M48T35Y-70PC1 Real-Time Clock (RTC) ICs by STMicroelectronics

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

Status: Active
Series: M48T35Y
RoHS: Compliant
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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 CAPHAT ™ houses 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”.

Prices starting from US$20.53


Distributor Starting From Stock
Logo for element14 element14 US$30.63
175
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Logo for Farnell Farnell US$26.63
175
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Logo for Distrelec Distrelec US$30.91
26
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Logo for Newark Electronics Newark Electronics US$26.28
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Logo for Future Electronics Future Electronics US$22.91
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Logo for Avnet America Avnet America US$20.53
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Features

Integrated, ultra low power SRAM, real-time clock, power-fail control circuit and battery
BYTEWIDE™RAM-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
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 CAPHAT™DIP 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
Lead-free second level interconnect

Alternative Descriptions

SRAM TIMEKEEPER 256K, 48T35, DIP28 | Farnell
Real-Time clock,256kb,M48T35Y-70PC1 | RS
ST NV-RAM 32 k x 8 Bit PCDIP-28 | Distrelec
Rtc - Parallel Interface (Timekeepers) Rohs Compliant: Yes |Stmicroelectronics M48T35Y-70PC1 | Newark Electronics
M48T35Y Series 256 Kb (32 K x 8) 5 V 70 ns Timekeeper« SRAM - PCDIP-28 | Future Electronics
Real Time Clock Parallel 32KByte 28-Pin PCDIP Tube | Avnet America


Frequently Asked Questions

Where can I find additional details, specifications and documents for a M48T35Y-70PC1?

Additional datasheets, footprints and schematics for M48T35Y-70PC1 are listed on our Part Details page. You can also find images and similar parts to M48T35Y-70PC1 on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for M48T35Y-70PC1 on our Product Comparison page. Access via the 'View Pricing & Stock' button to view M48T35Y-70PC1 price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does M48T35Y-70PC1 fall under?

The M48T35Y-70PC1 is listed under Clocks and Timers > Real-Time Clock (RTC) ICs > RTC - Parallel Interface (Timekeepers).

Can I view similar or alternative parts?

You can view similar parts to M48T35Y-70PC1 when available in the RTC - Parallel Interface (Timekeepers) range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the M48T35Y-70PC1 you can contact the distributor directly for product support, shipping queries etc.

Is the M48T35Y-70PC1 RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by STMicroelectronics.

Which authorised distributors for M48T35Y-70PC1 have stock available?

Authorised distributors including element14, Farnell, RS, Distrelec and Newark Electronics have stock available or on a lead time for M48T35Y-70PC1.

How do I check stock and lead times for all distributors?

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