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Infineon Technologies CY62128ELL-45ZXA
- Part No.:
- CY62128ELL-45ZXA
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 32-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
CY62128ELL-45ZXA.pdf
- Description:
- IC SRAM 1MBIT PARALLEL 32TSOP I
- Quantity:
- Payment:
- Shipping:
Inventory:2,287
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Product details
Overview
CY62128ELL-45ZXA from Cypress Semiconductor is a 1-Mbit (128 K × 8) CMOS static RAM with 45 ns access time, 4.5–5.5 V supply voltage, 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-sensitive portable systems requiring fast, low-power memory buffering.
For engineers reviewing the CY62128ELL-45ZXA datasheet, CY62128ELL-45ZXA pinout, CY62128ELL-45ZXA application, or CY62128ELL-45ZXA equivalent, key selection criteria include industrial temperature support (–40 °C to +85 °C), STSOP-32 package footprint, CE/OE/WE control logic timing, and MoBL®-optimized active/standby current trade-offs.
Technical Context
The CY62128ELL-45ZXA implements a 128K × 8 asynchronous SRAM architecture with complementary metal oxide semiconductor (CMOS) process technology. Its dual chip enable (CE1 LOW + CE2 HIGH) and output enable (OE LOW) control logic enables seamless integration into microprocessor buses without external glue logic.
It supports automatic power-down when CE1 is HIGH or CE2 is LOW, reducing ICC to ≤4 µA (max) in standby. The device guarantees tAA = 45 ns and tDOE = 22 ns under 100 pF load at VCC = 4.5–5.5 V, meeting TTL input threshold requirements (VIH ≥ 2.2 V, VIL ≤ 0.8 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 128 K × 8 bits - provides 131,072 bytes of byte-addressable, non-volatile-retention SRAM space |
| Access Time (tAA) | 45 ns max - ensures compatibility with 10–12 MHz bus clocks in legacy embedded controllers |
| Supply Voltage | 4.5 V to 5.5 V - supports standard 5 V TTL system rails with ±10% tolerance |
| Standby Current (ISB2) | 1 µA typical / 4 µA max - enables multi-year battery life in always-on portable instrumentation |
| Operating Current (ICC) | 1.3 mA typical at 1 MHz - delivers low dynamic power during burst read/write cycles |
| Temperature Range | –40 °C to +85 °C - qualified for industrial and automotive-A environments per AEC-Q100 stress profiles |
| Package | 32-pin STSOP (0.4 mm pitch, 10.16 mm × 12.7 mm) - surface-mount compatible with high-density PCB layouts |
Pinout & Package
Package: 32-pin Shrink Thin Small Outline Package (STSOP), JEDEC MO-219AC compliant, 0.4 mm lead pitch, 10.16 mm × 12.7 mm body size, exposed pad optional.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus supporting full 128K-word decoding; no internal latching |
| I/O0–I/O7 | Bidirectional Data Bus | 8-bit TTL-compatible data path; high-impedance when CE1 HIGH or CE2 LOW or OE HIGH |
| CE1, CE2 | Chip Enable Inputs | Active-LOW CE1 AND active-HIGH CE2 required for device selection; enables hierarchical memory expansion |
| OE | Output Enable | Active-LOW control for read-data output gating; independent of write cycle |
| WE | Write Enable | Active-LOW signal initiating write operation; data latched on WE falling edge |
| VCC, VSS | Power Supply | VCC = 4.5–5.5 V; VSS = ground reference; decoupling required within 10 mm of pins 16 and 17 |
| NC | No Connect | Pins 26 and 27 are unconnected on die; must be left floating 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 battery-backed real-time clock buffers |
| Dual Chip Enable Logic | Supports daisy-chained memory banks using CE1/CE2 as hierarchical select lines without external logic |
| TTL-Level Input Compatibility | Accepts VIH ≥ 2.2 V and VIL ≤ 0.8 V - interoperable with legacy 8051, Z80, and 68K-based controllers |
| Automatic Power-Down | Enters sub-µA retention mode within 45 ns of CE deassertion (tPD), eliminating need for software sleep commands |
| High-Speed Read Timing | tDOE = 22 ns ensures valid data within one clock cycle of OE assertion on 40+ MHz microcontrollers |
Applications
| Portable Medical Monitors | Industrial PLC Data Buffers |
|---|---|
|
Use Scenario: Continuous ECG waveform capture and local display buffering in handheld patient monitors. IC Role / Device Role / Timing Role: Asynchronous SRAM buffer between analog front-end ADC and low-power ARM Cortex-M4 processor. Use Value: 45 ns access time enables real-time 1 kHz sampling without DMA bottlenecks; 1 µA standby extends single-CR2032 battery life to >3 years. |
Use Scenario: Storing I/O status snapshots and ladder logic intermediate variables in DIN-rail mounted PLCs. IC Role / Device Role / Timing Role: Non-volatile-retention scratchpad memory for deterministic scan-cycle execution under brownout conditions. Use Value: Automatic power-down on bus idle reduces thermal load in sealed enclosures; –40 °C to +85 °C rating ensures reliability across factory floors. |
| Automotive Infotainment UI Cache | Test & Measurement Equipment FIFO |
|
Use Scenario: Caching GUI bitmaps and touch event queues in head-unit displays operating in vehicle cabins. IC Role / Device Role / Timing Role: Byte-accessible frame buffer supporting partial screen refreshes via parallel 8-bit bus. Use Value: TTL-compatible I/O eliminates level-shifter components; Automotive-A qualification meets ISO/TS 16949 environmental stress requirements. |
Use Scenario: High-speed acquisition buffering in portable oscilloscopes capturing transient signals at 10 MS/s. IC Role / Device Role / Timing Role: First-in-first-out data staging between ADC and USB 2.0 controller. Use Value: 45 ns tAA and 22 ns tDOE allow back-to-back reads at >20 MB/s sustained throughput; STSOP package enables compact 4-layer board design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISSI IS62WV1288BLL-45NLI | 45 ns access, same 128K × 8 organization, but 2.7–3.6 V only; no 5 V support | Requires level-shifting in 5 V systems; unsuitable for direct TTL interface | Select only if migrating to 3.3 V system architecture with existing PCB redesign |
| ON Semiconductor MCM62C128B-45 | 45 ns access, 5 V-only, but higher ISB2 (10 µA max); no automotive qualification | Lacks AEC-Q100 compliance; not rated for extended temperature operation | Acceptable for cost-sensitive commercial equipment where temperature range is limited to 0–70 °C |
Compared with IS62WV1288BLL-45NLI and MCM62C128B-45, the CY62128ELL-45ZXA uniquely combines 5 V TTL compatibility, industrial temperature range, and sub-µA standby-making it the sole choice for drop-in replacement in legacy 5 V portable and automotive systems requiring long-term component availability.
Availability
CY62128ELL-45ZXA is available at Aetrix Electronics and suitable for portable medical devices, industrial programmable logic controllers, and automotive infotainment systems requiring stable component supply across extended product lifecycles.
Supply support for CY62128ELL-45ZXA 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 solutions for industrial, automotive, and IoT applications.
The CY62128E MoBL® series was engineered specifically for battery-constrained portable electronics, delivering industry-leading standby current while maintaining TTL bus compatibility and industrial-grade thermal robustness.
FAQ
Is CY62128ELL-45ZXA pin-compatible with CY62128B?
Yes, CY62128ELL-45ZXA is fully pin-compatible with CY62128B, sharing identical 32-pin STSOP pinout, address/data bus mapping, and CE1/CE2/OE/WE control logic. No PCB redesign is needed for migration, though voltage and timing specifications differ slightly-verify VCC tolerance and tAA/tDOE margins in final layout.
What is the maximum data retention voltage (VDR) for CY62128ELL-45ZXA?
The guaranteed minimum data retention voltage is 2.0 V. At VDR = 2.0 V and ambient temperature ≤85 °C, the device retains stored data indefinitely while drawing ≤4 µA (max) ICCDR current. This enables use in battery-failover circuits where VCC drops to backup rail levels during main power loss.
Does CY62128ELL-45ZXA support CMOS-level inputs?
No. CY62128ELL-45ZXA is specified for TTL-level inputs only (VIH ≥ 2.2 V, VIL ≤ 0.8 V). It is not compatible with standard 5 V CMOS logic thresholds (VIH ≥ 3.5 V). For CMOS-interfaced systems, Cypress recommends CY62128EV33 or alternative 3.3 V SRAMs with appropriate level translation.
Can NC pins (26 and 27) be tied to ground?
Yes, pins 26 and 27 are No Connect (NC) and may be left floating or tied to ground per PCB layout best practices. Cypress documentation confirms these pins are unconnected on-die and pose no electrical risk when grounded, though grounding improves mechanical stability and EMI shielding in high-vibration environments.
CY62128ELL-45ZXA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- MOBL™
- Package/Case:
- 32-TFSOP (0.724", 18.40mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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:
- 45ns
- Access Time:
- 45 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-TSOP I
CY62128ELL-45ZXA FAQ
1.How can I place an order for CY62128ELL-45ZXA through Aetrix?
Please submit a Request for Quotation (RFQ) for CY62128ELL-45ZXA 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-45ZXA reliable?
The price and inventory of CY62128ELL-45ZXA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY62128ELL-45ZXA is usually 5 days.
3.What payment methods are accepted for CY62128ELL-45ZXA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY62128ELL-45ZXA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY62128ELL-45ZXA?
CY62128ELL-45ZXA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY62128ELL-45ZXA 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-45ZXA?
For technical support, including CY62128ELL-45ZXA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY62128ELL-45ZXA requirements.
6.How does Aetrix verify that CY62128ELL-45ZXA is sourced from the original manufacturer or authorized distributors?
All CY62128ELL-45ZXA 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-45ZXA meets industry standards.
7.What is the process for return or replacement of CY62128ELL-45ZXA?
All CY62128ELL-45ZXA units undergo pre-shipment inspection (PSI). If there is an issue with CY62128ELL-45ZXA, 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-45ZXA part is unused and in its original packaging.
Return procedure for CY62128ELL-45ZXA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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