參數(shù)資料
型號(hào)： MCP4561T-503E/MS
廠商： Microchip Technology
文件頁(yè)數(shù)： 61/92頁(yè)
文件大?。?/td> 0K
描述： IC POT DGTL 50K SGL 8-MSOP
標(biāo)準(zhǔn)包裝： 2,500
接片： 257
電阻（歐姆）： 50k
電路數(shù)： 1
溫度系數(shù)： 標(biāo)準(zhǔn)值 150 ppm/°C
存儲(chǔ)器類型： 非易失
接口： I²C（設(shè)備位址）
電源電壓： 2.7 V ~ 5.5 V
工作溫度： -40°C ~ 125°C
安裝類型： 表面貼裝
封裝/外殼： 8-TSSOP，8-MSOP（0.118"，3.00mm 寬）
供應(yīng)商設(shè)備封裝： 8-MSOP
包裝： 帶卷 (TR)
MCP454X/456X/464X/466X
DS22107A-page 64
2008 Microchip Technology Inc.
7.7
Decrement Wiper
Normal and High Voltage
The Decrement Command provide a quick and easy
method to modify the potentiometer’s wiper by -1 with
minimal overhead. The Decrement Command will only
function on the volatile wiper setting memory locations
00h and 01h. Decrement Commands to Non-Volatile
addresses will be ignored and will generate an A bit.
When executing a Decrement Command, the volatile
wiper setting will be altered from n to n-1 for each
Decrement
Command
received.
The
value
will
decrement down to 000h min. If multiple Decrement
Commands are received after the value has reached
000h, the value will not be decremented further.
Table 7-5 shows the Increment Command versus the
current volatile wiper value.
The Decrement Command will most commonly be
performed on the Volatile Wiper locations until a
desired condition is met. The value in the Volatile Wiper
register would need to be read using a Read operation
in order to write the new setting to the corresponding
Non-Volatile wiper memory using a Write operation.
The MCP4XXX is responsible for generating the A bits.
Refer to Figure 7-8 for the Decrement Command
sequence. The sequence is terminated by the Stop
condition. So when executing a continuous command
string, The Increment command can be followed by any
other valid command. this means that writes do not
need to be to the same volatile memory address.
The advantage of using an Decrement Command
instead of a read-modify-write series of commands is
speed and simplicity. The wiper will transition after each
Command Acknowledge when accessing the volatile
wiper registers.
TABLE 7-5:
DECREMENT OPERATION VS.
VOLATILE WIPER VALUE
7.7.1
THE HIGH VOLTAGE COMMAND
(HVC) SIGNAL
The
High
Voltage
Command
(HVC)
signal
is
multiplexed with Address 0 (A0) and is used to indicate
that the command, or sequence of commands, are in
the High Voltage mode. Signals > VIHH (~8.5V) on the
HVC/A0 pin puts MCP45XX/46XX devices into High
Voltage mode. High Voltage commands allow the
device’s WiperLock Technology and write protect
features to be enabled and disabled.
The HVC pin has an internal resistor connection to the
MCP45XX/46XXs internal VDD signal.
FIGURE 7-8:
I2C Decrement Command Sequence.
Note:
Table 7-2 shows the valid addresses for
the Decrement Wiper command. Other
addresses are invalid.
Note:
The command sequence can go from an
increment to any other valid command for
the
specified
address.
Issuing
an
increment or decrement to a non-volatile
location will cause an error condition (A
will be generated).
Current Wiper
Setting
Wiper (W)
Properties
Decrement
Command
Operates?
7-bit
Pot
8-bit
Pot
3FFh
081h
3FFh
101h
Reserved
(Full-Scale (W = A))
No
080h
100h
Full-Scale (W = A)
Yes
07Fh
041h
0FFh
081
W = N
040h
080h
W = N (Mid-Scale)
Yes
03Fh
001h
07Fh
001
W = N
000h
Zero Scale (W = B) No
Note:
There is a required delay after the HVC pin
is driven to the VIHH level to the 1st edge
of the SCL pin.
Control Byte
DECR Command (n-1)
DECR Command (n-2)
1
01
0
SA2 A1 A0 0
1
AD AD AD AD
A0 X
X
A
1
AD AD AD AD
0X
X A P (2)
0
1
2
3
432
1
Fixed
Address
Variable
Address
Device
Memory
Address
Command
Write bit
Note 1:
Decrement Command (DECR) only functions when accessing the volatile wiper
registers (AD3:AD0 = 0h and 1h).
2:
This command sequence does not need to terminate (using the Stop bit) and can
change to any other desired command sequence (INCR, Read, or Write).
相關(guān)PDF資料
PDF描述
MS3456W20-7SW CONN PLUG 8POS STRAIGHT W/SCKT
VE-BN1-IU-F2 CONVERTER MOD DC/DC 12V 200W
VE-BN0-IU-F4 CONVERTER MOD DC/DC 5V 200W
MCP4561T-103E/MS IC POT DGTL 10K SGL 8-MSOP
VI-2N4-MY-F3 CONVERTER MOD DC/DC 48V 50W
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MCP4562-103E/MS 功能描述:數(shù)字電位計(jì) IC Sngl 8B NV I2C Rheo RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲(chǔ)器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel
MCP4562-104E/MS 功能描述:數(shù)字電位計(jì) IC Sngl 8B NV I2C Rheo RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲(chǔ)器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel
MCP4562-104E/MS 制造商:Microchip Technology Inc 功能描述:; LEADED PROCESS COMPATIBLE:YES; PEAK RE
MCP4562-502E/MS 功能描述:數(shù)字電位計(jì) IC Sngl 8B NV I2C Rheo RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲(chǔ)器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel
MCP4562-502E/MS 制造商:Microchip Technology Inc 功能描述:; LEADED PROCESS COMPATIBLE:YES; PEAK RE
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*