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Renesas 71V416L15BEGI8
- Part No.:
- 71V416L15BEGI8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 48-TFBGA
- Datasheet:
-
71V416L15BEGI8.pdf
- Description:
- IC SRAM 4MBIT PARALLEL 48CABGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,396
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Product details
Overview
71V416L15BEGI8 from Renesas Electronics is a 4,194,304-bit (256K × 16) high-speed CMOS static RAM with 15 ns read/write cycle 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 71V416L15BEGI8 datasheet, 71V416L15BEGI8 pinout, 71V416L15BEGI8 application, or 71V416L15BEGI8 equivalent, key selection criteria include its 15 ns access time, low-power standby current (40 mA max), TSOP Type II package compatibility, and byte-level write control for partial-word updates in real-time systems.
Technical Context
The 71V416L15BEGI8 implements fully static asynchronous logic with no clocks or refresh required. Its architecture includes independent high- and low-byte write paths controlled by BHE and BLE, enabling selective 8-bit writes without disturbing adjacent data.
It uses LVTTL-compatible input thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V) and delivers VOH ≥ 2.4 V at –4 mA and VOL ≤ 0.4 V at 8 mA under minimum VDD (3.0 V), ensuring robust signal integrity in mixed-voltage 3.3 V systems with legacy 5 V tolerant receivers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 4,194,304 bits (256K × 16) - supports 16-bit data bus systems without external multiplexing. |
| Access Time (tAA) | 15 ns max - determines minimum address hold before valid data appears on I/O pins during read cycles. |
| Read Cycle Time (tRC) | 15 ns max - defines shortest interval between successive read operations on same address. |
| Supply Voltage | 3.0 V to 3.6 V - compatible with standard 3.3 V rail; tolerates ±10% variation without derating. |
| Standby Current (ISB) | 40 mA max (industrial grade) - enables low-power sleep mode when CS high, critical for energy-constrained edge nodes. |
| Operating Temperature | –40°C to +85°C - qualified for industrial automation, motor drives, and outdoor base station equipment. |
| I/O Capacitance | 8 pF max (SOJ/TSOP) - limits trace loading and preserves signal rise/fall times up to 100 MHz bus rates. |
Pinout & Package
71V416L15BEGI8 is packaged in a 44-pin, 400-mil TSOP Type II (PHG44) with JEDEC-standard center power/ground layout (VDD/VSS at pins 12/11 and 33/32) to minimize simultaneous switching noise.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A17 | Address Inputs | 18-bit address bus supporting full 256K word addressing; no internal latching - requires stable address during CS low. |
| CS | Chip Select | Active-low enable; device enters standby (high-Z I/O, low ICC) when high; controls overall memory activation. |
| OE | Output Enable | Active-low; gates output drivers independently of CS/WE - allows read data gating without deselecting chip. |
| WE | Write Enable | Active-low; initiates write cycle when CS and BHE/BLE are also low; controls write pulse timing (tWP ≥ 10 ns). |
| BHE / BLE | Byte Enable | Independent active-low controls for upper (I/O8–I/O15) and lower (I/O0–I/O7) bytes - enables 8-bit partial writes. |
| I/O0–I/O15 | Bidirectional Data | LVTTL-compatible 16-bit data bus; high-impedance when CS high or OE high - supports bus sharing in multi-peripheral systems. |
| VDD / VSS | Power / Ground | Single 3.3 V supply; center-placed VDD/VSS pairs reduce ground bounce and improve EMI performance. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC Center Power/Ground Pinout | Reduces simultaneous switching noise by symmetrically distributing VDD/VSS across package center - improves signal integrity in dense PCB layouts. |
| Separate Byte Write Control (BHE/BLE) | Enables atomic 8-bit writes without read-modify-write sequences - essential for real-time firmware update buffers and dual-port emulation. |
| 15 ns Access + Full Static Operation | No clocks or refresh needed; eliminates timing-critical refresh overhead and simplifies controller design in FPGA- or MCU-based systems. |
| LVTTL-Compatible I/O | Direct interface to 3.3 V microcontrollers and FPGAs without level shifters - reduces BOM count and board area in cost-sensitive designs. |
| Industrial Temperature Range | Guaranteed operation from –40°C to +85°C - validated for deployment in uncontrolled environments like factory floors and outdoor cabinets. |
Applications
| Industrial PLC Memory Buffer | Legacy Telecom Line Card Cache |
|---|---|
|
Use Scenario: Storing real-time I/O status and configuration registers in programmable logic controllers with deterministic scan cycles. IC Role / Device Role / Timing Role: Asynchronous SRAM buffer providing sub-20 ns read/write access for fast state machine execution and watchdog-triggered data capture. Use Value: Eliminates wait states in ARM Cortex-M4 or ColdFire-based PLC CPUs, enabling 10 kHz I/O update rates without DMA bottlenecks. |
Use Scenario: Caching protocol translation tables and frame alignment buffers in T1/E1 line interface units (LIUs) operating in legacy telecom infrastructure. IC Role / Device Role / Timing Role: High-reliability static RAM holding channelized DS0 mapping data and HDLC flag detection history with zero refresh overhead. Use Value: Ensures bit-error-free operation over 20+ year deployments via radiation-hardened CMOS process and industrial-grade thermal cycling qualification. |
| Medical Imaging Frame Store | Avionics Display Controller Buffer |
|
Use Scenario: Temporary storage of digitized ultrasound or X-ray sensor frames prior to compression and transmission in portable diagnostic devices. IC Role / Device Role / Timing Role: Burst-access SRAM interfacing directly to ADC output and image processor input buses using byte-enable granularity. Use Value: Supports 12-bit pixel depth at 30 fps via 16-bit bus width and 15 ns cycle time - avoids FIFO overflow during peak acquisition bursts. |
Use Scenario: Holding rendered GUI layers and font glyph caches in certified flight display units where deterministic latency is mandated by DO-254. IC Role / Device Role / Timing Role: Non-volatile-configurable SRAM acting as display list memory with guaranteed access within 15 ns for real-time overlay rendering. Use Value: Meets ARINC 661 latency budgets through static timing closure - no dynamic refresh jitter affecting HUD symbol placement accuracy. |
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-45ZSXI | 256K × 16, 45 ns access, 3.3 V, SOIC-44 - slower but higher noise immunity due to larger process node. | Suitable for non-real-time data logging where 15 ns timing is not required. | Choose for cost-sensitive, low-frequency control applications where extended lifecycle support is prioritized over speed. |
| AS6C4008-15TIN | 256K × 16, 15 ns access, 3.3 V, TSOP-44 - identical timing but lower standby current (25 mA vs. 40 mA) and no BHE/BLE pins. | Requires external logic for byte masking; less flexible for partial-word writes. | Prefer when minimizing quiescent power is critical and byte-select functionality is handled externally. |
Compared with CY62167EV30LL-45ZSXI and AS6C4008-15TIN, the 71V416L15BEGI8 uniquely combines industrial-grade 15 ns timing, integrated byte enables, and JEDEC-compliant noise-reducing pinout - making it optimal for deterministic real-time memory subsystems where both speed and signal integrity are co-constrained.
Availability
71V416L15BEGI8 is available at Aetrix Electronics and suitable for industrial PLCs, legacy telecom line cards, medical imaging subsystems, and avionics display controllers requiring stable component supply across extended product lifecycles.
Supply support for 71V416L15BEGI8 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 is a global semiconductor leader specializing in microcontrollers, analog, power, and memory solutions for industrial, automotive, and infrastructure markets.
The 71V416L15BEGI8 belongs to Renesas' legacy high-speed CMOS SRAM family, designed specifically for deterministic, low-latency memory buffering in real-time embedded systems where refresh-free operation and industrial reliability are mandatory.
FAQ
What is the maximum operating frequency supported by the 71V416L15BEGI8?
The 71V416L15BEGI8 does not operate on a clock; it is an asynchronous SRAM. Its 15 ns read cycle time (tRC) and 15 ns access time (tAA) define the fastest achievable random read rate - approximately 66.7 MHz sustained if address changes align with cycle boundaries. No clock input is required or provided on the 71V416L15BEGI8.
Does the 71V416L15BEGI8 support partial-word writes without read-modify-write cycles?
Yes. The 71V416L15BEGI8 provides dedicated BHE (high byte enable) and BLE (low byte enable) inputs, allowing independent 8-bit writes to I/O8–I/O15 or I/O0–I/O7. This eliminates the need for read-modify-write sequences and ensures atomic byte updates - a core capability confirmed in the Truth Table and functional block diagram of the 71V416L15BEGI8 datasheet.
Is the 71V416L15BEGI8 pin-compatible with other speed grades in the 71V416L family?
Yes. All 71V416L variants (e.g., 71V416L10, 71V416L12, 71V416L15) share identical pinouts, package dimensions, and electrical interface - only timing parameters differ. The 71V416L15BEGI8 can be substituted for slower versions in the same PHG44 TSOP footprint without PCB modification, though timing margins must be re-verified.
What is the meaning of the 'I' and '8' suffixes in 71V416L15BEGI8?
In 71V416L15BEGI8, 'I' denotes Industrial temperature grade (–40°C to +85°C), and '8' indicates tape-and-reel packaging (standard for automated SMT assembly). The 'BEG' portion specifies the 48-ball fine-pitch BGA variant (BEG48), confirming this part uses the 9 mm × 9 mm CABGA package - consistent with Renesas' ordering information table for the 71V416L15BEGI8.
Can the 71V416L15BEGI8 be used with 5 V-tolerant microcontrollers?
No. The 71V416L15BEGI8 is strictly a 3.3 V LVTTL device: VIH min = 2.0 V, VIL max = 0.8 V, and absolute max input voltage is VDD + 0.5 V (≤ 4.1 V). Direct connection to 5 V logic violates absolute maximum ratings. Level translation is required when interfacing with true 5 V controllers - a constraint explicitly defined in the DC Operating Conditions table for the 71V416L15BEGI8.
71V416L15BEGI8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 48-TFBGA
- Packaging:
- Tape & Reel (TR)
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-CABGA (9x9)
71V416L15BEGI8 FAQ
1.How can I place an order for 71V416L15BEGI8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 71V416L15BEGI8 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 71V416L15BEGI8 reliable?
The price and inventory of 71V416L15BEGI8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 71V416L15BEGI8 is usually 5 days.
3.What payment methods are accepted for 71V416L15BEGI8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 71V416L15BEGI8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 71V416L15BEGI8?
71V416L15BEGI8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 71V416L15BEGI8 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 71V416L15BEGI8?
For technical support, including 71V416L15BEGI8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 71V416L15BEGI8 requirements.
6.How does Aetrix verify that 71V416L15BEGI8 is sourced from the original manufacturer or authorized distributors?
All 71V416L15BEGI8 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 71V416L15BEGI8 meets industry standards.
7.What is the process for return or replacement of 71V416L15BEGI8?
All 71V416L15BEGI8 units undergo pre-shipment inspection (PSI). If there is an issue with 71V416L15BEGI8, 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 71V416L15BEGI8 part is unused and in its original packaging.
Return procedure for 71V416L15BEGI8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
71V416L15BEGI8 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
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