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Infineon Technologies CY62148ELL-55SXIT
- Part No.:
- CY62148ELL-55SXIT
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 32-SOIC (0.445", 11.30mm Width)
- Datasheet:
-
CY62148ELL-55SXIT.pdf
- Description:
- IC SRAM 4MBIT PARALLEL 32SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,718
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Product details
Overview
CY62148ELL-55SXIT from Infineon Technologies (formerly Cypress) is a 4-Mbit (512K × 8) CMOS static RAM with 45 ns access time, 4.5–5.5 V supply range, and ultra-low standby current (2.5 µA typical). It operates in industrial temperature range (–40 °C to +85 °C), features automatic CE-controlled power-down, and is pin-compatible with CY62148B for drop-in replacement in legacy memory subsystems.
For engineers reviewing the CY62148ELL-55SXIT datasheet, CY62148ELL-55SXIT pinout, CY62148ELL-55SXIT application, or CY62148ELL-55SXIT equivalent, key selection criteria include TTL-level I/O compatibility, 32-pin TSOP II package constraints, data retention at ≥2.0 V, and active current of 3.5 mA at 1 MHz - critical for battery-powered MoBL® designs.
Technical Context
The CY62148ELL-55SXIT 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 at valid CMOS levels, reducing ICC to ≤7 µA (max) without external control.
It supports three primary access modes: read (CE & OE LOW, WE HIGH), write (CE & WE LOW), and high-impedance tri-state (CE HIGH or OE HIGH or WE LOW during write). Output drive meets TTL voltage thresholds (VOH ≥ 2.4 V at IOH = –1 mA), enabling direct interfacing with legacy 5 V microcontrollers and DSPs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 4 Mbit (512K words × 8 bits); provides byte-wide data bus interface for 8-bit processors and peripherals. |
| Access time | 45 ns max; enables reliable operation with 22 MHz system clocks and tight timing margins in real-time control systems. |
| VCC range | 4.5 V to 5.5 V; compatible with standard 5 V regulated supplies and tolerant of ±10% ripple or aging drift. |
| Standby current | 2.5 µA typical / 7 µA max (industrial); extends battery life in portable instrumentation and handheld terminals. |
| Active current | 3.5 mA typical at f = 1 MHz; allows low-power continuous polling in sensor data loggers without thermal throttling. |
| Data retention voltage | ≥2.0 V; permits memory state hold during brown-out or backup-battery switchover without external supervision. |
| Package | 32-pin TSOP II (thin small outline package); surface-mount compatible with automated PCB assembly and space-constrained modules. |
Pinout & Package
Package: 32-pin Thin Small Outline Package (TSOP II), JEDEC MO-141AC compliant, body width 10.16 mm, lead pitch 0.5 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A18 | Address inputs | 19-bit address bus supporting full 512K-word addressing; A0 = LSB, A18 = MSB. |
| I/O0–I/O7 | Bidirectional data bus | 8-bit parallel interface; high-impedance when CE HIGH, OE HIGH, or during write (WE LOW). |
| CE | Chip enable | Active-LOW enable; drives automatic power-down when HIGH at CMOS level (VIL ≤ 0.8 V, VIH ≥ 2.2 V). |
| OE | Output enable | Active-LOW control for output buffer; does not affect power state but gates data onto I/O pins. |
| WE | Write enable | Active-LOW write strobe; initiates write cycle when CE is also LOW; disables outputs during write. |
| VCC | Power supply | +4.5 V to +5.5 V; decoupling capacitor (0.1 µF ceramic) required within 5 mm of pin. |
| VSS | Ground | Digital ground reference; must be connected to low-impedance PCB plane to minimize noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| MoBL® (More Battery Life) | Ultra-low 2.5 µA typical standby current enables multi-year operation on coin-cell batteries in IoT edge nodes. |
| TTL-compatible I/O | VOH ≥ 2.4 V at –1 mA and VOL ≤ 0.4 V at 2.1 mA ensure interoperability with legacy 5 V microcontrollers without level shifters. |
| Automatic CE power-down | Reduces active-to-standby power by >99% within 45 ns after CE goes HIGH, eliminating need for external sleep controllers. |
| Pin compatibility | Direct replacement for CY62148B in existing PCB layouts, preserving signal routing and BOM continuity. |
| Data retention at 2.0 V | Maintains stored contents during brown-out events down to 2.0 V VCC, supporting graceful shutdown in power-critical systems. |
Applications
| Portable Medical Monitor | Industrial PLC Data Buffer |
|---|---|
|
Use Scenario: Real-time ECG waveform capture and local buffering before wireless transmission. IC Role / Device Role / Timing Role: Byte-wide SRAM storing 10+ seconds of sampled analog data at 1 kHz, accessed via 8-bit MCU bus. Use Value: 45 ns access enables zero-wait-state reads; 2.5 µA standby preserves battery for >72 hours between charges. |
Use Scenario: Temporary storage of I/O status and ladder logic variables during scan cycles. IC Role / Device Role / Timing Role: Non-volatile shadow RAM holding process state during brief AC mains interruption. Use Value: Data retention at 2.0 V ensures no loss during 20 ms brown-outs; 5.5 V tolerance accommodates unregulated 24 VDC-derived rails. |
| Handheld Barcode Scanner | Automotive Telematics Logger |
|
Use Scenario: Image frame buffering during laser scan and decode processing. IC Role / Device Role / Timing Role: High-speed temporary storage for 640×480 grayscale frames prior to JPEG compression. Use Value: 32-pin TSOP II fits compact scanner PCB; 3.5 mA active current avoids thermal derating in sealed enclosures. |
Use Scenario: Crash-event pre-buffering and post-impact data logging in CAN-connected ECUs. IC Role / Device Role / Timing Role: Fast-access scratchpad for timestamped sensor streams (accelerometer, GPS, CAN ID) before flash write. Use Value: TTL-level compatibility eliminates level-shifter components; industrial temp rating ensures reliability under hood conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IS61LV5128AL-10TLI | 10 ns access time, 3.3 V only, 32-pin SOIC; higher speed but incompatible voltage domain. | Requires 3.3 V system redesign; unsuitable for 5 V legacy interfaces without level translation. | Select only if migrating to 3.3 V architecture and needing faster access; not drop-in. |
| AS6C4008-55TIN | 55 ns access, 4.5–5.5 V, 32-pin TSOP II; identical voltage and package but slower timing. | Acceptable for non-real-time buffering where 45 ns is not required; lower cost in high-volume procurement. | Choose for cost-sensitive industrial controls where 55 ns timing suffices and 45 ns margin is unnecessary. |
Compared with IS61LV5128AL-10TLI and AS6C4008-55TIN, CY62148ELL-55SXIT uniquely balances 45 ns speed, 5 V TTL compatibility, and ultra-low 2.5 µA standby - making it optimal for battery-powered 5 V systems requiring both responsiveness and longevity.
Availability
CY62148ELL-55SXIT is available at Aetrix Electronics and suitable for portable medical monitors, industrial PLC data buffers, handheld barcode scanners, and automotive telematics loggers requiring stable component supply across extended product lifecycles.
Supply support for CY62148ELL-55SXIT 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 applications.
CY62148ELL-55SXIT belongs to Infineon's MoBL® (More Battery Life) SRAM product line, engineered specifically for ultra-low-power, high-reliability memory in portable and energy-constrained embedded systems.
FAQ
Is CY62148ELL-55SXIT compatible with 3.3 V microcontrollers?
No. The device requires 4.5–5.5 V VCC and features TTL-level I/O thresholds (VIH ≥ 2.2 V, VOL ≤ 0.4 V), making it incompatible with native 3.3 V logic without bidirectional level shifters. It is designed for 5 V systems such as legacy microcontrollers, DSPs, and FPGAs with 5 V I/O banks.
Does CY62148ELL-55SXIT support data retention during complete power removal?
No. Data retention requires VCC ≥ 2.0 V and CE held HIGH at CMOS level. If VCC drops below 2.0 V, stored data is lost. For true zero-power retention, an external backup battery or supercapacitor circuit must maintain VCC above 2.0 V during main power loss.
Can OE and WE be tied together for simplified control?
No. OE and WE serve distinct functions: OE controls output driver enable, while WE controls write latching. Tying them risks unintended writes during read operations or bus contention. The device requires independent control per the truth table - OE LOW/WE HIGH for read, OE HIGH/WE LOW for write disable.
What is the maximum clock frequency supported for burst reads?
The device does not support synchronous burst mode. It is an asynchronous SRAM: maximum effective throughput is limited by tRC = 45 ns, yielding ~22.2 MHz random-access bandwidth. Continuous sequential reads depend on address bus toggle rate and system bus protocol - no internal counter or burst logic is present.
CY62148ELL-55SXIT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- MOBL™
- Package/Case:
- 32-SOIC (0.445", 11.30mm Width)
- Packaging:
- Tape & Reel (TR)
- 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-55SXIT FAQ
1.How can I place an order for CY62148ELL-55SXIT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY62148ELL-55SXIT 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-55SXIT reliable?
The price and inventory of CY62148ELL-55SXIT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY62148ELL-55SXIT is usually 5 days.
3.What payment methods are accepted for CY62148ELL-55SXIT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY62148ELL-55SXIT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY62148ELL-55SXIT?
CY62148ELL-55SXIT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY62148ELL-55SXIT 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-55SXIT?
For technical support, including CY62148ELL-55SXIT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY62148ELL-55SXIT requirements.
6.How does Aetrix verify that CY62148ELL-55SXIT is sourced from the original manufacturer or authorized distributors?
All CY62148ELL-55SXIT 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-55SXIT meets industry standards.
7.What is the process for return or replacement of CY62148ELL-55SXIT?
All CY62148ELL-55SXIT units undergo pre-shipment inspection (PSI). If there is an issue with CY62148ELL-55SXIT, 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-55SXIT part is unused and in its original packaging.
Return procedure for CY62148ELL-55SXIT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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