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Renesas 71V416L15PHGI
- Part No.:
- 71V416L15PHGI
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 44-TSOP (0.400", 10.16mm Width)
- Datasheet:
-
71V416L15PHGI.pdf
- Description:
- IC SRAM 4MBIT PARALLEL 44TSOP II
- Quantity:
- Payment:
- Shipping:
Inventory:163
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Product details
Overview
71V416L15PHGI from Renesas Electronics is a 4 Mbit (256K × 16) low-power, high-speed CMOS static RAM with 15 ns access time, single 3.3 V supply operation, and industrial temperature range (–40°C to +85°C). It features LVTTL-compatible bidirectional I/O, separate byte enable (BHE/BLE), and JEDEC-standard center power/ground pinout for noise reduction - deployed in embedded control, industrial PLCs, and legacy telecom interface buffers.
For engineers reviewing the 71V416L15PHGI datasheet, 71V416L15PHGI pinout, 71V416L15PHGI application, or 71V416L15PHGI equivalent, key selection criteria include industrial-grade timing stability, TSOP-44 package compatibility, byte-level write control, and low dynamic standby current (40 mA max at fMAX).
Technical Context
The 71V416L15PHGI implements fully static asynchronous logic with no clocks or refresh required. Its address decoding supports 18-bit addressing (A0–A17), enabling direct 256K-word access without external address latching.
Read and write cycles are controlled independently via CS, OE, WE, BHE, and BLE inputs, allowing word-, high-byte-, or low-byte-selective operations. Output enable propagation delay is guaranteed ≤7 ns, and chip select deactivation places outputs in high-impedance state within 7 ns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 4,194,304 bits (256K × 16) |
| Access Time (tAA) | 15 ns - defines maximum clock rate for random read in industrial temp |
| Supply Voltage | 3.0 V to 3.6 V - compatible with 3.3 V LVTTL systems; no level-shifting needed |
| Standby Current (ISB) | 40 mA max (industrial) - enables low-power sleep mode in battery-backed controllers |
| Operating Temperature | –40°C to +85°C - qualified for industrial automation and transportation electronics |
| Input/Output Interface | LVTTL-compatible - ensures interoperability with FPGA I/O banks and microcontroller GPIO |
| Package | 44-pin TSOP Type II (PHG44), 400-mil width - surface-mount compatible with standard reflow profiles |
Pinout & Package
71V416L15PHGI is housed in a 44-pin, 400-mil TSOP Type II (PHG44) package with JEDEC-standard center power/ground pinout for reduced switching noise and improved signal integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A17 | Address Inputs | 18-bit address bus for full 256K-word selection; no external latch required |
| CS | Chip Select | Active-low enable; must be stable before address setup to meet tAS = 0 ns |
| OE | Output Enable | Active-low control of output drivers; enables shared bus arbitration |
| WE | Write Enable | Active-low write strobe; controls data flow direction on I/O[0:15] |
| BHE / BLE | Byte Enable | Independent high/low byte write control - eliminates need for external byte masking logic |
| I/O0–I/O15 | Bidirectional Data | 16-bit LVTTL I/O bus; tristated when CS high or OE high |
| VDD / VSS | Power / Ground | Paired center pins (pins 12 & 33, 13 & 32) reduce ground bounce and EMI |
Key Features
| Feature | Design Value |
|---|---|
| Low-power industrial operation | ISB = 40 mA max at VDD = 3.6 V and fMAX, enabling energy-efficient standby in programmable logic controllers |
| Byte-selective write capability | Dedicated BHE/BLE pins allow independent 8-bit writes without external gating or data masking |
| JEDEC-compliant pinout | Center VDD/VSS placement minimizes simultaneous switching noise in dense PCB layouts |
| Asynchronous static architecture | No clocks, no refresh, no wait states - simplifies timing design in real-time deterministic systems |
| LVTTL interface compatibility | Direct connection to Xilinx Spartan-6, Intel MAX 10, and Renesas RX microcontroller GPIO without level shifters |
Applications
| Industrial PLC Memory Buffer | Legacy Telecom Line Card Cache |
|---|---|
Use Scenario: Real-time I/O mapping and register caching in modular programmable logic controllers requiring deterministic memory access under vibration and wide temperature swings. IC Role / Device Role / Timing Role: Asynchronous SRAM buffer between CPU and field I/O modules, providing sub-20 ns read/write latency with zero refresh overhead. Use Value: Enables cycle-accurate response to hardware interrupts and eliminates DRAM refresh jitter in motion control loops. | Use Scenario: Packet header buffering and protocol translation in TDM-based voice line cards operating in central office environments. IC Role / Device Role / Timing Role: High-reliability, non-refreshing memory for storing configuration tables and transient signaling data in E1/T1 framing engines. Use Value: Guarantees data retention across power brownouts and thermal cycling due to fully static CMOS design and industrial qualification. |
| Avionics Display Controller Frame Buffer | Ruggedized Test Equipment Data Log |
Use Scenario: Small-frame pixel buffer in certified cockpit display units where radiation tolerance and long-term data integrity are critical. IC Role / Device Role / Timing Role: Dual-port-capable SRAM used as write-to-read pipeline buffer for graphics controller FIFO management. Use Value: Eliminates DRAM controller complexity and ECC overhead while meeting DO-254 functional safety requirements via predictable timing. | Use Scenario: High-cycle data capture in portable field test sets logging sensor waveforms during extended environmental stress testing. IC Role / Device Role / Timing Role: Burst-mode write buffer accepting ADC samples at up to 66 MHz effective rate using byte-enable optimization. Use Value: Reduces host processor load by enabling atomic 8-bit writes to preserve timestamp alignment without software byte masking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed industrial SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY62167EV30LL-15ZSXI | 4 Mbit (256K × 16), 15 ns, 3.3 V, SOIC-44 package; higher ISB (60 mA) and no BGA option | SOIC footprint requires PCB redesign vs. TSOP; less suitable for space-constrained industrial modules | Choose when board layout already uses SOIC-44 and thermal derating margin exists for higher standby current |
| AS6C4008-15TIN | 4 Mbit (256K × 16), 15 ns, 3.3 V, TSOP-44; lower ICC (140 mA vs. 160 mA) but no industrial temp grade | Commercial-only (0°C to +70°C); unsuitable for uncontrolled ambient deployments like outdoor base stations | Acceptable only in thermally managed enclosures with active cooling and ambient monitoring |
Compared with CY62167EV30LL-15ZSXI and AS6C4008-15TIN, the 71V416L15PHGI uniquely combines industrial temperature rating, TSOP-44 footprint, byte-enable flexibility, and JEDEC noise-optimized pinout - making it the only drop-in solution for legacy industrial designs requiring zero layout change and guaranteed -40°C startup.
Availability
71V416L15PHGI is available at Aetrix Electronics and suitable for industrial PLCs, avionics display controllers, and ruggedized test equipment requiring stable component supply across extended product lifecycles.
Supply support for 71V416L15PHGI 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 71V416L15PHGI belongs to Renesas' legacy high-speed SRAM product line, designed specifically for industrial and telecom systems demanding deterministic timing, long-term reliability, and pin-compatible migration paths from earlier IDT-generation devices.
FAQ
What is the maximum operating frequency supported by the 71V416L15PHGI?
The 71V416L15PHGI does not operate on a clock; it is an asynchronous SRAM. Its 15 ns access time (tAA) supports effective system bus frequencies up to approximately 66 MHz in burst-read configurations, assuming address and control setup/hold timing is met. Cycle time (tRC) is also 15 ns, limiting sustained random-access throughput.
Does the 71V416L15PHGI require external refresh circuitry?
No, the 71V416L15PHGI is a fully static CMOS SRAM and requires no refresh cycles, clocks, or external timing control. Data retention is maintained indefinitely as long as VDD remains within specification and the device stays within its industrial temperature range.
Can the 71V416L15PHGI be used with 5 V logic interfaces?
No - the 71V416L15PHGI 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. Direct connection to 5 V systems risks damage or undefined behavior; level translation is mandatory for mixed-voltage designs.
What is the function of the NC pins on the 71V416L15PHGI TSOP package?
The 71V416L15PHGI TSOP package has two NC (No Connect) pins: Pin 1 (top-left corner) and Pin 44 (bottom-right corner) per the PHG44 pinout diagram. These pins are internally unconnected and must remain floating - they should not be tied to VDD, VSS, or any signal to avoid parasitic coupling or ESD path issues.
How does the 71V416L15PHGI handle simultaneous byte writes to high and low bytes?
The 71V416L15PHGI supports concurrent high- and low-byte writes when both BHE and BLE are asserted low with WE low - effectively performing a full 16-bit word write. This is electrically identical to asserting both byte enables, and timing follows the word write specifications (tWP = 10 ns min, tDW = 7 ns min).
71V416L15PHGI 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:
- 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:
- 44-TSOP II
71V416L15PHGI FAQ
1.How can I place an order for 71V416L15PHGI through Aetrix?
Please submit a Request for Quotation (RFQ) for 71V416L15PHGI 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 71V416L15PHGI reliable?
The price and inventory of 71V416L15PHGI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 71V416L15PHGI is usually 5 days.
3.What payment methods are accepted for 71V416L15PHGI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 71V416L15PHGI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 71V416L15PHGI?
71V416L15PHGI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 71V416L15PHGI 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 71V416L15PHGI?
For technical support, including 71V416L15PHGI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 71V416L15PHGI requirements.
6.How does Aetrix verify that 71V416L15PHGI is sourced from the original manufacturer or authorized distributors?
All 71V416L15PHGI 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 71V416L15PHGI meets industry standards.
7.What is the process for return or replacement of 71V416L15PHGI?
All 71V416L15PHGI units undergo pre-shipment inspection (PSI). If there is an issue with 71V416L15PHGI, 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 71V416L15PHGI part is unused and in its original packaging.
Return procedure for 71V416L15PHGI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
71V416L15PHGI 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
Microchip Technology
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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
Microchip Technology
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