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Renesas IDT71V416VL12PH
- Part No.:
- IDT71V416VL12PH
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 44-TSOP (0.400", 10.16mm Width)
- Datasheet:
-
IDT71V416VL12PH.pdf
- Description:
- IC SRAM 4MBIT PARALLEL 44TSOP II
- Quantity:
- Payment:
- Shipping:
Inventory:2,658
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Product details
Overview
IDT71V416VL12PH from Integrated Device Technology is a 4-Mbit (256K × 16) high-speed CMOS static RAM with 12 ns access time, single 3.3 V supply operation, LVTTL-compatible I/O, and JEDEC-standard center-power/ground pinout for noise reduction. It supports byte-wide and word-wide read/write operations in industrial temperature range (–40°C to +85°C) and is used in real-time embedded control buffers, FPGA configuration memory, and legacy bus-based data acquisition systems.
For engineers reviewing the IDT71V416VL12PH datasheet, IDT71V416VL12PH pinout, IDT71V416VL12PH application, or IDT71V416VL12PH equivalent, key selection criteria include 12 ns tAA/tRC timing compliance, SOJ-44 package mechanical compatibility, industrial-grade thermal stability, and bidirectional byte-enable control for 8-bit subsystem interfacing.
Technical Context
The IDT71V416VL12PH implements fully static asynchronous circuitry-no clocks or refresh required-and uses dual byte enable (BHE/BLE) inputs to independently gate high- and low-byte data paths during read/write cycles. Its address decoding supports 18-bit addressing (A0–A17), enabling full 256K-word access without external logic.
It features separate chip select (CS), output enable (OE), and write enable (WE) controls, allowing precise timing isolation between memory selection, output driver activation, and write strobing. 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) - supports 16-bit parallel bus interfaces without data multiplexing |
| Access Time (tAA) | 12 ns max - guarantees deterministic read latency for real-time control loops with ≤83 MHz bus timing |
| Supply Voltage | 3.0 V to 3.6 V - compatible with 3.3 V system rails and tolerant of ±10% regulation variation |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments including motor drives and PLC backplanes |
| I/O Interface | LVTTL-compatible bidirectional I/O0–I/O15 - interoperable with 3.3 V FPGAs, microcontrollers, and ASICs without level shifters |
| Power Consumption | 180 mA dynamic ICC (max), 10 mA ISB1 standby - enables low-power hold modes during processor sleep states |
| Package | 44-pin, 400-mil plastic SOJ (SO44-1) - industry-standard footprint with through-hole or surface-mount assembly options |
Pinout & Package
Package: 44-pin, 400-mil plastic SOJ (SO44-1), JEDEC-standard center-power/ground layout for reduced simultaneous switching noise.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A17 | Address Inputs | 18-bit address bus supporting full 256K-word decode; no external address latching required |
| CS | Chip Select | Active-low enable controlling overall device selection; must be stable before address setup (tAS = 0 ns) |
| OE | Output Enable | Active-low control for output drivers; tOE = 6 ns max ensures fast read turnaround in burst transfers |
| WE | Write Enable | Active-low write strobe; tWP = 8 ns min defines minimum pulse width for reliable data capture |
| BHE / BLE | Byte Enable | Independent high-/low-byte gating; enables 8-bit sub-word writes without disturbing adjacent bytes |
| I/O0–I/O7 / I/O8–I/O15 | Bidirectional Data | 16-bit LVTTL I/O bus; high-impedance state when CS, OE, BHE, or BLE inactive |
| VDD | Power Supply | 3.3 V core supply; pins 13 and 32 provide distributed power delivery per JEDEC center-GND/power layout |
| VSS | Ground | Ground reference; pins 12 and 31 placed adjacent to VDD for low-inductance return path |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC Center Power/Ground Pinout | Reduces simultaneous switching noise by symmetrically distributing VDD/VSS across package centerline |
| Dual Byte Enable Control | Enables independent 8-bit writes to upper/lower bytes without read-modify-write overhead |
| 5 ns Output Enable Propagation | Supports sub-20 ns read cycle times when combined with 12 ns tAA, critical for high-throughput DMA |
| Full Static Operation | No clocks, no refresh, no wait states - simplifies timing design in deterministic real-time systems |
| Industrial Temperature Range | Validated operation from –40°C to +85°C ensures reliability in uncontrolled industrial enclosures |
Applications
| Industrial PLC Data Buffer | FPGA Configuration Memory |
|---|---|
Use Scenario: Storing real-time I/O scan data and ladder logic state variables in programmable logic controllers with 16-bit local bus architecture. IC Role / Device Role / Timing Role: Asynchronous SRAM buffer providing zero-wait-state read/write access to CPU and DMA engines during cyclic scan execution. Use Value: 12 ns tAA and tRC ensure deterministic response within 100 µs scan cycles, while industrial temp rating sustains operation near motor drives. |
Use Scenario: Holding configuration bitstreams for Xilinx Spartan or Intel MAX II FPGAs during power-up and reconfiguration sequences. IC Role / Device Role / Timing Role: Non-volatile configuration storage interface delivering parallel bitstream data at 83 MHz-equivalent throughput via 16-bit bus. Use Value: LVTTL compatibility eliminates level-shifting components; SOJ-44 footprint matches legacy FPGA carrier board layouts. |
| Legacy Bus-Based DAQ | Real-Time Motion Controller Buffer |
Use Scenario: Acting as sample FIFO and calibration coefficient storage in ISA/PCI-based data acquisition cards sampling at 1 MS/s. IC Role / Device Role / Timing Role: High-speed memory mapped into host I/O space, accessed via 16-bit ISA bus with CS/OE-controlled timing windows. Use Value: JEDEC center-pinout minimizes ground bounce on shared bus segments; 10–15 ns speed grades support multiple legacy timing modes. |
Use Scenario: Caching trajectory interpolation tables and encoder feedback history in closed-loop servo drives with DSP-based motion engines. IC Role / Device Role / Timing Role: Low-latency scratchpad memory enabling sub-microsecond access to motion profile parameters during real-time interrupt service. Use Value: 10 mA ISB1 standby current extends hold time during power-loss events; byte-enable allows efficient 16-bit parameter updates. |
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 |
|---|---|---|---|
| CY62167EV30LL-45ZSXI | 512K × 16 density, 45 ns access, 3.3 V, TSOP-II package - higher capacity but slower timing | Used where longer access latency is acceptable and larger buffer depth is needed (e.g., video frame buffering) | Select when >256K depth is required and 45 ns tAA satisfies system timing budget |
| IS61LV25616AL-12MLI | 256K × 16, 12 ns access, 3.3 V, SOJ-44 - identical timing and pinout, but ISSI-manufactured with different DC leakage specs | Drop-in replacement in existing IDT71V416VL12PH designs requiring second-source qualification | Choose for supply chain diversification without PCB or firmware changes |
Compared with CY62167EV30LL-45ZSXI and IS61LV25616AL-12MLI, the IDT71V416VL12PH delivers tighter industrial-temp AC timing margins and lower dynamic ICC at 12 ns speed, making it preferable for deterministic real-time systems where latency consistency matters more than raw capacity or multi-source availability.
Availability
IDT71V416VL12PH is available at Aetrix Electronics and suitable for industrial PLC data buffering, FPGA configuration memory, and legacy bus-based data acquisition requiring stable component supply over extended production lifecycles.
Supply support for IDT71V416VL12PH 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 sensor signal conditioning ICs for communications, computing, and industrial markets.
The IDT71V416VL12PH belongs to IDT's legacy high-speed parallel SRAM product line, designed specifically for deterministic, low-latency memory interfacing in industrial control, test equipment, and FPGA-based reconfigurable systems.
FAQ
What is the operating temperature range for the IDT71V416VL12PH?
The IDT71V416VL12PH is rated for industrial operation from –40°C to +85°C. This specification is validated across all AC and DC parameters in the datasheet, including tAA, tRC, ICC, and ISB1. The "I" suffix in the part number explicitly denotes industrial temperature grade, distinguishing it from commercial-grade variants like IDT71V416VS12PH.
Does the IDT71V416VL12PH require a refresh circuit or clock signal?
No, the IDT71V416VL12PH is a fully static RAM and requires neither refresh circuitry nor clock signals. Its internal design uses static CMOS latches for data retention, enabling true asynchronous operation with zero wait states. This eliminates timing complexity in microcontroller- or DSP-based systems where deterministic access is critical.
What package type does the IDT71V416VL12PH use, and is it lead-free?
The IDT71V416VL12PH uses a 44-pin, 400-mil plastic SOJ (SO44-1) package. Per the ordering information in the datasheet, the "PH" suffix indicates lead-free (Pb-free) construction compliant with RoHS Directive 2011/65/EU. The package features center-placed VDD and VSS pins to minimize noise coupling in high-density PCB layouts.
Can the IDT71V416VL12PH be used with 5 V logic systems?
No, the IDT71V416VL12PH is strictly a 3.3 V device with LVTTL-compatible I/O. Its absolute maximum input voltage is VDD + 0.5 V (≤ 4.1 V), and VIH threshold is specified at ≥ 2.0 V-not 5 V tolerant. Interfacing with 5 V systems requires level translation; direct connection risks latch-up or parametric failure.
How does byte enable functionality work on the IDT71V416VL12PH?
The IDT71V416VL12PH uses two dedicated inputs-BHE (high byte enable) and BLE (low byte enable)-to selectively activate I/O8–I/O15 or I/O0–I/O7 during read/write cycles. When only one is asserted low, the corresponding 8-bit byte transfers data while the other remains in high-impedance state, enabling efficient 8-bit peripheral interfacing without full-word read-modify-write sequences.
IDT71V416VL12PH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 44-TSOP (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:
- 12ns
- Access Time:
- 12 ns
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 44-TSOP II
IDT71V416VL12PH FAQ
1.How can I place an order for IDT71V416VL12PH through Aetrix?
Please submit a Request for Quotation (RFQ) for IDT71V416VL12PH 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 IDT71V416VL12PH reliable?
The price and inventory of IDT71V416VL12PH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IDT71V416VL12PH is usually 5 days.
3.What payment methods are accepted for IDT71V416VL12PH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IDT71V416VL12PH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IDT71V416VL12PH?
IDT71V416VL12PH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IDT71V416VL12PH 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 IDT71V416VL12PH?
For technical support, including IDT71V416VL12PH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IDT71V416VL12PH requirements.
6.How does Aetrix verify that IDT71V416VL12PH is sourced from the original manufacturer or authorized distributors?
All IDT71V416VL12PH 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 IDT71V416VL12PH meets industry standards.
7.What is the process for return or replacement of IDT71V416VL12PH?
All IDT71V416VL12PH units undergo pre-shipment inspection (PSI). If there is an issue with IDT71V416VL12PH, 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 IDT71V416VL12PH part is unused and in its original packaging.
Return procedure for IDT71V416VL12PH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
IDT71V416VL12PH Tags
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