Renesas IDT71V416VS10PHG8
- Part No.:
- IDT71V416VS10PHG8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 44-TSOP (0.400", 10.16mm Width)
- Datasheet:
-
IDT71V416VS10PHG8.pdf
- Description:
- IC SRAM 4MBIT PARALLEL 44TSOP II
- Quantity:
- Payment:

- Shipping:

Inventory:4,469
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Product details
Overview
IDT71V416VS10PHG8 from Integrated Device Technology is a 4-Mbit (256K × 16) high-speed CMOS static RAM with 10 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 IDT71V416VS10PHG8 datasheet, IDT71V416VS10PHG8 pinout, IDT71V416VS10PHG8 application, or IDT71V416VS10PHG8 equivalent, key selection criteria include 10 ns read cycle time, dual byte enable (BHE/BLE), SOJ-44 package compatibility, and industrial-grade reliability under sustained asynchronous operation.
Technical Context
The IDT71V416VS10PHG8 implements fully static asynchronous circuitry-no clocks or refresh required-and uses dedicated OE, CS, WE, BHE, and BLE control inputs to manage bidirectional 16-bit I/O with independent high- and low-byte access. Its architecture supports three distinct write modes: CS-controlled, WE-controlled, and byte-enable-controlled timing, each with defined setup/hold and pulse-width requirements.
It features JEDEC-compliant pinout with VDD/VSS on pins 12/11 and 33/32, enabling reduced simultaneous switching noise. Input and I/O capacitance are characterized at 7 pF (CIN) and 8 pF (CI/O), supporting stable signal integrity up to 100 MHz effective bus operation under specified AC load conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 4,194,304 bits (256K × 16 organization) |
| Access Time (tAA) | 10 ns maximum - guarantees sub-100 MHz random read latency |
| Supply Voltage | 3.0 V to 3.6 V - compatible with 3.3 V system rails without level shifting |
| I/O Interface | LVTTL-compatible - direct interfacing with 3.3 V FPGAs, microcontrollers, and ASICs |
| Operating Temperature | –40°C to +85°C - qualified for industrial embedded control and telecom infrastructure |
| Power Consumption | 200 mA max ICC (dynamic), 20 mA max ISB1 (full standby) - enables low-idle-power system design |
| Package | 44-pin, 400-mil plastic SOJ (SO44-1) - surface-mount compatible with standard reflow profiles |
Pinout & Package
Package: 44-pin, 400-mil plastic SOJ (SO44-1), JEDEC-standard center power/ground layout for noise suppression. Pin 28 is NC or optionally tied to VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A17 | Address Inputs | 18-bit address bus for full 256K-word addressing; no internal multiplexing |
| CS | Chip Select | Active-low enable for device selection; controls entry into standby when high |
| OE | Output Enable | Active-low control of output drivers; enables fast 5 ns output valid timing |
| WE | Write Enable | Active-low write strobe; determines read vs. write mode when CS is active |
| BHE / BLE | Byte Enable | Independent high- and low-byte gating for 8-bit sub-word writes without masking logic |
| I/O0–I/O15 | Bidirectional Data | 16-bit LVTTL I/O bus; tristated when CS, OE, BHE, or BLE inactive |
| VDD / VSS | Power / Ground | Dual VDD (pins 12, 33) and VSS (pins 11, 32) reduce ground bounce and supply noise |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC Center Power/Ground Pinout | Minimizes simultaneous switching noise by interleaving VDD/VSS near I/O banks |
| Independent Byte Enables (BHE/BLE) | Enables 8-bit writes to upper or lower byte without external byte-lane logic |
| 5 ns Output Enable Propagation | Supports tight timing margins in high-speed burst reads with external address sequencing |
| Full Standby Current ≤20 mA | Reduces system-level quiescent power in always-on industrial controllers |
| No Clock or Refresh Required | Eliminates timing-critical clock distribution and refresh overhead in FPGA co-processor designs |
Applications
| Network Packet Buffering | FPGA Co-Processor Cache |
|---|---|
Use Scenario: Storing inbound/outbound Ethernet frames in Layer 2/3 switches before forwarding decisions. IC Role / Device Role / Timing Role: Asynchronous 16-bit SRAM buffer between MAC controller and traffic manager ASIC. Use Value: 10 ns tAA enables line-rate frame buffering at 1 Gbps with zero wait-state CPU access. | Use Scenario: Providing local instruction/data memory for soft-core microblaze or Nios II running on Xilinx/Intel FPGAs. IC Role / Device Role / Timing Role: Off-chip program/data RAM with byte-select capability for mixed 8/16-bit firmware execution. Use Value: BHE/BLE support eliminates need for external byte-mask logic, reducing PCB layer count. |
| Industrial PLC Data Logging | Medical Imaging Frame Store |
Use Scenario: Capturing sensor telemetry (temperature, pressure, position) at 10 kHz sampling rate across multiple channels. IC Role / Device Role / Timing Role: High-reliability, non-refreshing memory for deterministic cyclic data capture in safety-critical controllers. Use Value: –40°C to +85°C rating and ≤20 mA ISB1 ensure continuous logging during thermal cycling in factory environments. | Use Scenario: Temporary storage of uncompressed 12-bit grayscale image tiles (1024×768) during ultrasound or endoscope preprocessing. IC Role / Device Role / Timing Role: Low-latency frame buffer interfaced directly to image sensor controller and DSP pipeline. Use Value: 16-bit bus width and 10 ns access allow full pixel-line transfers within 1 µs, meeting real-time display deadlines. |
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 |
|---|---|---|---|
| CY62167EV30LL-10ZSXI | 16 Mbit (1M × 16), 10 ns, same SOJ-44 package, but requires 2.2–3.6 V supply | Higher density suitable for larger buffers; wider voltage tolerance eases legacy 2.5 V system integration | Select when >4 Mbit capacity or multi-voltage compatibility is required; verify VDD min/max against host rail |
| AS6C4008-10PCN | 4 Mbit (256K × 16), 10 ns, 44-pin TSOP-II package (not SOJ), 3.3 V only, higher ISB (35 mA) | Same density/speed but different footprint; TSOP-II offers better thermal dissipation in dense layouts | Select for space-constrained boards where TSOP-II mounting is preferred; confirm PCB land pattern compatibility |
Compared with CY62167EV30LL-10ZSXI and AS6C4008-10PCN, the IDT71V416VS10PHG8 provides optimal balance of industrial temperature support, SOJ-44 mechanical fit, and lowest full-standby current (20 mA), making it preferred for thermally constrained, long-life embedded systems requiring minimal power in sleep states.
Availability
IDT71V416VS10PHG8 is available at Aetrix Electronics and suitable for industrial PLCs, medical imaging subsystems, and network edge devices requiring stable component supply, long-term lifecycle assurance, and guaranteed SOJ-44 packaging.
Supply support for IDT71V416VS10PHG8 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 high-performance interconnect solutions.
The IDT71V416VS10PHG8 belongs to IDT's legacy 3.3 V high-speed SRAM product line, designed specifically for industrial and telecom applications demanding deterministic asynchronous access, low standby power, and robust JEDEC-compliant packaging.
FAQ
What is the operating temperature range for IDT71V416VS10PHG8?
IDT71V416VS10PHG8 is rated for industrial temperature operation from –40°C to +85°C. This specification is confirmed in the Absolute Maximum Ratings and Recommended Operating Conditions tables of the official datasheet (DSC-6478/00, October 2008). The "I" suffix in the ordering code explicitly denotes industrial grade, distinguishing it from commercial-grade variants.
Does IDT71V416VS10PHG8 require a clock or refresh circuit?
No, IDT71V416VS10PHG8 uses fully static CMOS memory cells and asynchronous control logic. It operates without any clock input or periodic refresh cycles - a core feature confirmed in the Description section and Functional Block Diagram of the datasheet. This eliminates timing-critical clock routing and simplifies system-level power management.
What package type does IDT71V416VS10PHG8 use?
IDT71V416VS10PHG8 uses a 44-pin, 400-mil plastic SOJ (Small Outline J-lead) package, designated SO44-1 in the datasheet. The "PH" in the part number explicitly encodes this SOJ configuration, and pin diagrams, dimensions, and capacitance data are provided exclusively for SOJ and TSOP-II variants - not BGA - in the document.
Can IDT71V416VS10PHG8 be used with 2.5 V logic interfaces?
No - IDT71V416VS10PHG8 is strictly a 3.3 V device. Its DC Operating Conditions specify VDD = 3.0–3.6 V, and VIH minimum is 2.0 V (not 1.7 V), confirming LVTTL compatibility only at 3.3 V. Interfacing with 2.5 V systems requires level translation, as stated in the Input High/Low Voltage specifications (Table 6) and Features list.
What is the function of pins BHE and BLE on IDT71V416VS10PHG8?
BHE (Bus High Enable) and BLE (Bus Low Enable) are active-low byte-select controls that independently gate the upper (I/O8–I/O15) and lower (I/O0–I/O7) data bytes during write operations. Their behavior is defined in the Truth Table (Table 3) and timing waveforms - enabling true 8-bit writes without external masking logic or data bus contention.
IDT71V416VS10PHG8 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:
- 10ns
- Access Time:
- 10 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
IDT71V416VS10PHG8 FAQ
1.How can I place an order for IDT71V416VS10PHG8 through Aetrix?
Please submit a Request for Quotation (RFQ) for IDT71V416VS10PHG8 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 IDT71V416VS10PHG8 reliable?
The price and inventory of IDT71V416VS10PHG8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IDT71V416VS10PHG8 is usually 5 days.
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IDT71V416VS10PHG8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IDT71V416VS10PHG8 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 IDT71V416VS10PHG8?
For technical support, including IDT71V416VS10PHG8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IDT71V416VS10PHG8 requirements.
6.How does Aetrix verify that IDT71V416VS10PHG8 is sourced from the original manufacturer or authorized distributors?
All IDT71V416VS10PHG8 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 IDT71V416VS10PHG8 meets industry standards.
7.What is the process for return or replacement of IDT71V416VS10PHG8?
All IDT71V416VS10PHG8 units undergo pre-shipment inspection (PSI). If there is an issue with IDT71V416VS10PHG8, 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 IDT71V416VS10PHG8 part is unused and in its original packaging.
Return procedure for IDT71V416VS10PHG8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
IDT71V416VS10PHG8 Tags

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