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Renesas IDT71V416VL12PHG
- Part No.:
- IDT71V416VL12PHG
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 44-TSOP (0.400", 10.16mm Width)
- Datasheet:
-
IDT71V416VL12PHG.pdf
- Description:
- IC SRAM 4MBIT PARALLEL 44TSOP II
- Quantity:
- Payment:
- Shipping:
Inventory:3,817
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Product details
Overview
IDT71V416VL12PHG 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 supports byte-wide and word-wide read/write operations via independent BHE/BLE controls and operates across industrial temperature range (–40°C to +85°C) in a 44-pin 400-mil plastic SOJ package.
For engineers reviewing the IDT71V416VL12PHG datasheet, IDT71V416VL12PHG pinout, IDT71V416VL12PHG application, or IDT71V416VL12PHG equivalent, key selection considerations include its 12 ns tAA/tACS timing, dual-byte enable architecture, low-power standby current (ISB ≤ 60 mA), and compatibility with legacy 3.3V memory bus designs requiring deterministic asynchronous access without clocks or refresh.
Technical Context
The IDT71V416VL12PHG implements fully static asynchronous circuitry-no clocks, no refresh cycles-enabling direct integration into microprocessor, DSP, and FPGA memory interfaces. Its address decoding uses row/column architecture with 18 address lines (A0–A17) supporting full 256K-word addressing, and all control inputs (CS, OE, WE, BHE, BLE) are LVTTL-compatible with VIH ≥ 2.0 V and VIL ≤ 0.8 V at VDD = 3.3 V.
Timing is defined by three independent access paths: chip-select–driven (tACS = 12 ns), output-enable–driven (tOE = 6 ns), and address-driven (tAA = 12 ns), each with guaranteed high-impedance transition times (tCHZ ≤ 6 ns, tOHZ ≤ 6 ns). The device supports simultaneous high- and low-byte writes via dedicated BHE/BLE pins, enabling efficient 8-bit peripheral interfacing without external logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 4,194,304 bits (256K × 16), enabling 32 KB of directly addressable data storage per device |
| Access Time (tAA) | 12 ns max - guarantees deterministic read latency for real-time control loops and burst-free CPU co-processor buffering |
| Supply Voltage | 3.0 V to 3.6 V - compatible with standard 3.3V logic rails and tolerant of ±10% regulation variation |
| Standby Current (ISB) | 60 mA max at fMAX - enables low-power hold mode during processor sleep without external power gating |
| Input Capacitance | 7 pF max - minimizes signal integrity impact on high-speed address/data buses with >20 MHz toggle rates |
| Operating Temperature | –40°C to +85°C - qualified for industrial automation, motor drives, and outdoor communications equipment |
| Output Drive | IOL = 8 mA / IOH = –4 mA - sufficient to drive 10+ LVTTL loads without bus termination resistors |
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 decode; A0 least significant, A17 most significant |
| CS | Chip Select | Active-low enable for device selection; must be stable before tAS to avoid address setup violation |
| OE | Output Enable | Active-low control for tri-state output drivers; enables concurrent reads while CS remains asserted |
| WE | Write Enable | Active-low write strobe; latches data on rising edge when combined with valid CS and BHE/BLE |
| BHE | High-Byte Enable | Active-low control for I/O8–I/O15; allows isolated 8-bit writes to upper byte without affecting lower byte |
| BLE | Low-Byte Enable | Active-low control for I/O0–I/O7; enables independent 8-bit writes to lower byte in mixed-width systems |
| I/O0–I/O15 | Bidirectional Data Bus | LVTTL-compatible 16-bit I/O; direction controlled implicitly by WE state and BHE/BLE activation |
| VDD | Power Supply | 3.3V core supply; two pins (pins 12 and 33) provide low-inductance path for decoupling |
| VSS | Ground | Signal and power ground; two pins (pins 11 and 34) reduce ground bounce in high-speed switching |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC Center Power/Ground Pinout | Reduces simultaneous switching noise (SSN) by symmetrically distributing VDD/VSS pins across package centerline |
| Dual Byte Enable (BHE/BLE) | Enables 8-bit peripheral interfacing on 16-bit buses without glue logic or data masking overhead |
| Asynchronous Operation | Eliminates need for clock distribution, PLLs, or refresh controllers-simplifies PCB layout and firmware |
| Low-Power Standby Mode | ISB1 ≤ 10 mA static current allows battery-backed retention in always-on industrial monitoring nodes |
| Industrial Temperature Range | Validated operation from –40°C to +85°C ensures reliability in uncontrolled environments like factory floors |
Applications
| Industrial PLC Memory Buffer | Legacy 3.3V Microcontroller External RAM |
|---|---|
Use Scenario: Real-time I/O scanning in programmable logic controllers where deterministic memory access avoids scan-time jitter. IC Role / Device Role / Timing Role: Asynchronous SRAM providing zero-wait-state 12 ns read/write access to ladder logic execution engine. Use Value: Eliminates pipeline stalls during high-frequency I/O updates; tOH = 4 ns ensures data hold stability across 20 MHz bus clocks. |
Use Scenario: External program/data memory expansion for ARM7 or ColdFire-based embedded controllers with limited on-chip RAM. IC Role / Device Role / Timing Role: Drop-in 16-bit memory interface supporting both code fetch and variable storage with byte-select capability. Use Value: BHE/BLE pins allow clean 8-bit peripheral register mapping without address decoding logic or bus transceivers. |
| FPGA Configuration Data Cache | DSP Algorithm Scratchpad Memory |
Use Scenario: Storing partial reconfiguration bitstreams or lookup tables in Xilinx Spartan or Intel MAX 10 FPGAs. IC Role / Device Role / Timing Role: High-reliability, non-refreshing memory holding volatile configuration data between partial reconfig cycles. Use Value: Fully static design prevents data corruption during FPGA clock domain transitions or power sequencing events. |
Use Scenario: Real-time coefficient storage and intermediate result buffering in TI C6000 or Analog Devices SHARC DSP systems. IC Role / Device Role / Timing Role: Low-latency scratchpad enabling single-cycle load/store for FFT butterfly operations. Use Value: 12 ns tAA and tWC support sustained 83.3 MHz memory bandwidth (12 ns cycle → ~83 MHz), matching DSP bus throughput. |
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-45ZSXI | 45 ns access time, 5V-tolerant I/O, 44-pin TSOP-II package | Designed for legacy 5V systems; incompatible with 3.3V-only buses due to VIH/VIL thresholds | Select only if migrating from 5V designs with voltage translation constraints |
| AS6C4008-12PIN | 12 ns access, 3.3V operation, but no BHE/BLE - byte masking requires external logic | Lacks native byte-enable functionality; increases BOM count and board area for 8-bit peripheral interfacing | Prefer IDT71V416VL12PHG when dual-byte control is required to minimize system complexity |
Compared with CY62148EV30LL-45ZSXI and AS6C4008-12PIN, the IDT71V416VL12PHG uniquely delivers 12 ns performance at 3.3V with integrated BHE/BLE and JEDEC noise-optimized pinout-making it optimal for new industrial designs prioritizing signal integrity and interface simplicity.
Availability
IDT71V416VL12PHG is available at Aetrix Electronics and suitable for industrial PLCs, legacy 3.3V microcontroller systems, FPGA configuration caches, and DSP scratchpad memory requiring stable component supply across extended product lifecycles.
Supply support for IDT71V416VL12PHG 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 semiconductor company specializing in timing, memory interface, RF, and sensor solutions for communications, computing, and industrial markets.
IDT71V416VL12PHG belongs to IDT's legacy high-speed CMOS SRAM product line, engineered for deterministic, low-latency memory expansion in resource-constrained embedded systems where refresh-free operation and industrial-grade reliability are mandatory.
FAQ
What is the operating temperature range for IDT71V416VL12PHG?
IDT71V416VL12PHG is rated for industrial temperature operation from –40°C to +85°C. This specification is validated per the manufacturer's recommended operating conditions table and applies across all guaranteed AC and DC parameters including tAA = 12 ns, ISB ≤ 60 mA, and VIH/VIL thresholds. The IDT71V416VL12PHG maintains full functionality within this range without derating.
Does IDT71V416VL12PHG require a clock or refresh circuit?
No, IDT71V416VL12PHG uses fully static asynchronous circuitry and requires no clock input or periodic refresh cycles. Data retention is maintained indefinitely as long as VDD remains within 3.0 V to 3.6 V and ambient temperature stays within –40°C to +85°C. This eliminates timing-critical clock tree design and simplifies power management in battery-operated IDT71V416VL12PHG applications.
How does the BHE and BLE functionality work in IDT71V416VL12PHG?
In IDT71V416VL12PHG, BHE (pin 26) controls I/O8–I/O15 and BLE (pin 27) controls I/O0–I/O7. When BHE is low and BLE is high, only the high byte is written; when BLE is low and BHE is high, only the low byte is written; both low enables full 16-bit word access. This is implemented in hardware with no internal arbitration delay-tBE = 6 ns ensures byte-select validity aligns with tAA timing.
What package type is used for IDT71V416VL12PHG?
IDT71V416VL12PHG uses a 44-pin, 400-mil plastic SOJ (Small Outline J-lead) package, designated SO44-1 in IDT documentation. It features center-aligned VDD (pins 12, 33) and VSS (pins 11, 34) for reduced noise coupling, and pin 28 is NC (no connect) per the official pin description table. This package is lead-free and RoHS-compliant.
Can IDT71V416VL12PHG operate with a 3.0V supply?
Yes, IDT71V416VL12PHG is fully specified for VDD = 3.0 V to 3.6 V. At 3.0 V minimum, VOH ≥ 2.4 V and VOL ≤ 0.4 V are guaranteed under load (IOH = –4 mA, IOL = 8 mA), and all AC timings-including tAA = 12 ns and tRC = 12 ns-remain valid. This allows interoperability with 3.0V-tolerant microcontrollers and level-shifted buses without additional regulation.
IDT71V416VL12PHG 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 44-TSOP II
IDT71V416VL12PHG FAQ
1.How can I place an order for IDT71V416VL12PHG through Aetrix?
Please submit a Request for Quotation (RFQ) for IDT71V416VL12PHG 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 IDT71V416VL12PHG reliable?
The price and inventory of IDT71V416VL12PHG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IDT71V416VL12PHG is usually 5 days.
3.What payment methods are accepted for IDT71V416VL12PHG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IDT71V416VL12PHG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IDT71V416VL12PHG?
IDT71V416VL12PHG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IDT71V416VL12PHG 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 IDT71V416VL12PHG?
For technical support, including IDT71V416VL12PHG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IDT71V416VL12PHG requirements.
6.How does Aetrix verify that IDT71V416VL12PHG is sourced from the original manufacturer or authorized distributors?
All IDT71V416VL12PHG 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 IDT71V416VL12PHG meets industry standards.
7.What is the process for return or replacement of IDT71V416VL12PHG?
All IDT71V416VL12PHG units undergo pre-shipment inspection (PSI). If there is an issue with IDT71V416VL12PHG, 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 IDT71V416VL12PHG part is unused and in its original packaging.
Return procedure for IDT71V416VL12PHG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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