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Analog Devices Inc./Maxim Integrated DS1250ABP-100+
- Part No.:
- DS1250ABP-100+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Memory
- Package:
- 34-PowerCap™ Module
- Datasheet:
-
DS1250ABP-100+.pdf
- Description:
- IC NVSRAM 4MBIT PAR 34PWRCAP
- Quantity:
- Payment:
- Shipping:
Inventory:3,298
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Product details
Overview
DS1250ABP-100+ from Maxim Integrated is a 4,194,304-bit (512k × 8) nonvolatile static RAM with integrated lithium backup, JEDEC-standard 34-pin PowerCap Module (PCM) package, 70ns access time, ±5% VCC tolerance (4.75V–5.25V), and industrial temperature support (-40°C to +85°C). It serves as a drop-in replacement for volatile SRAM in battery-backed data logging systems requiring guaranteed 10-year data retention without external circuitry.
For engineers reviewing the DS1250ABP-100+ datasheet, DS1250ABP-100+ pinout, DS1250ABP-100+ application, or DS1250ABP-100+ equivalent, key selection criteria include write-protection voltage threshold (4.50–4.75V), PCM-compatible surface-mount integration, lithium-freshness seal activation on first power-up, and compatibility with standard 8-bit microprocessor buses.
Technical Context
The DS1250ABP-100+ implements autonomous power-fail detection using internal voltage monitoring that triggers unconditional write protection when VCC drops below 4.5V, then switches to lithium backup at ~3.0V. Its control logic ensures all inputs become "don't care" and outputs go high-impedance during power transition.
It operates as a fully static byte-wide memory with no refresh required, supports standard asynchronous read/write timing (tACC = 70ns, tWC = 70ns), and uses a dedicated 34-pin PCM footprint where pins 33–34 provide VBAT/GND connections for the snap-on DS9034PC+ PowerCap - not integrated into the base module.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 4,194,304-bit (524,288 × 8) - supports full 512k-byte addressing with A0–A18 |
| Access Time | 70ns - enables direct interface with 14MHz+ microprocessors without wait states |
| VCC Range | 4.75V to 5.25V (±5%) - ensures stable operation across regulated 5V rails with typical supply variation |
| Data Retention | 10 years minimum without external power - guaranteed by sealed lithium source and automatic switchover |
| Write Protection Threshold | 4.50–4.75V - initiates hardware lockout before data corruption occurs during brownout |
| Operating Temperature | -40°C to +85°C (IND grade) - qualified for industrial control and automotive under-hood environments |
| Package Type | 34-pin PowerCap Module (PCM) - surface-mountable base requiring separate DS9034PC+ snap-on battery cap |
Pinout & Package
DS1250ABP-100+ uses a 34-pin PowerCap Module (PCM) package: a surface-mountable module base with standardized pinout for nonvolatile SRAMs, designed to accept the DS9034PC+ or DS9034PCI+ snap-on PowerCap. The lithium battery is not embedded - it connects externally via pins 33 (VBAT) and 34 (GND).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A18 | Address Inputs | 19-bit address bus supporting full 524,288-word decoding; compatible with standard 8-bit MPU address lines |
| DQ0–DQ7 | Data I/O | Bi-directional 8-bit data bus with TTL-compatible levels; high-impedance during write or deselection |
| CE | Chip Enable | Active-low chip select; controls device enable and participates in write-cycle timing (tWR, tDH) |
| WE | Write Enable | Active-low write strobe; output drivers disabled during write to prevent bus contention |
| OE | Output Enable | Active-low output control; allows read data gating independent of CE |
| VCC | Power Supply | +5V ±5% main supply; powers SRAM core and control logic; monitored for fail detection |
| GND | Ground | Signal and power reference plane; pin 17 and pin 34 serve as dual ground paths in PCM layout |
| VBAT | Lithium Backup Input | Pin 33 - connects to DS9034PC+ battery cap; electrically isolated until first VCC application >4.25V |
| NC | No Connect | Pins 1, 2, 3, 18, 31 - unused; must remain unconnected per design specification |
Key Features
| Feature | Design Value |
|---|---|
| Freshness Seal Activation | Lithium energy source remains electrically disconnected until first VCC >4.25V, preserving full 10-year capacity |
| Autonomous Power-Fail Response | Hardware-level VCC monitoring triggers immediate write protection and lithium switchover within 1.5µs (tPD) |
| Unlimited Write Cycles | No endurance limit - eliminates wear-leveling firmware and write-cycle counting overhead |
| Standardized PCM Interface | 34-pin footprint enables modular design: reflow-solder base first, then snap on DS9034PC+ without thermal stress on battery |
| JEDEC-Compatible Pinout | Byte-wide 8-bit data bus and full 19-bit address mapping align with legacy 512k×8 SRAM layouts |
Applications
| Industrial Data Logger | Medical Device Memory |
|---|---|
Use Scenario: Continuous recording of sensor readings (temperature, pressure, ECG) in standalone field-deployed loggers with intermittent power. IC Role / Device Role / Timing Role: Nonvolatile SRAM storing real-time waveform buffers and configuration settings during AC mains loss or battery depletion. Use Value: Guarantees 10-year data integrity without supercapacitors or external backup controllers - reducing BOM count and PCB area. | Use Scenario: Storing calibration coefficients, patient history, and last-known vital signs in portable diagnostic equipment. IC Role / Device Role / Timing Role: Fail-safe memory holding critical state data during unexpected shutdowns or sterilization cycles. Use Value: Eliminates EEPROM write delays and flash erase cycles - enabling instant resume after power restoration. |
| Telecom Base Station Controller | Avionics Black Box Recorder |
Use Scenario: Maintaining call routing tables and fault logs in remote radio units exposed to wide ambient temperature swings. IC Role / Device Role / Timing Role: Industrial-grade (–40°C to +85°C) nonvolatile storage interfacing directly with ARM9 or MIPS-based control processors. Use Value: Delivers 70ns random access with zero software overhead - outperforming serial EEPROM in latency-critical control loops. | Use Scenario: Capturing flight parameter snapshots (altitude, attitude, engine status) in crash-survivable recorders. IC Role / Device Role / Timing Role: Radiation-tolerant, high-reliability memory with deterministic power-loss response and verified 10-year retention. Use Value: Meets DO-160E Section 22 crash survivability requirements through autonomous lithium switchover and sealed backup architecture. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nonvolatile SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS1250Y-70IND+ | Wider VCC range (4.5V–5.5V, ±10%), lower write-protection threshold (4.25–4.5V); same PCM option available as DS1250YP-70IND+ | Preferred in systems with unregulated 5V supplies or higher ripple; less margin before write protect engages | Select DS1250Y-70IND+ only if supply regulation is marginal and brownout tolerance >0.25V is required. |
| STK15C88-70I | 512k×8 nvSRAM in 32-pin DIP; no PCM option; uses internal battery; 70ns access; 10-year retention; -40°C to +85°C | Direct DIP replacement; lacks surface-mount flexibility and detachable PowerCap serviceability | Choose STK15C88-70I for through-hole designs or where rework of battery module is not needed. |
Compared with DS1250Y-70IND+, DS1250ABP-100+ offers tighter supply regulation tolerance and higher write-protection voltage - improving noise immunity in clean power systems; compared with STK15C88-70I, DS1250ABP-100+ provides field-replaceable battery via PCM architecture and superior thermal management during assembly.
Availability
DS1250ABP-100+ is available at Aetrix Electronics and suitable for industrial data loggers, medical diagnostic devices, and telecom base station controllers requiring stable component supply, long-life nonvolatile memory, and RoHS-compliant surface-mount integration.
Supply support for DS1250ABP-100+ 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) is a semiconductor company specializing in analog, mixed-signal, and power-management ICs for industrial, communications, and computing applications.
The DS1250ABP-100+ belongs to Maxim's nonvolatile SRAM product line, engineered for systems demanding zero-software, hardware-governed data retention during unpredictable power loss - especially in harsh-environment instrumentation and safety-critical edge devices.
FAQ
What is the function of the VBAT pin on the DS1250ABP-100+?
The VBAT pin (pin 33) on the DS1250ABP-100+ provides the connection point for the lithium backup battery housed in the separately ordered DS9034PC+ PowerCap. It remains electrically isolated from the SRAM until the first application of VCC >4.25V, ensuring full battery freshness. During power failure, the internal switch connects VBAT to sustain memory contents without external intervention.
Does the DS1250ABP-100+ require external support circuitry for microprocessor interfacing?
No, the DS1250ABP-100+ requires no external support circuitry for microprocessor interfacing. Its built-in control logic handles automatic write protection, lithium switchover, and bus timing compliance. It interfaces directly with standard 8-bit parallel buses using CE, WE, OE, and address/data lines - eliminating need for glue logic or supervisor ICs.
How does the DS1250ABP-100+ differ from the DS1250AB-70+ DIP version?
The DS1250ABP-100+ uses a 34-pin PowerCap Module (PCM) package for surface-mount assembly and requires the DS9034PC+ snap-on battery cap, whereas the DS1250AB-70+ is a 32-pin EDIP with integrated battery. The PCM architecture allows reflow soldering of the module base before battery attachment - preventing thermal damage to the lithium cell - and enables field replacement of the PowerCap.
What is the significance of the "+" suffix in DS1250ABP-100+?
The "+" suffix in DS1250ABP-100+ indicates a lead(Pb)-free and RoHS-compliant package. It confirms compliance with EU Directive 2011/65/EU and meets Maxim Integrated's environmental specifications for halogen-free materials and green manufacturing - critical for export-controlled and medical-grade electronics.
Can the DS1250ABP-100+ be used in place of standard volatile SRAM without design changes?
Yes, the DS1250ABP-100+ is pin-compatible with industry-standard 512k×8 volatile SRAMs in its functional interface: identical A0–A18, DQ0–DQ7, CE, WE, OE, VCC, and GND signal assignments. No address decoding, timing, or bus logic modifications are needed - though system firmware should avoid writes during power transitions to leverage hardware write protection.
DS1250ABP-100+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 34-PowerCap™ Module
- Packaging:
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- NVSRAM
- Technology:
- NVSRAM (Non-Volatile SRAM)
- Memory Size:
- 4Mbit
- Memory Organization:
- 512K x 8
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 100ns
- Access Time:
- 100 ns
- Voltage - Supply:
- 4.75V ~ 5.25V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 34-PowerCap Module
DS1250ABP-100+ FAQ
1.How can I place an order for DS1250ABP-100+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1250ABP-100+ 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 DS1250ABP-100+ reliable?
The price and inventory of DS1250ABP-100+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS1250ABP-100+ is usually 5 days.
3.What payment methods are accepted for DS1250ABP-100+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1250ABP-100+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1250ABP-100+?
DS1250ABP-100+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1250ABP-100+ 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 DS1250ABP-100+?
For technical support, including DS1250ABP-100+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1250ABP-100+ requirements.
6.How does Aetrix verify that DS1250ABP-100+ is sourced from the original manufacturer or authorized distributors?
All DS1250ABP-100+ 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 DS1250ABP-100+ meets industry standards.
7.What is the process for return or replacement of DS1250ABP-100+?
All DS1250ABP-100+ units undergo pre-shipment inspection (PSI). If there is an issue with DS1250ABP-100+, 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 DS1250ABP-100+ part is unused and in its original packaging.
Return procedure for DS1250ABP-100+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DS1250ABP-100+ Tags
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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
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AT21CS01-STUM10-T
Microchip Technology
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24LC01BT-I/OT
Microchip Technology
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M24C02-FMC6TG
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AT24CS02-SSHM-T
Microchip Technology
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93LC46BT-I/OT
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AT24C04C-SSHM-T
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24LC01BT-I/SN
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24AA02UIDT-I/OT
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AT24C08C-STUM-T
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