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Renesas IDT71V416VL12PHI
- Part No.:
- IDT71V416VL12PHI
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 44-TSOP (0.400", 10.16mm Width)
- Datasheet:
-
IDT71V416VL12PHI.pdf
- Description:
- IC SRAM 4MBIT PARALLEL 44TSOP II
- Quantity:
- Payment:
- Shipping:
Inventory:2,405
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Product details
Overview
IDT71V416VL12PHI from Integrated Device Technology is a 256K × 16-bit (4 Mbit), 3.3V CMOS asynchronous 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-level write control via BHE/BLE pins, and delivers 5 ns OE access for high-speed memory interfacing in embedded controllers and communication subsystems.
For engineers reviewing the IDT71V416VL12PHI datasheet, IDT71V416VL12PHI pinout, IDT71V416VL12PHI application, or IDT71V416VL12PHI equivalent, key selection criteria include its 12 ns read cycle time, dual-byte enable architecture, SOJ-44 package compatibility, low-power standby current (10 mA max), and industrial-grade reliability without refresh circuitry.
Technical Context
The IDT71V416VL12PHI implements fully static asynchronous logic with no clocks or refresh required. Its address decoding uses row/column architecture over A0–A17 inputs, supporting 256K word depth with 16-bit data width. All control signals-CS, OE, WE, BHE, BLE-are active-low and independently timed per JEDEC AC specifications.
It features separate high- and low-byte write enable paths, enabling partial-word writes without bus contention. Output drivers meet LVTTL voltage thresholds (VOH ≥ 2.4 V at –4 mA, VOL ≤ 0.4 V at 8 mA) under 3.0–3.6 V supply, with input leakage ≤ 5 µA and I/O capacitance ≤ 8 pF at 1 MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 256K × 16-bit (4,194,304-bit total); enables single-cycle 16-bit data transfers without multiplexing |
| Access Time (tAA) | 12 ns max; guarantees valid data on I/O pins within 12 ns of stable address and CS/OE assertion |
| Supply Voltage | 3.0–3.6 V; compatible with standard 3.3V logic rails and tolerant of ±0.3V variation |
| Standby Current (ISB1) | 10 mA max; enables ultra-low power retention during system sleep modes |
| Operating Temperature | –40°C to +85°C; qualified for industrial environments including base station control and motor drives |
| I/O Interface | LVTTL-compatible bidirectional bus; eliminates level-shifter requirements in 3.3V systems |
| Byte Enable Control | Dedicated BHE/BLE pins; allows independent 8-bit writes to upper/lower bytes without masking logic |
Pinout & Package
Package: 44-pin, 400-mil plastic SOJ (SO44-1), JEDEC-standard footprint with center VDD/VSS arrangement for noise reduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A17 | Address Inputs | 18-bit address bus supporting full 256K-word addressing; no address multiplexing required |
| CS | Chip Select | Active-low global enable; places device in standby (high-Z I/O) when deasserted |
| OE | Output Enable | Active-low read strobe; enables output drivers independently of CS for shared-bus timing control |
| WE | Write Enable | Active-low write strobe; initiates write cycle when CS and BHE/BLE are also asserted |
| BHE / BLE | Byte Enable | Active-low controls for high-byte (I/O8–I/O15) and low-byte (I/O0–I/O7); enables partial-word writes |
| I/O0–I/O15 | Bidirectional Data Bus | 16-bit LVTTL I/O; direction controlled by WE/CS/OE state; no external transceivers needed |
| VDD | Power Supply | +3.3V core supply; pin 13 and pin 28 (NC or VSS) support decoupling near center of package |
| VSS | Ground | Reference ground; pin 11 and pin 34 provide symmetric grounding for signal integrity |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC Center Power/Ground Pinout | Reduces simultaneous switching noise (SSN) by minimizing ground bounce and supply droop during high-speed I/O transitions |
| Equal Access & Cycle Times | 12 ns tAA = tRC ensures deterministic timing margins for both read and write cycles in synchronous bus designs |
| Low-Power Standby Mode | 10 mA ISB1 enables >90% power reduction vs. active mode (170 mA ICC), critical for thermally constrained modules |
| Single 3.3V Supply Operation | Eliminates need for dual-voltage regulators or level shifters, simplifying PCB power delivery and reducing BOM cost |
| Industrial Temperature Range | Validated operation from –40°C to +85°C supports deployment in uncontrolled environments like factory automation and outdoor telecom |
Applications
| Industrial PLC Memory Buffer | Telecom Line Card Data Cache |
|---|---|
Use Scenario: Real-time I/O mapping and register storage in programmable logic controllers requiring deterministic memory access under EMI-heavy factory conditions. IC Role / Device Role / Timing Role: Asynchronous SRAM buffer between ARM Cortex-M7 MCU and fieldbus interface ASIC; provides zero-wait-state 16-bit data path. Use Value: 12 ns tAA and industrial temp rating ensure cycle-accurate response to motion control interrupts without thermal derating or timing guardbands. |
Use Scenario: Packet header buffering and lookup table storage in DSLAM line cards where bursty traffic demands fast random-access memory with minimal latency jitter. IC Role / Device Role / Timing Role: Dual-port-capable SRAM used as shared data cache between DSP and FPGA; BHE/BLE enables concurrent header/payload updates. Use Value: Byte-enable architecture reduces bus arbitration overhead by 50% vs. full-word writes, improving packet processing throughput by up to 30%. |
| Medical Imaging Subsystem Frame Store | Avionics Display Controller Buffer |
Use Scenario: Temporary frame storage in portable ultrasound devices where radiation-hardened components are unnecessary but reliability and low power are mandatory. IC Role / Device Role / Timing Role: Offloads frame buffer management from SoC GPU; operates in low-power standby between scan lines to extend battery life. Use Value: 10 mA ISB1 standby current extends runtime by >2 hours per charge vs. standard SRAM alternatives, while 3.3V-only operation avoids voltage translation losses. |
Use Scenario: Graphics overlay buffer in certified cockpit display units requiring DO-254 compliance and guaranteed timing under vibration and thermal cycling. IC Role / Device Role / Timing Role: Dedicated SRAM for HUD symbology rendering; isolated from main system bus to prevent fault propagation. Use Value: JEDEC center-power pinout suppresses radiated emissions below CISPR-25 Class 3 limits, eliminating need for additional shielding in EMI-sensitive avionics enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed asynchronous SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY62148EV30LL-45ZSXIT | 4 Mbit (256K × 16), 45 ns access, 3.3V, TSOP-44; higher latency, lower standby current (1 µA) | Suitable for non-real-time logging or configuration storage where speed is secondary to ultra-low quiescent power | Select when system timing budget allows >3× slower access and deep-sleep current dominates power budget |
| AS6C4008-12PIN | 4 Mbit (256K × 16), 12 ns access, 3.3V, SOJ-44; identical speed and package, but commercial temp only (0°C to +70°C) | Applicable in office equipment or consumer gateways where industrial ambient is not required | Choose only if operating environment remains within 0°C–70°C and qualification to industrial standards is unnecessary |
Compared with CY62148EV30LL-45ZSXIT and AS6C4008-12PIN, the IDT71V416VL12PHI uniquely balances 12 ns performance, industrial temperature operation, and SOJ-44 compatibility-making it the sole option for real-time embedded systems needing guaranteed sub-15 ns access across extended thermal ranges without layout redesign.
Availability
IDT71V416VL12PHI is available at Aetrix Electronics and suitable for industrial PLCs, telecom line cards, medical imaging subsystems, and avionics display controllers requiring stable component supply and long-term obsolescence management.
Supply support for IDT71V416VL12PHI 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 IDT71V416VL12PHI belongs to IDT's legacy high-speed CMOS SRAM product line, designed specifically for deterministic, low-latency memory interfacing in industrial and communications infrastructure where asynchronous operation and JEDEC-compliant noise control are critical.
FAQ
What is the maximum operating frequency supported by the IDT71V416VL12PHI?
The IDT71V416VL12PHI is an asynchronous SRAM and does not use a clock signal, so it has no maximum operating frequency specification. Instead, its timing is defined by access and cycle times: tAA and tRC are both rated at 12 ns maximum. This means the device supports effective bus rates up to approximately 83 MHz in systems where address and control setup/hold times are met. The IDT71V416VL12PHI achieves this without refresh or synchronization overhead.
Does the IDT71V416VL12PHI require external pull-up or pull-down resistors on control pins?
No, the IDT71V416VL12PHI does not require external biasing on CS, OE, WE, BHE, or BLE pins. Its input thresholds are LVTTL-compatible (VIH ≥ 2.0 V, VIL ≤ 0.8 V), and internal input circuitry provides sufficient noise margin for direct connection to 3.3V logic drivers. External resistors are unnecessary unless system-level noise immunity requirements exceed the device's specified 0.4V noise margin.
Can the IDT71V416VL12PHI be used in place of the IDT71V416VS12PHI?
Yes, the IDT71V416VL12PHI can replace the IDT71V416VS12PHI in most designs because both share identical speed grade (12 ns), package (SOJ-44), pinout, and electrical interface. The key difference is temperature grade: VS denotes commercial (0°C to +70°C), while VL specifies industrial (–40°C to +85°C). The IDT71V416VL12PHI meets all VS12PHI specs and adds extended thermal qualification-no layout or firmware changes are needed.
What is the purpose of pin 28 on the IDT71V416VL12PHI SOJ package?
Pin 28 on the IDT71V416VL12PHI is designated NC (No Connect) but may optionally be bonded to VSS per manufacturer recommendation for enhanced grounding. The datasheet states "Pin 28 can either be a NC or connected to Vss", and connecting it to ground improves power integrity by adding a second VSS node adjacent to VDD pins 13 and 28. This configuration is recommended for noise-sensitive applications such as high-resolution data acquisition or RF subsystems.
How does the byte enable functionality work on the IDT71V416VL12PHI?
The IDT71V416VL12PHI uses two dedicated active-low inputs-BHE (pin 37) for high byte (I/O8–I/O15) and BLE (pin 36) for low byte (I/O0–I/O7)-to control write operations at 8-bit granularity. When only BHE is low and BLE is high, only the upper byte is written; when only BLE is low, only the lower byte is written. Both must be low for full 16-bit writes. This eliminates the need for external byte-mask logic and reduces bus turnaround time in mixed-data-width systems.
IDT71V416VL12PHI 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 44-TSOP II
IDT71V416VL12PHI FAQ
1.How can I place an order for IDT71V416VL12PHI through Aetrix?
Please submit a Request for Quotation (RFQ) for IDT71V416VL12PHI 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 IDT71V416VL12PHI reliable?
The price and inventory of IDT71V416VL12PHI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IDT71V416VL12PHI is usually 5 days.
3.What payment methods are accepted for IDT71V416VL12PHI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IDT71V416VL12PHI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IDT71V416VL12PHI?
IDT71V416VL12PHI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IDT71V416VL12PHI 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 IDT71V416VL12PHI?
For technical support, including IDT71V416VL12PHI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IDT71V416VL12PHI requirements.
6.How does Aetrix verify that IDT71V416VL12PHI is sourced from the original manufacturer or authorized distributors?
All IDT71V416VL12PHI 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 IDT71V416VL12PHI meets industry standards.
7.What is the process for return or replacement of IDT71V416VL12PHI?
All IDT71V416VL12PHI units undergo pre-shipment inspection (PSI). If there is an issue with IDT71V416VL12PHI, 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 IDT71V416VL12PHI part is unused and in its original packaging.
Return procedure for IDT71V416VL12PHI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
IDT71V416VL12PHI 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
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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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