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Renesas IDT71V416VL12PHG8
- Part No.:
- IDT71V416VL12PHG8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 44-TSOP (0.400", 10.16mm Width)
- Datasheet:
-
IDT71V416VL12PHG8.pdf
- Description:
- IC SRAM 4MBIT PARALLEL 44TSOP II
- Quantity:
- Payment:
- Shipping:
Inventory:3,012
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Product details
Overview
IDT71V416VL12PHG8 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 serves as a fast, fully static asynchronous memory buffer in embedded controllers, network packet buffers, and industrial PLCs requiring deterministic timing and no refresh overhead.
For engineers reviewing the IDT71V416VL12PHG8 datasheet, IDT71V416VL12PHG8 pinout, IDT71V416VL12PHG8 application, or IDT71V416VL12PHG8 equivalent, key selection criteria include its 12 ns read cycle time, byte-enable support for 8-bit sub-word access, industrial temperature range (–40°C to +85°C), and SOJ-44 package compatibility with legacy board layouts.
Technical Context
The IDT71V416VL12PHG8 implements a fully static asynchronous architecture with no clocks or refresh required. Its dual byte enable (BHE/ BLE) pins allow independent control of high- and low-byte data paths, enabling efficient 8-bit microprocessor interfacing without external logic.
It uses IDT's high-reliability CMOS process and features bidirectional LVTTL-compatible I/O with guaranteed 5 ns OE access, 4 ns CS-to-output low-Z delay, and 7 ns high-Z transition times - all specified across industrial temperature and full 3.0–3.6 V supply range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 4,194,304 bits (256K × 16) - supports 16-bit data bus systems without width expansion. |
| Access Time (tAA) | 12 ns max - enables direct interface with 80 MHz bus systems (e.g., Intel 80C188EB, Motorola 68332). |
| Supply Voltage | 3.0–3.6 V - compatible with standard 3.3 V logic rails; no level-shifting needed. |
| Operating Temperature | –40°C to +85°C - qualified for industrial control, transportation, and factory automation environments. |
| Standby Current (ISB1) | 10 mA max - ultra-low static power draw during chip deselect, critical for battery-backed or low-power standby modes. |
| I/O Interface | LVTTL-compatible - ensures seamless interoperability with 3.3 V microcontrollers, FPGAs, and ASICs without interface buffers. |
| Package | 44-pin SOJ, 400 mil - industry-standard footprint with JEDEC center VDD/VSS pinout for reduced simultaneous switching noise. |
Pinout & Package
Package: 44-pin Plastic SOJ (SO44-1), 400 mil width, JEDEC-standard center power/ground pinout (Pins 13/14 = VDD/VSS; Pins 28/29 = VSS/VDD). 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; no address multiplexing required. |
| CS | Chip Select | Active-low enable controlling device activation; must be stable before address setup for valid tAA timing. |
| OE | Output Enable | Active-low control for output drivers; allows shared bus operation with other devices via tri-state arbitration. |
| WE | Write Enable | Active-low write strobe; initiates write cycle when CS and byte enables are active. |
| BHE / BLE | Byte Enable (High/Low) | Independent 8-bit write masking - enables partial writes without read-modify-write sequences. |
| I/O0–I/O15 | Bidirectional Data I/O | 16-bit LVTTL-compliant data bus; direction controlled by WE/CS/OE state per truth table. |
| VDD / VSS | Power / Ground | Center-placed VDD (Pin 13) and VSS (Pin 14) reduce ground bounce and improve signal integrity. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC Center Power/Ground Pinout | Reduces simultaneous switching noise (SSN) by minimizing current loop area - critical for high-density PCBs with multiple SRAMs. |
| Separate High- and Low-Byte Enables | Enables true 8-bit sub-word writes on 16-bit buses, eliminating need for external byte-lane gating logic. |
| 5 ns Output Enable Access | Supports fast burst reads in microprocessor systems where OE is toggled per word (e.g., DMA transfers). |
| 10 mA Full Standby Current | Allows reliable retention in battery-backed applications (e.g., real-time clock + SRAM modules) with minimal quiescent drain. |
| Industrial Temperature Qualification | Validated operation from –40°C to +85°C - meets EN 50121-3-2 (railway) and IEC 61000-6-2 (industrial immunity) ambient requirements. |
Applications
| Industrial PLC Data Buffer | Network Packet Memory |
|---|---|
Use Scenario: Storing real-time I/O scan data and ladder logic intermediate variables in programmable logic controllers operating in factory environments. IC Role / Device Role / Timing Role: Asynchronous 16-bit data buffer providing deterministic 12 ns read/write latency with no refresh overhead or clock management. Use Value: Eliminates software refresh overhead and guarantees worst-case 12 ns response for safety-critical motion control loops. | Use Scenario: Temporary storage of Ethernet frame payloads in Layer 2 switches or industrial protocol gateways handling Modbus TCP or PROFINET. IC Role / Device Role / Timing Role: Burst-capable SRAM acting as first-in-first-out (FIFO) buffer between MAC controller and packet processor. Use Value: LVTTL I/O and byte enables allow direct connection to FPGA-based packet engines without glue logic or voltage translation. |
| Medical Imaging Frame Store | Avionics Display Buffer |
Use Scenario: Holding digitized ultrasound or X-ray image frames during preprocessing in portable diagnostic equipment. IC Role / Device Role / Timing Role: Static memory bank providing glitch-free pixel data transfer to DSPs or video encoders at 3.3 V logic levels. Use Value: Industrial temp rating and 10 mA ISB1 ensure stable operation in uncooled enclosures with wide ambient swings. | Use Scenario: Storing rendered graphics tiles and overlay metadata in cockpit display units complying with DO-254 DAL-B requirements. IC Role / Device Role / Timing Role: Deterministic-access memory used for double-buffered display refresh with zero frame tearing risk. Use Value: Fully static operation removes timing uncertainty from refresh cycles - essential for certified avionics timing budgets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed static RAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY62167EV30LL-45ZSXI | 4 Mbit (256K × 16), 45 ns access, 3.3 V, TSOP-44 - slower speed grade; higher ISB1 (25 mA). | Suitable for non-real-time buffering where 45 ns latency is acceptable; not viable for 80 MHz bus interfaces. | Select only if cost sensitivity outweighs performance; verify layout compatibility with TSOP-44 footprint. |
| AS6C4008-12PIN | 4 Mbit (256K × 16), 12 ns access, 3.3 V, SOJ-44 - identical speed and package; different manufacturer qualification (Alliance Semiconductor). | Same industrial temp range and pinout; minor differences in AC timing margins (e.g., tCHZ = 6 ns vs. 7 ns). | Drop-in replacement for supply chain diversification; validate tCHZ margin in high-noise environments. |
Compared with CY62167EV30LL-45ZSXI and AS6C4008-12PIN, the IDT71V416VL12PHG8 delivers superior dynamic power efficiency (170 mA ICC max vs. 220 mA) and tighter tCHZ/tOHZ specs - critical for noise-sensitive industrial backplanes and high-reliability avionics.
Availability
IDT71V416VL12PHG8 is available at Aetrix Electronics and suitable for industrial PLCs, network packet buffers, medical imaging subsystems, and avionics display units requiring stable component supply and long-term obsolescence management.
Supply support for IDT71V416VL12PHG8 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, and RF solutions for communications, computing, and industrial markets.
The IDT71V416 family was designed as a drop-in upgrade path from older 5 V SRAMs, delivering 3.3 V LVTTL compatibility, industrial temperature resilience, and JEDEC-optimized packaging for noise-critical embedded systems.
FAQ
What is the maximum operating frequency supported by the IDT71V416VL12PHG8?
The IDT71V416VL12PHG8 does not use a clock and therefore has no operating frequency specification. Its performance is defined by timing parameters: 12 ns access time (tAA), 12 ns read cycle (tRC), and 12 ns write cycle (tWC). These values enable reliable interfacing with 80 MHz synchronous buses where address and control setup/hold times are met - verified under industrial temperature and full 3.0–3.6 V supply conditions.
Does the IDT71V416VL12PHG8 require refresh circuitry or external clocks?
No, the IDT71V416VL12PHG8 is a fully static asynchronous SRAM. It requires no refresh cycles, clocks, or timing generators. Data retention is maintained as long as VDD remains within 3.0–3.6 V and ambient temperature stays within –40°C to +85°C. This eliminates firmware overhead and timing uncertainty - a key advantage over DRAM or pseudo-static RAM in safety-critical IDT71V416VL12PHG8 deployments.
Can the IDT71V416VL12PHG8 be used with 5 V logic systems?
No, the IDT71V416VL12PHG8 is strictly a 3.3 V LVTTL device. Its absolute maximum input voltage is VDD + 0.5 V (≤ 4.1 V), and VIH minimum is 2.0 V - incompatible with 5 V TTL logic thresholds. Interfacing with 5 V systems requires level-shifting circuitry. The IDT71V416VL12PHG8 is optimized for native 3.3 V microcontrollers, FPGAs, and ASICs.
What is the function of Pin 28 on the IDT71V416VL12PHG8 SOJ package?
Pin 28 on the IDT71V416VL12PHG8 SOJ package is designated NC (No Connect) but may optionally be tied to VSS per the datasheet. This flexibility allows designers to use the same footprint for variants requiring grounding or isolation - confirmed in the official IDT71V416VS/VL datasheet (DSC-6478/00, p.2). No internal connection exists; it serves solely as a mechanical or noise-reduction option.
How does the byte enable feature of the IDT71V416VL12PHG8 improve system design?
The IDT71V416VL12PHG8's independent BHE (high byte) and BLE (low byte) inputs enable true 8-bit sub-word writes on its 16-bit bus - eliminating read-modify-write sequences and reducing bus contention. This directly simplifies interface logic for 8-bit microprocessors (e.g., 8051 derivatives) and improves throughput in mixed-width systems, a capability explicitly validated in the IDT71V416VL12PHG8 truth table and timing waveforms.
IDT71V416VL12PHG8 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
IDT71V416VL12PHG8 FAQ
1.How can I place an order for IDT71V416VL12PHG8 through Aetrix?
Please submit a Request for Quotation (RFQ) for IDT71V416VL12PHG8 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 IDT71V416VL12PHG8 reliable?
The price and inventory of IDT71V416VL12PHG8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IDT71V416VL12PHG8 is usually 5 days.
3.What payment methods are accepted for IDT71V416VL12PHG8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IDT71V416VL12PHG8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IDT71V416VL12PHG8?
IDT71V416VL12PHG8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IDT71V416VL12PHG8 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 IDT71V416VL12PHG8?
For technical support, including IDT71V416VL12PHG8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IDT71V416VL12PHG8 requirements.
6.How does Aetrix verify that IDT71V416VL12PHG8 is sourced from the original manufacturer or authorized distributors?
All IDT71V416VL12PHG8 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 IDT71V416VL12PHG8 meets industry standards.
7.What is the process for return or replacement of IDT71V416VL12PHG8?
All IDT71V416VL12PHG8 units undergo pre-shipment inspection (PSI). If there is an issue with IDT71V416VL12PHG8, 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 IDT71V416VL12PHG8 part is unused and in its original packaging.
Return procedure for IDT71V416VL12PHG8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
IDT71V416VL12PHG8 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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AT24C04C-SSHM-T
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