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Renesas IDT71V416VS12PHI8
- Part No.:
- IDT71V416VS12PHI8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 44-TSOP (0.400", 10.16mm Width)
- Datasheet:
-
IDT71V416VS12PHI8.pdf
- Description:
- IC SRAM 4MBIT PARALLEL 44TSOP II
- Quantity:
- Payment:
- Shipping:
Inventory:3,182
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Product details
Overview
IDT71V416VS12PHI8 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 data buffering for network packet processors and FPGA-based control systems.
For engineers reviewing the IDT71V416VS12PHI8 datasheet, IDT71V416VS12PHI8 pinout, IDT71V416VS12PHI8 application, or IDT71V416VS12PHI8 equivalent, key selection criteria include 12 ns tAA/tRC timing, BHE/BLE byte enable control, SOJ-44 package compatibility, and industrial-grade reliability without refresh circuitry.
Technical Context
The IDT71V416VS12PHI8 implements fully static asynchronous memory architecture with no clocks or refresh required. Its dual-byte enable (BHE/BLE), independent output enable (OE), and chip select (CS) support flexible bus interfacing in 16-bit microprocessor and DSP systems.
It uses IDT's high-reliability CMOS process and features bidirectional LVTTL-compatible I/Os with guaranteed 5 ns OE access, 4 ns tCLZ, and 5 ns tCHZ - enabling deterministic timing in deterministic real-time embedded systems where cycle predictability is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 4,194,304 bits (256K × 16) - provides full 16-bit word storage without external data bus multiplexing |
| Access Time (tAA) | 12 ns max - ensures compatibility with 83 MHz CPU buses without wait states |
| Supply Voltage | 3.0 V to 3.6 V - matches standard 3.3 V logic rails and eliminates level-shifting requirements |
| Operating Temperature | –40°C to +85°C - qualified for industrial control, telecom line cards, and motor drive applications |
| I/O Interface | LVTTL-compatible - directly interfaces with 3.3 V FPGAs, microcontrollers, and ASICs without translation |
| Power Consumption | 180 mA dynamic (max), 20 mA full standby - enables low-noise operation in thermally constrained enclosures |
| Pinout Standard | JEDEC center-power/ground - reduces simultaneous switching noise (SSN) in dense PCB layouts |
Pinout & Package
Package: 44-pin, 400-mil plastic SOJ (SO44-1), lead-free and RoHS-compliant per ordering suffix "I8".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A17 | Address Inputs | 18-bit address bus supporting full 256K-word addressing; A17 enables full memory space decoding |
| CS | Chip Select | Active-low enable controlling device participation in memory map; enables bank selection in multi-SRAM systems |
| WE | Write Enable | Active-low signal initiating write cycles; combined with BHE/BLE determines byte vs. word write granularity |
| OE | Output Enable | Active-low control of output drivers; allows shared data bus usage without external tri-state logic |
| BHE, BLE | Byte Enable | Independent high/low byte controls - permits 8-bit peripheral access on 16-bit bus without software masking |
| I/O0–I/O15 | Bidirectional Data | 16-bit LVTTL I/O lines with 8 mA sink / 4 mA source capability - drives standard 3.3 V logic loads directly |
| VDD, VSS | Power/Ground | Center-located pins per JEDEC standard - minimizes ground bounce and improves signal integrity |
Key Features
| Feature | Design Value |
|---|---|
| Fully static asynchronous operation | No clock, no refresh, no hidden timing constraints - simplifies system timing budget and eliminates DRAM controller overhead |
| Byte-selectable write capability | BHE/BLE pins allow independent 8-bit writes to upper/lower bytes - reduces bus contention and improves firmware efficiency |
| Low-Z output enable with 5 ns latency | OE-controlled output activation enables fast burst reads in processor coherency protocols and DMA transfers |
| Industrial temperature qualification | Guaranteed 12 ns timing across –40°C to +85°C - supports deployment in uncooled industrial cabinets and outdoor base stations |
| SOJ-44 JEDEC-compliant footprint | Standardized 400-mil SOJ layout enables drop-in replacement and legacy board reuse without redesign |
Applications
| Network Packet Buffering | FPGA Configuration Storage |
|---|---|
Use Scenario: Storing ingress/egress packet headers and metadata in Layer 2/3 switches before forwarding decisions. IC Role / Device Role / Timing Role: High-bandwidth, low-latency SRAM buffer interfaced directly to MAC controller and switch fabric ASIC. Use Value: 12 ns tAA enables zero-wait-state operation at 83 MHz bus speed, reducing packet queuing delay by up to 20% versus 15 ns alternatives. | Use Scenario: Holding partial reconfiguration bitstreams for Xilinx or Intel FPGAs during dynamic function swapping. IC Role / Device Role / Timing Role: Non-volatile configuration cache accessed via parallel bus during partial reconfig cycles. Use Value: BHE/BLE byte enables allow selective loading of 8-bit subframes without full 16-bit bus transaction overhead. |
| Motor Drive Control Memory | DSP Real-Time Data Buffer |
Use Scenario: Storing PWM lookup tables, PID coefficients, and sensor history in servo amplifier modules. IC Role / Device Role / Timing Role: Deterministic-access memory mapped into DSP address space for interrupt-driven control loops. Use Value: Industrial temperature rating and 20 mA ISB1 ensure stable operation inside sealed motor drive enclosures at 75°C ambient. | Use Scenario: Acting as ping-pong buffer for audio or sensor sampling streams in TI C6000 or Analog Devices SHARC systems. IC Role / Device Role / Timing Role: Dual-port accessible memory region supporting concurrent DMA fill and CPU processing. Use Value: 5 ns tOLZ and tOHZ guarantee clean bus handoff between DMA and CPU, eliminating interlock delays in real-time pipelines. |
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 | 45 ns access, 3.3 V, 256K × 16, TSOP-44 - slower but higher noise immunity due to longer timing margins | Suitable for cost-sensitive industrial controllers where 12 ns timing is not required | Select when system bus operates below 22 MHz and thermal margin is prioritized over speed |
| AS6C4008-12IN | 12 ns access, 3.3 V, 256K × 16, SOJ-44 - identical speed grade but lower ICC (140 mA vs. 180 mA) and no BHE/BLE | Applicable where byte enable is unnecessary and power draw must be minimized | Choose when full 16-bit writes dominate and byte-level granularity is unused |
Compared with CY62167EV30LL-45ZSXI and AS6C4008-12IN, the IDT71V416VS12PHI8 uniquely delivers industrial-grade 12 ns performance with JEDEC-compliant SOJ-44 pinout and full byte-enable control - making it optimal for timing-critical, mixed-read/write embedded systems requiring deterministic latency.
Availability
IDT71V416VS12PHI8 is available at Aetrix Electronics and suitable for network infrastructure, industrial automation, and embedded DSP applications requiring stable component supply and long-term industrial temperature support.
Supply support for IDT71V416VS12PHI8 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, designs high-performance timing, memory, and interface solutions for communications, computing, and industrial markets.
The IDT71V416VS12PHI8 belongs to IDT's legacy high-speed parallel SRAM product line, engineered specifically for deterministic, low-latency data buffering in real-time embedded systems without refresh overhead.
FAQ
What is the operating temperature range specified for the IDT71V416VS12PHI8?
The IDT71V416VS12PHI8 is rated for industrial operation from –40°C to +85°C. This specification is guaranteed across all AC and DC parameters including 12 ns access time, 3.3 V supply tolerance, and leakage current limits. The "I" in the part number explicitly denotes industrial temperature qualification, and the "PHI8" suffix confirms lead-free SOJ-44 packaging compliant with this range.
Does the IDT71V416VS12PHI8 require a refresh circuit or clock signal?
No, the IDT71V416VS12PHI8 is a fully static RAM and requires neither a clock nor periodic refresh. Its internal latching circuitry retains data indefinitely as long as VDD remains within 3.0 V–3.6 V and CS is held high during standby. This eliminates refresh controller complexity and timing uncertainty - a key advantage over DRAM in hard real-time systems using the IDT71V416VS12PHI8.
What package type does the IDT71V416VS12PHI8 use, and is it RoHS-compliant?
The IDT71V416VS12PHI8 uses a 44-pin, 400-mil plastic SOJ (SO44-1) package. The "I8" suffix confirms it is lead-free and RoHS-compliant per EU Directive 2011/65/EU. Pin layout matches JEDEC standard MO-050AC, and the center-located VDD/VSS pins reduce ground bounce in high-speed layouts.
How does byte enable functionality work on the IDT71V416VS12PHI8?
The IDT71V416VS12PHI8 uses separate BHE (high byte enable) and BLE (low byte enable) inputs to control 8-bit write granularity. When only BHE is active, I/O8–I/O15 are written; when only BLE is active, I/O0–I/O7 are written; both active enables full 16-bit word write. This avoids software masking and reduces bus traffic - a core feature distinguishing the IDT71V416VS12PHI8 from simpler SRAMs.
Can the IDT71V416VS12PHI8 be used with 5 V logic systems?
No, the IDT71V416VS12PHI8 is strictly a 3.3 V device: VDD must be between 3.0 V and 3.6 V, and input voltages must stay within –0.3 V to VDD+0.3 V. Its LVTTL I/Os are not 5 V tolerant. Interfacing with 5 V systems requires level translation - the IDT71V416VS12PHI8 itself cannot operate at or interface directly to 5 V logic rails.
IDT71V416VS12PHI8 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 44-TSOP II
IDT71V416VS12PHI8 FAQ
1.How can I place an order for IDT71V416VS12PHI8 through Aetrix?
Please submit a Request for Quotation (RFQ) for IDT71V416VS12PHI8 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 IDT71V416VS12PHI8 reliable?
The price and inventory of IDT71V416VS12PHI8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IDT71V416VS12PHI8 is usually 5 days.
3.What payment methods are accepted for IDT71V416VS12PHI8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IDT71V416VS12PHI8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IDT71V416VS12PHI8?
IDT71V416VS12PHI8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IDT71V416VS12PHI8 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 IDT71V416VS12PHI8?
For technical support, including IDT71V416VS12PHI8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IDT71V416VS12PHI8 requirements.
6.How does Aetrix verify that IDT71V416VS12PHI8 is sourced from the original manufacturer or authorized distributors?
All IDT71V416VS12PHI8 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 IDT71V416VS12PHI8 meets industry standards.
7.What is the process for return or replacement of IDT71V416VS12PHI8?
All IDT71V416VS12PHI8 units undergo pre-shipment inspection (PSI). If there is an issue with IDT71V416VS12PHI8, 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 IDT71V416VS12PHI8 part is unused and in its original packaging.
Return procedure for IDT71V416VS12PHI8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
IDT71V416VS12PHI8 Tags
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M24C02-WMN6TP
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AT24C02C-XHM-T
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AT21CS01-STUM10-T
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M24C02-FMC6TG
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AT24CS02-SSHM-T
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