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Renesas 71V416S15BEG
- Part No.:
- 71V416S15BEG
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 48-TFBGA
- Datasheet:
-
71V416S15BEG.pdf
- Description:
- IC SRAM 4MBIT PARALLEL 48CABGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,777
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Product details
Overview
71V416S15BEG from Renesas Electronics is a 4-Mbit (256K × 16) high-speed CMOS static RAM with 15 ns read/write cycle time, single 3.3 V supply operation, and LVTTL-compatible bidirectional I/O. It features separate byte enable (BHE/BLE), output enable (OE), and chip select (CS) for flexible memory access in embedded controllers and industrial data buffers.
For engineers reviewing the 71V416S15BEG datasheet, 71V416S15BEG pinout, 71V416S15BEG application, or 71V416S15BEG equivalent, key selection criteria include 15 ns access timing, 48-ball BGA (BEG48) package compatibility, industrial-grade temperature support (–40°C to +85°C), and low-power standby current of 50 mA (dynamic) / 10 mA (static).
Technical Context
The 71V416S15BEG implements fully static asynchronous circuitry-no clocks or refresh required-and uses JEDEC-standard center power/ground pinout to minimize switching noise. Its dual-byte enable architecture supports independent high- and low-byte writes without external logic.
Operation is defined by three control hierarchies: CS enables device selection, OE gates output drivers, and WE controls write direction; BHE/BLE further qualify which 8-bit half of the 16-bit bus is active during read or write cycles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 4,194,304 bits (256K × 16 organization) |
| Access Time (tAA) | 15 ns - defines maximum clock rate for address-stable-to-data-valid path in synchronous interfaces |
| Cycle Time (tRC) | 15 ns - minimum interval between successive read or write operations |
| Supply Voltage | 3.0 V to 3.6 V - compatible with standard 3.3 V logic rails; no level-shifting needed |
| Standby Current (ISB1) | 10 mA - static current when CS inactive; enables low-power sleep modes in portable systems |
| I/O Interface | LVTTL-compatible - ensures direct connection to 3.3 V microcontrollers and FPGAs without interface buffers |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments including motor drives and PLCs |
Pinout & Package
71V416S15BEG is packaged in a 48-ball fine-pitch BGA (BEG48), 9 mm × 9 mm, with 0.8 mm ball pitch. Pin 28 is NC or optionally connected to VSS per design flexibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A17 | Address Inputs | 18-bit address bus supporting full 256K-word addressing; no external decoding required |
| CS | Chip Select | Active-low global enable; deactivates all internal circuitry to reduce dynamic power |
| OE | Output Enable | Active-low control for output drivers; allows shared bus operation with other devices |
| WE | Write Enable | Active-low signal determining data flow direction on I/O[0:15]; enables true bidirectional operation |
| BHE / BLE | Byte Enable | Independent high/low byte gating - permits 8-bit writes without corrupting adjacent byte |
| I/O0–I/O15 | Bidirectional Data | 16-bit LVTTL I/O bus; internally terminated for impedance matching in high-speed traces |
| VDD / VSS | Power / Ground | Center-placed VDD/VSS pins per JEDEC standard - reduces simultaneous switching noise (SSN) |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC Center Power/Ground Pinout | Minimizes ground bounce and supply rail noise during high-frequency address/data transitions |
| Separate Byte Enables (BHE/BLE) | Enables partial-word writes without read-modify-write cycles - critical for real-time firmware updates |
| 15 ns Equal Access/Cycle Times | Eliminates timing asymmetry between read and write paths - simplifies timing closure in FPGA-based controllers |
| Single 3.3 V Supply | Removes need for dual-voltage regulators or level translators - reduces BOM count and layout complexity |
| Industrial Temperature Range | Validated operation from –40°C to +85°C - suitable for under-hood automotive modules and factory-floor equipment |
Applications
| Industrial PLC Memory Buffer | Medical Imaging Frame Store |
|---|---|
Use Scenario: Stores real-time I/O scan data and ladder logic state variables in programmable logic controllers operating in harsh electrical environments. IC Role / Device Role / Timing Role: Asynchronous SRAM buffer interfacing directly with ARM Cortex-M7 or RISC-V MCU buses at up to 66 MHz effective throughput. Use Value: 15 ns access time ensures deterministic response within 100 µs scan cycles; BEG48 package supports compact, thermally robust PCB layouts. | Use Scenario: Holds uncompressed grayscale image frames (e.g., 1024×768 @ 16 bpp) during acquisition and preprocessing in portable ultrasound units. IC Role / Device Role / Timing Role: High-bandwidth frame buffer providing burst-mode reads/writes to FPGA-based image pipelines without DRAM latency penalties. Use Value: LVTTL compatibility eliminates level shifters; low 10 mA ISB1 enables battery-powered operation during idle periods. |
| Avionics Data Logger | Test & Measurement Equipment |
Use Scenario: Captures high-speed sensor telemetry (e.g., inertial measurement unit outputs) in airborne flight recorders requiring extended thermal reliability. IC Role / Device Role / Timing Role: Non-volatile-critical scratchpad memory holding pre-triggered waveform snapshots before flash storage transfer. Use Value: Industrial-grade temperature qualification and 48-ball BGA mechanical stability meet DO-160E vibration requirements. | Use Scenario: Serves as acquisition memory in digital oscilloscopes and logic analyzers capturing multi-channel signals at >100 MS/s. IC Role / Device Role / Timing Role: High-speed parallel memory interfacing with ASIC or FPGA front-end processors for real-time waveform buffering. Use Value: Equal 15 ns read/write cycle time enables seamless ping-pong buffering; JEDEC pinout suppresses EMI in sensitive analog measurement zones. |
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 |
|---|---|---|---|
| CY62167EV30LL-15ZSXI | 16 Mbit (1M × 16), 15 ns, 3.3 V; larger density but same timing and BGA-48 footprint | Used where longer capture depth is required without changing PCB layout | Select when system requires >4 Mbit capacity while retaining identical timing and package constraints |
| AS6C4008-15TIN | 4 Mbit (256K × 16), 15 ns, 3.3 V; TSOP-44 package, not BGA | Suitable for cost-sensitive, lower-density industrial boards with legacy SOJ/TSOP footprints | Choose only if board redesign for BGA is not feasible and thermal/mechanical demands are less stringent |
Compared with CY62167EV30LL-15ZSXI, the 71V416S15BEG offers identical speed and voltage but lower density and proven industrial thermal performance; versus AS6C4008-15TIN, it provides superior mechanical reliability via BGA packaging but requires PCB re-layout.
Availability
71V416S15BEG is available at Aetrix Electronics and suitable for industrial PLCs, medical imaging subsystems, avionics data loggers, and test & measurement equipment requiring stable component supply across extended product lifecycles.
Supply support for 71V416S15BEG 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 71V416S15BEG belongs to Renesas' legacy high-speed SRAM product line, designed specifically for deterministic, low-latency memory interfacing in real-time control and data acquisition systems.
FAQ
What is the maximum operating frequency supported by the 71V416S15BEG?
The 71V416S15BEG does not use a clock; its performance is specified by timing parameters-not frequency. With a 15 ns read cycle time (tRC) and 15 ns access time (tAA), it supports effective bus throughput up to approximately 66.7 MHz in burst-mode configurations when interfaced with controllers that meet setup/hold timing margins. Actual achievable bandwidth depends on bus protocol overhead and controller capabilities.
Does the 71V416S15BEG require external refresh circuitry?
No, the 71V416S15BEG is a fully static RAM and requires no refresh cycles or clocks. Its internal latches retain data indefinitely as long as VDD remains within specification (3.0 V–3.6 V) and CS is held active during access. This eliminates refresh-related timing constraints and software overhead in microcontroller-based designs.
Can the 71V416S15BEG be used with 5 V logic systems?
No-the 71V416S15BEG 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 logic risks damage and violates DC operating conditions. Level translation (e.g., TXB0108 or discrete resistor dividers) is mandatory for interoperability with 5 V systems.
What is the function of Pin 28 on the BEG48 package of the 71V416S15BEG?
Per the official Renesas datasheet, Pin 28 on the 71V416S15BEG's BEG48 package is designated NC (No Connect), though it may optionally be tied to VSS for improved grounding in high-noise environments. This flexibility supports both noise-sensitive and space-constrained PCB layouts without altering functionality.
How does the 71V416S15BEG handle simultaneous byte writes to high and low halves of the data bus?
When both BHE and BLE are asserted low, the 71V416S15BEG performs a full 16-bit word write-no arbitration or sequencing is required. The device internally gates both byte paths concurrently, ensuring atomic 16-bit updates. This behavior is confirmed in the Truth Table (Table 3) and eliminates the need for external write strobe synchronization logic.
71V416S15BEG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 48-TFBGA
- Packaging:
- Tray
- Product Status:
- Obsolete
- 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-CABGA (9x9)
71V416S15BEG FAQ
1.How can I place an order for 71V416S15BEG through Aetrix?
Please submit a Request for Quotation (RFQ) for 71V416S15BEG 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 71V416S15BEG reliable?
The price and inventory of 71V416S15BEG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 71V416S15BEG is usually 5 days.
3.What payment methods are accepted for 71V416S15BEG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 71V416S15BEG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 71V416S15BEG?
71V416S15BEG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 71V416S15BEG 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 71V416S15BEG?
For technical support, including 71V416S15BEG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 71V416S15BEG requirements.
6.How does Aetrix verify that 71V416S15BEG is sourced from the original manufacturer or authorized distributors?
All 71V416S15BEG 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 71V416S15BEG meets industry standards.
7.What is the process for return or replacement of 71V416S15BEG?
All 71V416S15BEG units undergo pre-shipment inspection (PSI). If there is an issue with 71V416S15BEG, 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 71V416S15BEG part is unused and in its original packaging.
Return procedure for 71V416S15BEG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
71V416S15BEG Tags
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AT24C02C-XHM-T
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AT21CS01-STUM10-T
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M24C02-FMC6TG
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AT24CS02-SSHM-T
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