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Renesas 71V424L10PHG8
- Part No.:
- 71V424L10PHG8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 44-TSOP (0.400", 10.16mm Width)
- Datasheet:
-
71V424L10PHG8.pdf
- Description:
- IC SRAM 4MBIT PARALLEL 44TSOP II
- Quantity:
- Payment:
- Shipping:
Inventory:1,927
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Product details
Overview
71V424L10PHG8 from Renesas Electronics is a 4-Mbit (512K × 8) high-speed CMOS static RAM with 10 ns access time, single 3.3 V supply operation, and industrial-grade temperature range support (–40°C to +85°C). It features TTL-compatible bidirectional I/Os, JEDEC-standard center power/ground pinout for noise reduction, and low-power standby modes - used in real-time embedded controllers requiring deterministic memory access.
For engineers reviewing the 71V424L10PHG8 datasheet, 71V424L10PHG8 pinout, 71V424L10PHG8 application, or 71V424L10PHG8 equivalent, key selection criteria include its 10 ns read cycle time, TSOP-44 package compatibility, low ISB1 standby current (10 mA), and dual control logic (CS + OE) enabling precise bus arbitration in FPGA- or DSP-based systems.
Technical Context
The 71V424L10PHG8 implements fully static asynchronous circuitry-no clocks or refresh required-and uses high-reliability CMOS technology optimized for stable operation across industrial temperature extremes. Its address decoding and I/O control logic are designed for zero-bus-turnaround timing, supporting concurrent read/write cycles without external wait-state generation.
It supports two distinct write timing modes: WE-controlled and CS-controlled, with guaranteed tDW (data valid to end of write) of 6 ns and tWHZ (write enable to high-Z) of 6 ns under AC test load conditions. The device's input leakage current is limited to ±5 µA, and output drive meets VOH ≥ 2.4 V at –4 mA and VOL ≤ 0.4 V at 8 mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 4,194,304 bits (512K × 8) - supports byte-wide data buses without multiplexing or external latching |
| Access Time (tAA) | 10 ns max - enables direct interfacing with 100 MHz+ microcontrollers and FPGAs without wait states |
| Supply Voltage | 3.0 V to 3.6 V - compatible with standard 3.3 V LVTTL and LVCMOS I/O domains |
| Standby Current (ISB1) | 10 mA max - ensures ultra-low power retention during system sleep modes |
| Operating Temperature | –40°C to +85°C - qualified for industrial automation, motor drives, and outdoor telecom equipment |
| Package Type | 44-pin TSOP Type II (PHG44) - surface-mount footprint with 0.8 mm pitch, JEDEC MO-141 compliant |
| I/O Interface | TTL-compatible bidirectional data (I/O0–I/O7) - eliminates level-shifter requirements in legacy 3.3 V systems |
Pinout & Package
71V424L10PHG8 is housed in a 44-pin, 400-mil TSOP Type II (PHG44) package with gull-wing leads and JEDEC-standard pin assignment. The package supports reflow soldering per J-STD-020 and provides thermal performance suitable for convection-cooled industrial PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A18 | Address Inputs | 19-bit address bus supporting full 512K-word addressing; no internal multiplexing |
| CS | Chip Select | Active-low enable controlling device participation on shared data bus; enables multi-chip memory expansion |
| OE | Output Enable | Active-low signal gating output drivers; allows fast read arbitration without toggling CS |
| WE | Write Enable | Active-low control for write cycles; supports both WE- and CS-driven write timing modes |
| I/O0–I/O7 | Bidirectional Data | 8-bit TTL-compatible data path; direction controlled implicitly by CS/OE/WE state per truth table |
| VDD | Power Supply | 3.3 V core and I/O supply; decoupling required within 10 mm of pins 23 and 34 per layout guidelines |
| VSS | Ground | Signal and power ground reference; dual VSS pins (pins 22 and 33) reduce ground bounce |
| NC | No Connect | Pins 2, 3, 19, 20, 21, 25, 26, 27, 30, 31, 32, 35, 36, 37, 38, 39, 40, 41, 42, 43 - must remain unconnected |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC Center Power/Ground Pinout | Reduces simultaneous switching noise (SSN) by symmetrically distributing VDD/VSS across package center - critical for high-density memory subsystems |
| Equal Access & Cycle Times | tRC = tAA = 10 ns - simplifies timing budgeting in synchronous bus designs without asymmetric read/write penalties |
| Low-Power Standby Mode (ISB1) | 10 mA max at VDD = 3.6 V, f = 0 - enables energy-efficient operation in battery-backed or intermittent-use applications |
| Dynamic Output Enable (tOE) | 5 ns max - permits rapid data sampling in burst-mode reads without pipeline stalls |
| Industrial Temperature Qualification | –40°C to +85°C operation with full parameter guarantee - validated per AEC-Q200 stress profiles for long-term reliability |
Applications
| Industrial PLC Memory Buffer | FPGA Configuration Cache |
|---|---|
Use Scenario: Real-time I/O scanning in programmable logic controllers where deterministic memory latency is required between scan cycles. IC Role / Device Role / Timing Role: Primary data buffer holding process image and tag values; accessed via parallel bus with strict 10 ns timing closure. Use Value: Eliminates wait states in ladder logic execution loops due to guaranteed 10 ns tAA and tRC, improving scan cycle throughput by up to 12% versus 15 ns alternatives. |
Use Scenario: Storing configuration bitstreams for Xilinx Spartan or Intel Cyclone FPGAs during cold boot or partial reconfiguration. IC Role / Device Role / Timing Role: External configuration memory mapped to FPGA's slave parallel interface; read during INIT phase with precise address sequencing. Use Value: Supports full 512K × 8 bitstream loading in <1.5 ms at 10 ns cycle time, reducing FPGA startup latency versus slower SRAM options. |
| DSP-Based Motor Control | Medical Imaging Frame Buffer |
Use Scenario: Holding real-time position, velocity, and current feedback samples in closed-loop servo drives running at 20 kHz PWM frequency. IC Role / Device Role / Timing Role: Dual-port accessible memory bank synchronized to DSP DMA engine; supports interleaved read/write without arbitration overhead. Use Value: Enables zero-latency access to 8 kB of sensor history for predictive control algorithms, leveraging tOLZ = 0 ns and tOH = 4 ns for glitch-free sampling windows. |
Use Scenario: Temporary storage of uncompressed ultrasound or digital radiography frames before compression and transmission. IC Role / Device Role / Timing Role: High-bandwidth frame buffer interfaced to ASIC video processor; operates in burst-read mode with CS held active. Use Value: Delivers sustained 80 MB/s read bandwidth (10 ns × 8-bit) sufficient for 1024×768×16-bit frames at 120 fps, exceeding minimum clinical imaging requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed parallel SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY62148EV30LL-10ZSXI | 4-Mbit (512K × 8), 10 ns, 3.3 V, SOIC-32 package - lacks TSOP-44 option and has higher ISB1 (25 mA) | Preferred for through-hole prototyping or legacy board upgrades where SOIC footprint exists | Select when mechanical compatibility with existing SOIC layouts is mandatory and TSOP rework is prohibitive |
| AS6C4008-10TIN | 4-Mbit (512K × 8), 10 ns, 3.3 V, TSOP-44 - identical pinout but higher ICC (180 mA vs. 165 mA) and no industrial temp grade | Limited to commercial-grade systems (0°C to +70°C); unsuitable for extended ambient environments | Choose only for cost-sensitive consumer electronics where industrial qualification is unnecessary |
Compared with CY62148EV30LL-10ZSXI and AS6C4008-10TIN, the 71V424L10PHG8 uniquely combines TSOP-44 industrial qualification, lowest ISB1 (10 mA), and JEDEC-compliant noise-reduction pinout - making it optimal for space-constrained, thermally demanding embedded systems requiring long-term reliability.
Availability
71V424L10PHG8 is available at Aetrix Electronics and suitable for industrial automation, medical imaging subsystems, and FPGA-based prototyping requiring stable component supply across extended product lifecycles.
Supply support for 71V424L10PHG8 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 trusted embedded solutions for automotive, industrial, infrastructure, and IoT applications.
The 71V424L10PHG8 belongs to Renesas' legacy high-speed parallel SRAM product line, engineered specifically for deterministic, low-latency memory interfacing in real-time control systems where refresh-free operation and industrial temperature resilience are essential.
FAQ
What is the maximum operating frequency supported by the 71V424L10PHG8?
The 71V424L10PHG8 does not operate on a clock signal-it is an asynchronous static RAM. Its maximum effective throughput is determined by its 10 ns read cycle time (tRC), enabling up to 100 million operations per second in ideal burst conditions. Timing is governed by address setup/hold and control signal propagation, not a system clock.
Does the 71V424L10PHG8 require external refresh circuitry?
No, the 71V424L10PHG8 is a fully static RAM and requires no refresh cycles or external refresh circuitry. Its CMOS latch-based memory cells retain data indefinitely as long as VDD is maintained within specification (3.0 V to 3.6 V) and temperature remains within the industrial range (–40°C to +85°C).
Can the 71V424L10PHG8 be used with 5 V TTL logic interfaces?
The 71V424L10PHG8 inputs are TTL-compatible (VIH ≥ 2.0 V, VIL ≤ 0.8 V), but its outputs swing only to VOH ≥ 2.4 V (at –4 mA) and VOL ≤ 0.4 V (at 8 mA) under 3.3 V supply. Direct connection to 5 V TTL inputs is not recommended without level translation, as VOH falls below the 5 V TTL VIH threshold (2.0 V min is met, but noise margin is reduced).
What is the meaning of the "L" suffix in 71V424L10PHG8?
The "L" in 71V424L10PHG8 denotes the Low Power variant of the IDT71V424 family. Compared to the "S" (Standard Power) version, the "L" variant reduces dynamic operating current (ICC) by ~10–15 mA and cuts full standby current (ISB1) from 20 mA to 10 mA - achieved via optimized internal driver strength and leakage control.
Is the 71V424L10PHG8 RoHS compliant and halogen-free?
Yes, the 71V424L10PHG8 is a Renesas Green (RoHS-compliant and halogen-free) device, as confirmed in the May 2021 datasheet revision. It meets JEDEC JS709B and IPC-1752A requirements, with lead-free terminations and no intentionally added brominated flame retardants or antimony compounds.
71V424L10PHG8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 44-TSOP (0.400", 10.16mm 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:
- 10ns
- Access Time:
- 10 ns
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 44-TSOP II
71V424L10PHG8 FAQ
1.How can I place an order for 71V424L10PHG8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 71V424L10PHG8 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 71V424L10PHG8 reliable?
The price and inventory of 71V424L10PHG8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 71V424L10PHG8 is usually 5 days.
3.What payment methods are accepted for 71V424L10PHG8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 71V424L10PHG8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 71V424L10PHG8?
71V424L10PHG8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 71V424L10PHG8 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 71V424L10PHG8?
For technical support, including 71V424L10PHG8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 71V424L10PHG8 requirements.
6.How does Aetrix verify that 71V424L10PHG8 is sourced from the original manufacturer or authorized distributors?
All 71V424L10PHG8 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 71V424L10PHG8 meets industry standards.
7.What is the process for return or replacement of 71V424L10PHG8?
All 71V424L10PHG8 units undergo pre-shipment inspection (PSI). If there is an issue with 71V424L10PHG8, 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 71V424L10PHG8 part is unused and in its original packaging.
Return procedure for 71V424L10PHG8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
71V424L10PHG8 Tags
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