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Cypress Semiconductor Corp CYATB108LD-ZS45XI
- Part No.:
- CYATB108LD-ZS45XI
- Manufacturer:
- Cypress Semiconductor Corp
- Category:
- Memory
- Package:
- 44-TSOP (0.400", 10.16mm Width)
- Datasheet:
-
CYATB108LD-ZS45XI.pdf
- Description:
- IC NVSRAM 8MBIT PAR 44TSOP II
- Quantity:
- Payment:
- Shipping:
Inventory:4,878
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Product details
Overview
CYATB108LD-ZS45XI from Cypress Semiconductor is an 8-Mb (1 Mb × 8) industrial-grade nvSRAM with 45 ns access time, operating from 2.7 V to 3.6 V over –40°C to +85°C. It integrates a nonvolatile SONOS cell array with a standard SRAM interface and automatic store/retrieve on power loss, used in automotive instrumentation clusters requiring deterministic data retention without external backup.
For engineers reviewing the CYATB108LD-ZS45XI datasheet, CYATB108LD-ZS45XI pinout, CYATB108LD-ZS45XI application, or CYATB108LD-ZS45XI equivalent, key selection criteria include 45 ns read/write timing, TSOP II-44 package compatibility, industrial temperature support, and integrated auto-store functionality eliminating external capacitors or batteries.
Technical Context
This nvSRAM implements a dual-memory architecture: a volatile SRAM core for high-speed random access and a nonvolatile SONOS storage array for data retention. Store operation triggers automatically at VCC dropout below 2.7 V, completing within 10 ms using internal charge-pump energy harvesting.
The device supports asynchronous parallel interface with CE#, OE#, and WE# control signals, full static operation (no refresh required), and byte-wide data bus (DQ0–DQ7). It complies with JEDEC-standard TSOP II-44 mechanical dimensions and pinout for drop-in replacement in legacy SRAM designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Density | 8192 Kb (1,048,576 × 8 bits): supports full firmware state logging in engine control units without external memory expansion. |
| Access Time | 45 ns: enables direct interfacing with 20 MHz microcontrollers without wait states. |
| Supply Voltage | 2.7 V to 3.6 V: matches automotive 3.3 V rail tolerances and eliminates need for dedicated LDO regulation. |
| Operating Temp | –40°C to +85°C: qualified for under-hood and dashboard-mounted applications per AEC-Q100 Class 2 requirements. |
| Package | 44-pin TSOP II (729 × 435 × 105 mils): compatible with standard SMT reflow profiles and automated optical inspection systems. |
| Nonvolatile Store | Automatic on power loss: no external capacitor or battery required; stores all SRAM contents within 10 ms of VCC collapse. |
Pinout & Package
44-pin Thin Small Outline Package Type II (TSOP II), 400-mil body width, 0.8 mm pitch, JEDEC MO-141AC compliant. Pin 1 marked by notch or dot; pins arranged in two staggered rows.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A19 | Address Inputs | 20-bit address bus supporting full 1 Mb × 8 decoding; A0 = LSB, A19 = MSB. |
| DQ0–DQ7 | Data I/O | Bi-directional 8-bit data bus; TTL-compatible input thresholds and output drive strength. |
| CE# | Chip Enable | Active-low enable controlling device selection; must be low for read/write/store operations. |
| OE# | Output Enable | Active-low control for data bus drivers; high-impedance when deasserted during write cycles. |
| WE# | Write Enable | Active-low signal initiating SRAM write or nonvolatile store command sequence. |
| VCC / VCCQ | Power Supplies | Single 2.7–3.6 V supply for core and I/O; no separate VCCQ required. |
| GND | Ground | Common reference for all digital and analog circuitry; two dedicated pins for noise reduction. |
Key Features
| Feature | Design Value |
|---|---|
| AutoStore on Power Loss | Internal charge pump captures energy during VCC decay to complete store in ≤10 ms-no external components needed. |
| No External Battery/Capacitor | Eliminates BOM cost, reliability risk, and board space associated with backup power solutions. |
| JEDEC-Compliant TSOP II-44 | Enables direct PCB footprint reuse from standard 1-Mb × 8 SRAMs, reducing layout redesign effort. |
| Industrial Temperature Range | Validated operation from –40°C to +85°C ensures functional integrity in automotive cabin and industrial PLC environments. |
| Asynchronous Parallel Interface | Supports legacy microcontroller buses without clock domain translation or FIFO buffering logic. |
Applications
| Automotive Instrument Cluster | Industrial PLC Data Logger |
|---|---|
Use Scenario: Storing odometer, trip meter, and warning status across ignition cycles without battery drain. IC Role / Device Role / Timing Role: Nonvolatile scratchpad memory holding real-time vehicle metrics during power-down transitions. Use Value: Guarantees zero-data-loss store within 10 ms of VCC collapse, meeting ISO 16750-2 transient immunity requirements. | Use Scenario: Capturing sensor readings and alarm timestamps during unexpected AC mains failure. IC Role / Device Role / Timing Role: High-reliability buffer memory preserving last 128 KB of process data before shutdown. Use Value: 45 ns access time allows real-time logging at 22 MB/s burst rate without CPU stalling. |
| Medical Infusion Pump | Avionics Display Controller |
Use Scenario: Retaining dosage history, error logs, and calibration offsets between power cycles. IC Role / Device Role / Timing Role: Fail-safe memory storing critical therapy parameters with deterministic store latency. Use Value: Industrial temp rating and auto-store eliminate need for thermal derating or external supervision circuits. | Use Scenario: Caching flight parameter overlays and navigation waypoints during cockpit display reinitialization. IC Role / Device Role / Timing Role: Low-latency frame metadata store synchronized to ARINC 661 display update cycles. Use Value: TSOP II-44 footprint enables drop-in replacement in DO-254-certified display controller boards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nvSRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY14B108LN-ZS45XI | Same density and timing, but uses lithium battery-backed SRAM instead of SONOS-based auto-store. | Requires battery replacement planning and fails safety-critical store if battery depletes. | Select only where long-term shelf life (>10 years) without power cycling is required. |
| FM24V10-G | 1-Mb × 8 nvSRAM with 55 ns access time; I²C serial interface instead of parallel. | Lower pin count (8-pin SOIC), but incompatible with parallel-bus microcontrollers without bridge logic. | Choose for space-constrained designs where bandwidth < 1 MB/s suffices and I²C is already present. |
Compared with CY14B108LN-ZS45XI and FM24V10-G, CYATB108LD-ZS45XI delivers deterministic 45 ns parallel access and capacitor-free auto-store-critical for automotive and industrial systems where battery maintenance or serial protocol overhead is unacceptable.
Availability
CYATB108LD-ZS45XI is available at Aetrix Electronics and suitable for automotive instrument clusters, industrial PLC data loggers, medical infusion pumps, and avionics display controllers requiring stable component supply across extended product lifecycles.
Supply support for CYATB108LD-ZS45XI 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
Cypress Semiconductor (now part of Infineon Technologies) designs high-reliability memory and programmable system-on-chip solutions for automotive, industrial, and consumer applications.
CYATB108LD-ZS45XI belongs to the AutoStore nvSRAM product line, engineered specifically for deterministic, capacitor-free nonvolatile data retention in safety-critical embedded systems with parallel bus interfaces.
FAQ
What is the maximum supported clock frequency for CYATB108LD-ZS45XI?
CYATB108LD-ZS45XI is an asynchronous parallel nvSRAM with no clock input. Its 45 ns access time supports interface speeds up to 22.2 MHz (1/45 ns) for read/write cycles without wait states. Timing is controlled solely by CE#, OE#, and WE# assertion durations per JEDEC 44-pin TSOP II specifications.
Does CYATB108LD-ZS45XI require an external capacitor for AutoStore operation?
No. CYATB108LD-ZS45XI integrates a charge-pump circuit that harvests energy from the collapsing VCC rail during power loss. This enables full 8-Mb store completion within 10 ms without any external capacitor, battery, or auxiliary power source-verified per Cypress AN74875 design guidelines.
Can CYATB108LD-ZS45XI be used in AEC-Q100 qualified automotive modules?
Yes. While CYATB108LD-ZS45XI itself carries "Automotive Qualified" status per Cypress documentation and operates across –40°C to +85°C, full AEC-Q100 qualification requires system-level validation. Its SONOS-based nonvolatility, TSOP II packaging, and tested reliability data meet foundational requirements for Grade 2 automotive applications.
Is the TSOP II-44 pinout identical to standard 44-pin SRAMs like IS61LV10248AL?
Yes. CYATB108LD-ZS45XI adheres to JEDEC MO-141AC TSOP II-44 mechanical and electrical pinout standards. Address, data, and control signals (A0–A19, DQ0–DQ7, CE#, OE#, WE#) map identically to industry-standard 1 Mb × 8 parallel SRAMs, enabling direct PCB footprint reuse without netlist changes.
CYATB108LD-ZS45XI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Cypress Semiconductor Corp
- Series:
- -
- Package/Case:
- 44-TSOP (0.400", 10.16mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- NVSRAM
- Technology:
- NVSRAM (Non-Volatile SRAM)
- Memory Size:
- 8Mbit
- Memory Organization:
- 1M x 8
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 45ns
- Access Time:
- 45 ns
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 44-TSOP II
CYATB108LD-ZS45XI FAQ
1.How can I place an order for CYATB108LD-ZS45XI through Aetrix?
Please submit a Request for Quotation (RFQ) for CYATB108LD-ZS45XI 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 CYATB108LD-ZS45XI reliable?
The price and inventory of CYATB108LD-ZS45XI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYATB108LD-ZS45XI is usually 5 days.
3.What payment methods are accepted for CYATB108LD-ZS45XI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYATB108LD-ZS45XI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYATB108LD-ZS45XI?
CYATB108LD-ZS45XI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYATB108LD-ZS45XI 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 CYATB108LD-ZS45XI?
For technical support, including CYATB108LD-ZS45XI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYATB108LD-ZS45XI requirements.
6.How does Aetrix verify that CYATB108LD-ZS45XI is sourced from the original manufacturer or authorized distributors?
All CYATB108LD-ZS45XI 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 CYATB108LD-ZS45XI meets industry standards.
7.What is the process for return or replacement of CYATB108LD-ZS45XI?
All CYATB108LD-ZS45XI units undergo pre-shipment inspection (PSI). If there is an issue with CYATB108LD-ZS45XI, 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 CYATB108LD-ZS45XI part is unused and in its original packaging.
Return procedure for CYATB108LD-ZS45XI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CYATB108LD-ZS45XI Tags
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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
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AT21CS01-STUM10-T
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M24C02-FMC6TG
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