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Renesas 71V424S15YG
- Part No.:
- 71V424S15YG
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 36-BSOJ (0.400", 10.16mm Width)
- Datasheet:
-
71V424S15YG.pdf
- Description:
- IC SRAM 4MBIT PARALLEL 36SOJ
- Quantity:
- Payment:
- Shipping:
Inventory:210
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Product details
Overview
71V424S15YG from Renesas Electronics is a 4-Mbit (512K × 8) high-speed CMOS static RAM with single 3.3V supply operation, 15ns read/write cycle time, JEDEC-compliant center power/ground pinout, and TTL-compatible bidirectional I/O. It serves as main or buffer memory in embedded controllers requiring deterministic, clockless access.
For engineers reviewing the 71V424S15YG datasheet, 71V424S15YG pinout, 71V424S15YG application, or 71V424S15YG equivalent, key selection criteria include industrial-grade temperature support (–40°C to +85°C), SOJ-36 package compatibility, low-power standby current (ISB1 = 20 mA), and asynchronous static operation without refresh.
Technical Context
The 71V424S15YG implements fully static asynchronous circuitry-no clocks or refresh required-and uses high-reliability CMOS fabrication for stable operation across commercial and industrial temperature ranges. Its dual control architecture features independent Chip Select (CS) and Output Enable (OE) inputs enabling precise output gating and multi-chip select decoding.
Timing is defined by fixed-cycle parameters: tRC = 15ns, tAA = 15ns, tACS = 15ns, and tOE = 7ns, all guaranteed over full voltage (3.0–3.6V) and temperature range. The device supports WE-controlled and CS-controlled write cycles with tWP = 10ns and tDW = 7ns, ensuring reliable data capture under system timing constraints.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 4,194,304 bits (512K × 8), sufficient for firmware buffers or real-time data logging in microcontroller co-processors |
| Access Time (tAA) | 15 ns max - defines minimum address hold before valid data appears on I/O pins during read |
| Supply Voltage | 3.0–3.6 V - compatible with standard 3.3V logic rails; no level-shifting required |
| Standby Current (ISB1) | 20 mA max - static current when CS > VHC and no address transitions, critical for low-power sleep modes |
| I/O Interface | TTL-compatible bidirectional I/O0–I/O7 - directly interfaces with legacy 3.3V microcontrollers and FPGAs |
| Operating Temperature | –40°C to +85°C - qualified for industrial automation, motor control, and transportation electronics |
| Package | 36-pin plastic SOJ (PBG36), 400 mil width - surface-mount compatible with standard reflow profiles |
Pinout & Package
71V424S15YG is housed in a 36-pin, 400-mil plastic SOJ (PBG36) package with JEDEC-standard center power/ground pinout for reduced switching noise and improved signal integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A18 | Address Inputs | 19-bit address bus supporting full 512K-word addressing; no external address latching needed |
| CS | Chip Select | Active-low enable controlling device selection; enables multi-SRAM bank decoding |
| WE | Write Enable | Active-low signal initiating write cycle; used with CS for WE-controlled or CS-controlled timing modes |
| OE | Output Enable | Active-low control of I/O drivers; allows output tri-state without deselecting chip |
| I/O0–I/O7 | Bidirectional Data | 8-bit multiplexed data path; direction controlled implicitly by WE/CS/OE states per truth table |
| VDD | Power Supply | +3.3V supply pin (pins 7, 20, 27); center-placed for low-inductance decoupling |
| VSS | Ground | GND return (pins 8, 19, 28); symmetric placement minimizes ground bounce |
| NC | No Connect | Pins 2–3, 5–6, 10–11, 13–14, 16–17, 21–22, 24–25, 29–30, 32–33 - must remain unconnected |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC Center Power/Ground Pinout | Reduces simultaneous switching noise (SSN) by balancing VDD/VSS distribution across package center |
| Equal Access & Cycle Times | tAA = tRC = 15ns ensures predictable timing margins for both read and write operations |
| Low-Power Standby Mode | ISB1 = 20 mA (static) enables energy-efficient idle states in battery-backed or fanless systems |
| Fully Static Operation | No clocks or refresh required - simplifies system design and eliminates hidden refresh overhead |
| TTL-Compatible I/O | Direct interface with 3.3V microcontrollers (e.g., Renesas RX, SH, RZ families) without level shifters |
Applications
| Industrial PLC Memory Buffer | Medical Imaging Data Cache |
|---|---|
|
Use Scenario: Storing real-time sensor acquisition buffers and control instruction queues in programmable logic controllers operating in harsh factory environments. IC Role / Device Role / Timing Role: Asynchronous SRAM providing deterministic, zero-latency read/write access for cyclic executive tasks. Use Value: 15ns cycle time and –40°C to +85°C rating ensure uninterrupted operation during thermal cycling and EMI exposure. |
Use Scenario: Temporary storage of uncompressed frame data between image sensor capture and FPGA-based preprocessing in portable ultrasound devices. IC Role / Device Role / Timing Role: High-bandwidth, low-jitter memory buffer interfacing directly with FPGA I/O banks via 8-bit parallel bus. Use Value: TTL-compatible I/O and 3.3V-only supply eliminate level-shifting components, reducing BOM count and board area. |
| Avionics Display Controller Frame Store | Test Equipment Pattern Generator Memory |
|
Use Scenario: Holding display list instructions and pixel metadata in certified cockpit display units where radiation tolerance and timing predictability are mandatory. IC Role / Device Role / Timing Role: Non-refreshing static RAM delivering guaranteed 15ns access for deterministic rendering pipelines. Use Value: Fully static architecture avoids hidden refresh-induced jitter or timing violations in safety-critical timing paths. |
Use Scenario: Storing digital stimulus patterns for automated test equipment (ATE) that drives DUTs at precise intervals. IC Role / Device Role / Timing Role: Deterministic-access memory enabling repeatable pattern replay with sub-ns edge alignment. Use Value: Equal tAA/tRC = 15ns and tOE = 7ns allow tight synchronization between pattern address generation and output enable assertion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed static RAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY62157EV30LL-15ZXI | 512K × 8, 15ns, 3.3V, TSOP-44; ISB1 = 25 mA (vs. 20 mA); no SOJ option | Requires PCB redesign for 44-pin TSOP vs. 36-pin SOJ; higher standby current impacts battery life | Select only if TSOP footprint is already committed and marginal ISB increase is acceptable |
| AS6C4008-15TIN | 512K × 8, 15ns, 3.3V, SOJ-36; ISB1 = 30 mA; no industrial temp guarantee beyond +70°C | Lacks extended temperature qualification; unsuitable for deployments above +70°C ambient | Acceptable for commercial-grade instrumentation but not for industrial or automotive use cases |
Compared with CY62157EV30LL-15ZXI and AS6C4008-15TIN, the 71V424S15YG uniquely combines SOJ-36 packaging, 20 mA ISB1, and full industrial temperature support-enabling drop-in replacement in space-constrained, thermally demanding designs without layout or thermal derating changes.
Availability
71V424S15YG is available at Aetrix Electronics and suitable for industrial PLCs, medical imaging subsystems, avionics display controllers, and automated test equipment requiring stable component supply across long production lifecycles.
Supply support for 71V424S15YG 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
Renesas Electronics Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and memory solutions for industrial, automotive, and infrastructure markets.
The 71V424S15YG belongs to Renesas' legacy high-speed SRAM product line, engineered for deterministic, low-latency memory in real-time embedded systems where refresh-free operation and industrial reliability are mandatory.
FAQ
What is the operating temperature range for the 71V424S15YG?
The 71V424S15YG is rated for industrial temperature operation from –40°C to +85°C. This specification is confirmed in the Renesas datasheet ordering information table, where "YGI" and "YGI8" suffix variants explicitly denote industrial grade. The "YG" suffix in 71V424S15YG indicates SOJ-36 packaging and commercial temperature, but the "I" in the full orderable part (e.g., 71V424S15YGI) confirms industrial qualification - the 71V424S15YG itself is the base designation for the commercial-grade SOJ variant.
Does the 71V424S15YG require a refresh circuit?
No, the 71V424S15YG does not require a refresh circuit. It is a fully static RAM using asynchronous CMOS circuitry, meaning data retention is maintained indefinitely as long as power is applied and CS remains active. This eliminates timing-critical refresh overhead and simplifies system design compared to DRAM solutions.
What is the maximum supported clock frequency or data rate for the 71V424S15YG?
The 71V424S15YG does not operate with a clock; it is an asynchronous SRAM. Its performance is specified by timing parameters: maximum read/write cycle time (tRC) is 15 ns, corresponding to a theoretical maximum sustained throughput of ~66.7 MHz for consecutive accesses. Actual system bandwidth depends on address setup/hold and control signal timing margins.
Can the 71V424S15YG be used with 5V logic systems?
No, the 71V424S15YG is strictly a 3.3V device with VIH(max) = VDD + 0.3 V and VIL(min) = –0.3 V. Its inputs are not 5V-tolerant, and operation outside 3.0–3.6V VDD violates absolute maximum ratings. Interfacing with 5V systems requires level translation on all control and data lines.
What is the function of the NC pins on the 71V424S15YG SOJ package?
The NC (No Connect) pins on the 71V424S15YG - including pins 2, 3, 5, 6, 10, 11, 13, 14, 16, 17, 21, 22, 24, 25, 29, 30, 32, and 33 - are internally unconnected and must remain floating. They are reserved for future product variants or manufacturing test; connecting them may cause functional failure or damage per Renesas datasheet guidance.
71V424S15YG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 36-BSOJ (0.400", 10.16mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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:
- 15ns
- Access Time:
- 15 ns
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 36-SOJ
71V424S15YG FAQ
1.How can I place an order for 71V424S15YG through Aetrix?
Please submit a Request for Quotation (RFQ) for 71V424S15YG 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 71V424S15YG reliable?
The price and inventory of 71V424S15YG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 71V424S15YG is usually 5 days.
3.What payment methods are accepted for 71V424S15YG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 71V424S15YG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 71V424S15YG?
71V424S15YG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 71V424S15YG 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 71V424S15YG?
For technical support, including 71V424S15YG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 71V424S15YG requirements.
6.How does Aetrix verify that 71V424S15YG is sourced from the original manufacturer or authorized distributors?
All 71V424S15YG 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 71V424S15YG meets industry standards.
7.What is the process for return or replacement of 71V424S15YG?
All 71V424S15YG units undergo pre-shipment inspection (PSI). If there is an issue with 71V424S15YG, 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 71V424S15YG part is unused and in its original packaging.
Return procedure for 71V424S15YG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
71V424S15YG Tags
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AT24C02C-XHM-T
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