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Renesas 71V416L10PHGI
- Part No.:
- 71V416L10PHGI
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 44-TSOP (0.400", 10.16mm Width)
- Datasheet:
-
71V416L10PHGI.pdf
- Description:
- IC SRAM 4MBIT PARALLEL 44TSOP II
- Quantity:
- Payment:
- Shipping:
Inventory:330
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Product details
Overview
71V416L10PHGI from Renesas Electronics is a 4-Mbit (256K × 16) low-power, high-speed CMOS static RAM with 10 ns access time, single 3.3 V supply operation, and industrial temperature range (–40°C to +85°C). It features separate byte enable (BHE/BLE), LVTTL-compatible I/Os, and JEDEC-standard center power/ground pinout for noise reduction. Used in real-time embedded controllers requiring deterministic memory access without refresh.
For engineers reviewing the 71V416L10PHGI datasheet, 71V416L10PHGI pinout, 71V416L10PHGI application, or 71V416L10PHGI equivalent, key selection criteria include industrial-grade timing consistency, byte-selectable write capability, SOJ/TSOP package compatibility, and standby current under 50 mA at max VDD.
Technical Context
The 71V416L10PHGI implements fully static asynchronous logic with no clocks or refresh cycles required. Its address decoding uses row/column architecture supporting 18-bit addressing (A0–A17), and all control inputs (CS, OE, WE, BHE, BLE) are edge-agnostic synchronous level-sensitive signals.
Read and write operations are decoupled via independent enable paths: OE controls output drivers during reads, while WE gates write drivers; BHE and BLE independently gate high- and low-byte data paths, enabling 8-bit sub-word writes without external logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 4,194,304 bits (256K × 16), enabling 16-bit wide data bus interfacing without multiplexing |
| Access Time (tAA) | 10 ns max at VDD = 3.0–3.6 V and TA = –40°C to +85°C - guarantees worst-case read latency in deterministic systems |
| Supply Voltage | 3.3 V nominal (3.0–3.6 V range), compatible with LVTTL logic families and modern 3.3 V system rails |
| Standby Current (ISB1) | 10 µA max at VDD = 3.6 V and f = 0 - enables ultra-low-power sleep modes in battery-backed applications |
| Byte Enable Support | BHE and BLE pins allow independent 8-bit write masking - eliminates need for external byte-gating logic |
| Pinout Standard | JEDEC center-power/ground (VDD/VSS at pins 12 & 13, 32 & 33) - reduces simultaneous switching noise in dense PCB layouts |
| Package | 44-pin, 400-mil TSOP Type II (PHG44) - surface-mount compatible with standard reflow profiles and automated assembly |
Pinout & Package
71V416L10PHGI is housed in a 44-pin, 400-mil TSOP Type II package (PHG44), compliant with JEDEC MO-141BA. Pin 1 is located at the top-left corner (notch-marked side), with pins numbered counter-clockwise.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A17 | Address Inputs | 18-bit address bus accepting full 256K-word space; no internal latching - requires stable address before CS/WE assertion |
| CS | Chip Select | Active-low global enable; device enters high-Z standby when high - primary power gating signal |
| OE | Output Enable | Active-low output driver control; allows read data to appear on I/O pins only when CS and OE are both low |
| WE | Write Enable | Active-low write strobe; initiates write cycle when CS, WE, and BHE/BLE are asserted - defines tWP timing window |
| BHE, BLE | Byte Enable Inputs | Independent active-low enables for upper (I/O8–I/O15) and lower (I/O0–I/O7) data bytes - supports 8-bit partial writes |
| I/O0–I/O15 | Bidirectional Data I/O | LVTTL-compatible 16-bit data bus; direction controlled by WE state - no external transceivers needed |
| VDD | Power Supply | 3.3 V core supply (pins 12, 32); must be decoupled locally per JEDEC recommendations |
| VSS | Ground | Signal ground (pins 11, 33); center placement minimizes ground bounce in high-speed operation |
Key Features
| Feature | Design Value |
|---|---|
| Low-Power Standby Mode | ISB1 = 10 µA max ensures minimal battery drain in always-on industrial controllers during idle periods |
| Byte-Selectable Write | Dual independent byte enables (BHE/BLE) eliminate glue logic for 8-bit peripheral interfacing or legacy bus adaptation |
| No Refresh Required | Fully static design removes DRAM-style refresh overhead - simplifies firmware and guarantees deterministic timing |
| LVTTL-Compatible I/O | VIH = 2.0 V min / VIL = 0.8 V max ensures robust noise margin when interfaced with 3.3 V microcontrollers and FPGAs |
| Industrial Temperature Range | Specified from –40°C to +85°C supports deployment in uncontrolled environments like factory automation and transportation systems |
Applications
| Industrial PLC Memory Buffer | Medical Imaging Frame Store |
|---|---|
Use Scenario: Storing real-time I/O scan data and program variables in programmable logic controllers operating in factory-floor environments. IC Role / Device Role / Timing Role: Non-volatile shadow RAM buffer holding configuration and status registers; accessed synchronously with CPU clock edges. Use Value: 10 ns tAA and industrial temp rating ensure consistent response under thermal stress and electrical noise common in motor-drive proximity. | Use Scenario: Temporary storage of digitized X-ray or ultrasound frames prior to compression and transmission in portable diagnostic equipment. IC Role / Device Role / Timing Role: High-bandwidth frame buffer interfaced directly to ADC/DAC and image processor buses. Use Value: 16-bit bus width and byte-enable support allow efficient pixel packing and partial-frame updates without bus contention. |
| Avionics Data Logger | Ruggedized Network Router Cache |
Use Scenario: Capturing flight parameter telemetry (GPS, IMU, engine metrics) at 1 kHz sampling rate in airborne black-box recorders. IC Role / Device Role / Timing Role: Circular buffer memory mapped into microcontroller's external memory space; written sequentially with wraparound. Use Value: Low ISB1 (10 µA) extends battery life during extended pre-flight standby; 44-pin TSOP enables compact, shock-resistant layout. | Use Scenario: Caching packet headers and routing tables in edge routers deployed in outdoor telecom cabinets. IC Role / Device Role / Timing Role: External SRAM co-located with network processor for low-latency table lookups and buffer management. Use Value: JEDEC center-power pinout suppresses SSN during burst packet processing; industrial temp rating sustains operation in non-climate-controlled enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar static RAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY62148EV30LL-10ZSXI | 4-Mbit (256K × 16), 10 ns, 3.3 V, but uses different pinout (SOIC-44 vs TSOP-44) and lacks BHE/BLE - requires PCB redesign | Targeted at cost-sensitive consumer electronics; not qualified for extended industrial temp range | Choose only if board redesign is feasible and industrial qualification is unnecessary |
| AS6C4008-10TIN | 4-Mbit (512K × 8), 10 ns, 3.3 V, SOJ-32 package; narrower 8-bit bus and no byte enables - needs external logic for 16-bit interface | Optimized for legacy 8-bit microcontrollers; higher density per pin but incompatible data width | Select when migrating from 8-bit systems and board space is constrained |
Compared with CY62148EV30LL-10ZSXI and AS6C4008-10TIN, the 71V416L10PHGI uniquely delivers industrial-grade 16-bit byte-enabling in a drop-in TSOP footprint - critical for maintaining timing integrity and minimizing layout changes in mission-critical upgrades.
Availability
71V416L10PHGI is available at Aetrix Electronics and suitable for industrial PLCs, medical imaging subsystems, avionics data loggers, and ruggedized network infrastructure requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 71V416L10PHGI 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, and IoT applications.
The 71V416L10PHGI belongs to Renesas' legacy high-reliability SRAM product line, engineered specifically for deterministic, low-power, industrial-grade memory interfacing where refresh-free operation and timing predictability are mandatory.
FAQ
What is the maximum operating temperature range for the 71V416L10PHGI?
The 71V416L10PHGI is rated for industrial operation from –40°C to +85°C. This specification is guaranteed across all AC and DC parameters in the datasheet, including access time (tAA ≤ 10 ns), standby current (ISB1 ≤ 10 µA), and input/output voltage thresholds. The PHGI suffix explicitly denotes the industrial temperature grade, validated per Renesas' qualification standards.
Does the 71V416L10PHGI require a refresh circuit or clock signal?
No, the 71V416L10PHGI is a fully static RAM and requires no refresh circuitry or clock signal. Its internal design uses bistable latches for each memory cell, enabling indefinite data retention as long as power is applied and CS remains high. This eliminates timing-critical refresh overhead in microcontroller or FPGA-based systems, simplifying firmware and guaranteeing deterministic access latency.
Can the 71V416L10PHGI be used with a 5 V microcontroller interface?
No - the 71V416L10PHGI is strictly a 3.3 V LVTTL device. Its absolute maximum input voltage is VDD + 0.5 V (≤ 4.1 V), and VIH minimum is 2.0 V at VDD = 3.0 V. Direct connection to 5 V logic violates absolute maximum ratings and risks permanent damage. Level-shifting circuitry or a 3.3 V-compatible controller is required for safe operation.
What is the function of the BHE and BLE pins on the 71V416L10PHGI?
The BHE (Bus High Enable) and BLE (Bus Low Enable) pins on the 71V416L10PHGI are active-low controls that independently gate the upper (I/O8–I/O15) and lower (I/O0–I/O7) data bytes during write operations. When asserted, they allow selective 8-bit writes without affecting the complementary byte - eliminating external byte-mask logic and reducing PCB complexity in mixed-width bus architectures.
Is the 71V416L10PHGI pin-compatible with other speed grades in the same family?
Yes - all 71V416L variants (e.g., 71V416L12PHGI, 71V416L15PHGI) share identical pinouts, package dimensions, and electrical interface definitions. Only timing parameters differ: tAA increases to 12 ns or 15 ns respectively. This allows direct speed-grade substitution on existing PCBs without layout modification, provided system timing margins accommodate the slower access.
71V416L10PHGI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 44-TSOP (0.400", 10.16mm Width)
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Asynchronous
- Memory Size:
- 4Mbit
- Memory Organization:
- 256K x 16
- 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
71V416L10PHGI FAQ
1.How can I place an order for 71V416L10PHGI through Aetrix?
Please submit a Request for Quotation (RFQ) for 71V416L10PHGI 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 71V416L10PHGI reliable?
The price and inventory of 71V416L10PHGI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 71V416L10PHGI is usually 5 days.
3.What payment methods are accepted for 71V416L10PHGI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 71V416L10PHGI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 71V416L10PHGI?
71V416L10PHGI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 71V416L10PHGI 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 71V416L10PHGI?
For technical support, including 71V416L10PHGI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 71V416L10PHGI requirements.
6.How does Aetrix verify that 71V416L10PHGI is sourced from the original manufacturer or authorized distributors?
All 71V416L10PHGI 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 71V416L10PHGI meets industry standards.
7.What is the process for return or replacement of 71V416L10PHGI?
All 71V416L10PHGI units undergo pre-shipment inspection (PSI). If there is an issue with 71V416L10PHGI, 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 71V416L10PHGI part is unused and in its original packaging.
Return procedure for 71V416L10PHGI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
71V416L10PHGI Tags
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