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| 型号： | MCP79512T-I/MN |
| 厂商： | Microchip Technology |
| 文件页数： | 10/17页 |
| 文件大小： | 0K |
| 描述： | IC RTCC SPI 64B SRAM 10-TDFN |
| 标准包装： | 3,300 |
| 类型： | 时钟/日历 |
| 特点： | 警报器，EEPROM，闰年，方波输出，SRAM，唯一 ID |
| 存储容量： | 64B |
| 时间格式： | HH:MM:SS:hh（12/24 小时） |
| 数据格式： | YY-MM-DD-dd |
| 接口： | SPI |
| 电源电压： | 1.8 V ~ 3.6 V |
| 电压 - 电源，电池： | 1.3 V ~ 3.6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-WFDFN 裸露焊盘 |
| 供应商设备封装： | 10-TDFN（3x3） |
| 包装： | 带卷 (TR) |
MCP7952X/MCP7951X
DS22300A-page 2
Preliminary
2012 Microchip Technology Inc.
Description:
The MCP795XX is a low-power Real-Time Clock/
Calendar (RTCC) that uses digital trimming compen-
sation for an accurate clock/calendar, an interrupt out-
put to support alarms and events, a power sense
circuit that automatically switches to the backup sup-
ply, nonvolatile memory for safe data storage and sev-
eral
enhanced
features
that
support
system
requirements.
Along with a low-cost 32,768 kHz crystal, this RTCC
tracks time using several internal registers and then
communicates the data over a 5 MHz SPI bus that is
fast enough to support a programmable millisecond
alarm.
The device is fully accessible through the serial inter-
face, while VCC is between 1.8V and 3.6V, but can
operate down to 1.3V through the backup supply con-
nected to the VBAT input for timekeeping and SRAM
retention only.
As part of the power sense circuit, a time saver
function is implemented to store the time when main
power is lost and again, when power is restored to log
the duration of a power failure.
Along with the on-board serial EEPROM and battery-
backed SRAM, a 128-bit protected space is available
for a unique ID. This space can be ordered
preprogrammed with a MAC address, or blank for the
user to program.
This clock/calendar automatically adjusts for months
with fewer than 31 days including corrections for leap
years. The clock operates in either 24-hour or 12-hour
format with AM/PM indicator and settable alarm(s).
Using the external crystal, the MFP pin can be set to
generate a number of output frequencies.
FIGURE 1-1:
BLOCK DIAGRAM
X1
X2
VBAT
CS
VSS
VCC
MFP
SCK
SO
SI
OSC
CLKOUT Divider
SPI
EEPROM
SRAM
TIME-STAMP
ID
ALAR
M
S
V
BA
T
SW
IT
C
H
OVER
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MCP7951X | 制造商:MAS 制造商全称:MAS 功能描述:3V SPI Real-Time Clock Calendar with Battery Switchover |
| MCP79520 | 制造商:MAS 制造商全称:MAS 功能描述:3V SPI Real-Time Clock Calendar with Battery Switchover |
| MCP79520-I/MS | 功能描述:实时时钟 SPI GP RTCC 2Kb EE 64B SRAM ID RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| MCP79520T-I/MN | 功能描述:实时时钟 SPI GP RTCC 2Kb EE 64B SRAM ID RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| MCP79520T-I/MS | 功能描述:实时时钟 SPI GP RTCC 2Kb EE 64B SRAM ID RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
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