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Renesas 71V124SA12YGI
- Part No.:
- 71V124SA12YGI
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 32-BSOJ (0.400", 10.16mm Width)
- Datasheet:
-
71V124SA12YGI.pdf
- Description:
- IC SRAM 1MBIT PARALLEL 32SOJ
- Quantity:
- Payment:
- Shipping:
Inventory:1,452
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Product details
Overview
71V124SA12YGI from Renesas Electronics is a 128K × 8 (1 Mbit) high-speed CMOS static RAM with JEDEC center-power/ground pinout, 12 ns access time, single 3.3 V supply, LVTTL-compatible I/O, and industrial temperature range (–40°C to +85°C). It serves as asynchronous main or buffer memory in real-time control systems requiring deterministic timing and zero-refresh operation.
For engineers reviewing the 71V124SA12YGI datasheet, 71V124SA12YGI pinout, 71V124SA12YGI application, or 71V124SA12YGI equivalent, key selection criteria include its 12 ns tAA/tRC timing, TSOP-32 and SOJ-32 package options, low 40 mA ISB standby current, and compatibility with legacy 3.3 V LVTTL bus interfaces in avionics data recorders and industrial PLCs.
Technical Context
The 71V124SA12YGI implements fully static asynchronous circuitry-no clocks or refresh cycles required-and uses dual-control logic with independent Chip Select (CS) and Output Enable (OE) inputs to support flexible read/write gating. Its center power/ground pinout minimizes simultaneous switching noise across the 32-pin SOJ package.
It features bidirectional LVTTL-compatible I/Os (VIH = 2.0 V min, VOL = 0.4 V max at 8 mA), operates over full industrial voltage (3.0–3.6 V), and guarantees tCLZ ≤ 4 ns and tOHZ ≤ 6 ns for fast bus turnaround in burst-mode memory subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 128K × 8-bit (1,048,576 bits); supports byte-wide parallel data transfers without address multiplexing. |
| Access Time (tAA) | 12 ns max; enables reliable interface with 80 MHz microcontrollers and DSPs using no wait states. |
| Supply Voltage | 3.0 V to 3.6 V; compatible with standard 3.3 V LVTTL logic rails and tolerant of ±5% regulation drift. |
| Standby Current (ISB) | 40 mA max at VDD = max, f = fMAX; ensures low power consumption during idle cycles in battery-backed systems. |
| Operating Temperature | –40°C to +85°C; qualified for use in uncontrolled industrial enclosures and transportation electronics. |
| I/O Compatibility | LVTTL input thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V) and output drive (VOH ≥ 2.4 V at –4 mA, VOL ≤ 0.4 V at 8 mA). |
| Package | 32-pin 400-mil Plastic SOJ (PBG32); surface-mount compatible with standard reflow profiles and IPC-7351B land patterns. |
Pinout & Package
71V124SA12YGI is housed in a 32-pin 400-mil Plastic SOJ (PBG32) package with JEDEC-standard center power/ground pinout-VDD on pins 24 and 28, GND on pins 13 and 20-to reduce ground bounce and improve signal integrity in high-speed parallel buses.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus accepting full 128K-word space; no internal latching or multiplexing required. |
| I/O0–I/O7 | Bidirectional Data Bus | 8-bit LVTTL-compliant data path; high-impedance state when CS = high or OE = high. |
| CS | Chip Select | Active-low enable controlling device selection; tACS = 12 ns max determines earliest valid read/write window. |
| OE | Output Enable | Active-low control for output drivers only; allows read data gating independent of CS (tOE = 6 ns max). |
| WE | Write Enable | Active-low write strobe; initiates write cycle when CS = low; tWP = 8 ns min ensures data setup before WE deassertion. |
| VDD | Power Supply | Two dedicated 3.3 V supply pins (pins 24, 28) placed centrally to minimize IR drop and noise coupling. |
| GND | Ground Reference | Two dedicated ground pins (pins 13, 20) symmetrically positioned to balance return current paths. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC Center Power/Ground Pinout | Reduces simultaneous switching noise by 30–40% versus corner-supply layouts, improving signal integrity in dense PCBs. |
| Zero-Refresh Static Architecture | Eliminates external refresh circuitry and timing constraints, simplifying FPGA- or MCU-based memory controllers. |
| Dual Control Logic (CS + OE) | Enables partial read gating-data outputs disabled while chip remains selected-reducing bus contention in multi-device systems. |
| Low Dynamic Standby Current | ISB = 40 mA max at fMAX supports energy-efficient sleep modes in portable test equipment and edge sensors. |
| Industrial Temperature Qualification | Validated operation from –40°C to +85°C ensures reliability in factory automation, rail signaling, and outdoor telecom nodes. |
Applications
| Avionics Data Recorders | Industrial PLC I/O Buffers |
|---|---|
|
Use Scenario: Capturing high-rate sensor telemetry (e.g., accelerometer, pressure, temperature) during flight for post-event analysis. IC Role / Device Role / Timing Role: Asynchronous buffer memory storing raw 8-bit samples at up to 83 MB/s (12 ns cycle), interfaced directly to ADC FIFO controllers. Use Value: Deterministic 12 ns access and zero-refresh operation guarantee uninterrupted capture during power transients or EMI events. |
Use Scenario: Temporarily staging digital I/O status changes between scan cycles in modular programmable logic controllers. IC Role / Device Role / Timing Role: Byte-wide scratchpad RAM holding 128K discrete input/output states, accessed via parallel bus under real-time OS scheduling. Use Value: LVTTL compatibility and 40 mA ISB enable direct connection to legacy 3.3 V backplane buses with minimal level-shifting overhead. |
| Railway Signaling Controllers | Medical Imaging Front-Ends |
|
Use Scenario: Storing interlocking logic tables and route validation flags in EN 5012x-certified signaling hardware. IC Role / Device Role / Timing Role: Non-volatile-configurable SRAM used for safety-critical lookup tables, powered from redundant 3.3 V supplies. Use Value: Industrial temp rating and center-power pinout ensure stable operation in railcar cabinets subject to thermal cycling and vibration. |
Use Scenario: Buffering real-time pixel data streams from X-ray or ultrasound sensor arrays prior to FPGA-based compression. IC Role / Device Role / Timing Role: High-speed frame buffer supporting burst writes at 83 MHz, synchronized to sensor clock via CS/OE handshaking. Use Value: tCLZ ≤ 4 ns and tOHZ ≤ 6 ns allow sub-10 ns bus turnaround-critical for maintaining throughput in multi-channel imaging pipelines. |
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 |
|---|---|---|---|
| CY62128EV30LL-45ZSXI | 128K × 8, 45 ns access, 5 V tolerant, SOIC-32 package | Slower timing; suited for legacy 5 V systems where voltage margin >3.6 V is required | Select only if system operates at 5 V or requires extended voltage tolerance beyond 3.6 V. |
| AS6C1008-12TIN | 128K × 8, 12 ns access, 3.3 V, TSOP-32, lower ICC (110 mA vs. 130 mA) | Same speed and voltage but higher leakage (ISB1 = 25 µA vs. 10 µA) and no industrial temp grade | Consider for commercial-temp cost-sensitive designs where standby current <25 µA is not critical. |
Compared with CY62128EV30LL-45ZSXI and AS6C1008-12TIN, the 71V124SA12YGI uniquely combines industrial temperature rating, center-power SOJ layout, and 40 mA ISB-making it optimal for ruggedized embedded systems demanding both speed and thermal resilience.
Availability
71V124SA12YGI is available at Aetrix Electronics and suitable for avionics data recorders, industrial PLC I/O buffers, and railway signaling controllers requiring stable component supply across extended lifecycle programs.
Supply support for 71V124SA12YGI 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
Renesas Electronics Corporation is a global semiconductor leader delivering microcontrollers, analog, power, and memory solutions for automotive, industrial, and infrastructure markets.
The 71V124SA12YGI belongs to Renesas' legacy high-speed parallel SRAM product line, designed specifically for deterministic, zero-refresh memory interfacing in real-time embedded systems with strict timing and reliability requirements.
FAQ
What is the maximum operating frequency supported by the 71V124SA12YGI?
The 71V124SA12YGI does not operate on a clock; it is an asynchronous SRAM. Its maximum effective throughput is determined by its 12 ns read/write cycle time (tRC), enabling reliable operation at up to 83 MHz in burst-access configurations. Timing margins must be verified against system-level setup/hold requirements using the AC Electrical Characteristics table in the Renesas datasheet.
Does the 71V124SA12YGI require refresh circuitry or external clocks?
No-the 71V124SA12YGI is a fully static RAM and requires no refresh cycles or clocks. Its internal circuitry maintains data indefinitely as long as VDD is applied within specification (3.0–3.6 V) and ambient temperature remains within –40°C to +85°C. This eliminates timing-critical refresh overhead in MCU- or FPGA-based controllers.
Can the 71V124SA12YGI be used with 5 V logic interfaces?
No-the 71V124SA12YGI is strictly a 3.3 V LVTTL device. Its absolute maximum input voltage is VDD + 0.5 V (≤4.1 V), and VIH is specified minimum 2.0 V-not 5 V tolerant. Interfacing with 5 V systems requires level translation, such as TI SN74AVC4T245 or similar bidirectional translators rated for 3.3 V ↔ 5 V conversion.
What is the significance of the "YGI" suffix in 71V124SA12YGI?
In the 71V124SA12YGI ordering code, "YG" denotes the 400-mil Plastic SOJ package (PBG32), and "I" indicates industrial temperature grade (–40°C to +85°C). The full part number confirms this device is a 12 ns, industrial-grade, SOJ-packaged variant of the IDT71V124 family, now manufactured and supported by Renesas Electronics.
How does the center power/ground pinout improve noise performance in the 71V124SA12YGI?
The 71V124SA12YGI places VDD on pins 24 and 28 and GND on pins 13 and 20-symmetrically centered across the 32-pin SOJ body. This layout reduces ground loop inductance and equalizes current return paths, cutting simultaneous switching noise by up to 40% compared to corner-supply packages. It directly improves signal integrity on high-speed parallel buses in noise-sensitive applications like avionics and medical imaging.
71V124SA12YGI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 32-BSOJ (0.400", 10.16mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Asynchronous
- Memory Size:
- 1Mbit
- Memory Organization:
- 128K x 8
- 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:
- 32-SOJ
71V124SA12YGI FAQ
1.How can I place an order for 71V124SA12YGI through Aetrix?
Please submit a Request for Quotation (RFQ) for 71V124SA12YGI 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 71V124SA12YGI reliable?
The price and inventory of 71V124SA12YGI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 71V124SA12YGI is usually 5 days.
3.What payment methods are accepted for 71V124SA12YGI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 71V124SA12YGI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 71V124SA12YGI?
71V124SA12YGI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 71V124SA12YGI 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 71V124SA12YGI?
For technical support, including 71V124SA12YGI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 71V124SA12YGI requirements.
6.How does Aetrix verify that 71V124SA12YGI is sourced from the original manufacturer or authorized distributors?
All 71V124SA12YGI 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 71V124SA12YGI meets industry standards.
7.What is the process for return or replacement of 71V124SA12YGI?
All 71V124SA12YGI units undergo pre-shipment inspection (PSI). If there is an issue with 71V124SA12YGI, 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 71V124SA12YGI part is unused and in its original packaging.
Return procedure for 71V124SA12YGI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
71V124SA12YGI 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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24LC01BT-I/OT
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M24C02-FMC6TG
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AT24CS02-SSHM-T
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93LC46BT-I/OT
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AT24C04C-SSHM-T
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24LC01BT-I/SN
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24AA02UIDT-I/OT
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AT24C08C-STUM-T
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