is in the active state (VIL
or VIHH). Any sequence of valid commands may be
received.
The following example is a valid sequence of events:
1.
CS pin driven active (VIL or VIHH).
2.
Read Command.
3.
Increment Command (Wiper 0).
4.
Increment Command (Wiper 0).
5.
Decrement Command (Wiper 1).
6.
Write Command (Volatile memory).
7.
Write Command (Non-Volatile memory).
8.
CS pin driven inactive (VIH).
TABLE 7-3:
COMMANDS
Note 1:
It is recommended that while the CS pin is
active, only one type of command should
be issued. When changing commands, it
is recommended to take the CS pin
inactive then force it back to the active
state.
2:
It is also recommended that long
command strings should be broken down
into shorter command strings. This
reduces the probability of noise on the
SCK pin corrupting the desired SPI
command string.
Command Name
# of
Bits
Writes
Value in
EEPROM
Operates on
Volatile/
Non-Volatile
memory
High
Voltage
(VIHH) on
CS pin?
Impact on
WiperLock or
Write Protect
Works
when
Wiper is
“locked”?
16-Bits
Yes (1)
Both
—
unlocked (1)
No
16-Bits
—
Both
—
unlocked (1)
No
8-Bits
—
Volatile Only
—
unlocked (1)
No
8-Bits
—
Volatile Only
—
unlocked (1)
No
High Voltage Write Data
16-Bits
Yes
Both
Yes
unchanged
No
High Voltage Read Data
16-Bits
—
Both
Yes
unchanged
Yes
High Voltage Increment Wiper
8-Bits
—
Volatile Only
Yes
unchanged
No
High Voltage Decrement Wiper
8-Bits
—
Volatile Only
Yes
unchanged
No
-
Enable
8-Bits
— (2)
Non-Volatile
Only (2)
Yes
locked/
protected (2)
Yes
-
Disable
8-Bits
— (3)
Non-Volatile
Only (3)
Yes
unlocked/
unprotected (3)
Yes
Note 1:
This command will only complete if wiper is “unlocked” (WiperLock Technology is Disabled).
2:
If the command is executed using address 02h or 03h, then that corresponding wiper is locked or
if with address 0Fh, then Write Protect is enabled.
3:
If the command is executed using with address 02h or 03h, then that corresponding wiper is unlocked or
if with address 0Fh, then Write Protect is disabled.
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| MCP4242T-503E/MF | 功能描述:数字电位计 IC Dual 7B NV SPI 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 |
| MCP4242T-503-E/ML | 功能描述:数字电位计 IC Dual 7B NV SPI 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 |
| MCP4242T-503E/UN | 功能描述:数字电位计 IC Dual 7B NV SPI 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 |
| MCP4242T-503-E/UN | 功能描述:数字电位计 IC Dual, 7bit, NV, SPI, 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 |
| MCP4251-103E/ML | 功能描述:数字电位计 IC Dual 8B V SPI POT 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 |
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