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Renesas M5M5256DVP-70XL#SE
- Part No.:
- M5M5256DVP-70XL#SE
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- -
- Datasheet:
-
M5M5256DVP-70XL#SE.pdf
- Description:
- STANDARD SRAM, 32KX8
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
M5M5256DVP-70XL#SE from Renesas is a 262,144-bit (32,768-word × 8-bit) CMOS static RAM in a 28-pin TSOP package, operating on single +5V supply with TTL-compatible I/O, three-state outputs, and battery backup capability down to +2.0V. It delivers 70ns access time, 0.05µA typical standby current, and supports /S-/W-/OE-controlled read/write cycles for embedded memory subsystems.
For engineers reviewing the M5M5256DVP-70XL#SE datasheet, M5M5256DVP-70XL#SE pinout, M5M5256DVP-70XL#SE application, or M5M5256DVP-70XL#SE equivalent, key selection criteria include its 70ns read cycle time, 28-pin TSOP-28 (8×13.4 mm) footprint, low-power standby mode, direct TTL interfacing, and chip-select–gated OR-tie expandability in memory arrays.
Technical Context
This SRAM implements a resistive-load NMOS cell array with CMOS periphery for high density and low power. Its /S (chip select), /W (write enable), and /OE (output enable) control logic enables precise bus contention management and supports both /W- and /S-controlled write modes.
The device features dual power-down behavior: when /S is high, it enters standby with ≤40µA max current at Vcc=5.5V and retains data down to Vcc=2.0V; timing parameters are specified under CL=100pF load for -70XL variants, with setup/hold times referenced to /W and /S edges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 262,144-bit (32,768 × 8-bit) - provides byte-wide addressing for microcontroller-based systems with limited address bus width. |
| Access time | 70 ns - determines maximum sustained read throughput in synchronous memory interfaces without wait states. |
| Standby current | 0.05 µA typical at Vcc=5.5V - enables multi-year battery backup in power-critical applications like real-time clocks or configuration storage. |
| Supply voltage | +5V ±10% - compatible with legacy 5V logic families without level translation. |
| Operating temperature | 0°C to +70°C - qualified for commercial-grade industrial control panels and instrumentation. |
| I/O compatibility | TTL-compatible inputs/outputs - allows direct connection to 74LS/74HC logic and microcontroller GPIO without buffers. |
| Data retention voltage | +2.0V minimum - ensures reliable data hold during brown-out or controlled power-down sequences. |
Pinout & Package
Package: 28-pin Thin Small Outline Package (TSOP-I), 8 mm × 13.4 mm, body height 1.2 mm, lead pitch 0.55 mm (Outline 28P2C-A).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A14 | Address inputs | 15-bit address bus supporting full 32,768-word decoding; no internal multiplexing required. |
| DQ1–DQ8 | Bi-directional data I/O | Common data bus pins with three-state output drivers; enable OR-tie expansion via /OE control. |
| /S | Chip select | Active-low global enable; places outputs in high-impedance state when deasserted, reducing bus contention. |
| /W | Write enable | Active-low write strobe; latches input data on trailing edge of /W or /S, whichever occurs first. |
| /OE | Output enable | Directly gates output drivers; independent of /W, allowing read-modify-write cycles without bus conflict. |
| Vcc | Power supply | +5V supply pin; decoupling capacitor placement near this pin is critical for noise immunity during fast transitions. |
| GND | Ground reference | Signal and power ground return; must be low-inductance connection to minimize switching noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| No clock or refresh required | Eliminates external timing circuitry and reduces firmware overhead-ideal for simple microcontroller co-processors. |
| Three-state outputs with OR-tie capability | Enables parallel memory expansion using multiple chips on shared data bus without external bus transceivers. |
| Direct TTL compatibility | Accepts standard 0.8V/2.0V logic thresholds and drives 2mA loads-interoperable with legacy 5V MCU peripherals. |
| Battery backup support (Vcc ≥ +2.0V) | Preserves stored configuration or calibration data during main power loss-used in metering and alarm systems. |
| Low active supply current (≤50mA) | Reduces thermal load in compact enclosures and extends battery life in portable diagnostic tools. |
Applications
| Industrial PLC Data Buffer | Medical Device Configuration Storage |
|---|---|
Use Scenario: Storing runtime I/O mapping tables and fault logs in programmable logic controllers with intermittent power. IC Role / Device Role / Timing Role: Byte-accessible non-refresh volatile memory acting as fast scratchpad between CPU and fieldbus interface. Use Value: 70ns access time enables real-time response to sensor interrupts; 0.05µA standby current preserves log integrity during 24-hour mains outage. |
Use Scenario: Holding user-calibrated sensor offsets and device serialization data in portable ultrasound units. IC Role / Device Role / Timing Role: Battery-backed configuration register bank accessed only during boot or service mode. Use Value: Data retention at +2.0V allows seamless transition to coin-cell backup during AC power removal; TSOP-28 footprint saves PCB area in handheld form factors. |
| Automotive Body Control Module EEPROM Shadow | Test Equipment Firmware Patch Memory |
Use Scenario: Mirroring EEPROM contents into faster RAM for rapid lookup of lighting profiles and door lock states. IC Role / Device Role / Timing Role: Read-optimized static RAM serving as cache layer between microcontroller core and slow serial EEPROM. Use Value: TTL compatibility eliminates level shifters; /OE-controlled output gating prevents bus conflicts during concurrent CAN message handling. |
Use Scenario: Hosting field-upgradable firmware patches in automated test handlers where flash reprogramming is impractical. IC Role / Device Role / Timing Role: Volatile code-execution memory loaded via JTAG at power-on, enabling zero-downtime updates. Use Value: 28-pin TSOP package allows socketed replacement; 70ns read cycle supports 14.3 MHz instruction fetch rate for ARM7TDMI cores. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar static RAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IS61LV25616AL-70TLI | 16-bit wide (128K×16), 70ns, 3.3V-only supply, SOJ-44 package | Requires 3.3V system redesign and PCB layout change; higher density but wider bus | Select when migrating to 3.3V architecture and needing >256KB capacity with 16-bit data path. |
| AS6C4008-70PCN | 8-bit wide (512K×8), 70ns, +5V supply, SOP-28 package, 1µA standby | Larger capacity and lower standby current, but same pinout and voltage domain | Drop-in upgrade path if board space permits larger die and longer data retention time is required. |
Compared with M5M5256DVP-70XL#SE, IS61LV25616AL-70TLI requires voltage and bus-width redesign, while AS6C4008-70PCN offers higher density and lower standby current in identical SOP-28 footprint-making it the preferred drop-in alternative for capacity-constrained designs.
Availability
M5M5256DVP-70XL#SE is available at Aetrix Electronics and suitable for industrial PLC data buffering, medical device configuration storage, and automotive body control module applications requiring stable component supply across extended product lifecycles.
Supply support for M5M5256DVP-70XL#SE includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Renesas Electronics Corporation is a Japanese semiconductor manufacturer specializing in microcontrollers, analog, power, and memory solutions for industrial, automotive, and infrastructure markets.
The M5M5256DVP-70XL#SE belongs to Renesas' legacy CMOS SRAM product line designed for cost-sensitive, low-power, 5V-system memory expansion in space-constrained embedded applications.
FAQ
What is the maximum operating frequency supported by the M5M5256DVP-70XL#SE?
The M5M5256DVP-70XL#SE does not operate on a clock signal-it is an asynchronous static RAM. Its performance is defined by access time: 70ns maximum read cycle time (tCR) at Vcc = 5V ±10%. This corresponds to a theoretical maximum random read rate of ~14.3 MHz, assuming no bus turnaround or setup delays. The M5M5256DVP-70XL#SE relies entirely on /S, /W, and /OE timing rather than clocked operation.
Does the M5M5256DVP-70XL#SE support true 3.3V operation?
No, the M5M5256DVP-70XL#SE is specified only for +5V ±10% operation (4.5V to 5.5V). Its DC and AC electrical characteristics-including VIH/VIL thresholds, output drive strength, and timing-are validated exclusively within that range. Applying 3.3V may result in undefined behavior, failed reads/writes, or excessive standby current. For 3.3V systems, consider alternatives like IS61LV25616AL-70TLI.
Can the M5M5256DVP-70XL#SE retain data during complete power loss?
The M5M5256DVP-70XL#SE retains data only while Vcc remains ≥ +2.0V-not during total power loss. It supports battery backup: when main Vcc drops, a secondary 2–5V battery connected to Vcc maintains data integrity. However, the M5M5256DVP-70XL#SE has no internal non-volatility; data is lost if Vcc falls below 2.0V. External supercapacitors or coin cells must be used for hold time extension.
Is the M5M5256DVP-70XL#SE pin-compatible with other variants in the M5M5256D family?
Yes-the M5M5256DVP-70XL#SE shares identical pinout and function mapping with all M5M5256DVP variants (e.g., -55XL, -70LLI) and M5M5256DFP variants in 28-pin packages. Differences are limited to speed grade (-55 vs -70), temperature range (0–70°C vs -40–85°C), and package type (TSOP vs SOP). No PCB changes are needed when substituting within the VP/FP 28-pin series.
What is the recommended decoupling for the M5M5256DVP-70XL#SE?
Renesas recommends a 0.1 µF ceramic capacitor placed as close as possible to the Vcc pin (Pin 27) and GND (Pin 20), plus a 4.7 µF–10 µF bulk capacitor within 1 inch of the device. This suppresses high-frequency switching noise generated during address/data transitions and ensures stable 70ns timing margins. The M5M5256DVP-70XL#SE exhibits peak current draw during output enable transitions, making local decoupling essential.
M5M5256DVP-70XL#SE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- -
- Memory Format:
- -
- Technology:
- -
- Memory Size:
- -
- Memory Organization:
- -
- Memory Interface:
- -
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- -
- Access Time:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
M5M5256DVP-70XL#SE FAQ
1.How can I place an order for M5M5256DVP-70XL#SE through Aetrix?
Please submit a Request for Quotation (RFQ) for M5M5256DVP-70XL#SE on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for M5M5256DVP-70XL#SE reliable?
The price and inventory of M5M5256DVP-70XL#SE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M5M5256DVP-70XL#SE is usually 5 days.
3.What payment methods are accepted for M5M5256DVP-70XL#SE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M5M5256DVP-70XL#SE transactions.
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M5M5256DVP-70XL#SE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M5M5256DVP-70XL#SE order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for M5M5256DVP-70XL#SE?
For technical support, including M5M5256DVP-70XL#SE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M5M5256DVP-70XL#SE requirements.
6.How does Aetrix verify that M5M5256DVP-70XL#SE is sourced from the original manufacturer or authorized distributors?
All M5M5256DVP-70XL#SE products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that M5M5256DVP-70XL#SE meets industry standards.
7.What is the process for return or replacement of M5M5256DVP-70XL#SE?
All M5M5256DVP-70XL#SE units undergo pre-shipment inspection (PSI). If there is an issue with M5M5256DVP-70XL#SE, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The M5M5256DVP-70XL#SE part is unused and in its original packaging.
Return procedure for M5M5256DVP-70XL#SE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
M5M5256DVP-70XL#SE Tags
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