參數(shù)資料
型號(hào): MCP7940MT-I/MS
廠商: Microchip Technology
文件頁(yè)數(shù): 11/19頁(yè)
文件大?。?/td> 0K
描述: IC RTCC I2C 64B SRAM 8-MSOP
標(biāo)準(zhǔn)包裝: 2,500
類型: 時(shí)鐘/日歷
特點(diǎn): 警報(bào)器,閏年,方波輸出,SRAM
存儲(chǔ)容量: 64B
時(shí)間格式: HH:MM:SS(12/24 小時(shí))
數(shù)據(jù)格式: YY-MM-DD-dd
接口: I²C,2 線串口
電源電壓: 1.8 V ~ 5.5 V
工作溫度: -40°C ~ 85°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)
MCP4901/4911/4921
DS22248A-page 24
2010 Microchip Technology Inc.
REGISTER 5-1:
WRITE COMMAND REGISTER FOR MCP4921 (12-BIT DAC)
REGISTER 5-2:
WRITE COMMAND REGISTER FOR MCP4911 (10-BIT DAC)
REGISTER 5-3:
WRITE COMMAND REGISTER FOR MCP4901 (8-BIT DAC)
Where:
W-x
W-0
W-x
0BUF
GA
SHDN
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
bit 15
bit 0
W-x
W-0
W-x
0BUF
GA
SHDN
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
x
bit 15
bit 0
W-x
W-0
W-x
0BUF
GA
SHDN
D7
D6
D5
D4
D3
D2
D1
D0
x
xx
x
bit 15
bit 0
bit 15
0
=
Write to DAC register
1
=
Ignore this command
bit 14
BUF: VREF Input Buffer Control bit
1
=
Buffered
0
=
Unbuffered
bit 13
GA: Output Gain Selection bit
1
=1x (VOUT = VREF * D/4096)
0
=2x (VOUT = 2 * VREF * D/4096)
bit 12
SHDN: Output Shutdown Control bit
1
=
Active mode operation. VOUT is available.
0
=
Shutdown the device. Analog output is not available. VOUT pin is connected to 500 k
typical)
bit 11-0
D11:D0: DAC Input Data bits. Bit x is ignored.
Legend
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
1 = bit is set
0 = bit is cleared
x = bit is unknown
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