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Analog Devices Inc./Maxim Integrated DS1350WP-100
- Part No.:
- DS1350WP-100
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Memory
- Package:
- 34-PowerCap™ Module
- Datasheet:
-
DS1350WP-100.pdf
- Description:
- IC NVSRAM 4MBIT PAR 34PWRCAP
- Quantity:
- Payment:
- Shipping:
Inventory:616
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Product details
Overview
DS1350WP-100 from Maxim Integrated is a 4,194,304-bit (524,288 × 8) nonvolatile SRAM with integrated lithium battery backup, 100ns access time, 3.3V operation, and industrial-grade temperature support (-40°C to +85°C). It provides automatic write protection during power loss, open-drain RST and BW outputs, and replaces 512k × 8 SRAM/EEPROM/Flash in mission-critical data logging systems.
For engineers reviewing the DS1350WP-100 datasheet, DS1350WP-100 pinout, DS1350WP-100 application, or DS1350WP-100 equivalent, key selection criteria include VCC fail-detect timing (tPD = 1.5µs), battery warning assertion logic (24-hour test cycle, 2.6V trip), and PowerCap Module (PCM) surface-mount compatibility with DS9034PC snap-on battery.
Technical Context
The DS1350WP-100 implements autonomous power-fail detection using internal voltage comparators that trigger at VTP = 2.8–3.0V, initiating immediate write protection and switching to lithium backup when VCC falls below ~2.5V. Its reset output RST holds processors for 150–350ms after power-up to ensure tREC (125ms) elapses before valid operation.
Battery monitoring executes a 1-second load test every 24 hours via a 1MΩ internal resistor; BW asserts if voltage drops below 2.6V and remains active until replacement. All I/O pins use TTL-compatible thresholds (VIH = 2.2V, VIL = 0.4V) and support 100ns read/write cycles with tACC = 100ns and tWC = 100ns at VCC = 3.3V ±0.3V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 4,194,304-bit (524,288 words × 8 bits); directly substitutes 512k × 8 volatile/nonvolatile memory in legacy designs. |
| Access Time | tACC = 100ns; enables integration into high-speed 3.3V microcontroller buses without wait states. |
| Data Retention | 10 years minimum without external power; guaranteed from first VCC application, with lithium disconnected until initial power-up. |
| Power Fail Response | tPD = 1.5µs detection delay; ensures write protection engages before RAM corruption occurs during brownout. |
| Operating Voltage | VCC = 3.0–3.6V; write protection activates at VTP = 2.8–3.0V, preventing writes below safe margin. |
| Standby Current | ICCS2 = 30–150µA at CE = VCC − 0.2V; supports ultra-low-power battery-backed operation in sleep modes. |
| Temperature Range | -40°C to +85°C (IND grade); qualified for industrial control, automotive black-box recorders, and telecom infrastructure. |
Pinout & Package
DS1350WP-100 uses a 34-pin PowerCap Module (PCM) package - a surface-mountable base module requiring separate DS9034PC snap-on lithium PowerCap. Dimensions: 0.925″ × 0.960″ × 0.245″ (L × W × H) with 0.055″ lead pitch. The PCM design avoids exposing the battery to reflow soldering temperatures.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A18 | Address Inputs | 19-bit address bus supporting full 524,288-word addressing; compatible with standard 3.3V microprocessor address lines. |
| DQ0–DQ7 | Data I/O | 8-bit bidirectional data bus with TTL-compatible drive strength (IOL = 2.0mA, IOH = −1.0mA). |
| CE, WE, OE | Control Inputs | Standard SRAM control interface: CE active-low chip select, WE active-low write strobe, OE active-low output enable. |
| RST | Reset Output | Open-drain output asserting low for 150–350ms after VCC rise; requires external pull-up for processor reset coordination. |
| BW | Battery Warning | Open-drain output asserting low when battery voltage <2.6V during 24-hour test; remains latched until module replacement. |
| VCC, GND | Power Rails | 3.3V supply and ground; VCC monitoring circuitry derives all internal references and triggers backup switchover. |
| NC | No Connect | Pin 34 is unconnected; no routing or termination required on PCB layout. |
Key Features
| Feature | Design Value |
|---|---|
| Automatic Power-Fail Switchover | Switches to lithium backup within 1.5µs of VCC decay below VTP; prevents data loss during sub-millisecond interruptions. |
| Self-Contained Battery Monitoring | Performs autonomous 24-hour voltage test using internal 1MΩ load; eliminates need for external supervisor IC or firmware polling. |
| Freshness Seal | Lithium cell electrically disconnected until first VCC application; guarantees full 10-year retention capacity from installation date. |
| Industrial Temperature Qualification | Rated for continuous operation from -40°C to +85°C; validated across full VCC range (3.0–3.6V) and AC timing specs. |
| Standardized PCM Pinout | Shared footprint and signal mapping across Maxim's nonvolatile SRAM family; enables drop-in upgrades without PCB redesign. |
Applications
| Industrial Data Logger | Medical Device Memory Backup |
|---|---|
Use Scenario: Continuous recording of sensor readings (temperature, pressure, ECG) in standalone field-deployed equipment with intermittent power. IC Role / Device Role / Timing Role: Nonvolatile SRAM storing real-time waveform buffers and configuration settings; RST synchronizes MCU boot sequence after grid recovery. Use Value: Guarantees zero data loss during 100ms–5s outages via sub-2.5V switchover and 10-year retention - eliminating EEPROM wear-out and Flash write latency. | Use Scenario: Patient monitor retaining last 72 hours of vital sign history and calibration parameters across power cycles and battery swaps. IC Role / Device Role / Timing Role: Primary memory holding time-stamped clinical data; BW alerts service staff when backup battery reaches end-of-life (2.6V threshold). Use Value: Meets IEC 62304 Class C software safety requirements by ensuring deterministic data integrity without firmware intervention during power transitions. |
| Telecom Base Station Controller | Avionics Flight Recorder Interface |
Use Scenario: Storing configuration profiles, alarm logs, and firmware patch metadata in LTE/5G remote radio units exposed to wide ambient temperature swings. IC Role / Device Role / Timing Role: High-reliability memory subsystem interfacing with ARM-based controllers; operates across -40°C to +85°C with no derating. Use Value: Eliminates need for external temperature-compensated supervisors and extends maintenance intervals via autonomous battery health reporting. | Use Scenario: Buffering cockpit voice and flight parameter streams before compression and storage in solid-state crash-survivable memory. IC Role / Device Role / Timing Role: Low-latency write-through cache between ADC interface and main recorder; tACC = 100ns meets ARINC 429 timing budgets. Use Value: Provides deterministic 100ns write response under vibration and thermal shock - critical for capturing final seconds before catastrophic failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nonvolatile SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS1350WP-150IND+ | Slower 150ns access time; identical pinout, temperature rating, and PowerCap interface. | Suitable where system bus timing budget allows longer tACC; lower cost for non-speed-critical deployments. | Select DS1350WP-150IND+ only if 100ns timing is not required - no PCB change needed. |
| MAX6900AWE+ | Serial I²C interface (not parallel); 256kbit EEPROM + RTC; no integrated battery or RST/BW outputs. | Used in space-constrained designs needing time-stamped logging but lacking parallel bus resources. | Choose MAX6900AWE+ only for I²C-based systems; requires firmware rewrite and loses autonomous reset/battery warning functions. |
Compared with DS1350WP-150IND+, the DS1350WP-100 delivers 50% faster access for real-time buffering; compared with MAX6900AWE+, it retains full parallel SRAM compatibility, deterministic power-fail response, and hardware-level battery supervision - critical for safety-certified systems.
Availability
DS1350WP-100 is available at Aetrix Electronics and suitable for industrial data loggers, medical device memory backup, and telecom base station controllers requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for DS1350WP-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) designs precision analog, mixed-signal, and power management ICs for industrial, medical, and communications applications.
The DS1350WP-100 belongs to Maxim's nonvolatile SRAM product line, engineered specifically for systems demanding zero-data-loss memory backup without external supervision circuitry or firmware overhead.
FAQ
What is the guaranteed data retention period for DS1350WP-100?
The DS1350WP-100 guarantees minimum 10 years of data retention in the absence of external power, measured from the time VCC is first applied - when the internal lithium battery is electrically connected. This specification assumes proper operation within rated temperature and voltage conditions, and accounts for self-discharge characteristics of the sealed lithium cell integrated into the PowerCap Module.
Does DS1350WP-100 require an external PowerCap, and which one?
Yes, DS1350WP-100 requires the DS9034PC (or DS9034PCI for industrial grade) PowerCap to be snapped onto its module base after PCB reflow. The DS1350WP-100 itself is the module base only; the DS9034PC contains the lithium battery and mates mechanically via keyed alignment. Both components must be ordered separately.
How does the battery warning (BW) output behave on DS1350WP-100?
The BW output on DS1350WP-100 is an open-drain signal that asserts low when the internal lithium battery voltage falls below 2.6V during its scheduled 24-hour test cycle. Once asserted, BW remains low until the entire PowerCap Module is replaced - even if subsequent tests show voltage above threshold. An external pull-up resistor is mandatory for proper logic-level operation.
What is the function of the RST output on DS1350WP-100?
The RST output on DS1350WP-100 is an open-drain reset signal that goes low for 150–350ms after VCC rises above VTP, holding the host processor in reset during power-up transients. It also asserts during VCC undervoltage events to warn of impending power loss. External pull-up is required, and RST can sink up to 10mA.
Can DS1350WP-100 operate without the DS9034PC PowerCap installed?
No - DS1350WP-100 requires the DS9034PC PowerCap to be physically attached to function as a nonvolatile SRAM. Without the PowerCap, the lithium energy source remains disconnected, and the device operates only as a volatile SRAM with no data retention during power loss. The module base alone cannot retain data once VCC is removed.
DS1350WP-100 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 34-PowerCap™ Module
- Packaging:
- Bulk
- Product Status:
- Active
- 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:
- 3V ~ 3.6V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 34-PowerCap Module
DS1350WP-100 FAQ
1.How can I place an order for DS1350WP-100 through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1350WP-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 DS1350WP-100 reliable?
The price and inventory of DS1350WP-100 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS1350WP-100 is usually 5 days.
3.What payment methods are accepted for DS1350WP-100?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1350WP-100 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1350WP-100?
DS1350WP-100 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1350WP-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 DS1350WP-100?
For technical support, including DS1350WP-100 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1350WP-100 requirements.
6.How does Aetrix verify that DS1350WP-100 is sourced from the original manufacturer or authorized distributors?
All DS1350WP-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 DS1350WP-100 meets industry standards.
7.What is the process for return or replacement of DS1350WP-100?
All DS1350WP-100 units undergo pre-shipment inspection (PSI). If there is an issue with DS1350WP-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 DS1350WP-100 part is unused and in its original packaging.
Return procedure for DS1350WP-100:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DS1350WP-100 Tags
-
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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AT24C02C-SSHM-T
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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
Microchip Technology
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AT24C04C-SSHM-T
Microchip Technology
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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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