5.0 V, 16 Kbit (2 Kb x 8) TIMEKEEPER® SRAM

Download datasheet

This product is in stock in our e-store

Sample and buy
概观
工具与软件
资源
解决方案
质量与可靠性
Sales Briefcase
eDesignSuite
开始
样片和购买
Partner products
  • The M48T02/12 TIMEKEEPER®RAM is a 2 Kb x 8 non-volatile static RAM and real-time clock which is pin and functional compatible with the DS1642.

    A special 24-pin, 600 mil DIP CAPHATpackage houses the M48T02/12 silicon with a quartz crystal and a long life lithium button cell to form a highly integrated battery-backed memory and real-time clock solution.
    The M48T02/12 button cell has sufficient capacity and storage life to maintain data and clock functionality for an accumulated time period of at least 10 years in the absence of power over the operating temperature range.
    The M48T02/12 is a non-volatile pin and function equivalent to any JEDEC standard 2 Kb x 8 SRAM. It also easily fits into many ROM, EPROM, and EEPROM sockets, providing the non-volatility of PROMs without any requirement for special WRITE timing or limitations on the number of WRITEs that can be performed.

    主要特性

    • Integrated, ultra low power SRAM, real-time clock, and power-fail control circuit
    • BYTEWIDERAM-like clock access
    • BCD coded year, month, day, date, hours, minutes, and seconds
    • Typical clock accuracy of ±1 minute a month, at 25 °C
    • Software controlled clock calibration for high accuracy applications
    • Automatic power-fail chip deselect and WRITE protection
    • WRITE protect voltages (VPFD= power-fail deselect voltage):
      • M48T02: VCC= 4.75 to 5.5 V; 4.5 V ≤ VPFD≤ 4.75 V
      • M48T12: VCC= 4.5 to 5.5 V; 4.2 V ≤ VPFD≤ 4.5 V
    • Self-contained battery and crystal in the CAPHATDIP package
    • Pin and function compatible with JEDEC standard 2 K x 8 SRAMs
    • RoHS compliant
      • Lead-free second level interconnect

电路原理图

下载 下载

样片和购买

型号
Package
Packing Type
Marketing Status
Quantity
ECCN (US)
Country of Origin
Order from Distributors
Order from ST
M48T12-70PC1 PDIP 24 .7 Tube
Active
1000 EAR99 MALAYSIA Check Availability

Distributor availability ofM48T12-70PC1

代理商名称
地区 库存 最小订购量 Third party link
RS COMPONENTS EUROPE 145 1 Order Now

代理商库存报告日期: 2019-06-10

代理商名称

RS COMPONENTS

库存

145

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-06-10

M48T12-150PC1 PDIP 24 .7 Tube
Active
1000 EAR99 MALAYSIA Check Availability

Distributor availability ofM48T12-150PC1

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 660 1 Order Now
RS COMPONENTS EUROPE 170 1 Order Now
FUTURE WORLDWIDE 742 14 Order Now
ARROW EUROPE 15 0 Order Now
Newark Element14 AMERICA 412 0 Order Now
MOUSER WORLDWIDE 286 1 Order Now

代理商库存报告日期: 2019-06-13

代理商名称

DIGIKEY

库存

660

Min.Order

1

地区

WORLDWIDE Order Now

RS COMPONENTS

库存

170

Min.Order

1

地区

EUROPE Order Now

FUTURE

库存

742

Min.Order

14

地区

WORLDWIDE Order Now

ARROW

库存

15

Min.Order

0

地区

EUROPE Order Now

Newark Element14

库存

412

Min.Order

0

地区

AMERICA Order Now

MOUSER

库存

286

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-06-13

Buy now

M48T12-70PC1

Package

PDIP 24 .7

Packing Type

Tube

Distributor availability ofM48T12-70PC1

代理商名称
地区 库存 最小订购量 Third party link
RS COMPONENTS EUROPE 145 1 Order Now

代理商库存报告日期: 2019-06-10

代理商名称

RS COMPONENTS

库存

145

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-06-10

Marketing Status

Active

Quantity

1000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

M48T12-150PC1

Package

PDIP 24 .7

Packing Type

Tube

Distributor availability ofM48T12-150PC1

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 660 1 Order Now
RS COMPONENTS EUROPE 170 1 Order Now
FUTURE WORLDWIDE 742 14 Order Now
ARROW EUROPE 15 0 Order Now
Newark Element14 AMERICA 412 0 Order Now
MOUSER WORLDWIDE 286 1 Order Now

代理商库存报告日期: 2019-06-13

代理商名称

DIGIKEY

库存

660

Min.Order

1

地区

WORLDWIDE Order Now

RS COMPONENTS

库存

170

Min.Order

1

地区

EUROPE Order Now

FUTURE

库存

742

Min.Order

14

地区

WORLDWIDE Order Now

ARROW

库存

15

Min.Order

0

地区

EUROPE Order Now

Newark Element14

库存

412

Min.Order

0

地区

AMERICA Order Now

MOUSER

库存

286

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-06-13

Marketing Status

Active

Quantity

1000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Recommended for you

00 Files selected for download

技术文档

    • Description 版本 文档大小 Action
      DS0493
      5.0 V, 16 Kbit (2 Kb X 8) TIMEKEEPER® SRAM
      9.2
      374.13 KB
      PDF
      DS0493

      5.0 V, 16 Kbit (2 Kb X 8) TIMEKEEPER® SRAM

    • Description 版本 文档大小 Action
      AN1011
      ST NVRAM 和实时时钟(RTC)产品中使用的电池技术
      4.0
      416.58 KB
      PDF
      AN934
      How to use the digital calibration feature in TIMEKEEPER® and serial real-time clock (RTC) products
      4.1
      123.42 KB
      PDF
      AN923
      Managing century information using serial real-time clocks and TIMEKEEPER® NVRAMs
      4.0
      142.23 KB
      PDF
      AN1009
      Negative undershoot NVRAM data corruption
      2.0
      82.05 KB
      PDF
      AN1012
      预测NVRAM 和串行RTC 的电池寿命和数据保存期限
      1.0
      813.03 KB
      PDF
      AN925
      Time update in ST's TIMEKEEPER® devices
      2.0
      119.68 KB
      PDF
      AN1011

      ST NVRAM 和实时时钟(RTC)产品中使用的电池技术

      AN934

      How to use the digital calibration feature in TIMEKEEPER® and serial real-time clock (RTC) products

      AN923

      Managing century information using serial real-time clocks and TIMEKEEPER® NVRAMs

      AN1009

      Negative undershoot NVRAM data corruption

      AN1012

      预测NVRAM 和串行RTC 的电池寿命和数据保存期限

      AN925

      Time update in ST's TIMEKEEPER® devices

质量与可靠性

    • Description 版本 文档大小 Action
      Products Underwriter Laboratories (UL) Information 2.1
      163 KB
      PDF

      Products Underwriter Laboratories (UL) Information

型号 Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
M48T12-150PC1
Active
PDIP 24 .7 工业 Ecopack1
M48T12-70PC1
Active
PDIP 24 .7 工业 Ecopack1

M48T12-150PC1

Package:

PDIP 24 .7

Material Declaration**:

PDF XML

Marketing Status

Active

Package

PDIP 24 .7

Grade

Industrial

RoHS Compliance Grade

Ecopack1

M48T12-70PC1

Package:

PDIP 24 .7

Material Declaration**:

PDF XML

Marketing Status

Active

Package

PDIP 24 .7

Grade

Industrial

RoHS Compliance Grade

Ecopack1

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.