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Infineon Technologies CY62148ELL-55SXI
- Part No.:
- CY62148ELL-55SXI
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 32-SOIC (0.445", 11.30mm Width)
- Datasheet:
-
CY62148ELL-55SXI.pdf
- Description:
- IC SRAM 4MBIT PARALLEL 32SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,915
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Product details
Overview
CY62148ELL-55SXI from Infineon Technologies (formerly Cypress) is a 4-Mbit (512K × 8) CMOS static RAM designed for low-power embedded memory applications. It operates at 4.5–5.5 V, delivers 45 ns access time, draws only 2.5 µA typical standby current, and features automatic CE-controlled power-down. It serves as main data buffer in portable industrial controllers requiring battery longevity and TTL-level compatibility.
For engineers reviewing the CY62148ELL-55SXI datasheet, CY62148ELL-55SXI pinout, CY62148ELL-55SXI application, or CY62148ELL-55SXI equivalent, key selection criteria include its 32-pin TSOP II package, 512K × 8 organization, MoBL® ultra-low ISB2 spec, TTL-compatible I/O thresholds, and CE/OE/WE control interface for seamless microcontroller integration.
Technical Context
The CY62148ELL-55SXI implements a full CMOS 512K × 8 SRAM array with independent address decoding, sense amplifiers, and input/output buffers. Its automatic power-down logic activates when CE is HIGH and all inputs are stable at CMOS levels, reducing ICC to ≤7 µA (industrial range).
It supports three operational modes: active read (CE=LOW, OE=LOW, WE=HIGH), active write (CE=LOW, WE=LOW), and standby (CE=HIGH). Output drivers enter high-Z state during deselect, OE=HIGH, or write cycles-ensuring bus isolation without external tri-state logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 4 Mbit (512K words × 8 bits); provides byte-wide data path compatible with 8-bit microcontrollers and legacy peripherals. |
| Access Time | 45 ns (max); enables direct interfacing with 10–15 MHz system buses without wait states. |
| VCC Range | 4.5 V to 5.5 V; matches standard 5 V TTL logic rails and accommodates ±10% supply tolerance. |
| Standby Current | 2.5 µA typical / 7 µA max (industrial −40°C to +85°C); reduces battery drain by >99% vs active mode. |
| Active Current | 3.5 mA typical at 1 MHz; supports burst reads/writes in low-duty-cycle sensor logging systems. |
| I/O Voltage Thresholds | VIH = 2.2 V min, VIL = 0.8 V max (TSOP II); ensures reliable recognition of TTL output levels from MCUs like 8051 or PIC18. |
| Data Retention Voltage | VDR ≥ 2.0 V; allows memory contents to persist during brown-out or controlled shutdown sequences. |
Pinout & Package
Package: 32-pin Thin Small Outline Package (TSOP II), 12.0 mm × 20.0 mm body, 0.5 mm lead pitch, JEDEC MO-143AC compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A18 | Address Inputs | 19-bit address bus supporting full 512K-word addressing; A18 selects upper/lower half of memory space. |
| I/O0–I/O7 | Bidirectional Data Bus | 8-bit parallel data path; enters high-Z when CE=HIGH, OE=HIGH, or WE=LOW to prevent bus contention. |
| CE | Chip Enable | Active-LOW enable; drives device into automatic power-down mode when HIGH, cutting ICC to µA range. |
| OE | Output Enable | Active-LOW control for read data output; disables outputs (high-Z) when HIGH, enabling shared bus operation. |
| WE | Write Enable | Active-LOW signal initiating write cycle; latches data on I/O0–I/O7 when CE and WE both LOW. |
| VCC | Power Supply | +4.5 V to +5.5 V core supply; decoupling capacitor required within 10 mm of pin per layout guidelines. |
| VSS | Ground | Signal and power ground reference; must be connected to low-impedance PCB plane for noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| MoBL® Ultra-Low Standby Power | 2.5 µA typical ISB2 enables multi-year battery life in remote data loggers and handheld test equipment. |
| Automatic CE-Controlled Power-Down | Enters sub-µA retention state within 45 ns of CE deassertion-no software or external logic required. |
| TTL-Compatible Input Levels | VIH = 2.2 V min and VIL = 0.8 V max ensure interoperability with legacy 5 V microcontrollers and FPGAs. |
| High-Z Output Control | Three independent conditions (CE HIGH, OE HIGH, WE LOW) force I/O pins to high impedance-eliminates need for external bus transceivers. |
| Pb-Free TSOP II Packaging | RoHS-compliant 32-pin TSOP II (JEDEC MO-143AC) supports automated SMT assembly and thermal cycling reliability. |
Applications
| Portable Medical Monitor | Industrial PLC I/O Module |
|---|---|
|
Use Scenario: Stores real-time ECG waveform samples between host MCU transfers in battery-powered patient monitors. IC Role / Device Role / Timing Role: Byte-addressable SRAM buffer with 45 ns access, holding up to 512 KB of raw sensor data before USB/UART upload. Use Value: 2.5 µA standby current extends single-AA battery life beyond 18 months in sleep mode between measurements. |
Use Scenario: Holds configuration registers and transient process values in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile shadow RAM (paired with EEPROM) for fast read/write of ladder logic variables during scan cycles. Use Value: TTL-level compatibility eliminates level-shifter components when interfacing with legacy 5 V CPLD-based control logic. |
| Smart Energy Meter | Automotive Diagnostic Tool |
|
Use Scenario: Buffers pulse-count data from kWh metering ICs during power interruptions and firmware updates. IC Role / Device Role / Timing Role: Data retention SRAM retaining critical billing data down to VCC = 2.0 V during brown-out events. Use Value: VDR ≥ 2.0 V and ICCDR ≤ 8.8 µA ensure meter integrity across 100+ ms grid dips without backup capacitor oversizing. |
Use Scenario: Caches OBD-II protocol response tables and live PID buffers in handheld vehicle diagnostic scanners. IC Role / Device Role / Timing Role: Low-latency scratchpad memory for rapid CAN message parsing and display refresh cycles. Use Value: 45 ns tAA and high-Z I/O enable deterministic 10 ms UI update latency even under concurrent CAN bus traffic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISSI IS62WV5128BLL-45NLI | Same 512K × 8 organization, 45 ns speed, but requires 2.7–3.6 V supply; CMOS I/O thresholds (VIH = 2.0 V min). | Designed for 3.3 V systems; incompatible with 5 V TTL buses without level translation. | Select only if migrating to 3.3 V platform and redesigning power and interface circuitry. |
| Renesas R1LV5256ES-5SI#U0 | 512K × 8, 55 ns access, 4.5–5.5 V operation, but higher ISB2 = 15 µA max (industrial) and no automatic CE power-down. | Lacks dynamic power gating; requires external logic or firmware to manage standby state. | Acceptable for cost-sensitive designs where µA-level standby is non-critical and board space permits discrete control. |
Compared with IS62WV5128BLL-45NLI and R1LV5256ES-5SI#U0, CY62148ELL-55SXI uniquely combines 5 V TTL compatibility, 45 ns speed, and autonomous µA standby-making it optimal for drop-in replacement in legacy 5 V embedded systems requiring zero-modification power optimization.
Availability
CY62148ELL-55SXI is available at Aetrix Electronics and suitable for portable medical monitors, industrial PLC I/O modules, smart energy meters, and automotive diagnostic tools requiring stable component supply across extended product lifecycles.
Supply support for CY62148ELL-55SXI 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
Infineon Technologies is a global semiconductor leader headquartered in Munich, Germany, specializing in power management, sensing, connectivity, and memory solutions for industrial, automotive, and IoT markets.
CY62148ELL-55SXI belongs to Infineon's MoBL® (More Battery Life™) SRAM product line, engineered specifically for ultra-low-power data buffering in battery-constrained portable and remote monitoring systems.
FAQ
Is CY62148ELL-55SXI pin-compatible with CY62148B?
Yes, CY62148ELL-55SXI is explicitly stated as pin-compatible with CY62148B in the official datasheet. Both share identical 32-pin TSOP II pinout, address/data/control signal mapping, and functional behavior-enabling direct replacement without PCB modification.
Does this SRAM support true CMOS input levels?
No. The CY62148ELL-55SXI is specified for TTL-level interfaces: VIH = 2.2 V min and VIL = 0.8 V max (TSOP II). It is not guaranteed to operate reliably with pure CMOS inputs (e.g., VIH = 3.5 V min), and the datasheet recommends alternatives like AN6081 for 5 V legacy processor interfacing.
What is the maximum operating frequency supported?
The device does not specify a clock frequency; it is an asynchronous SRAM. Its 45 ns access time supports effective bus rates up to ~10 MHz for read cycles (tRC = 45 ns), assuming clean signal edges and proper termination-no internal clock or timing controller is present.
Can CY62148ELL-55SXI retain data below 4.5 V?
Yes. Data retention is guaranteed down to VDR ≥ 2.0 V, with ICCDR ≤ 8.8 µA (industrial range). This allows memory contents to persist during brown-out conditions or controlled low-voltage shutdown, provided CE remains HIGH and VCC stays ≥2.0 V.
CY62148ELL-55SXI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- MOBL™
- Package/Case:
- 32-SOIC (0.445", 11.30mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Asynchronous
- Memory Size:
- 4Mbit
- Memory Organization:
- 512K 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-SOIC
CY62148ELL-55SXI FAQ
1.How can I place an order for CY62148ELL-55SXI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY62148ELL-55SXI 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 CY62148ELL-55SXI reliable?
The price and inventory of CY62148ELL-55SXI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY62148ELL-55SXI is usually 5 days.
3.What payment methods are accepted for CY62148ELL-55SXI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY62148ELL-55SXI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY62148ELL-55SXI?
CY62148ELL-55SXI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY62148ELL-55SXI 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 CY62148ELL-55SXI?
For technical support, including CY62148ELL-55SXI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY62148ELL-55SXI requirements.
6.How does Aetrix verify that CY62148ELL-55SXI is sourced from the original manufacturer or authorized distributors?
All CY62148ELL-55SXI 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 CY62148ELL-55SXI meets industry standards.
7.What is the process for return or replacement of CY62148ELL-55SXI?
All CY62148ELL-55SXI units undergo pre-shipment inspection (PSI). If there is an issue with CY62148ELL-55SXI, 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 CY62148ELL-55SXI part is unused and in its original packaging.
Return procedure for CY62148ELL-55SXI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY62148ELL-55SXI Tags
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