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Renesas IDT71V416VL12BEI
- Part No.:
- IDT71V416VL12BEI
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 48-TFBGA
- Datasheet:
-
IDT71V416VL12BEI.pdf
- Description:
- IC SRAM 4MBIT PARALLEL 48CABGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,824
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Product details
Overview
IDT71V416VL12BEI 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, and industrial temperature range (–40°C to +85°C). It features LVTTL-compatible bidirectional I/O, separate byte enable (BHE/BLE), and JEDEC-standard power/ground pinout for noise reduction. Used in real-time embedded controllers requiring deterministic memory access without refresh.
For engineers reviewing the IDT71V416VL12BEI datasheet, IDT71V416VL12BEI pinout, IDT71V416VL12BEI application, or IDT71V416VL12BEI equivalent, key selection criteria include 12 ns read cycle time, low-power standby current (≤60 mA), byte-select capability, and compatibility with 44-pin SOJ/TSOP footprint designs.
Technical Context
The IDT71V416VL12BEI implements fully static asynchronous architecture-no clocks or refresh required-and uses high-reliability CMOS process technology. Its dual-byte enable (BHE/BLE) supports independent 8-bit data path control, while OE-driven output timing enables fast bus sharing in multiprocessor systems.
It delivers guaranteed tAA = 12 ns and tRC = 12 ns under industrial conditions (VDD = 3.0–3.6 V, TA = –40°C to +85°C), with tOE = 6 ns and tCHZ = 6 ns ensuring tight bus turnaround. Input/output capacitance is characterized at ≤7 pF (CIN) and ≤8 pF (CI/O), supporting stable signal integrity on dense PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 4,194,304 bits (256K × 16); supports full-word or half-word data transfers without external logic. |
| Access Time (tAA) | 12 ns max at VDD = 3.0–3.6 V, TA = –40°C to +85°C; ensures deterministic latency in hard real-time systems. |
| Supply Voltage | 3.3 V nominal (3.0–3.6 V); compatible with LVTTL logic families and eliminates level-shifting requirements. |
| Standby Current (ISB) | 60 mA max (industrial grade); enables low-power hold mode during processor sleep without data loss. |
| Byte Enable Pins | BHE and BLE inputs allow independent control of upper/lower 8-bit data lanes-critical for x86 and legacy bus interfacing. |
| Operating Temperature | –40°C to +85°C; qualified for industrial control, motor drives, and telecom line cards. |
| Package Type | 44-pin, 400-mil SOJ (SO44-1); surface-mount compatible with standard reflow profiles and automated assembly. |
Pinout & Package
Package: 44-pin, 400-mil plastic SOJ (SO44-1), JEDEC-standard center-power/center-ground layout for reduced switching noise.
| 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; must be asserted before BHE/BLE/WE for valid read/write cycles. |
| OE | Output Enable | Active-low control of output drivers; allows shared bus arbitration with 6 ns turn-off (tOHZ). |
| WE | Write Enable | Active-low write strobe; controls direction of I/O pins and initiates write sequence with tWP ≥ 8 ns. |
| BHE / BLE | Byte Enable | Independent high/low byte gating-enables 8-bit peripheral interfacing without data masking logic. |
| I/O0–I/O15 | Bidirectional Data | LVTTL-compatible I/O; tristated when CS high or OE high; supports 8 mA sink / 4 mA source drive. |
| VDD / VSS | Power / Ground | Center-placed VDD (pin 12) and VSS (pin 11) minimize ground bounce and improve EMI performance. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC Center Power/Ground Pinout | Reduces simultaneous switching noise by 30–40% vs. corner-placed power pins-critical for mixed-signal systems. |
| Separate Byte Enables (BHE/BLE) | Eliminates need for external byte-mask logic in 16-bit microprocessor buses (e.g., Intel 80C188, Motorola 68000 derivatives). |
| Low-Power Standby Mode (ISB ≤ 60 mA) | Enables >90% power reduction during idle periods while retaining data-ideal for battery-backed industrial controllers. |
| 12 ns Access with No Refresh | Provides SRAM-level determinism for real-time firmware execution without DRAM controller overhead or refresh interrupts. |
| LVTTL-Compatible I/O | Direct interface to 3.3 V microcontrollers, FPGAs, and ASICs-no level translators needed for voltage translation. |
Applications
| Industrial PLC Memory Buffer | Telecom Line Card Data Cache |
|---|---|
|
Use Scenario: Real-time I/O scanning and program execution in programmable logic controllers operating in harsh factory environments. IC Role / Device Role / Timing Role: Primary working memory for ladder logic interpreter; provides sub-15 ns deterministic access for scan-cycle timing compliance. Use Value: Industrial temperature rating and 12 ns access ensure reliable operation across thermal cycling; byte enables simplify integration with legacy 8-bit peripheral modules. |
Use Scenario: Packet buffering and configuration storage in T1/E1 line interface units deployed in central office equipment. IC Role / Device Role / Timing Role: Dual-port-accessible cache for framing engine registers and transient packet headers; supports burst reads via OE-controlled bus sharing. Use Value: Low ISB current extends uptime during brownout events; SOJ package withstands vibration and thermal stress in rack-mounted telecom chassis. |
| Medical Imaging Control FIFO | Avionics Display Frame Buffer |
|
Use Scenario: Temporary storage of sensor acquisition data between analog front-end sampling and DSP processing in portable ultrasound devices. IC Role / Device Role / Timing Role: High-speed FIFO buffer with independent byte writes-accepts interleaved ADC channel data without CPU intervention. Use Value: 12 ns tAA enables alignment with 80 MHz system clocks; LVTTL compatibility avoids signal integrity issues on compact medical PCBs. |
Use Scenario: Non-volatile frame storage for cockpit display units requiring immediate pixel rendering after cold start. IC Role / Device Role / Timing Role: Static frame buffer holding 640×480×16bpp graphics; accessed directly by display controller with zero wait states. Use Value: Guaranteed industrial temp operation ensures reliability at altitude; SOJ package meets DO-160D mechanical shock requirements. |
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 |
|---|---|---|---|
| CY62148EV30LL-12ZSXIT | Same density (256K × 16), 12 ns speed, but uses 44-pin TSOP II (SO44-2) instead of SOJ; higher ISB (75 mA vs. 60 mA). | Preferred where board space is constrained and reflow profile favors TSOP over SOJ; less suitable for high-vibration environments. | Select when TSOP footprint is already standardized and lower standby current is non-critical. |
| AS6C4008-12BIN | 4-Mbit (512K × 8) organization; requires external byte-width adaptation; 12 ns access but only commercial temp (0°C to +70°C). | Applicable in cost-sensitive consumer electronics where extended temperature range is unnecessary. | Choose only if design accepts 8-bit data bus and does not require industrial-grade thermal qualification. |
Compared with CY62148EV30LL-12ZSXIT and AS6C4008-12BIN, the IDT71V416VL12BEI uniquely combines industrial temperature support, SOJ package robustness, and native 16-bit byte-enable architecture-making it optimal for mission-critical embedded systems where reliability and pinout compatibility are prioritized over minor cost savings.
Availability
IDT71V416VL12BEI is available at Aetrix Electronics and suitable for industrial PLCs, telecom line cards, medical imaging subsystems, and avionics displays requiring stable component supply across extended lifecycle programs.
Supply support for IDT71V416VL12BEI 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) is a fabless semiconductor company specializing in timing, memory, interface, and RF solutions for communications, computing, and industrial markets.
The IDT71V416VL12BEI belongs to IDT's legacy high-speed SRAM product line, engineered for deterministic, low-latency memory access in real-time embedded systems where refresh-free operation and industrial reliability are mandatory.
FAQ
What is the maximum operating temperature range for the IDT71V416VL12BEI?
The IDT71V416VL12BEI is rated for industrial temperature operation from –40°C to +85°C. This specification is guaranteed across all electrical parameters including tAA = 12 ns, ISB ≤ 60 mA, and VIH/VIL thresholds. The "I" suffix in the part number explicitly denotes industrial qualification per IDT's ordering nomenclature.
Does the IDT71V416VL12BEI require a refresh circuit or clock signal?
No, the IDT71V416VL12BEI is a fully static RAM and requires no refresh circuitry or clock input. Its asynchronous design uses only CS, OE, WE, BHE, and BLE control signals. All internal circuitry remains stable with static DC conditions-eliminating refresh overhead in microcontroller or FPGA-based systems.
Can the IDT71V416VL12BEI be used with a 5 V microcontroller interface?
No-the IDT71V416VL12BEI is strictly a 3.3 V LVTTL device with VIH(min) = 2.0 V and VIL(max) = 0.8 V. Direct connection to 5 V logic violates absolute maximum ratings (VIN ≤ VDD + 0.5 V = 3.85 V) and risks permanent damage. Level translation is mandatory for 5 V host interfaces.
What is the function of pins BHE and BLE on the IDT71V416VL12BEI?
BHE (Bus High Enable) and BLE (Bus Low Enable) are active-low inputs that independently gate the upper (I/O8–I/O15) and lower (I/O0–I/O7) data bytes. When BHE = L and BLE = H, only the high byte is active; when both are low, full 16-bit word access occurs-enabling flexible interfacing with 8-bit peripherals or partial-word writes.
Is the IDT71V416VL12BEI pin-compatible with other speed grades in the same family?
Yes-the IDT71V416VL12BEI shares identical pinout, package (44-pin SOJ), and signal definitions with other IDT71V416VL variants (e.g., VL10BEI, VL15BEI). Speed grade differences affect only timing parameters (tAA, tRC) and power consumption-not pin assignment, voltage levels, or functional behavior.
IDT71V416VL12BEI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 48-TFBGA
- Packaging:
- Tray
- 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:
- 48-CABGA (9x9)
IDT71V416VL12BEI FAQ
1.How can I place an order for IDT71V416VL12BEI through Aetrix?
Please submit a Request for Quotation (RFQ) for IDT71V416VL12BEI 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 IDT71V416VL12BEI reliable?
The price and inventory of IDT71V416VL12BEI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IDT71V416VL12BEI is usually 5 days.
3.What payment methods are accepted for IDT71V416VL12BEI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IDT71V416VL12BEI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IDT71V416VL12BEI?
IDT71V416VL12BEI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IDT71V416VL12BEI 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 IDT71V416VL12BEI?
For technical support, including IDT71V416VL12BEI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IDT71V416VL12BEI requirements.
6.How does Aetrix verify that IDT71V416VL12BEI is sourced from the original manufacturer or authorized distributors?
All IDT71V416VL12BEI 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 IDT71V416VL12BEI meets industry standards.
7.What is the process for return or replacement of IDT71V416VL12BEI?
All IDT71V416VL12BEI units undergo pre-shipment inspection (PSI). If there is an issue with IDT71V416VL12BEI, 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 IDT71V416VL12BEI part is unused and in its original packaging.
Return procedure for IDT71V416VL12BEI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
IDT71V416VL12BEI Tags
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