M48T37Y

批量生产

5.0或3.3 V, 256 Kbit(32 Kbit x 8)TIMEKEEPER® SRAM

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概述
Online design
样片和购买
解决方案
文件
CAD资源
工具与软件
质量与可靠性
Partner products
Sales Briefcase

产品概述

描述

The M48T37Y/V TIMEKEEPER®RAM is a 32 Kb x 8 non-volatile static RAM and real-time clock. The monolithic chip is available in a special package which provides a highly integrated battery-backed memory and real-time clock solution. The 44-lead, 330 mil SOIC package provides sockets with gold-plated contacts at both ends for direct connection to a separate SNAPHAT housing containing the battery and crystal. The unique design allows the SNAPHAT®battery/crystal package to be mounted on top of the SOIC package after the completion of the surface mount process.
Insertion of the SNAPHAT housing after reflow prevents potential battery and crystal damage due to the high temperatures required for device surface-mounting. The SNAPHAT housing is keyed to prevent reverse insertion.
The SOIC and battery packages are shipped separately in plastic anti-static tubes or in tape & reel form. For the 44-lead SOIC, the battery/crystal package (e.g., SNAPHAT) part number is “M4T28-BR12SH” or “M4T32-BR12SH”.
  • 所有功能

    • Integrated ultra low power SRAM, real-time clock, power-fail control circuit, and battery
    • Frequency test output for real-time clock software calibration
    • Automatic power-fail chip deselect and WRITE protection
    • Watchdog timer
    • WRITE protect voltage (VPFD= Power-fail deselect voltage):
      • M48T37Y: VCC= 4.5 to 5.5 V 4.2 V ≤ VPFD≤ 4.5 V
      • M48T37V: VCC= 3.0 to 3.6 V 2.7 V ≤ VPFD≤ 3.0 V
    • Packaging includes a 44-lead SOIC and SNAPHAT®top (to be ordered separately)
    • SOIC package provides direct connection for a SNAPHAT®top which contains the battery and crystal
    • Microprocessor power-on reset (valid even during battery backup mode)
    • Programmable alarm output active in the battery backup mode
    • Battery low flag
    • RoHS compliant
      • Lead-free second level interconnect

电路原理图

EDA符号、封装和3D模型

STMicroelectronics - M48T37Y

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Symbols

符号

Footprints

封装

3D model

3D模型

质量与可靠性

产品型号 Marketing Status 封装 等级规格 符合RoHS级别 材料声明**
M48T37Y-70MH1F
批量生产
SO-44 工业 Ecopack1

M48T37Y-70MH1F

Package:

SO-44

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

SO-44

Grade

Industrial

RoHS Compliance Grade

Ecopack1

(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此,它们可能不是100%适用于特定的设备。有关特定设备的信息,请联系 销售支持

样片和购买

产品型号
从分销商订购
从ST订购
供货状态
ECCN (US)
ECCN (EU)
包装类型
封装
温度(ºC) Country of Origin
Budgetary Price (US$)*/Qty
最小值
最大值
M48T37Y-70MH1F Available at 1 distributors

经销商的可用性M48T37Y-70MH1F

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 496 1 Buy from Distributor

代理商库存报告日期: 2021-11-27

代理商名称

DIGIKEY

库存

496

Min.Order

1

地区

WORLDWIDE Buy from Distributor

代理商库存报告日期: 2021-11-27

Buy Direct
批量生产
EAR99 NEC Tape And Reel SO-44 0 70 MALAYSIA 12.2881 / 1k

M48T37Y-70MH1F

供货状态

批量生产

ECCN (US)

EAR99

经销商的可用性M48T37Y-70MH1F

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 496 1 Buy from Distributor

代理商库存报告日期: 2021-11-27

代理商名称

DIGIKEY

库存

496

Min.Order

1

地区

WORLDWIDE Buy from Distributor

代理商库存报告日期: 2021-11-27

ECCN (EU)

NEC

包装类型

Tape And Reel

封装

SO-44

Operating Temperature (°C)

(最小值)

0

(最大值)

70

Country of Origin

MALAYSIA

(*) 建议转售单价(美元)仅用于预算用途。如需以当地货币计价的报价,请联系您当地的 ST销售办事处 或我们的 经销商