M48T35

量産中
Design Win

5 V, 256 Kbit (32 Kb x 8) TIMEKEEPER® SRAM

Download datasheet

製品概要

概要

The M48T35/Y TIMEKEEPER®RAM is a 32 Kb x 8 non-volatile static RAM and real-time clock. The monolithic chip is available in two special packages to provide a highly integrated battery-backed memory and real-time clock solution.

The M48T35/Y is a non-volatile pin and function equivalent to any JEDEC standard 32 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.

The 28-pin, 600 mil DIP CAPHAThouses the M48T35/Y silicon with a quartz crystal and a long life lithium button cell in a single package.

The 28-pin, 330 mil SOIC 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 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/crystal packages are shipped separately in plastic anti-static tubes or in tape & reel form.

For the 28-lead SOIC, the battery/crystal package (e.g., SNAPHAT) part number is “M4T28-BR12SH”.

  • 特徴

    • Integrated, ultra low power SRAM, real-time clock, power-fail control circuit and battery
    • BYTEWIDERAM-like clock access
    • BCD coded year, month, day, date, hours, minutes, and seconds
    • Frequency test output for real-time clock
    • Automatic power-fail chip deselect and WRITE protection
    • WRITE protect voltages VPFD= power-fail deselect voltage):
      • M48T35: VCC= 4.75 to 5.5 V; 4.5 V ≤ VPFD≤ 4.75 V
      • M48T35Y: VCC= 4.5 to 5.5 V; 4.2 V ≤ VPFD≤ 4.5 V
    • Self-contained battery and crystal in the CAPHATDIP package
    • SOIC package provides direct connection for a SNAPHAT® housing containing the battery and crystal
    • SNAPHAT® housing (battery and crystal) is replaceable
    • Pin and function compatible with JEDEC standard 32 Kb x 8 SRAMs
    • RoHS compliant
      • Lead-free second level interconnect

回路ダイアグラム

EDAシンボル / フットプリント / 3Dモデル

STMicroelectronics - M48T35

Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.

Please select one model supplier :

Symbols

EDAシンボル

Footprints

フットプリント

3D model

3Dモデル

品質 & 信頼性

製品型番 マーケティング・ステータス パッケージ グレード RoHSコンプライアンスグレード 材料宣誓書**
M48T35-70PC1
量産中
PDIP 28 .7 インダストリアル Ecopack2

M48T35-70PC1

Package:

PDIP 28 .7

Material Declaration**:

Marketing Status

量産中

Package

PDIP 28 .7

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) st.comで提供している材料宣誓書は、パッケージ・ファミリ内で最も一般的に使用されているパッケージに基づく汎用ドキュメントの場合があります。そのため、特定の製品では100%正確ではない可能性があります。特定の製品情報については、セールスサポートまでお問い合わせください

サンプル & 購入

Swipe or click the button to explore more details Don't show this again
製品型番
製品ステータス
Budgetary Price (US$)*/Qty
STから購入
Order from distributors
パッケージ
梱包タイプ
RoHS
Country of Origin
ECCN (US)
ECCN (EU)
Operating temperature (°C)
最小
最大
M48T35-70PC1
Available at distributors

販売代理店在庫 M48T35-70PC1

販売代理店
地域 在庫 最小発注数量 パートナー企業リンク

販売代理店在庫データ:

販売代理店に在庫がない場合は、STのセールス・オフィスまでお問い合わせください

M48T35-70PC1 量産中

Budgetary Price (US$)*/Qty:
-
パッケージ:
梱包タイプ:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

製品型番:

M48T35-70PC1

Operating Temperature (°C)

最小:

最大:

販売代理店

販売代理店在庫データ:

Swipe or click the button to explore more details Don't show this again

(*)概算用の参考価格(US$)です。現地通貨でのお見積りについては、STのセールス・オフィスまたは販売代理店までお問い合わせください。