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Analog Devices Inc./Maxim Integrated DS1230YP-70IND+
- Part No.:
- DS1230YP-70IND+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Memory
- Package:
- 34-PowerCap™ Module
- Datasheet:
-
DS1230YP-70IND+.pdf
- Description:
- IC NVSRAM 256KBIT PAR 34PWRCAP
- Quantity:
- Payment:
- Shipping:
Inventory:2,016
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Product details
Overview
DS1230YP-70IND+ from Maxim Integrated is a 256k (32k × 8) nonvolatile static RAM with integrated lithium backup, industrial temperature rating (–40°C to +85°C), ±10% VCC tolerance (4.5V–5.5V), and 70 ns read/write access time. It replaces volatile SRAM, EEPROM, or Flash in mission-critical data logging, real-time clock backup, and configuration storage where power loss resilience is essential.
For engineers reviewing the DS1230YP-70IND+ datasheet, DS1230YP-70IND+ pinout, DS1230YP-70IND+ application, or DS1230YP-70IND+ equivalent, this page delivers verified package mapping (34-pin PowerCap Module), terminal roles, retention timing, write-protection thresholds, and direct substitution guidance for industrial-grade nonvolatile memory selection.
Technical Context
The DS1230YP-70IND+ integrates a 262,144-bit SRAM array, lithium battery switching circuitry, and automatic write-protection logic that triggers at VTP = 4.25V (min) and maintains data when VCC falls below ~3.0V. Its PowerCap Module (PCM) architecture separates reflow-soldered PCB mounting from snap-on battery attachment using DS9034PC+ or DS9034PCI+.
It operates in three distinct modes: normal read/write (VCC ≥ 4.5V), automatic write-protect (VCC < 4.25V), and battery-retention (VCC < 3.0V). All inputs become "don't care" and outputs go high-Z during power-down, eliminating bus contention without external control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 256 kbit (32,768 × 8) - supports byte-wide microprocessor interfaces without address decoding overhead |
| Access Time | 70 ns - enables direct replacement of standard 32k × 8 SRAMs in legacy 8-bit/16-bit systems |
| Data Retention | 10 years minimum without external power - guaranteed by factory-fresh lithium disconnect and sealed PCM construction |
| VCC Range | 4.5V to 5.5V (±10%) - accommodates wide-input industrial power rails and brown-out conditions |
| Operating Temp | –40°C to +85°C - qualified for industrial control, metering, and transportation electronics |
| Write Cycles | Unlimited - eliminates wear-leveling firmware and endurance management logic |
| Standby Current | 50–150 µA (CE = VCC–0.5V) - enables low-power battery-backed operation in sleep states |
Pinout & Package
DS1230YP-70IND+ uses the 34-pin PowerCap Module (PCM) package: surface-mountable base with keyed snap-on DS9034PC+ or DS9034PCI+ PowerCap. The PCM avoids thermal exposure of the lithium cell during reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A14 | Address Inputs | 15-bit address bus for full 32k-word addressing; compatible with standard 8080/Z80/68K-style memory maps |
| DQ0–DQ7 | Data I/O | Bidirectional 8-bit data bus; high-impedance during write cycles if OE = VIH to prevent contention |
| CE | Chip Enable | Active-low chip select; initiates read/write when low; forces high-Z outputs on deassertion |
| WE | Write Enable | Active-low write strobe; falling edge (with CE low) starts write cycle; disables outputs in tODW |
| OE | Output Enable | Active-low output enable; must be high during writes to avoid bus conflicts |
| VCC | Power Supply | +5V supply input; powers SRAM and control logic; monitored continuously for voltage decay |
| GND | Ground | Reference return path for all signals and internal switching circuits |
| VBAT | Lithium Backup Terminal | Connects to DS9034PC+ PowerCap; electrically isolated until first VCC application >4.25V |
| NC | No Connect | Unused pins (pins 1, 3, 4, 33, 34); no internal connection; must remain unconnected |
Key Features
| Feature | Design Value |
|---|---|
| Automatic Write Protection | Triggers unconditionally at VTP = 4.25V (min); prevents corruption during brown-out or power failure |
| Freshness Seal | Lithium source disconnected at shipment; full capacity preserved until first VCC application >4.25V |
| Standardized PCM Pinout | Shared footprint across Maxim's nonvolatile SRAM family; simplifies BOM consolidation and layout reuse |
| High-Temp Battery Isolation | PowerCap snaps on post-reflow; lithium never exposed to >260°C soldering temperatures |
| Zero External Support Circuitry | No external capacitors, regulators, or supervisory ICs required for nonvolatile operation |
Applications
| Industrial Data Logger | Smart Energy Meter |
|---|---|
|
Use Scenario: Continuous recording of sensor readings and event timestamps during grid outages or maintenance windows. IC Role / Device Role / Timing Role: Nonvolatile SRAM storing last-known state, calibration coefficients, and fault logs with zero write-cycle limits. Use Value: Guarantees 10-year data integrity without battery replacement or firmware wear leveling, even after repeated power interruptions. |
Use Scenario: Storing tariff schedules, billing registers, and tamper-event history in utility-grade electricity meters operating across wide ambient temperatures. IC Role / Device Role / Timing Role: Industrial-grade memory buffer retaining critical billing data during AC mains dropout or meter reset. Use Value: Meets IEC 62053-21 requirements for data retention under –40°C to +85°C and 10-year shelf life without external backup. |
| Medical Infusion Pump | Railway Signaling Controller |
|
Use Scenario: Preserving therapy parameters, dose history, and alarm logs during battery swaps or AC power loss in Class II medical devices. IC Role / Device Role / Timing Role: Fail-safe memory holding treatment profiles and audit trails with deterministic write-protection activation. Use Value: Eliminates risk of corrupted therapy data during power transitions-critical for ISO 13485 compliance and FDA design controls. |
Use Scenario: Maintaining interlocking logic states and signal timing configurations in wayside signaling cabinets exposed to rail-side thermal cycling. IC Role / Device Role / Timing Role: Nonvolatile storage for safety-critical configuration tables and last-valid operational mode. Use Value: Ensures EN 50126/50128 SIL-2 functional safety compliance via guaranteed 10-year retention and automatic brown-out protection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nonvolatile SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS1230ABP-70IND+ | ±5% VCC tolerance (4.75V–5.25V); higher write-protection threshold (4.50V min) | Better suited for tightly regulated 5V supplies; less tolerant of brown-out but faster recovery from marginal VCC | Select when system VCC regulation is stable and write-protection margin must exceed 4.5V |
| STK12C68-70I | Same 256k size, 70 ns speed, industrial temp, but uses internal capacitor-based backup (no lithium) | Shorter retention (~14 days typical); unsuitable for long-term archival but avoids battery handling restrictions | Select when RoHS battery-free design or simplified logistics outweigh 10-year retention requirement |
Compared with DS1230ABP-70IND+, the DS1230YP-70IND+ offers wider VCC tolerance for unregulated industrial rails, while STK12C68-70I trades lithium longevity for capacitor-based simplicity-making DS1230YP-70IND+ optimal for long-duration, safety-critical backup where voltage variation is expected.
Availability
DS1230YP-70IND+ is available at Aetrix Electronics and suitable for industrial data loggers, smart energy meters, and medical infusion pumps requiring stable component supply with guaranteed 10-year data retention and –40°C to +85°C operation.
Supply support for DS1230YP-70IND+ 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
Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and nonvolatile memory solutions for industrial, medical, and automotive applications.
The DS1230Y/AB product line delivers self-contained nonvolatile SRAMs with integrated lithium backup and automatic power-fail protection-engineered specifically for systems demanding zero-data-loss memory in harsh, unattended environments.
FAQ
What is the guaranteed data retention period for DS1230YP-70IND+?
The DS1230YP-70IND+ guarantees a minimum 10-year data retention period in the absence of external power, measured from the time VCC is first applied above 4.25V. This is assured by factory-sealed lithium freshness, controlled component selection, and process validation-not extrapolated or estimated. The DS1230YP-70IND+ achieves this without external capacitors or support circuitry.
Does DS1230YP-70IND+ require external circuitry for battery backup operation?
No, the DS1230YP-70IND+ requires no external circuitry for nonvolatile operation. Its integrated control logic monitors VCC continuously, automatically switches to lithium backup below ~3.0V, and enforces unconditional write protection below 4.25V. The DS1230YP-70IND+ functions as a drop-in replacement for standard 28-pin DIP SRAMs when used with the DS9034PC+ PowerCap.
What is the role of the VBAT pin on DS1230YP-70IND+?
The VBAT pin on DS1230YP-70IND+ is the dedicated lithium battery contact point for the DS9034PC+ or DS9034PCI+ PowerCap. It remains electrically isolated from the SRAM until VCC exceeds 4.25V for the first time-preserving full battery capacity. During power loss, VBAT supplies current to retain data; during normal operation, it is disconnected to prevent self-discharge.
Can DS1230YP-70IND+ be reflow soldered directly with its PowerCap attached?
No-DS1230YP-70IND+ must be reflow soldered without the PowerCap. The DS9034PC+ or DS9034PCI+ PowerCap is snapped onto the pre-soldered PCM base after reflow. This protects the lithium cell from destructive thermal exposure (>260°C), as specified in Maxim's packaging guidelines. Attaching the PowerCap before reflow voids the 10-year retention guarantee.
How does DS1230YP-70IND+ differ from DS1230Y-70IND+?
DS1230YP-70IND+ and DS1230Y-70IND+ share identical memory size, speed (70 ns), temperature range (–40°C to +85°C), and functionality-but differ in package only: DS1230YP-70IND+ uses the 34-pin PowerCap Module (PCM), while DS1230Y-70IND+ uses the 28-pin EDIP. Both use ±10% VCC tolerance and the same 4.25V write-protection threshold. The DS1230YP-70IND+ enables surface-mount assembly with post-solder battery attachment.
DS1230YP-70IND+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 34-PowerCap™ Module
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- NVSRAM
- Technology:
- NVSRAM (Non-Volatile SRAM)
- Memory Size:
- 256Kbit
- Memory Organization:
- 32K x 8
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 70ns
- Access Time:
- 70 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 34-PowerCap Module
DS1230YP-70IND+ FAQ
1.How can I place an order for DS1230YP-70IND+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1230YP-70IND+ 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 DS1230YP-70IND+ reliable?
The price and inventory of DS1230YP-70IND+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS1230YP-70IND+ is usually 5 days.
3.What payment methods are accepted for DS1230YP-70IND+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1230YP-70IND+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1230YP-70IND+?
DS1230YP-70IND+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1230YP-70IND+ 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 DS1230YP-70IND+?
For technical support, including DS1230YP-70IND+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1230YP-70IND+ requirements.
6.How does Aetrix verify that DS1230YP-70IND+ is sourced from the original manufacturer or authorized distributors?
All DS1230YP-70IND+ 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 DS1230YP-70IND+ meets industry standards.
7.What is the process for return or replacement of DS1230YP-70IND+?
All DS1230YP-70IND+ units undergo pre-shipment inspection (PSI). If there is an issue with DS1230YP-70IND+, 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 DS1230YP-70IND+ part is unused and in its original packaging.
Return procedure for DS1230YP-70IND+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DS1230YP-70IND+ Tags
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