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Renesas IDT71V416VL15Y
- Part No.:
- IDT71V416VL15Y
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 44-BSOJ (0.400", 10.16mm Width)
- Datasheet:
-
IDT71V416VL15Y.pdf
- Description:
- IC SRAM 4MBIT PARALLEL 44SOJ
- Quantity:
- Payment:
- Shipping:
Inventory:3,684
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Product details
Overview
IDT71V416VL15Y from Integrated Device Technology is a 256K × 16-bit (4 Mbit), 3.3V single-supply CMOS static RAM with 15 ns access time, JEDEC-standard center-power/ground pinout, and separate high- and low-byte enable for embedded memory interfacing in industrial temperature range (–40°C to +85°C) applications.
For engineers reviewing the IDT71V416VL15Y datasheet, IDT71V416VL15Y pinout, IDT71V416VL15Y application, or IDT71V416VL15Y equivalent, key selection criteria include byte-selectable 16-bit I/O, LVTTL-compatible bidirectional data lines, 44-pin SOJ/TSOP package compatibility, and low-power standby current of 10 mA (max) under full static conditions.
Technical Context
The IDT71V416VL15Y implements fully static asynchronous operation-no clocks or refresh required-and uses dual-byte enable (BHE/ BLE) to support 8-bit sub-word accesses within the 16-bit data bus. Its address decoding covers A0–A17 (18 address lines), enabling direct mapping to 256K word locations without external logic.
Timing is governed by independent control paths: chip select (CS), output enable (OE), write enable (WE), and byte enables each drive dedicated buffers feeding row/column decoders and I/O drivers. All inputs meet LVTTL voltage thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V), and outputs drive ±4 mA/±8 mA loads while maintaining VOL ≤ 0.4 V and VOH ≥ 2.4 V at VDD = 3.0 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 4,194,304 bits (256K × 16), supporting 16-bit microprocessor data buses without width expansion. |
| Access Time | 15 ns max (tAA, tACS), enabling interface with 66 MHz bus systems requiring ≤15 ns read setup. |
| Supply Voltage | 3.0–3.6 V, compatible with standard 3.3V LVTTL logic domains and eliminating level-shifting needs. |
| Standby Current | 10 mA max (ISB1), allowing low-power hold mode during processor sleep in battery-backed systems. |
| Byte Enable | Dedicated BHE/ BLE pins enable independent 8-bit writes to upper/lower bytes-critical for mixed-endian or partial-store operations. |
| Operating Temperature | –40°C to +85°C (industrial grade), qualified for deployment in automotive control units and industrial PLCs. |
| I/O Compatibility | LVTTL input thresholds and output drive strength ensure direct connection to FPGA I/O banks and microcontroller GPIOs. |
Pinout & Package
Package: 44-pin, 400-mil plastic SOJ (SO44-1) or TSOP Type II (SO44-2); pinout identical across both packages per datasheet Figure 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A17 | Address Inputs | 18-bit address bus accepting full 256K-word decode; no external address latching required. |
| CS | Chip Select | Active-low global enable; when high, places all outputs in high-Z and reduces ICC to ISB1 level. |
| OE | Output Enable | Active-low control for output drivers only; allows read data gating without affecting internal state. |
| WE | Write Enable | Active-low signal initiating write cycle; combined with CS and BHE/ BLE determines write timing window. |
| BHE, BLE | Byte Enable | Independent active-low controls for upper (I/O8–I/O15) and lower (I/O0–I/O7) data bytes. |
| I/O0–I/O15 | Bidirectional Data | 16-bit LVTTL-compliant I/O lines; direction controlled implicitly by WE/ OE states per truth table. |
| VDD, VSS | Power/Ground | JEDEC-standard center-pin placement (Pins 13/14, 29/30) minimizes simultaneous switching noise in dense PCB layouts. |
Key Features
| Feature | Design Value |
|---|---|
| Asynchronous Static Operation | No clock, no refresh-simplifies timing design and eliminates dynamic power overhead in always-on memory subsystems. |
| Center-Power Pinout | JEDEC-standard VDD/VSS placement reduces ground bounce and EMI in high-speed parallel bus routing. |
| Byte-Selectable Writes | Independent BHE/ BLE permits 8-bit updates without disturbing adjacent byte-essential for register-mapped peripherals. |
| Low-Power Standby | 10 mA max ISB1 enables >10-year retention in battery-backed SRAM applications (e.g., RTC memory). |
| LVTTL Interface Compliance | Guaranteed VIH/VIL and VOH/VOL margins ensure interoperability with legacy 3.3V microcontrollers and FPGAs. |
Applications
| Industrial PLC Memory Buffer | Automotive Engine Control Unit (ECU) |
|---|---|
Use Scenario: Storing real-time sensor calibration tables and fault logs in programmable logic controllers operating in factory-floor environments. IC Role / Device Role / Timing Role: Non-refreshing 16-bit SRAM providing deterministic 15 ns read/write latency for deterministic cyclic executive tasks. Use Value: Industrial temperature rating (–40°C to +85°C) and 10 mA standby current ensure reliable operation during extended unpowered intervals and thermal cycling. | Use Scenario: Holding transient engine parameter history (e.g., knock sensor waveforms, fuel trim corrections) in Tier-1 automotive ECUs. IC Role / Device Role / Timing Role: Byte-enabling (BHE/ BLE) allows selective update of 8-bit CAN message payload segments without overwriting adjacent diagnostic flags. Use Value: LVTTL compatibility and 3.3V supply eliminate level shifters, reducing BOM count and board area in space-constrained ECU modules. |
| Medical Imaging Frame Buffer | Avionics Data Logger |
Use Scenario: Temporary storage of digitized X-ray or ultrasound frames prior to compression and transmission in portable diagnostic devices. IC Role / Device Role / Timing Role: 256K × 16 organization matches 16-bit pixel depth pipelines; 15 ns access supports real-time frame capture at 30 fps. Use Value: 44-pin SOJ package enables high-density layout with minimal trace length-critical for minimizing signal integrity degradation on high-frequency video buses. | Use Scenario: Recording flight-critical telemetry (attitude, pressure, GPS timestamps) in certified avionics black boxes with power-fail hold-up capability. IC Role / Device Role / Timing Role: Low-power standby (10 mA max) extends backup battery life during extended ground downtime between flights. Use Value: Fully static architecture guarantees data retention without periodic refresh-even during brown-out events where system clocks stall. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed parallel SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Cypress CY7C1041DV33-15ZXC | Same density (256K × 16), 15 ns speed, but uses 48-pin TSOP II (not SOJ); higher ISB1 (25 mA vs. 10 mA). | Requires PCB redesign for 48-pin footprint; less suitable for legacy SOJ-based industrial designs. | Select if migrating to TSOP II for improved thermal performance and higher-volume procurement. |
| ISSI IS61LV25616AL-15TQLI | Identical 44-pin SOJ package and pinout; same 15 ns speed, but commercial temp only (0°C to +70°C), not industrial. | Not qualified for extended temperature deployments-unsuitable for under-hood automotive or outdoor industrial use. | Choose only for cost-sensitive commercial equipment where ambient temperature remains tightly controlled. |
Compared with CY7C1041DV33-15ZXC and IS61LV25616AL-15TQLI, the IDT71V416VL15Y uniquely combines industrial temperature rating, 44-pin SOJ compatibility, and ultra-low 10 mA standby current-making it optimal for legacy-replacement and thermally demanding embedded systems.
Availability
IDT71V416VL15Y is available at Aetrix Electronics and suitable for industrial PLC memory buffers, automotive ECU data logging, and medical imaging frame storage requiring stable component supply across extended product lifecycles.
Supply support for IDT71V416VL15Y 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 IDT71V416VL15Y belongs to IDT's legacy high-speed parallel SRAM product line, designed specifically for deterministic, low-latency memory interfacing in microprocessor- and FPGA-based embedded systems requiring industrial-grade reliability.
FAQ
What is the maximum operating temperature range for the IDT71V416VL15Y?
The IDT71V416VL15Y is rated for industrial temperature operation from –40°C to +85°C. This specification is guaranteed across all electrical parameters in the datasheet, including access time (15 ns), standby current (10 mA max), and I/O voltage thresholds. The industrial grade makes IDT71V416VL15Y suitable for under-hood automotive modules, factory automation controllers, and outdoor telecom infrastructure where ambient thermal stress exceeds commercial limits.
Does the IDT71V416VL15Y require a refresh circuit or clock signal?
No, the IDT71V416VL15Y is a fully static RAM and requires no refresh cycles or clock input. Its internal circuitry maintains data indefinitely as long as VDD is applied and CS remains asserted during active use. This eliminates timing-critical refresh overhead in microcontroller or FPGA designs-unlike DRAM-and simplifies system-level timing analysis. The IDT71V416VL15Y operates purely asynchronously using address, CS, WE, OE, and byte enable controls.
Can the IDT71V416VL15Y be used with a 5V microcontroller interface?
No, the IDT71V416VL15Y is strictly a 3.3V LVTTL device with absolute maximum input voltage of VDD + 0.5 V (≤ 4.1 V). Direct connection to 5V logic violates its VIN rating and risks permanent damage. Interfacing with 5V microcontrollers requires level translation-either discrete resistor-divider networks for slow signals or dedicated 3.3V-to-5V bidirectional translators such as TXS0108E. The IDT71V416VL15Y itself does not support mixed-voltage I/O.
What package options are available for the IDT71V416VL15Y?
The IDT71V416VL15Y is offered exclusively in 44-pin, 400-mil plastic SOJ (SO44-1) and 44-pin TSOP Type II (SO44-2) packages, both sharing identical pinouts per datasheet Figure 2. It is not available in the 48-ball BGA variant referenced for other members of the IDT71V416 family. The "Y" suffix in IDT71V416VL15Y explicitly denotes the SOJ/TSOP packaging option, confirming mechanical and thermal compatibility with legacy socketed or reflow-soldered 44-pin parallel memory footprints.
How does byte enable functionality work on the IDT71V416VL15Y?
The IDT71V416VL15Y provides two independent active-low byte enable signals: BHE (high byte enable, controlling I/O8–I/O15) and BLE (low byte enable, controlling I/O0–I/O7). During a write cycle, asserting only BHE enables writing to the upper 8 bits while preserving lower byte contents; asserting only BLE updates the lower byte. Both must be low for full 16-bit word writes. This functionality is implemented in hardware and requires no additional address decoding logic-making IDT71V416VL15Y ideal for register-file or peripheral buffer applications needing partial-word updates.
IDT71V416VL15Y Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 44-BSOJ (0.400", 10.16mm Width)
- Packaging:
- Tube
- 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:
- 44-SOJ
IDT71V416VL15Y FAQ
1.How can I place an order for IDT71V416VL15Y through Aetrix?
Please submit a Request for Quotation (RFQ) for IDT71V416VL15Y 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 IDT71V416VL15Y reliable?
The price and inventory of IDT71V416VL15Y are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IDT71V416VL15Y is usually 5 days.
3.What payment methods are accepted for IDT71V416VL15Y?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IDT71V416VL15Y transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IDT71V416VL15Y?
IDT71V416VL15Y orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IDT71V416VL15Y 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 IDT71V416VL15Y?
For technical support, including IDT71V416VL15Y datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IDT71V416VL15Y requirements.
6.How does Aetrix verify that IDT71V416VL15Y is sourced from the original manufacturer or authorized distributors?
All IDT71V416VL15Y 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 IDT71V416VL15Y meets industry standards.
7.What is the process for return or replacement of IDT71V416VL15Y?
All IDT71V416VL15Y units undergo pre-shipment inspection (PSI). If there is an issue with IDT71V416VL15Y, 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 IDT71V416VL15Y part is unused and in its original packaging.
Return procedure for IDT71V416VL15Y:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
IDT71V416VL15Y Tags
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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
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AT21CS01-STUM10-T
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24LC01BT-I/OT
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M24C02-FMC6TG
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AT24CS02-SSHM-T
Microchip Technology
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93LC46BT-I/OT
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AT24C04C-SSHM-T
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24LC01BT-I/SN
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24AA02UIDT-I/OT
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AT24C08C-STUM-T
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