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Renesas 71V424L10PHGI8
- Part No.:
- 71V424L10PHGI8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 44-TSOP (0.400", 10.16mm Width)
- Datasheet:
-
71V424L10PHGI8.pdf
- Description:
- IC SRAM 4MBIT PARALLEL 44TSOP II
- Quantity:
- Payment:
- Shipping:
Inventory:4,226
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Product details
Overview
71V424L10PHGI8 from Renesas Electronics is a 4-Mbit (512K × 8) low-power, high-speed CMOS static RAM with 10 ns access time, single 3.3 V supply operation, industrial temperature range (–40°C to +85°C), and JEDEC-compliant center power/ground pinout. It serves as asynchronous main memory or buffer in real-time control systems requiring deterministic timing and zero-refresh operation.
For engineers reviewing the 71V424L10PHGI8 datasheet, 71V424L10PHGI8 pinout, 71V424L10PHGI8 application, or 71V424L10PHGI8 equivalent, this device is selected for embedded systems demanding fast read/write cycles, TTL-compatible I/O, low standby current (10 mA), and TSOP-44 packaging compatible with space-constrained PCB layouts.
Technical Context
The 71V424L10PHGI8 implements fully static asynchronous logic with no clocks or refresh required. Its architecture includes independent chip select (CS), output enable (OE), and write enable (WE) controls enabling precise bus arbitration and multi-chip memory expansion.
All 8 bidirectional I/O lines are TTL-compatible with guaranteed VOH ≥ 2.4 V at –4 mA and VOL ≤ 0.4 V at 8 mA. The device supports two distinct power states: dynamic operating mode (ICC = 165 mA max at 10 ns) and full standby (ISB1 = 10 mA), both specified across the full industrial temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 4,194,304 bits (512K × 8) - provides byte-wide data path without external multiplexing |
| Access Time (tAA) | 10 ns max - enables CPU interface at up to 100 MHz sustained random read rate |
| Supply Voltage | 3.0 V to 3.6 V - compatible with standard 3.3 V logic rails and tolerant of ±10% regulation |
| Standby Current (ISB1) | 10 mA max - reduces system-level power consumption during idle periods in battery-backed applications |
| Operating Temperature | –40°C to +85°C - qualified for industrial control, motor drives, and transportation electronics |
| Package | 44-pin TSOP Type II (PHG44), 400 mil width - surface-mount compatible with automated assembly and thermal performance suitable for convection-cooled boards |
| I/O Compatibility | TTL input thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V) and output drive (–4 mA / 8 mA) - interoperable with legacy 3.3 V and 5 V tolerant microcontrollers |
Pinout & Package
44-pin, 400 mil TSOP Type II package (PHG44) with JEDEC-standard center power/ground configuration 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; all inputs CMOS-compatible with 7 pF max input capacitance |
| I/O0–I/O7 | Bidirectional Data Bus | 8-bit TTL-compatible data path; high-impedance state controlled by CS and OE; 8 pF max I/O capacitance |
| CS | Chip Select | Active-low enable for device selection; tACS = 10 ns max ensures fast bank switching in multi-SRAM systems |
| OE | Output Enable | Active-low control for output drivers; tOE = 5 ns max enables tight timing with fast microprocessor read cycles |
| WE | Write Enable | Active-low write strobe; supports WE-controlled or CS-controlled write timing per JEDEC standards |
| VDD | Power Supply | 3.3 V core supply; decoupling required within 10 mm due to 165 mA dynamic current demand |
| VSS | Ground | Signal and power ground reference; dual VSS pins (pins 23 and 37) support low-inductance return paths |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC Center Power/Ground Pinout | Reduces simultaneous switching noise (SSN) by minimizing ground bounce and supply rail collapse during high-speed I/O transitions |
| Equal Access and Cycle Times | 10 ns tAA = tRC ensures predictable timing for both read and write operations-simplifies timing budgeting in synchronous bus designs |
| Low-Power "L" Variant | 10 mA ISB1 (vs. 20 mA for "S" variant) enables >50% standby power reduction in always-on industrial monitoring nodes |
| Industrial Temperature Rating | Validated operation from –40°C to +85°C without derating-supports deployment in uncontrolled environments like factory floors and outdoor enclosures |
| TTL-Compatible I/O | Eliminates level-shifter requirements when interfacing with legacy 3.3 V microcontrollers (e.g., Renesas SH-2, ARM7TDMI-based SoCs) |
Applications
| Industrial PLC Data Buffer | Medical Imaging Frame Store |
|---|---|
|
Use Scenario: Real-time buffering of sensor acquisition data in programmable logic controllers with deterministic scan cycle deadlines. IC Role / Device Role / Timing Role: Asynchronous SRAM providing zero-latency, non-refreshed storage for 512K samples per scan cycle. Use Value: 10 ns access time ensures sub-microsecond data capture latency, while ISB1 = 10 mA extends runtime in battery-backed backup modes. |
Use Scenario: Temporary frame storage in portable ultrasound devices where image data must be held during DSP processing before display transfer. IC Role / Device Role / Timing Role: Byte-wide static memory acting as ping-pong buffer between ADC interface and image processor bus. Use Value: TTL-compatible I/O and 44-pin TSOP footprint allow direct integration with legacy medical SoC buses without redesign. |
| Avionics Display Controller Cache | Test Equipment Pattern Memory |
|
Use Scenario: Storing GUI assets and rendering instructions in certified cockpit display units requiring DO-254 compliance and radiation-tolerant behavior. IC Role / Device Role / Timing Role: Non-volatile-critical cache holding font glyphs and vector primitives for deterministic render pipeline timing. Use Value: Fully static operation eliminates refresh-induced jitter; industrial temp rating validates use in wide ambient cabin conditions. |
Use Scenario: Holding stimulus patterns in automated test equipment (ATE) for semiconductor wafer probing, where pattern repeatability and timing fidelity are critical. IC Role / Device Role / Timing Role: High-speed pattern store synchronized to ATE timing generator with <10 ns setup/hold windows. Use Value: Equal tAA/tRC = 10 ns guarantees consistent pattern delivery across all address locations-no timing skew across memory map. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY62157EV30LL-10ZSXI | 512K × 8, 10 ns, 3.3 V, 44-pin TSOP; ISB1 = 25 µA (vs. 10 mA for 71V424L10PHGI8) | Ultra-low standby power ideal for battery-powered portable instruments; lacks industrial temp validation at 10 ns speed grade | Select when microamp-level standby dominates over industrial temperature assurance |
| AS6C4008-10BIN | 512K × 8, 10 ns, 3.3 V, 44-pin TSOP; ICC = 140 mA (vs. 165 mA); VIL = –0.3 V min (vs. 0 V for 71V424L10PHGI8) | Lower dynamic power draw but requires stricter input low voltage margin; commercial temp only (0°C to +70°C) | Select for cost-sensitive commercial applications where industrial temp is not required |
Compared with CY62157EV30LL-10ZSXI and AS6C4008-10BIN, the 71V424L10PHGI8 uniquely balances industrial temperature operation, 10 ns performance, and moderate standby current-making it optimal for ruggedized embedded systems where reliability under thermal stress outweighs ultra-low-power needs.
Availability
71V424L10PHGI8 is available at Aetrix Electronics and suitable for industrial automation, medical diagnostics, avionics displays, and test equipment requiring stable component supply across extended product lifecycles.
Supply support for 71V424L10PHGI8 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 71V424L10PHGI8 belongs to Renesas' legacy high-speed SRAM product line, designed specifically for deterministic, zero-refresh memory subsystems in real-time embedded systems where timing predictability and industrial-grade reliability are mandatory.
FAQ
What is the maximum clock frequency supported by the 71V424L10PHGI8?
The 71V424L10PHGI8 is an asynchronous static RAM and does not use a clock signal. Its maximum effective interface speed is determined by its 10 ns access time (tAA), enabling reliable operation with microprocessors or FPGAs running read/write cycles at up to 100 MHz. Timing is governed solely by address stability, CS/OE/WE setup/hold windows, and cycle time (tRC = 10 ns), not by any internal oscillator or clock domain.
Does the 71V424L10PHGI8 require refresh circuitry?
No, the 71V424L10PHGI8 is a fully static RAM and requires no refresh circuitry or periodic access to retain data. Its CMOS latch-based memory cells maintain state indefinitely as long as VDD remains within specification (3.0 V–3.6 V) and temperature stays within the industrial range (–40°C to +85°C). This eliminates refresh overhead and timing uncertainty in real-time systems.
What is the meaning of "L" in the part number 71V424L10PHGI8?
The "L" in 71V424L10PHGI8 denotes the low-power variant of the IDT71V424 family. Compared to the standard "S" version, the "L" variant reduces full standby current (ISB1) from 20 mA to 10 mA at maximum VDD and temperature-achieving a 50% reduction in quiescent power without sacrificing 10 ns access performance or industrial temperature rating.
Can the 71V424L10PHGI8 be used with a 5 V microcontroller interface?
The 71V424L10PHGI8 is a 3.3 V-only device with TTL-compatible inputs (VIH ≥ 2.0 V, VIL ≤ 0.8 V), making it safe to connect directly to 5 V microcontrollers only if their outputs are 3.3 V tolerant or open-drain. For standard 5 V CMOS outputs, a level-shifting circuit is required on all address, control, and data lines to avoid exceeding the absolute maximum input voltage (VDD + 0.5 V = 4.1 V).
What package type does the 71V424L10PHGI8 use, and is it RoHS compliant?
The 71V424L10PHGI8 uses a 44-pin TSOP Type II package (PHG44), 400 mil width, with lead-free (Pb-free) terminations and RoHS-compliant materials per Renesas' "Green" designation. The "G" suffix in PHG44 and the "I8" suffix (tape-and-reel packaging) confirm full compliance with EU RoHS Directive 2011/65/EU and JESD204B material restrictions.
71V424L10PHGI8 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 44-TSOP II
71V424L10PHGI8 FAQ
1.How can I place an order for 71V424L10PHGI8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 71V424L10PHGI8 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 71V424L10PHGI8 reliable?
The price and inventory of 71V424L10PHGI8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 71V424L10PHGI8 is usually 5 days.
3.What payment methods are accepted for 71V424L10PHGI8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 71V424L10PHGI8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 71V424L10PHGI8?
71V424L10PHGI8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 71V424L10PHGI8 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 71V424L10PHGI8?
For technical support, including 71V424L10PHGI8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 71V424L10PHGI8 requirements.
6.How does Aetrix verify that 71V424L10PHGI8 is sourced from the original manufacturer or authorized distributors?
All 71V424L10PHGI8 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 71V424L10PHGI8 meets industry standards.
7.What is the process for return or replacement of 71V424L10PHGI8?
All 71V424L10PHGI8 units undergo pre-shipment inspection (PSI). If there is an issue with 71V424L10PHGI8, 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 71V424L10PHGI8 part is unused and in its original packaging.
Return procedure for 71V424L10PHGI8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
71V424L10PHGI8 Tags
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