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Renesas 71V424L15YGI8
- Part No.:
- 71V424L15YGI8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 36-BSOJ (0.400", 10.16mm Width)
- Datasheet:
-
71V424L15YGI8.pdf
- Description:
- IC SRAM 4MBIT PARALLEL 36SOJ
- Quantity:
- Payment:
- Shipping:
Inventory:3,425
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Product details
Overview
71V424L15YGI8 from Renesas Electronics is a 4-Mbit (512K × 8) low-power, high-speed CMOS static RAM operating from a single 3.3V supply, with 15ns read/write cycle time, industrial temperature range (–40°C to +85°C), and JEDEC-compliant 36-pin SOJ package - used in real-time data buffering for industrial controllers and telecom line cards.
For engineers reviewing the 71V424L15YGI8 datasheet, 71V424L15YGI8 pinout, 71V424L15YGI8 application, or 71V424L15YGI8 equivalent, this page delivers verified timing parameters, TTL-compatible bidirectional I/O behavior, standby current specs (ISB1 = 10 mA), JEDEC center-power pinout rationale, and direct alternatives for memory upgrade paths in legacy 3.3V systems.
Technical Context
The 71V424L15YGI8 implements fully static asynchronous operation-no clocks or refresh required-and uses dual-control enable logic: Chip Select (CS) and Output Enable (OE) operate independently to support fast read cycles (tOE = 7 ns) and precise output gating. Its address-access architecture supports concurrent CS and OE assertion without bus contention.
All 19 address lines (A0–A18), 8 bidirectional data lines (I/O0–I/O7), and control inputs (CS, OE, WE) are TTL-compatible with VIH = 2.0 V min and VIL = 0.8 V max at VDD = 3.3 V. The device features JEDEC-standard center-power/ground pinout (VDD on Pin 7, VSS on Pin 8) to minimize simultaneous switching noise in dense PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 4,194,304 bits (512K × 8) - supports byte-wide data paths without external multiplexing |
| Access Time | 15 ns max (tAA, tACS) - enables integration into 66 MHz CPU bus interfaces with no wait states |
| Supply Voltage | 3.0 V to 3.6 V - compatible with standard 3.3V LVTTL and LVCMOS logic domains |
| Standby Current | 10 mA max (ISB1, f = 0) - ensures ultra-low power retention during system sleep modes |
| Operating Temp | –40°C to +85°C - qualified for industrial automation, base station, and transportation control systems |
| I/O Interface | TTL-compatible bidirectional data (I/O0–I/O7) - eliminates level-shifter requirements in mixed-voltage designs |
| Package | 36-pin, 400-mil plastic SOJ (PBG36) - surface-mount compatible with legacy reflow profiles and socketed test fixtures |
Pinout & Package
71V424L15YGI8 is housed in a 36-pin, 400-mil plastic SOJ (PBG36) package with JEDEC-standard center-power/ground layout for noise reduction. Pin 1 is A0 (LSB address); pins 7 and 8 are VDD and VSS respectively; pin 36 is A18 (MSB address).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A18 | Address Inputs | 19-bit address bus supporting full 512K-word addressing; no internal latching - requires stable address before CS/WE assertion |
| CS | Chip Select | Active-low global enable; deassertion places device in full standby (ISB1 = 10 mA) and forces all I/O into high-Z |
| OE | Output Enable | Active-low read control; independent of CS - allows output gating while chip remains selected (tOE = 7 ns) |
| WE | Write Enable | Active-low write control; overlapping low WE and low CS initiates write cycle (tWP = 10 ns min) |
| I/O0–I/O7 | Bidirectional Data | True bidirectional TTL-compatible bus interface; direction controlled by CS/OE/WE state per truth table |
| VDD | Power Supply | Pin 7: 3.3V supply input; center-positioned to reduce ground bounce and improve signal integrity |
| VSS | Ground | Pin 8: System ground reference; adjacent to VDD per JEDEC noise-reduction layout convention |
Key Features
| Feature | Design Value |
|---|---|
| Low-Power Operation | ISB1 = 10 mA (static standby) and ISB = 45 mA (dynamic standby) at 15 ns speed - reduces thermal load in fanless enclosures |
| JEDEC Center-Power Pinout | VDD (Pin 7) and VSS (Pin 8) placed centrally - minimizes simultaneous switching output (SSO) noise in multi-SRAM configurations |
| Asynchronous Static Core | No clocks, no refresh, no hidden latency - deterministic timing simplifies FPGA/CPU interface logic design |
| TTL-Compatible I/O | VIH = 2.0 V min, VIL = 0.8 V max at VDD = 3.3 V - interoperable with legacy 5V-tolerant microcontrollers via pull-up or direct connection |
| Industrial Temperature Range | –40°C to +85°C operation - validated for use in uncontrolled environments like railway signaling cabinets and outdoor telecom nodes |
Applications
| Industrial PLC Data Buffer | Telecom Line Card Cache |
|---|---|
|
Use Scenario: Real-time I/O scanning in programmable logic controllers where sensor data must be captured and processed within fixed microsecond windows. IC Role / Device Role / Timing Role: High-speed, non-refreshing data buffer holding transient process variables between scan cycles. Use Value: 15 ns access time ensures zero-wait-state integration with 66 MHz SHARC or ColdFire processors; ISB1 = 10 mA extends battery backup runtime during AC loss. |
Use Scenario: Packet header caching in T1/E1 framing ICs requiring rapid lookup of channel status and alarm flags. IC Role / Device Role / Timing Role: Byte-wide SRAM serving as low-latency shadow memory for protocol engine register sets. Use Value: Bidirectional TTL I/O eliminates level shifters; JEDEC pinout suppresses crosstalk across 16+ SRAMs on dense line card PCBs. |
| Medical Imaging Frame Store | Avionics Display Controller Buffer |
|
Use Scenario: Temporary storage of digitized X-ray or ultrasound frames prior to compression and transmission over CAN or Ethernet. IC Role / Device Role / Timing Role: Burst-mode write/read buffer synchronized to ADC/DAC clock domains via CS/OE strobing. Use Value: 512K × 8 organization matches common 1024×512 pixel depth; industrial temp rating supports operation inside sealed diagnostic chassis. |
Use Scenario: Graphics overlay buffer in cockpit display units where deterministic latency is mandated by DO-254 safety requirements. IC Role / Device Role / Timing Role: Asynchronous frame buffer enabling pixel-level updates without GPU intervention. Use Value: Fully static operation guarantees no data loss during power transients; 36-pin SOJ allows conformal coating and mechanical retention in vibration-prone mounts. |
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-15ZSXI | 512K × 8, 15 ns, 3.3V, 44-pin TSOP - higher pin count, no SOJ option; ISB1 = 25 mA (vs. 10 mA) | Requires PCB redesign for TSOP footprint; better suited for new designs with space-constrained layouts | Select when migrating to finer-pitch surface mount and accepting higher standby current |
| AS6C4008-15TIN | 512K × 8, 15 ns, 3.3V, 32-pin SOP - smaller package but lacks JEDEC center-power layout; tOE = 10 ns (vs. 7 ns) | Lower pin count eases routing but increases SSN risk in multi-SRAM banks; not drop-in for SOJ sockets | Select only for cost-sensitive, low-density boards where noise margin is less critical |
Compared with CY62157EV30LL-15ZSXI and AS6C4008-15TIN, the 71V424L15YGI8 uniquely combines SOJ socket compatibility, JEDEC noise-optimized pinout, and lowest ISB1 (10 mA) - making it the preferred choice for industrial retrofits and thermally constrained legacy systems.
Availability
71V424L15YGI8 is available at Aetrix Electronics and suitable for industrial PLCs, telecom line cards, medical imaging subsystems, and avionics display controllers requiring stable component supply across extended product lifecycles.
Supply support for 71V424L15YGI8 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 delivering microcontrollers, analog, power, and memory solutions for automotive, industrial, infrastructure, and IoT applications.
The 71V424L15YGI8 belongs to Renesas' legacy high-speed SRAM product line, engineered specifically for deterministic, low-latency data buffering in 3.3V industrial and telecom systems where refresh-free operation and thermal resilience are mandatory.
FAQ
What is the maximum operating temperature range for the 71V424L15YGI8?
The 71V424L15YGI8 is rated for industrial temperature operation from –40°C to +85°C. This specification is guaranteed across all DC and AC parameters in the datasheet, including access time (tAA ≤ 15 ns), standby current (ISB1 ≤ 10 mA), and I/O voltage thresholds. It is validated for use in sealed enclosures without forced air cooling, such as railway signaling modules and outdoor base station radios.
Does the 71V424L15YGI8 require a refresh circuit or clock signal?
No, the 71V424L15YGI8 is a fully static RAM and requires no refresh circuitry or clock input. Its asynchronous design relies solely on address, control (CS/OE/WE), and data signals - all timing parameters (e.g., tRC = 15 ns, tWP = 10 ns) are specified under static conditions. This eliminates refresh overhead in microcontroller- or FPGA-based systems and guarantees data retention as long as VDD is applied.
What is the meaning of "YGI8" in the part number 71V424L15YGI8?
In 71V424L15YGI8, "Y" denotes the PBG36 (36-pin SOJ) package, "G" indicates green (lead-free/RoHS-compliant) construction, "I" specifies industrial temperature grade (–40°C to +85°C), and "8" signifies tape-and-reel packaging. This full suffix confirms the device is a lead-free, industrial-grade, SOJ-packaged, 15 ns low-power SRAM supplied in reel format - matching Renesas' official ordering code definition.
Can the 71V424L15YGI8 be used with a 5V microcontroller interface?
Yes - the 71V424L15YGI8 has TTL-compatible inputs (VIH = 2.0 V min, VIL = 0.8 V max) and outputs (VOH ≥ 2.4 V, VOL ≤ 0.4 V at VDD = 3.0 V), allowing direct connection to 5V-tolerant microcontrollers (e.g., older 8051 or PIC families) without level shifters. However, VDD must remain at 3.3V ±10%; the device does not accept 5V supply.
What is the standby current consumption of the 71V424L15YGI8 during full power-down?
The 71V424L15YGI8 draws 10 mA maximum (ISB1) when fully deselected (CS > VHC) and no address or control lines are toggling (f = 0). This static standby current is measured at VDD = 3.6 V and TA = +85°C, and is the lowest among its speed grade - critical for battery-backed systems like emergency shutdown controllers where multi-day retention is required.
71V424L15YGI8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 36-BSOJ (0.400", 10.16mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 36-SOJ
71V424L15YGI8 FAQ
1.How can I place an order for 71V424L15YGI8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 71V424L15YGI8 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 71V424L15YGI8 reliable?
The price and inventory of 71V424L15YGI8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 71V424L15YGI8 is usually 5 days.
3.What payment methods are accepted for 71V424L15YGI8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 71V424L15YGI8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 71V424L15YGI8?
71V424L15YGI8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 71V424L15YGI8 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 71V424L15YGI8?
For technical support, including 71V424L15YGI8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 71V424L15YGI8 requirements.
6.How does Aetrix verify that 71V424L15YGI8 is sourced from the original manufacturer or authorized distributors?
All 71V424L15YGI8 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 71V424L15YGI8 meets industry standards.
7.What is the process for return or replacement of 71V424L15YGI8?
All 71V424L15YGI8 units undergo pre-shipment inspection (PSI). If there is an issue with 71V424L15YGI8, 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 71V424L15YGI8 part is unused and in its original packaging.
Return procedure for 71V424L15YGI8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
71V424L15YGI8 Tags
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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
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AT21CS01-STUM10-T
Microchip Technology
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AT24C02C-SSHM-T
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24LC01BT-I/OT
Microchip Technology
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M24C02-FMC6TG
STMicroelectronics
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AT24CS02-SSHM-T
Microchip Technology
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93LC46BT-I/OT
Microchip Technology
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AT24C04C-SSHM-T
Microchip Technology
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24LC01BT-I/SN
Microchip Technology
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24AA02UIDT-I/OT
Microchip Technology
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AT24C08C-STUM-T
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