My Inquiry
My Account
Renesas IDT71V416VS15YG8
- Part No.:
- IDT71V416VS15YG8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 44-BSOJ (0.400", 10.16mm Width)
- Datasheet:
-
IDT71V416VS15YG8.pdf
- Description:
- IC SRAM 4MBIT PARALLEL 44SOJ
- Quantity:
- Payment:
- Shipping:
Inventory:2,586
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
IDT71V416VS15YG8 from Integrated Device Technology is a 4-Mbit (256K × 16) high-speed CMOS static RAM operating from a single 3.3 V supply, with 15 ns access time, JEDEC-compliant center power/ground pinout, and LVTTL-compatible bidirectional I/Os. It supports byte-wide or full-word 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 legacy industrial controllers.
For engineers reviewing the IDT71V416VS15YG8 datasheet, IDT71V416VS15YG8 pinout, IDT71V416VS15YG8 application, or IDT71V416VS15YG8 equivalent, key selection criteria include 15 ns read cycle time, dual byte enable (BHE/BLE), SOJ-44 package compatibility, and industrial-grade standby current of 50 mA max at fMAX.
Technical Context
The IDT71V416VS15YG8 implements fully static asynchronous operation-no clocks or refresh required-and uses separate high-byte (BHE) and low-byte (BLE) enables to support 8-bit sub-word accesses without external logic. Its address decoding covers A0–A17 (18-bit), enabling full 256K-word addressing with no internal multiplexing.
Timing is controlled by three independent enables: Chip Select (CS), Output Enable (OE), and Write Enable (WE), allowing flexible bus arbitration. The device guarantees tAA = 15 ns, tRC = 15 ns, and tOE = 7 ns under industrial conditions with VDD = 3.0–3.6 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 4,194,304 bits (256K × 16), enabling 32 KB of fast, non-refreshed storage for firmware caching or FIFO buffers |
| Access Time (tAA) | 15 ns max at –40°C to +85°C, supporting 66.7 MHz burst-free bus interfacing |
| Supply Voltage | 3.0–3.6 V single supply, compatible with 3.3 V logic families without level translation |
| Standby Current (ISB) | 50 mA max at fMAX, reducing idle power in always-on industrial control modules |
| I/O Interface | LVTTL-compatible bidirectional I/O0–I/O15, ensuring direct connection to FPGA or microcontroller data buses |
| Byte Control | Dedicated BHE and BLE inputs allow independent 8-bit writes to upper/lower bytes-no glue logic needed |
| Package | 44-pin, 400-mil plastic SOJ (SO44-1), JEDEC-standard footprint for legacy PCB reuse |
Pinout & Package
44-pin, 400-mil plastic SOJ (SO44-1) package with JEDEC center power/ground pinout (VDD/VSS on pins 12 & 33, and 25 & 34) minimizing simultaneous switching noise. Pin 28 is NC or optionally tied to VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A17 | Address Inputs | 18-bit address bus accepting full 256K-word range; no address multiplexing required |
| CS | Chip Select | Active-low global enable; deassertion places all outputs in high-Z and reduces ICC to ISB |
| OE | Output Enable | Active-low control for output drivers only; allows read data gating without disabling chip |
| WE | Write Enable | Active-low signal initiating write cycles; timing-critical for tWP ≥ 10 ns minimum pulse width |
| BHE / BLE | Byte Enable | Independent active-low controls for upper (I/O8–I/O15) and lower (I/O0–I/O7) data bytes |
| I/O0–I/O15 | Bidirectional Data | True tristate I/Os with LVTTL voltage thresholds; drive strength supports 8 mA sink / 4 mA source |
| VDD | Power Supply | 3.3 V core supply; pins 12, 33 provide distributed decoupling points |
| VSS | Ground | Signal and power ground; pins 11, 24, 34 ensure low-inductance return paths |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC Center Power/Ground Pinout | Reduces simultaneous switching noise by interleaving VDD/VSS across the package body |
| Separate Byte Enables (BHE/BLE) | Enables 8-bit sub-word writes without external demultiplexing or bus transceivers |
| 5 ns Output Enable Propagation (tOE) | Allows rapid read turnaround in shared-bus systems with tight timing margins |
| Full Static Operation | No clocks, no refresh cycles-ideal for deterministic real-time embedded systems |
| Industrial Temperature Range | Rated for –40°C to +85°C operation, validated for use in factory automation and transportation electronics |
Applications
| Industrial PLC Data Buffers | Legacy Network Interface Cards |
|---|---|
Use Scenario: Storing transient sensor aggregation data in programmable logic controllers during cyclic scan execution. IC Role / Device Role / Timing Role: Asynchronous SRAM providing zero-wait-state read/write access to CPU during 10 ms scan cycles. Use Value: 15 ns tAA ensures deterministic response within tight scan timing budgets; BHE/BLE supports byte-aligned Modbus register updates. | Use Scenario: Acting as packet buffer memory in 10/100 Mbps Ethernet NICs with MIPS-based MAC controllers. IC Role / Device Role / Timing Role: Dual-port-capable SRAM interfaced via 16-bit LVTTL bus for frame ingress/egress staging. Use Value: SOJ-44 footprint matches legacy NIC layouts; 3.3 V operation eliminates level-shifter components. |
| Avionics Display Frame Stores | Ruggedized Test Equipment Memory |
Use Scenario: Holding rasterized display data for monochrome cockpit displays requiring EMI-resilient memory access. IC Role / Device Role / Timing Role: High-reliability SRAM with center VDD/VSS pinout minimizing radiated emissions during pixel fetch bursts. Use Value: JEDEC-compliant pinout reduces board-level noise coupling; industrial temp rating supports extended flight envelope operation. | Use Scenario: Serving as acquisition memory in portable oscilloscopes and protocol analyzers deployed in field service. IC Role / Device Role / Timing Role: Non-volatile-buffered SRAM capturing high-speed digital signals without refresh-induced jitter. Use Value: Full static design eliminates timing uncertainty from refresh cycles; 50 mA ISB enables battery-backed operation. |
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-15ZSXI | 4 Mbit (256K × 16), 15 ns, 3.3 V, SOJ-44, but uses different byte enable polarity (active-high BHE/BLE) | Requires inverted byte enable logic; not drop-in for IDT71V416VS15YG8's active-low BHE/BLE | Select only if redesigning byte enable generation circuitry |
| AS6C4008-15ZIN | 4 Mbit (256K × 16), 15 ns, 3.3 V, SOJ-44, but lacks dedicated BHE/BLE-uses single UB/LB with OE-controlled direction | Cannot perform independent upper/lower byte writes; requires external bus transceivers for byte masking | Choose only when byte masking is unnecessary and board space permits added logic |
Compared with CY62167EV30LL-15ZSXI and AS6C4008-15ZIN, the IDT71V416VS15YG8 uniquely delivers true independent active-low byte enables in a JEDEC-standard SOJ-44 package, eliminating need for polarity inversion or external byte gating-critical for legacy system drop-in replacements.
Availability
IDT71V416VS15YG8 is available at Aetrix Electronics and suitable for industrial PLCs, legacy network interface cards, avionics display subsystems, and ruggedized test equipment requiring stable component supply and long-term obsolescence management.
Supply support for IDT71V416VS15YG8 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 power management ICs for communications and computing infrastructure.
The IDT71V416VS15YG8 belongs to IDT's legacy high-speed parallel SRAM product line, designed specifically for industrial and telecom applications demanding deterministic timing, low-noise operation, and long-lifecycle availability.
FAQ
What is the operating temperature range for the IDT71V416VS15YG8?
The IDT71V416VS15YG8 is rated for industrial temperature operation from –40°C to +85°C. This specification is guaranteed across all AC and DC parameters in the datasheet, including tAA = 15 ns, ISB ≤ 50 mA, and VIL/VIH thresholds. The "I" suffix in the part number explicitly denotes industrial grade, and the "Y" indicates SOJ-44 packaging.
Does the IDT71V416VS15YG8 require a clock or refresh circuit?
No, the IDT71V416VS15YG8 uses fully static CMOS design with no clocks or refresh cycles required. All timing is asynchronous and governed solely by CS, OE, WE, and address setup/hold relationships. This makes the IDT71V416VS15YG8 ideal for deterministic real-time systems where refresh-induced latency or jitter is unacceptable.
Can the IDT71V416VS15YG8 be used with 5 V logic interfaces?
No-the IDT71V416VS15YG8 is strictly a 3.3 V LVTTL device. Its absolute maximum input voltage is VDD + 0.5 V (≤ 4.1 V), and VIH min is 2.0 V at VDD = 3.0 V. Direct connection to 5 V logic will exceed VIH(max) and risk damage. Level translation is mandatory for 5 V host interfaces.
What is the function of Pin 28 on the IDT71V416VS15YG8 SOJ package?
Pin 28 on the IDT71V416VS15YG8 is designated NC (No Connect), but the datasheet states it may optionally be connected to VSS for additional grounding. It is not electrically bonded and carries no internal signal. Leaving it unconnected or tying it to ground does not affect IDT71V416VS15YG8 functionality or timing.
How does the byte enable architecture of the IDT71V416VS15YG8 differ from single-enable SRAMs?
The IDT71V416VS15YG8 provides two independent active-low enables-BHE for I/O8–I/O15 and BLE for I/O0–I/O7-allowing simultaneous or separate 8-bit writes without external logic. In contrast, single-enable SRAMs require external gates or transceivers to mask bytes, increasing propagation delay and board area. This dual-enable structure is integral to the IDT71V416VS15YG8's pinout and timing specifications.
IDT71V416VS15YG8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 44-BSOJ (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:
- 15ns
- Access Time:
- 15 ns
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 44-SOJ
IDT71V416VS15YG8 FAQ
1.How can I place an order for IDT71V416VS15YG8 through Aetrix?
Please submit a Request for Quotation (RFQ) for IDT71V416VS15YG8 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 IDT71V416VS15YG8 reliable?
The price and inventory of IDT71V416VS15YG8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IDT71V416VS15YG8 is usually 5 days.
3.What payment methods are accepted for IDT71V416VS15YG8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IDT71V416VS15YG8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IDT71V416VS15YG8?
IDT71V416VS15YG8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IDT71V416VS15YG8 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 IDT71V416VS15YG8?
For technical support, including IDT71V416VS15YG8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IDT71V416VS15YG8 requirements.
6.How does Aetrix verify that IDT71V416VS15YG8 is sourced from the original manufacturer or authorized distributors?
All IDT71V416VS15YG8 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 IDT71V416VS15YG8 meets industry standards.
7.What is the process for return or replacement of IDT71V416VS15YG8?
All IDT71V416VS15YG8 units undergo pre-shipment inspection (PSI). If there is an issue with IDT71V416VS15YG8, 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 IDT71V416VS15YG8 part is unused and in its original packaging.
Return procedure for IDT71V416VS15YG8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
IDT71V416VS15YG8 Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
