参数资料
型号: MCP4461-502E/ST
厂商: Microchip Technology
文件页数: 56/100页
文件大小: 0K
描述: IC POT 8BIT QUAD NONV 5K 20TSSOP
标准包装: 74
接片: 257
电阻(欧姆): 5k
电路数: 4
温度系数: 标准值 150 ppm/°C
存储器类型: 非易失
接口: I²C(设备位址)
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: 20-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 20-TSSOP
包装: 管件
2010 Microchip Technology Inc.
DS22265A-page 59
MCP444X/446X
FIGURE 6-11:
General Call Formats.
0
00 0
S
0 000
X
XXXX
A
XX0A P
General Call Address
Second Byte
“7-bit Command”
Reserved 7-bit Commands (By I2C Specification - Philips # 9398 393 40011, Ver. 2.1 January 2000)
‘0000 011’
b - Reset and write programmable part of slave address by hardware.
‘0000 010’
b - Write programmable part of slave address by hardware.
‘0000 000’
b - NOT Allowed
MCP44XX 7-bit Commands
‘1000 01x’
b - Increment Wiper 0 Register.
‘1001 01x’
b - Increment Wiper 1 Register.
The Following is a Microchip Extension to this General Call Format
0
00 0
S
0 000
X
XXXX
AX d 0 A
General Call Address
Second Byte
“7-bit Command”
MCP44XX 7-bit Commands
‘1000 00d’
b - Write Next Byte (Third Byte) to Volatile Wiper 0 Register.
‘1001 00d’
b - Write Next Byte (Third Byte) to Volatile Wiper 1 Register.
d
dddd
ddd A P
Third Byte
The Following is a “Hardware General Call” Format
0
00 0
S0 0 0 0
X
XXXX
A
XX1A
General Call Address
Second Byte
“7-bit Command”
X
XXXX
XXX AP
n occurrences of (Data + A)
This indicates a “Hardware General Call”
MCP44XX will ignore this byte and
all following bytes (and A), until
‘1000 10x’b - Decrement Wiper 0 Register.
‘1001 10x’
b - Decrement Wiper 1 Register.
‘1100 00d’
b - Write Next Byte (Third Byte) to TCON Register.
a Stop bit (P) is encountered.
“0” for General Call Command
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