参数资料
| 型号： | MCP7940MT-I/SN |
| 厂商： | Microchip Technology |
| 文件页数： | 11/19页 |
| 文件大小： | 0K |
| 描述： | IC RTCC I2C 64B SRAM 8-SOIC |
| 标准包装： | 3,300 |
| 类型： | 时钟/日历 |
| 特点： | 警报器，闰年，方波输出，SRAM |
| 存储容量： | 64B |
| 时间格式： | HH:MM:SS（12/24 小时） |
| 数据格式： | YY-MM-DD-dd |
| 接口： | I²C，2 线串口 |
| 电源电压： | 1.8 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOICN |
| 包装： | 带卷 (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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| MCP7940N | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Low-Cost I2C? Real-Time Clock/Calendar with SRAM and Battery Switchover |
| MCP7940N_13 | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Low-Cost I2Ca?￠ Real-Time Clock/Calendar with SRAM and Battery Switchover |
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| MCP7940N-E/SN | 制造商:Microchip Technology Inc 功能描述:I2C GP RTCC, 64B SRAM, EXT - Rail/Tube 制造商:Microchip Technology Inc 功能描述:IC RTCC 64B SRAM GP I2C 8SOIC 制造商:Microchip Technology Inc 功能描述:I2C GP RTCC, 64B SRAM, EXT, 8 SOIC 3.90mm(.150in) TUBE |
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