參數(shù)資料
型號(hào): MCP79521T-I/MS
廠商: Microchip Technology
文件頁(yè)數(shù): 1/17頁(yè)
文件大?。?/td> 0K
描述: IC RTCC SPI 64B SRAM 10-MSOP
標(biāo)準(zhǔn)包裝: 2,500
類型: 時(shí)鐘/日歷
特點(diǎn): 警報(bào)器,EEPROM,閏年,方波輸出,SRAM,唯一 ID
存儲(chǔ)容量: 64B
時(shí)間格式: HH:MM:SS:hh(12/24 小時(shí))
數(shù)據(jù)格式: YY-MM-DD-dd
接口: SPI
電源電壓: 1.8 V ~ 3.6 V
電壓 - 電源,電池: 1.3 V ~ 3.6 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 10-TFSOP,10-MSOP(0.118",3.00mm 寬)
供應(yīng)商設(shè)備封裝: 10-MSOP
包裝: 帶卷 (TR)
2012 Microchip Technology Inc.
Preliminary
DS22300A-page 1
MCP7952X/MCP7951X
Device Selection Table
Timekeeping Features:
Real-Time Clock/Calendar:
- Hours, Minutes, Seconds, Hundredth of
Seconds, Day of Week, Month, Year, Leap
Year
Crystal Oscillator requires External 32,768 kHz
Tuning Fork Crystal and Load Capacitors.
Clock Out Function:
- 1Hz, 4.096 kHz, 8.192 kHz, 32.768 kHz
2 Programmable Alarms
Programmable open drain output – Alarm or
Interrupt
On-Chip Digital Trimming/Calibration:
- +/- 255 PPM range in 1 PPM steps
Power-Fail Time-Stamp @ Battery Switchover:
- Logs time when VCC fails and VCC is restored
Low-Power Features:
Wide Operating Voltage:
-VCC: 1.8V to 3.6V
-VBAT: 1.3V to 3.6V
Low Operating Current:
-VCC Standby Current < 1uA @ 3V
-VBAT Timekeeping Current: <700nA @ 1.8V
Automatic Battery Switchover from VCC to VBAT:
- Backup power for timekeeping and SRAM
retention
User Memory:
64-Byte Battery-Backed SRAM
2 Kbit and 1 Kbit EEPROM Memory:
- Software block write-protect (, , or entire
array)
- Write Page mode (up to 8 bytes)
- Endurance: 1M erase/write cycles
128-Bit Unique ID in Protected Area of EEPROM:
- Available blank or preprogrammed
- EUI-48 or EUI-64 MAC address
- Unlock sequence for user programming
Operating Ranges:
SPI Clock Speed up to 5 MHz
Operating Temperature Ranges:
- Industrial (I Temp): -40°C to +85°C.
Packages include 10-Lead MSOP and TDFN
Package Types (not to scale)
Part Number
SRAM
(Bytes)
EEPROM
(Kbits)
Unique ID
MCP79520
64
2
Blank
MCP79510
64
1
Blank
MCP79521
64
2
EUI-48
MCP79511
64
1
EUI-48
MCP79522
64
2
EUI-64
MCP79512
64
1
EUI-64
X1
X2
VBAT
Vcc
MFP
1
2
3
4
M
C
P795
XX
MSOP/TDFN
CS
VSS
SCK
SO
SI
5
6
7
10
9
8
Note:
MCP795XX is used in this document as a
generic part number for the MCP7951X,
MCP7952X devices.
3V SPI Real-Time Clock Calendar with Battery Switchover
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