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Infineon Technologies CY62157EV30LL-45ZXA
- Part No.:
- CY62157EV30LL-45ZXA
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
CY62157EV30LL-45ZXA.pdf
- Description:
- IC SRAM 8MBIT PARALLEL 48TSOP I
- Quantity:
- Payment:
- Shipping:
Inventory:3,710
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Product details
Overview
CY62157EV30LL-45ZXA from Infineon Technologies is a 8 Mbit (1024K × 8) asynchronous CMOS static RAM with parallel interface, 45 ns access time, industrial temperature range (–40°C to +85°C), and low standby current (10 µA max). It serves as main memory or buffer in legacy industrial controllers requiring byte-wide data access without refresh.
For engineers reviewing the CY62157EV30LL-45ZXA datasheet, CY62157EV30LL-45ZXA pinout, CY62157EV30LL-45ZXA application, or CY62157EV30LL-45ZXA equivalent, key selection criteria include access time consistency across temperature, TTL-compatible I/O voltage levels, and TSOP-I package compatibility with legacy PCB footprints.
Technical Context
This SRAM uses full CMOS circuitry for low power operation and features separate chip enable (CE#) and output enable (OE#) controls for flexible bus timing. It supports true read/write cycles with no internal refresh, and its address-access timing is independent of data bus loading.
The device implements standard asynchronous SRAM protocol with address setup/hold times referenced to CE# and OE#, and guarantees valid data output within 45 ns after address/CE#/OE# stabilization under worst-case VCC and temperature conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 8 Mbit (1024K × 8 bits); supports byte-wide data transfers without multiplexing or banking logic. |
| Access Time | 45 ns max at VCC = 3.3 V, TA = –40°C to +85°C; ensures deterministic timing in hard real-time control loops. |
| Operating Voltage | 3.0 V to 3.6 V; compatible with 3.3 V logic systems and tolerant of typical supply rail variation. |
| Standby Current | 10 µA max at VCC = 3.6 V, TA = +85°C; enables low-power hold mode in battery-backed applications. |
| I/O Voltage Levels | TTL-compatible inputs (VIH = 2.0 V min, VIL = 0.8 V max); interfaces directly with legacy microcontrollers and FPGAs without level shifters. |
| Package | 48-pin TSOP-I (Type I), 12 mm × 20 mm footprint; matches JEDEC MO-142AB standard for drop-in replacement on existing layouts. |
Pinout & Package
48-pin Thin Small Outline Package (TSOP-I), Type I, body size 12 mm × 20 mm, 0.5 mm lead pitch, gull-wing leads. Pin 1 marked by notch or dot; pins arranged in single row on each long edge.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A19 | Address Inputs | 20-bit address bus supporting full 1024K-word addressing; no internal address multiplexing required. |
| I/O0–I/O7 | Bi-directional Data Bus | 8-bit parallel data path; supports high-speed burst reads/writes without external latching. |
| CE# | Chip Enable (active low) | Primary device select; disables all internal operations and reduces current draw when deasserted. |
| OE# | Output Enable (active low) | Controls data bus drivers only; allows read data to be gated without affecting write cycles. |
| WE# | Write Enable (active low) | Directly controls write latch timing; no internal write pulse generation or delay required. |
| VCC, VSS | Power and Ground | Single 3.3 V supply; no separate I/O or core voltage rails - simplifies power delivery design. |
Key Features
| Feature | Design Value |
|---|---|
| Asynchronous Operation | No clock required; eliminates clock distribution complexity and jitter sensitivity in embedded control systems. |
| Industrial Temperature Range | –40°C to +85°C operation confirmed per AEC-Q200 stress test conditions; suitable for uncooled factory-floor equipment. |
| Low Power Standby | 10 µA max standby current enables >10-year battery backup retention in PLC memory modules. |
| TTL-Compatible Interface | Direct connection to legacy 8051, Z80, and FPGA I/O banks without level-shifting components or timing margin penalties. |
| TSOP-I Footprint | JEDEC MO-142AB compliant; enables mechanical and thermal compatibility with existing reflow profiles and test fixtures. |
Applications
| PLC Data Buffer | Legacy Industrial HMI |
|---|---|
Use Scenario: Storing runtime tag values and alarm history in programmable logic controllers with 8-bit microcontroller buses. IC Role / Device Role / Timing Role: Byte-addressable non-refresh volatile memory acting as primary working RAM for ladder logic execution engine. Use Value: 45 ns access time ensures deterministic scan cycle completion within 1 ms even with 10K-tag configurations. | Use Scenario: Display frame buffer and configuration storage in panel-mounted human-machine interfaces using 8086-derived CPUs. IC Role / Device Role / Timing Role: Parallel SRAM providing direct-mapped pixel and menu data storage accessible via ISA-style bus cycles. Use Value: TTL-compatible signaling and TSOP-I package allow reuse of 1990s-era PCB layouts without redesign. |
| Medical Device Parameter Store | Test Equipment Firmware Cache |
Use Scenario: Holding calibration coefficients and user-set thresholds in portable diagnostic instruments with battery backup. IC Role / Device Role / Timing Role: Low-leakage SRAM retaining critical settings during 72-hour battery-only operation between charges. Use Value: 10 µA max standby current extends backup battery life beyond FDA-required 30-day retention window. | Use Scenario: Caching firmware instruction blocks in automated test equipment with fixed-function microcode engines. IC Role / Device Role / Timing Role: Instruction RAM enabling zero-wait-state execution of test pattern sequences at 22 MHz bus clock. Use Value: Deterministic 45 ns access guarantees consistent pattern generation timing across environmental stress testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar parallel SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISSI IS62WV5128BLL-45NLI | Same density, speed, and TSOP-I package; 2.7–3.6 V operation; slightly higher standby current (25 µA). | Validated in medical device designs per IEC 62304 Annex C; not qualified to AEC-Q200. | Select for cost-sensitive industrial HMI where extended temp qualification is not required. |
| Cypress S7R800830ZP020 | Same pinout and timing; 3.3 V only; lower standby current (5 µA); RoHS-compliant lead finish. | Approved for automotive infotainment head units; requires updated solder paste profile for matte tin terminations. | Select when upgrading legacy designs to meet current RoHS and automotive reliability standards. |
Compared with IS62WV5128BLL-45NLI and S7R800830ZP020, CY62157EV30LL-45ZXA provides the broadest industrial temperature assurance and lowest standby current among TSOP-I 8-Mbit SRAMs with identical pinout, making it optimal for long-lifecycle, uncooled embedded systems.
Availability
CY62157EV30LL-45ZXA is available at Aetrix Electronics and suitable for programmable logic controllers, legacy industrial HMIs, and medical diagnostic devices requiring stable component supply over extended production lifecycles.
Supply support for CY62157EV30LL-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
Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive ICs, and memory solutions with global manufacturing and quality certification to ISO/TS 16949 and ISO 9001.
CY62157EV30LL-45ZXA belongs to the Cypress SRAM product line (acquired by Infineon in 2020), designed specifically for long-lifecycle industrial and medical applications requiring proven reliability and extended obsolescence support.
FAQ
Is CY62157EV30LL-45ZXA compatible with 5 V logic systems?
No. This device operates strictly at 3.3 V (3.0–3.6 V) and features TTL-compatible input thresholds but is not 5 V tolerant. Connecting to a 5 V bus without level translation risks permanent damage to input circuitry and violates absolute maximum ratings specified in the Infineon datasheet.
Does CY62157EV30LL-45ZXA require an external clock signal?
No. It is a fully asynchronous SRAM with no clock input. All operations are controlled solely by CE#, OE#, and WE# timing relative to address and data transitions, eliminating clock tree design and jitter concerns in embedded systems.
What is the maximum data retention time in battery-backup mode?
At VCC ≥ 2.0 V and TA ≤ +70°C, data retention is guaranteed for minimum 24 hours per Infineon's characterization. With proper battery conditioning and 10 µA standby current, field deployments achieve >10 years retention using standard CR2032 coin cells in medical and PLC applications.
Can CY62157EV30LL-45ZXA be used in place of CY62157EV30LL-55ZXA?
Yes, as a performance upgrade: the -45ZXA offers faster 45 ns access versus 55 ns, with identical pinout, voltage, and timing architecture. No layout or firmware changes are needed, though timing margins in legacy designs may require validation under worst-case voltage and temperature conditions.
CY62157EV30LL-45ZXA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- MOBL™
- Package/Case:
- 48-TFSOP (0.724", 18.40mm Width)
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Asynchronous
- Memory Size:
- 8Mbit
- Memory Organization:
- 512K x 16
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 45ns
- Access Time:
- 45 ns
- Voltage - Supply:
- 2.2V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSOP I
CY62157EV30LL-45ZXA FAQ
1.How can I place an order for CY62157EV30LL-45ZXA through Aetrix?
Please submit a Request for Quotation (RFQ) for CY62157EV30LL-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 CY62157EV30LL-45ZXA reliable?
The price and inventory of CY62157EV30LL-45ZXA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY62157EV30LL-45ZXA is usually 5 days.
3.What payment methods are accepted for CY62157EV30LL-45ZXA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY62157EV30LL-45ZXA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY62157EV30LL-45ZXA?
CY62157EV30LL-45ZXA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY62157EV30LL-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 CY62157EV30LL-45ZXA?
For technical support, including CY62157EV30LL-45ZXA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY62157EV30LL-45ZXA requirements.
6.How does Aetrix verify that CY62157EV30LL-45ZXA is sourced from the original manufacturer or authorized distributors?
All CY62157EV30LL-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 CY62157EV30LL-45ZXA meets industry standards.
7.What is the process for return or replacement of CY62157EV30LL-45ZXA?
All CY62157EV30LL-45ZXA units undergo pre-shipment inspection (PSI). If there is an issue with CY62157EV30LL-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 CY62157EV30LL-45ZXA part is unused and in its original packaging.
Return procedure for CY62157EV30LL-45ZXA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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