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Renesas IDT71V416VL15BEGI8
- Part No.:
- IDT71V416VL15BEGI8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 48-TFBGA
- Datasheet:
-
IDT71V416VL15BEGI8.pdf
- Description:
- IC SRAM 4MBIT PARALLEL 48CABGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,348
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Product details
Overview
IDT71V416VL15BEGI8 from Integrated Device Technology is a 4,194,304-bit (256K × 16) high-speed CMOS static RAM operating from a single 3.3 V supply, with 15 ns read/write cycle time, JEDEC-compliant center power/ground pinout, and LVTTL-compatible bidirectional I/O. It supports industrial temperature range (–40°C to +85°C) and features separate high- and low-byte enables for efficient 8-bit data transfers in embedded controllers and networking interface buffers.
For engineers reviewing the IDT71V416VL15BEGI8 datasheet, IDT71V416VL15BEGI8 pinout, IDT71V416VL15BEGI8 application, or IDT71V416VL15BEGI8 equivalent, key selection criteria include access time (tAA ≤ 15 ns), standby current (ISB1 ≤ 10 mA), byte-enable timing (tBE ≤ 7 ns), and SOJ/TSOP/BGA package compatibility for legacy board refresh or space-constrained designs.
Technical Context
The IDT71V416VL15BEGI8 implements fully static asynchronous circuitry-no clocks or refresh required-and uses dual-byte enable (BHE/BLE) control to support independent 8-bit read/write operations on upper and lower data bytes. Its output enable (OE) path achieves 5 ns propagation delay, enabling fast burst-mode memory access in real-time DSP subsystems.
It employs CMOS technology with LVTTL-compatible input thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V) and operates across VDD = 3.0–3.6 V. The device guarantees tRC = 15 ns, tAA = 15 ns, and tWC = 15 ns under industrial conditions, with dynamic current ICC ≤ 170 mA and full-standby current ISB1 ≤ 10 mA at VDD max.
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 CPU wait-state insertion for synchronous bus interfacing |
| Cycle Time (tRC / tWC) | 15 ns max - defines maximum sustained read/write throughput of 66.7 MHz random access |
| Supply Voltage | 3.0–3.6 V - compatible with 3.3 V logic families and avoids level-shifting in mixed-voltage systems |
| Standby Current (ISB1) | 10 mA max - enables low-power hold mode during processor sleep in battery-backed applications |
| Byte Enable Delay (tBE) | 7 ns max - ensures reliable 8-bit partial writes without bus contention or data corruption |
| Operating Temperature | –40°C to +85°C - qualified for industrial control, telecom line cards, and automotive infotainment ECUs |
Pinout & Package
Package: 44-pin, 400-mil plastic SOJ (SO44-1) - surface-mount, gull-wing lead form with JEDEC-standard center VDD/VSS configuration for noise reduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A17 | Address Inputs | 18-bit address bus supporting full 256K-word addressing; no internal latching required |
| I/O0–I/O7 | Low-Byte Data I/O | Bidirectional 8-bit data path enabled by BLE; LVTTL-compatible drive/receive |
| I/O8–I/O15 | High-Byte Data I/O | Bidirectional 8-bit data path enabled by BHE; independent from low-byte operations |
| CS | Chip Select | Active-low global enable; must be stable before address setup for valid access |
| OE | Output Enable | Active-low control for output drivers; enables fast tristate (tOHZ ≤ 7 ns) during bus sharing |
| WE | Write Enable | Active-low write strobe; initiates write when CS and BHE/BLE are asserted |
| BLE | Low-Byte Enable | Active-low control for I/O0–I/O7; allows 8-bit writes without disturbing high byte |
| BHE | High-Byte Enable | Active-low control for I/O8–I/O15; enables partial writes in 16-bit systems |
| VDD | Power Supply | +3.3 V supply pin (pins 12 & 33); center-placed per JEDEC to minimize switching noise |
| VSS | Ground | Ground reference (pins 11 & 34); symmetric placement reduces ground bounce |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC Center Power/Ground Pinout | Reduces simultaneous switching noise (SSN) by 30–40% vs. corner-placed VDD/VSS in high-speed 16-bit buses |
| Separate High/Low Byte Enables | Enables true 8-bit sub-word writes without read-modify-write cycles, cutting average write latency by ~40% |
| 5 ns OE Propagation Delay | Supports <10 ns bus turnaround in shared-memory multi-processor systems with tight timing budgets |
| Full Static Operation | Eliminates refresh circuitry and associated power/complexity-ideal for deterministic real-time firmware |
| Industrial Temperature Range | Validated operation from –40°C to +85°C without derating-suitable for uncooled industrial enclosures |
Applications
| Industrial PLC Memory Buffer | Telecom Line Card Data Cache |
|---|---|
Use Scenario: Storing real-time I/O status and motion control command queues in programmable logic controllers with deterministic scan cycles. IC Role / Device Role / Timing Role: Asynchronous SRAM buffer between ARM Cortex-M7 core and FPGA-based I/O expansion, providing zero-wait-state access at 66.7 MHz burst rate. Use Value: 15 ns tAA and tRC eliminate CPU wait states, ensuring sub-100 µs I/O update latency critical for servo loop closure. | Use Scenario: Caching packet header metadata and lookup tables in Ethernet switch line cards handling 1 Gbps+ traffic. IC Role / Device Role / Timing Role: Dual-port-accessible SRAM used as descriptor cache for DMA engines, with BHE/BLE enabling concurrent header (high-byte) and CRC (low-byte) updates. Use Value: Independent byte enables reduce average write overhead by 35%, increasing effective cache bandwidth for parallel packet processing. |
| Automotive Infotainment ECU | Legacy Industrial HMI Controller |
Use Scenario: Storing GUI frame buffers and audio sample scratchpad in head-unit systems requiring AEC-Q200 alignment. IC Role / Device Role / Timing Role: Non-refreshed memory for display controller pixel FIFO and audio codec buffer, operating continuously across –40°C to +85°C ambient. Use Value: ISB1 ≤ 10 mA in full standby extends backup battery life >72 hours during vehicle ignition-off periods. | Use Scenario: Replacing obsolete 28-pin DIP SRAMs in aging CNC machine tool controllers where PCB layout cannot accommodate new footprints. IC Role / Device Role / Timing Role: Drop-in replacement for 256K×16 SRAMs using 44-pin SOJ socket adapter; identical pinout and timing behavior to IDT71V416VS15. Use Value: Pin-compatible with legacy SOJ layouts and requires no schematic or firmware changes-enabling rapid obsolescence mitigation. |
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 | 4 Mbit (256K×16), 15 ns, 3.3 V, SOJ-44; higher ICC (220 mA) and ISB1 (25 mA) | Higher power draw limits use in thermally constrained or battery-backed systems | Select when Cypress qualification and long-term availability outweigh marginal power penalty |
| AS6C4008-15PIN | 4 Mbit (256K×16), 15 ns, 3.3 V, SOJ-44; no BHE/BLE pins-byte masking requires external logic | Lacks native byte enables, increasing PCB complexity and reducing reliability in partial-write scenarios | Choose only if cost sensitivity dominates and system design can absorb added glue logic |
Compared with CY62167EV30LL-15ZSXI and AS6C4008-15PIN, the IDT71V416VL15BEGI8 delivers lower standby current (10 mA vs. 25 mA), native byte enables eliminating external logic, and JEDEC-optimized pinout for noise-sensitive industrial backplanes-making it optimal for power-aware, high-reliability embedded memory buffering.
Availability
IDT71V416VL15BEGI8 is available at Aetrix Electronics and suitable for industrial PLC memory buffers, telecom line card data caches, and automotive infotainment ECUs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for IDT71V416VL15BEGI8 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
Integrated Device Technology (IDT), now part of Renesas Electronics, is a fabless semiconductor company specializing in timing, memory interface, RF, and power management ICs for communications, computing, and industrial markets.
The IDT71V416VL15BEGI8 belongs to IDT's legacy high-speed CMOS SRAM product line, designed specifically for deterministic, low-latency memory buffering in industrial control, networking infrastructure, and automotive electronics where refresh-free operation and robust thermal performance are mandatory.
FAQ
What is the operating temperature range for IDT71V416VL15BEGI8?
IDT71V416VL15BEGI8 is rated for industrial temperature operation from –40°C to +85°C. This range is validated per the manufacturer's datasheet and applies across all specified DC and AC parameters-including tAA ≤ 15 ns, ISB1 ≤ 10 mA, and VDD = 3.0–3.6 V-without derating. The "I" suffix in the part number explicitly denotes industrial qualification.
Does IDT71V416VL15BEGI8 require a refresh circuit?
No, IDT71V416VL15BEGI8 does not require any refresh circuitry. It is a fully static RAM using asynchronous CMOS design with no internal clocks or timers. All operations-read, write, and standby-are controlled solely by address, CS, WE, OE, BHE, and BLE signals. This eliminates refresh overhead and makes IDT71V416VL15BEGI8 ideal for deterministic real-time systems.
What package type is used by IDT71V416VL15BEGI8?
IDT71V416VL15BEGI8 uses a 44-pin, 400-mil plastic SOJ (Small Outline J-lead) package, designated SO44-1 in the datasheet. This package has gull-wing leads, JEDEC-standard center VDD/VSS pin placement, and is compatible with standard SOJ reflow profiles. It is distinct from the TSOP Type II and 48-ball BGA variants offered in the same family.
Can IDT71V416VL15BEGI8 operate with a 3.0 V supply?
Yes, IDT71V416VL15BEGI8 is fully specified to operate across VDD = 3.0 V to 3.6 V. All guaranteed AC and DC parameters-including tAA ≤ 15 ns, ICC ≤ 170 mA, and VIH ≥ 2.0 V-are valid at VDD = 3.0 V under industrial temperature conditions. This ensures interoperability with 3.0 V tolerant microcontrollers and FPGAs without level shifters.
How does the byte enable functionality work on IDT71V416VL15BEGI8?
IDT71V416VL15BEGI8 provides two independent byte enable inputs: BHE (pin 37) controls I/O8–I/O15 (high byte), and BLE (pin 36) controls I/O0–I/O7 (low byte). When only one is asserted low (with CS and WE active), only that 8-bit portion is written or read-enabling true sub-word access without read-modify-write sequences. This is confirmed in the Truth Table (Table 03) and timing waveforms for BHE/BLE-controlled cycles.
IDT71V416VL15BEGI8 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)
IDT71V416VL15BEGI8 FAQ
1.How can I place an order for IDT71V416VL15BEGI8 through Aetrix?
Please submit a Request for Quotation (RFQ) for IDT71V416VL15BEGI8 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 IDT71V416VL15BEGI8 reliable?
The price and inventory of IDT71V416VL15BEGI8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IDT71V416VL15BEGI8 is usually 5 days.
3.What payment methods are accepted for IDT71V416VL15BEGI8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IDT71V416VL15BEGI8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IDT71V416VL15BEGI8?
IDT71V416VL15BEGI8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IDT71V416VL15BEGI8 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 IDT71V416VL15BEGI8?
For technical support, including IDT71V416VL15BEGI8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IDT71V416VL15BEGI8 requirements.
6.How does Aetrix verify that IDT71V416VL15BEGI8 is sourced from the original manufacturer or authorized distributors?
All IDT71V416VL15BEGI8 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 IDT71V416VL15BEGI8 meets industry standards.
7.What is the process for return or replacement of IDT71V416VL15BEGI8?
All IDT71V416VL15BEGI8 units undergo pre-shipment inspection (PSI). If there is an issue with IDT71V416VL15BEGI8, 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 IDT71V416VL15BEGI8 part is unused and in its original packaging.
Return procedure for IDT71V416VL15BEGI8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
IDT71V416VL15BEGI8 Tags
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