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Infineon Technologies CY62128ELL-55ZAXET
- Part No.:
- CY62128ELL-55ZAXET
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 32-TFSOP (0.465", 11.80mm Width)
- Datasheet:
-
CY62128ELL-55ZAXET.pdf
- Description:
- IC SRAM 1MBIT PARALLEL 32STSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,599
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Product details
Overview
CY62128ELL-55ZAXET from Cypress Semiconductor is a 1-Mbit (128 K × 8) CMOS static RAM with 45 ns access time (Industrial/Automotive-A grade), 4.5–5.5 V supply range, and ultra-low standby current (1 µA typical). It features dual chip enables (CE1/CE2), automatic power-down on deselect, and TTL-level I/O compatibility-designed for battery-powered portable systems requiring reliable non-volatile data retention during sleep modes.
For engineers reviewing the CY62128ELL-55ZAXET datasheet, CY62128ELL-55ZAXET pinout, CY62128ELL-55ZAXET application, or CY62128ELL-55ZAXET equivalent, key selection criteria include its 32-pin TSOP-I package, dual CE architecture for memory expansion, guaranteed 55 ns access in Automotive-E temperature range (–40 °C to +125 °C), and CMOS-compatible input thresholds with TTL output drive capability.
Technical Context
The CY62128ELL-55ZAXET implements a 128K × 8 asynchronous SRAM array with complementary metal oxide semiconductor (CMOS) process technology, enabling high-speed operation at 55 ns tAA while maintaining ultra-low active current (1.3 mA typical at 1 MHz). Its dual chip enable (CE1 LOW and CE2 HIGH) logic supports hierarchical memory mapping and seamless bank expansion.
Automatic power-down activates when CE1 is HIGH or CE2 is LOW, reducing ICCDR to ≤30 µA in Automotive-E grade. The device uses TTL-compatible input voltage thresholds (VIH ≥ 2.2 V, VIL ≤ 0.8 V) and delivers VOH ≥ 2.4 V at IOH = –1 mA, ensuring interoperability with legacy 5 V microcontrollers and DSPs without level-shifting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 128 K × 8 bits - provides 1 Mbit of fast, non-refreshing random-access storage for firmware buffers or real-time data logging. |
| Access Time (tAA) | 55 ns max (Automotive-E) - guarantees deterministic read latency for time-critical control loops in engine ECUs or ADAS sensors. |
| Supply Voltage Range | 4.5 V to 5.5 V - supports direct connection to standard 5 V rail without regulation, compatible with industrial power supplies. |
| Standby Current (ISB2) | 1 µA typical / 30 µA max (Automotive-E) - enables multi-year battery life in always-on telematics modules. |
| Operating Current (ICC) | 1.3 mA typical at 1 MHz - minimizes thermal load in compact enclosures like medical handhelds or IoT gateways. |
| Temperature Range | –40 °C to +125 °C (Automotive-E) - qualified for under-hood automotive applications per AEC-Q100 stress requirements. |
| I/O Interface | TTL-compatible inputs, CMOS-compatible outputs - interfaces directly with legacy 5 V MCUs (e.g., Intel 8051, TI MSP430) without external translators. |
Pinout & Package
Package: 32-pin Thin Small Outline Package (TSOP) Type I, 11.8 mm × 10.0 mm × 1.0 mm body, lead pitch 0.5 mm, RoHS-compliant Pb-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus supporting full 128K-word addressing; no internal latching - requires stable address during CE/OE assertion. |
| I/O0–I/O7 | Bidirectional Data Bus | 8-bit multiplexed data path; enters high-impedance state when CE1 HIGH/CE2 LOW, OE HIGH, or WE LOW during write. |
| CE1, CE2 | Dual Chip Enable Inputs | Active-LOW CE1 AND active-HIGH CE2 required for selection; enables hierarchical decoding and memory banking without external logic. |
| OE | Output Enable | Active-LOW control for read data gating; independent of CE state - allows output disable while chip remains selected. |
| WE | Write Enable | Active-LOW signal initiating write cycle; timing-critical edge must overlap valid address and data setup/hold windows. |
| VCC, VSS | Power Supply Pins | VCC = 4.5–5.5 V; VSS = ground reference; decoupling capacitor (0.1 µF) required within 10 mm of VCC pin for noise immunity. |
| NC | No Connect | Pin 27 (A15) is NC - not bonded on die; must be left unconnected or tied to GND per layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| MoBL® Ultra-Low Power Architecture | Reduces standby current by >99% vs. standard SRAMs, enabling multi-year operation on coin-cell batteries in remote sensors. |
| Dual Chip Enable (CE1/CE2) | Enables seamless 2× memory expansion using only one additional address line - eliminates need for external decode logic in stacked RAM designs. |
| Automatic Power-Down Mode | Activates instantly on CE deassertion, eliminating software-controlled sleep entry sequences and reducing firmware complexity. |
| TTL-Level Input Compatibility | Accepts VIH ≥ 2.2 V and VIL ≤ 0.8 V - interoperable with legacy 5 V microcontrollers without level shifters or pull-up resistors. |
| Guaranteed 55 ns Access in Automotive-E Grade | Validated across –40 °C to +125 °C ambient - ensures deterministic timing in engine control units exposed to thermal cycling. |
Applications
| Automotive Engine Control Unit (ECU) | Portable Medical Monitor |
|---|---|
Use Scenario: Real-time storage of sensor calibration tables and fault logs during engine runtime and ignition-off periods. IC Role / Device Role / Timing Role: Asynchronous SRAM buffer interfacing directly with 8051-based ECU MCU via 8-bit data bus and 17-bit address lines. Use Value: 55 ns access time ensures zero-cycle-wait reads for lookup tables; 30 µA max standby current preserves battery charge during vehicle dormancy. |
Use Scenario: Temporary storage of waveform samples (ECG, SpO₂) before compression and wireless transmission in handheld diagnostic devices. IC Role / Device Role / Timing Role: High-speed data capture buffer synchronized to ADC sampling clock, accessed by ARM Cortex-M0+ processor. Use Value: 1.3 mA typical active current minimizes thermal rise in sealed plastic housing; TSOP-I package enables compact PCB layout. |
| Industrial PLC I/O Module | Smart Meter Data Logger |
Use Scenario: Holding configuration parameters and transient I/O status snapshots during brown-out events in programmable logic controllers. IC Role / Device Role / Timing Role: Non-volatile shadow RAM retaining critical state data when main 5 V rail drops below 4.5 V. Use Value: Guaranteed data retention down to VCC = 2.0 V with ≤30 µA current draw - extends safe shutdown window by >100 ms. |
Use Scenario: Cyclic buffering of hourly energy consumption records in ANSI C12.19-compliant utility meters operating on lithium-thionyl chloride cells. IC Role / Device Role / Timing Role: Low-leakage memory storing 30 days of interval data before upload via RF or PLC interface. Use Value: 1 µA typical ISB2 enables >15-year battery life; Automotive-E temperature rating ensures reliability in outdoor meter enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar asynchronous SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISSI IS62WV1288BLL-55QLI | 55 ns access, same 128K × 8 organization, but uses single CE and operates at 2.7–3.6 V only. | Requires level-shifting for 5 V systems; unsuitable for direct replacement in existing 5 V designs. | Select only if migrating to 3.3 V architecture and redesigning power delivery and I/O interface. |
| ON Semiconductor NVSRAM NVTFS1288L-55Z | Integrated EEPROM backup; 55 ns SRAM access but higher standby current (100 µA typical) and larger 48-pin TSSOP package. | Provides non-volatility without external backup circuitry - adds cost and board area but eliminates data loss risk on power failure. | Choose when data persistence across unlimited power cycles is mandatory, and 100 µA standby is acceptable. |
Compared with IS62WV1288BLL-55QLI and NVTFS1288L-55Z, the CY62128ELL-55ZAXET uniquely delivers 5 V native operation, dual CE expandability, and sub-µA standby in a 32-pin TSOP - making it optimal for cost-sensitive, space-constrained 5 V automotive and industrial upgrades.
Availability
CY62128ELL-55ZAXET is available at Aetrix Electronics and suitable for automotive engine control units, portable medical monitors, and industrial PLC I/O modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CY62128ELL-55ZAXET 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 microcontroller solutions for automotive, industrial, and consumer applications, with headquarters in San Jose, CA.
The CY62128E MoBL® product line targets portable and battery-operated systems requiring ultra-low-power, high-speed SRAM with robust temperature performance - specifically engineered for extended-life telemetry, sensor nodes, and automotive subsystems.
FAQ
Is CY62128ELL-55ZAXET pin-compatible with CY62128B series devices?
Yes, CY62128ELL-55ZAXET is explicitly pin-compatible with CY62128B devices per Cypress documentation. It retains identical 32-pin TSOP-I pinout, address/data bus mapping, and CE/OE/WE signal assignments - enabling drop-in replacement without PCB revision. However, the newer device offers improved standby current (1 µA vs. 5 µA typical) and tighter AC timing specifications.
What is the maximum data retention voltage (VDR) for CY62128ELL-55ZAXET?
The maximum data retention voltage (VDR) is 2.0 V minimum across all grades. At this voltage, the device maintains stored data with ICCDR ≤30 µA (Automotive-E) while CE1 is HIGH or CE2 is LOW. Data retention is guaranteed for indefinite duration as long as VCC remains ≥VDR and ambient temperature stays within rated range.
Can CY62128ELL-55ZAXET interface directly with a 3.3 V microcontroller?
No - CY62128ELL-55ZAXET requires 4.5–5.5 V VCC and has TTL-compatible inputs (VIH ≥ 2.2 V), but its outputs swing to VOH ≥ 2.4 V at –1 mA, which may not meet 3.3 V MCU VIH minimums (typically 2.0 V). Direct interface risks marginal logic-high recognition; a level translator or voltage divider is required for reliable operation.
Does CY62128ELL-55ZAXET support byte-wide writes?
No - CY62128ELL-55ZAXET lacks individual byte-write enable pins. All eight I/O lines (I/O0–I/O7) operate as a unified 8-bit bus; writes always affect the full byte at the addressed location. To modify single bytes, the host processor must read-modify-write the entire word, increasing software overhead and bus traffic.
CY62128ELL-55ZAXET Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- MOBL™
- Package/Case:
- 32-TFSOP (0.465", 11.80mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Asynchronous
- Memory Size:
- 1Mbit
- Memory Organization:
- 128K x 8
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 55ns
- Access Time:
- 55 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-sTSOP
CY62128ELL-55ZAXET FAQ
1.How can I place an order for CY62128ELL-55ZAXET through Aetrix?
Please submit a Request for Quotation (RFQ) for CY62128ELL-55ZAXET 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 CY62128ELL-55ZAXET reliable?
The price and inventory of CY62128ELL-55ZAXET are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY62128ELL-55ZAXET is usually 5 days.
3.What payment methods are accepted for CY62128ELL-55ZAXET?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY62128ELL-55ZAXET transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY62128ELL-55ZAXET?
CY62128ELL-55ZAXET orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY62128ELL-55ZAXET 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 CY62128ELL-55ZAXET?
For technical support, including CY62128ELL-55ZAXET datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY62128ELL-55ZAXET requirements.
6.How does Aetrix verify that CY62128ELL-55ZAXET is sourced from the original manufacturer or authorized distributors?
All CY62128ELL-55ZAXET 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 CY62128ELL-55ZAXET meets industry standards.
7.What is the process for return or replacement of CY62128ELL-55ZAXET?
All CY62128ELL-55ZAXET units undergo pre-shipment inspection (PSI). If there is an issue with CY62128ELL-55ZAXET, 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 CY62128ELL-55ZAXET part is unused and in its original packaging.
Return procedure for CY62128ELL-55ZAXET:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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