M48Z128-85PM1

Power-fail data protection
7,441 Effective Inventory

M48Z128-85PM1

Effective Inventory7,441

Power-fail data protection

Quality Assurance

Quality Assurance

All parts procured from our supply chain network undergo a rigorous incoming inspection process. This meticulous inspection ensures that the parts received by our customers are authentic and meet the required standards. Additionally, we maintain detailed records of these inspections to ensure transparency and traceability throughout the supply chain.

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Certification

We have successfully obtained various certification standards and have established our own professional testing laboratory. This ensures that every product we supply to our customers meets the highest quality standards. We adhere to strict testing protocols to maintain the consistency and accuracy of our products. To ensure that our products are original and genuine, we also collaborate with reputable third-party testing facilities to conduct rigorous quality testing. Our commitment to quality extends to meeting industry, legal, regulatory, and ISO 9001:2015 requirements.

Shipping & Payment

Shipping & Payment

About Shipping

We generally ship orders within a few business days through reliable shipping carriers such as FedEx, SF, UPS, or DHL. We also have support for other shipping methods. If you would like to inquire about specific shipping details or costs, please don't hesitate to reach out to us.

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About Payment

We accept various payment methods, including VISA, MasterCard, UnionPay, Western Union, PayPal, and other channels.

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Service & Packaging

Service & Packaging

About After Sales Service

All Parts Extended Quality Guarantee

Initiate the application within 90 days from the shipment date.

Confirm the return or exchange with our staff.

Maintain the goods in their original condition as received.

Lastly, please note that the eligibility for return or exchange of goods is subject to an assessment of the actual condition of the returned items. We will evaluate the received goods before finalizing the return or exchange process. If you have any inquiries or require further assistance regarding returns or exchanges, please don't hesitate to contact us at [email protected]

About packaging

Regarding packaging, our products are carefully packed in anti-static bags to provide ESD anti-static protection. The outer packaging is durable with secure closure. We support various packaging methods such as Tape and Reel, Cut Tape, Tube, or Tray.

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M48Z128-85PM1 DataSheet
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Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!

Rapid Quote

Please submit RFQ for M48Z128-85PM1 or email to us: Email: [email protected], we will contact you in 12 hours.

Details

The M48Z128-85PM1 is a non-volatile static RAM (NVSRAM) manufactured by STMicroelectronics. It features a 128-kilobit (16-kilobyte) capacity with a 5V power supply. The "M" in the part number indicates it's from the M48Z family. It operates within a temperature range of -40°C to +85°C, making it suitable for industrial applications. The "Z" signifies it incorporates a lithium battery to maintain data integrity during power loss. The battery typically has a lifespan of around 10 years. The "85" denotes the access time in nanoseconds, which is the time it takes for data to be retrieved from memory. In this case, it's 85ns. The "PM1" suffix specifies the package type, in this case, a 32-pin DIP (Dual In-line Package).

Key Features

  • 128 Kbit (16K x 8) non-volatile RAM
  • Integrated lithium battery
  • Maximum data retention: 10 years
  • Automatic power-fail detection and switch circuitry
  • On-chip power-on reset and write protection
  • Byte and page write functions

Application

  • Embedded systems
  • Real-time clocks
  • Data logging
  • Security systems
  • Medical devices
  • Automotive applications
  • Industrial control systems
  • Networking equipment
  • Telecommunications devices
  • Consumer electronics

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Product Category ! NVRAM RoHS N
Package / Case PMDIP Interface Type Parallel
Memory Size ! 1 Mbit Organization 128 k x 8
Data Bus Width 8 bit Access Time 85 ns
Supply Voltage - Max 5.5 V Supply Voltage - Min 4.75 V
Operating Supply Current 105 mA Minimum Operating Temperature 0 C
Maximum Operating Temperature ! + 70 C Series M48Z128
Brand STMicroelectronics Height 9.52 mm
Length 43.18 mm Mounting Style Through Hole
Operating Supply Voltage ! 4.75 V to 5.5 V Product Type ! NVRAM
Factory Pack Quantity 12 Subcategory Memory & Data Storage
Type NVSRAM Width 18.8 mm

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

Preliminary Specification M48Z128-85PM1 PDF Download

FAQs

What is M48Z128-85PM1?

The M48Z128-85PM1 is a 128 Kbit (16 Kbit x 8) non-volatile static RAM (NVSRAM) with a built-in real-time clock (RTC) manufactured by STMicroelectronics. It combines the features of a static RAM and a non-volatile memory, making it suitable for applications that require data retention during power loss, such as industrial automation, gaming, and automotive systems.

How Does M48Z128-85PM1 Work?

The M48Z128-85PM1 operates as a non-volatile static RAM by storing data in the static RAM array and using a lithium power source to retain the data during power loss. The built-in RTC provides accurate timekeeping functionality, enabling time-stamping and scheduled operations even when the system is powered off. This combination of features allows the M48Z128-85PM1 to provide both data storage and timekeeping capabilities in a single device.

How Many Pins does M48Z128-85PM1 have and What are the Functions of the Pinout Configuration?

The M48Z128-85PM1 is housed in a 28-lead DIP (Dual Inline Package) or SOIC (Small Outline Integrated Circuit) package. The pinout configuration includes:

  • VCC: Power supply pin for the SRAM array.
  • VEE: Negative power supply pin for the SRAM array.
  • VBAT: Back-up battery input for the RTC.
  • CE, CE2: Chip enables for the SRAM array.
  • BYTE: Selects byte or word operation.
  • WE: Write enable for the SRAM array.
  • OE: Output enable for the SRAM array.
  • RP, RV, WP: Control and status pins for the RTC.
  • Address Pins (A0-A14): Address inputs for the SRAM array.
  • Data Pins (DQ0-DQ7): Data input/output pins for the SRAM array.

What are the Pros and Cons of M48Z128-85PM1?

Pros:

  • Data Retention: Maintains data integrity during power loss or system shutdown.
  • Built-in RTC: Provides accurate timekeeping functionality without the need for an external RTC component.
  • Simple Interface: Operates similarly to standard SRAM devices, simplifying integration into existing designs.
  • Dual Functionality: Combines non-volatile memory and real-time clock features in a single device, reducing component count.
  • Compatibility: Interchangeable with standard 128 Kbit SRAM devices, offering drop-in compatibility.

Cons:

  • Cost: May be more expensive than standard SRAM devices due to the additional RTC functionality.
  • Complex Power Management: Requires careful consideration of power supply and back-up battery management for reliable operation.
  • Package Size: The 28-lead DIP or SOIC package may require additional board space compared to smaller packages.

Are There Any Equivalents/Alternatives to M48Z128-85PM1 for Recommendation?

  • The DS1245 from Maxim Integrated is a comparable NVSRAM with similar functionality.
  • Alternatives to the M48Z128-85PM1 include the FM1608 from Cypress Semiconductor and the M6M80011FP from Renesas Electronics.

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