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Renesas IDT71V416VS12PHG8
- Part No.:
- IDT71V416VS12PHG8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 44-TSOP (0.400", 10.16mm Width)
- Datasheet:
-
IDT71V416VS12PHG8.pdf
- Description:
- IC SRAM 4MBIT PARALLEL 44TSOP II
- Quantity:
- Payment:
- Shipping:
Inventory:1,798
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Product details
Overview
IDT71V416VS12PHG8 from Integrated Device Technology is a 256K × 16-bit (4 Mbit), 3.3V CMOS static RAM with 12 ns access time, JEDEC-compliant center power/ground pinout, and LVTTL-compatible bidirectional I/O. It operates across industrial temperature range (–40°C to +85°C), supports byte-wide or full-word read/write via separate BHE/BLE controls, and targets high-speed buffering in telecom line cards and industrial PLC memory modules.
For engineers reviewing the IDT71V416VS12PHG8 datasheet, IDT71V416VS12PHG8 pinout, IDT71V416VS12PHG8 application, or IDT71V416VS12PHG8 equivalent, key selection criteria include its 12 ns tAA/tRC timing, SOJ-44 package compatibility, industrial-grade reliability, and dual-byte enable architecture for flexible data path control in legacy 16-bit bus systems.
Technical Context
The IDT71V416VS12PHG8 implements fully static asynchronous circuitry-no clocks or refresh required-and uses IDT's high-reliability CMOS process optimized for low-noise operation. Its address decoding, sense amplifiers, and write drivers are integrated into a single die with independent high- and low-byte output buffers.
Control logic supports three distinct write modes: full-word (WE low with both BHE and BLE low), high-byte only (BHE low, BLE high), and low-byte only (BLE low, BHE high); OE enables output tri-state independently of CS/WE state, enabling multiplexed bus sharing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 256K × 16-bit (4,194,304 bits) - supports 16-bit parallel data bus without external width expansion |
| Access Time (tAA) | 12 ns max - guarantees valid data at I/O pins within 12 ns after address stabilization, critical for 83 MHz bus timing |
| Cycle Time (tRC) | 12 ns max - defines minimum interval between successive read/write cycles, enabling sustained 83 MHz throughput |
| Supply Voltage | 3.0 V to 3.6 V - compatible with standard 3.3V LVTTL logic rails; no level-shifting needed |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments including factory automation and base station equipment |
| Package | 44-pin, 400-mil SOJ (SO44-1) - surface-mountable, JEDEC-standard footprint with center VDD/VSS for noise reduction |
| Dynamic Current (ICC) | 180 mA max at fMAX - determines power rail sizing and thermal design for continuous burst access |
Pinout & Package
44-pin, 400-mil plastic SOJ (SO44-1) package with JEDEC center power/ground pinout for reduced switching noise. Pin 28 is NC or optionally tied to VSS per design flexibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A17 | Address Inputs | 18-bit address bus supporting full 256K-word addressing; A0–A15 used for word selection, A16/A17 for bank selection in expanded systems |
| CS | Chip Select | Active-low enable; device enters standby (ISB ≤ 60 mA) when high, eliminating need for external gating logic |
| OE | Output Enable | Active-low; enables output drivers independently of CS/WE, allowing shared-bus arbitration without bus contention |
| WE | Write Enable | Active-low; initiates write cycle when low with CS low; controls direction of I/O pins during write operations |
| BHE / BLE | Byte Enable | Active-low high/low byte selects; enables partial writes to upper or lower 8 bits without disturbing other byte |
| I/O0–I/O15 | Bidirectional Data | LVTTL-compatible I/O; tristated when CS high or OE high, supporting direct connection to 16-bit microprocessor data buses |
| VDD / VSS | Power / Ground | Center-placed VDD (pin 12/33) and VSS (pin 11/32) reduce simultaneous switching noise in high-frequency operation |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC Center Power/Ground Pinout | Reduces ground bounce and supply noise by symmetrically distributing VDD/VSS pins near center of package |
| Dual Byte Enable (BHE/BLE) | Enables selective 8-bit writes to upper or lower byte without requiring external byte-lane logic or glue logic |
| 5 ns Output Enable Propagation | Guarantees I/O transition to valid state within 5 ns of OE assertion, minimizing bus turnaround latency in multiprocessor systems |
| Full Standby Current (ISB1) | 20 mA max at VDD = 3.6 V - enables ultra-low-power retention mode during system sleep states |
| LVTTL-Compatible I/O | Direct interface to 3.3V microcontrollers, FPGAs, and DSPs without level translators or series resistors |
Applications
| Telecom Line Card Buffering | Industrial PLC Data Memory |
|---|---|
Use Scenario: Storing real-time packet headers and protocol state variables in TDM/E1 interface modules. IC Role / Device Role / Timing Role: High-speed, low-latency SRAM buffer interfacing directly to TI C6000 DSP parallel EMIF bus. Use Value: 12 ns tAA ensures header data is available before next timeslot boundary, preventing frame misalignment in synchronous transport networks. | Use Scenario: Holding ladder logic scan results and I/O image tables in modular programmable logic controllers. IC Role / Device Role / Timing Role: Non-refreshing memory storage for deterministic scan-cycle execution in safety-critical control loops. Use Value: Industrial temperature rating (–40°C to +85°C) and 20 mA ISB1 support unattended operation in cabinet-mounted PLCs without forced cooling. |
| Medical Imaging Frame Store | Avionics Display Controller Cache |
Use Scenario: Temporary storage of digitized ultrasound scan lines prior to FPGA-based beamforming. IC Role / Device Role / Timing Role: Burst-access frame buffer synchronized to ADC sampling clock and FPGA DMA controller. Use Value: 12 ns tRC enables back-to-back reads at >83 MHz, matching 10-bit, 80 MSPS ADC output rates without pipeline stalls. | Use Scenario: Caching rendered GUI elements and font glyphs in ARINC-661-compliant cockpit display units. IC Role / Device Role / Timing Role: Low-noise, radiation-tolerant SRAM for deterministic rendering pipeline with strict DO-254 timing constraints. Use Value: Center VDD/VSS pinout minimizes EMI-induced bit flips in high-density avionics PCB layouts near RF transceivers. |
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 |
|---|---|---|---|
| CY62148EV30LL-45ZAXI | 45 ns access time, 5V tolerant I/O, 44-pin TSOP-II package | Slower timing; suited for legacy 5V systems with relaxed timing budgets | Select when migrating from older 5V designs where voltage compatibility outweighs speed requirements |
| AS6C4008-12PIN | 12 ns access, 3.3V-only, 44-pin SOJ, but lacks BHE/BLE byte enables | Requires external logic for byte-select writes; no native high/low byte control | Choose only if byte-enable functionality is unused and board layout rework is unacceptable |
Compared with CY62148EV30LL-45ZAXI and AS6C4008-12PIN, the IDT71V416VS12PHG8 uniquely delivers industrial-grade 12 ns performance with integrated BHE/BLE control and JEDEC-optimized SOJ packaging-enabling drop-in replacement in timing-critical 16-bit bus systems without redesigning byte-lane logic or power distribution.
Availability
IDT71V416VS12PHG8 is available at Aetrix Electronics and suitable for telecom infrastructure, industrial automation, and medical imaging systems requiring stable component supply, long-term obsolescence management, and guaranteed industrial temperature compliance.
Supply support for IDT71V416VS12PHG8 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.
The IDT71V416VS12PHG8 belongs to IDT's legacy high-speed parallel SRAM product line, designed specifically for deterministic, low-latency data buffering in industrial and telecom equipment where asynchronous operation and byte-select capability are essential.
FAQ
What is the operating temperature range for IDT71V416VS12PHG8?
IDT71V416VS12PHG8 is rated for industrial temperature operation from –40°C to +85°C. This specification is validated per the manufacturer's recommended DC operating conditions and AC timing tables, ensuring reliable read/write functionality across the full range without derating. The IDT71V416VS12PHG8 maintains its 12 ns tAA and tRC specifications under these conditions, making it suitable for deployment in uncontrolled ambient environments such as factory floors or outdoor telecom cabinets.
Does IDT71V416VS12PHG8 require a clock or refresh circuit?
No, IDT71V416VS12PHG8 uses fully static asynchronous circuitry and requires no clock signal or periodic refresh cycles. Its internal memory array retains data indefinitely as long as VDD remains within 3.0 V to 3.6 V and ambient temperature stays within –40°C to +85°C. This eliminates timing-critical refresh overhead in microcontroller or FPGA-based systems, simplifying firmware and reducing system-level jitter-key for real-time control applications using the IDT71V416VS12PHG8.
What package type does IDT71V416VS12PHG8 use?
IDT71V416VS12PHG8 uses a 44-pin, 400-mil plastic SOJ (SO44-1) package with JEDEC-standard center power/ground pinout. Pin 28 is designated NC but may be connected to VSS for enhanced grounding. This package is lead-free (G suffix) and RoHS-compliant, and its mechanical dimensions match industry-standard SOJ footprints for drop-in PCB assembly without layout modification.
Can IDT71V416VS12PHG8 perform byte-select writes?
Yes, IDT71V416VS12PHG8 supports true byte-select writes via dedicated BHE (high byte enable) and BLE (low byte enable) inputs. When BHE is low and BLE is high, only I/O8–I/O15 are written; when BLE is low and BHE is high, only I/O0–I/O7 are written. Both signals must be low for full 16-bit word writes. This capability is electrically verified in the truth table and AC timing diagrams of the official datasheet, eliminating need for external byte-lane gating logic when using the IDT71V416VS12PHG8.
What is the maximum dynamic current consumption of IDT71V416VS12PHG8?
IDT71V416VS12PHG8 draws up to 180 mA of dynamic operating current (ICC) under worst-case conditions: VDD = 3.6 V, industrial temperature, and maximum frequency operation (fMAX ≈ 83 MHz). This value is specified in the DC Electrical Characteristics table for the "71V416S/L12" speed grade and is measured with all outputs open and CS active. Proper decoupling (≥10 µF bulk + 0.1 µF ceramic per VDD pin) is required to maintain stable 3.3V rail regulation during peak current transients in the IDT71V416VS12PHG8.
IDT71V416VS12PHG8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 44-TSOP (0.400", 10.16mm Width)
- 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:
- 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
IDT71V416VS12PHG8 FAQ
1.How can I place an order for IDT71V416VS12PHG8 through Aetrix?
Please submit a Request for Quotation (RFQ) for IDT71V416VS12PHG8 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 IDT71V416VS12PHG8 reliable?
The price and inventory of IDT71V416VS12PHG8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IDT71V416VS12PHG8 is usually 5 days.
3.What payment methods are accepted for IDT71V416VS12PHG8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IDT71V416VS12PHG8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IDT71V416VS12PHG8?
IDT71V416VS12PHG8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IDT71V416VS12PHG8 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 IDT71V416VS12PHG8?
For technical support, including IDT71V416VS12PHG8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IDT71V416VS12PHG8 requirements.
6.How does Aetrix verify that IDT71V416VS12PHG8 is sourced from the original manufacturer or authorized distributors?
All IDT71V416VS12PHG8 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 IDT71V416VS12PHG8 meets industry standards.
7.What is the process for return or replacement of IDT71V416VS12PHG8?
All IDT71V416VS12PHG8 units undergo pre-shipment inspection (PSI). If there is an issue with IDT71V416VS12PHG8, 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 IDT71V416VS12PHG8 part is unused and in its original packaging.
Return procedure for IDT71V416VS12PHG8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
IDT71V416VS12PHG8 Tags
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