参数资料
| 型号： | MCP7940MT-I/SN |
| 厂商： | Microchip Technology |
| 文件页数： | 1/19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) |
2012 Microchip Technology Inc.
Preliminary
DS22292A-page 1
MCP7940M
Device Selection Table
Features:
Real-Time Clock/Calendar (RTCC):
- Hours, Minutes, Seconds, Day of Week, Day,
Month and Year
- Dual alarm with single output
On-Chip Digital Trimming/Calibration:
- Range -127 to +127 ppm
- Resolution 1 ppm
Programmable Open-Drain Output Control:
- CLKOUT with 4 selectable frequencies
- Alarm output
64 Bytes SRAM
Low-Power CMOS Technology:
- Dynamic Current: 400
A max write
100 kHz and 400 kHz Compatibility
ESD Protection >4,000V
Packages include 8-Lead SOIC, TSSOP, 2x3
TDFN, MSOP and PDIP
Pb-Free and RoHS Compliant
Temperature Ranges:
- Industrial (I): -40°C to +85°C
Description:
The MCP7940M series of low-power Real-Time Clocks
(RTC) uses digital timing compensation for an accurate
clock/calendar and a programmable output control for
versatility. Using a low-cost 32.768 kHz crystal, it tracks
time
using
several
internal
registers.
For
communication, the MCP7940M uses the I2C bus.
The clock/calendar automatically adjusts for months
with fewer than 31 days, including corrections for
leap years. The clock operates in either the 24-hour
or 12-hour format with an AM/PM indicator and
settable alarm(s) to the second, minute, hour, day of
the week, date or month. Using the programmable
CLKOUT, frequencies of 32.768, 8.192 and 4.096
kHz and 1 Hz can be generated from the external
crystal.
The RTC series of devices are available in the standard
8-lead SOIC, TSSOP, MSOP, PDIP and 2x3 TDFN
packages.
Package Types
Part Number
SRAM
(Bytes)
MCP7940M
64
X1
X2
NC
VSS
1
2
3
4
8
7
6
5
VCC
MFP
SCL
SDA
PDIP
X1
X2
NC
VSS
VCC
MFP
SCL
SDA
1
2
3
4
8
7
6
5
MSOP
SOIC, TSSOP
X1
X2
NC
VSS
1
2
3
4
8
7
6
5
VCC
MFP
SCL
SDA
TDFN
X1
X2
NC
VSS
MFP
SCL
SDA
VCC
8
7
6
5
1
2
3
4
Low-Cost I2C Real-Time Clock/Calendar with SRAM
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| MCP7940N-E/MNY | 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-E/MS | 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 8MSOP |
| 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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