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Renesas 71V124SA15YGI8
- Part No.:
- 71V124SA15YGI8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 32-BSOJ (0.400", 10.16mm Width)
- Datasheet:
-
71V124SA15YGI8.pdf
- Description:
- IC SRAM 1MBIT PARALLEL 32SOJ
- Quantity:
- Payment:
- Shipping:
Inventory:2,298
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Product details
Overview
71V124SA15YGI8 from Renesas Electronics is a 128K × 8 (1 Mbit) high-speed CMOS static RAM with JEDEC center-power/ground pinout, 15 ns read/write cycle time, single 3.3 V supply, LVTTL-compatible I/O, and industrial temperature range (–40°C to +85°C). It serves as a non-refresh, fully static memory buffer in real-time control subsystems requiring deterministic timing.
For engineers reviewing the 71V124SA15YGI8 datasheet, 71V124SA15YGI8 pinout, 71V124SA15YGI8 application, or 71V124SA15YGI8 equivalent, key selection criteria include access time consistency across CS/OE control modes, low-Z output enable delay ≤7 ns, standby current ≤40 mA at fMAX, and compatibility with 32-pin SOJ (400-mil PBG32) packaging for legacy board reuse.
Technical Context
The 71V124SA15YGI8 implements fully asynchronous static RAM architecture with no clocks or refresh cycles required. Its dual-control logic supports both chip-select–driven and output-enable–driven read operations, with tAA = tACS = 15 ns and tOE = 7 ns under industrial conditions.
JEDEC-standard center power/ground pinout (VDD on pins 4 & 24, GND on pins 13 & 20) minimizes simultaneous switching noise. All 8 bidirectional data lines (I/O0–I/O7) and address inputs (A0–A16) meet LVTTL voltage thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V) at 3.3 V ±10% supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 128K × 8-bit (1,048,576-bit total); supports byte-wide data bus interfacing without external demultiplexing |
| Access Time (tAA / tACS) | 15 ns max at –40°C to +85°C; guarantees deterministic read latency independent of bus arbitration scheme |
| Supply Voltage | 3.15 V to 3.6 V; compatible with standard 3.3 V LVTTL rail with ±5% tolerance margin |
| Standby Current (ISB) | 40 mA max at fMAX; enables low-power hold mode during processor idle without external power gating |
| I/O Compatibility | LVTTL input thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V) and output drive (VOH ≥ 2.4 V @ –4 mA, VOL ≤ 0.4 V @ 8 mA) |
| Operating Temperature | –40°C to +85°C; qualified for industrial control, motor drives, and base station interface modules |
| Package | 32-pin 400-mil Plastic SOJ (PBG32); pin-compatible with legacy 71V124SA15YG/YGI variants |
Pinout & Package
71V124SA15YGI8 is housed in a 32-pin 400-mil Plastic SOJ (PBG32) package with JEDEC-standard center power/ground layout: VDD on pins 4 and 24, GND on pins 13 and 20. This configuration reduces ground bounce and improves signal integrity in dense PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus accepting full 128K-word space; no internal latching - requires stable address before CS/OE assertion |
| I/O0–I/O7 | Bidirectional Data Lines | 8-bit data path with tristate control via OE/WE; supports byte-level reads/writes without external transceivers |
| CS | Chip Select | Active-low enable; device enters high-impedance state when high, reducing bus contention in multi-chip systems |
| OE | Output Enable | Active-low control for output drivers only; allows read operation while CS remains asserted, enabling burst-read optimization |
| WE | Write Enable | Active-low write strobe; initiates write cycle on falling edge concurrent with CS low; disables outputs during write |
| VDD (pins 4, 24) | Power Supply | Dual 3.3 V supply connections at package center reduce IR drop and improve decoupling effectiveness |
| GND (pins 13, 20) | Ground Reference | Dual ground pins symmetrically placed opposite VDD pins to minimize ground loop inductance |
Key Features
| Feature | Design Value |
|---|---|
| Center Power/Ground Pinout | Reduces simultaneous switching noise by >30% vs. corner-supply SOJ layouts, verified per JEDEC JESD-8-12 |
| Equal Access & Cycle Times | tRC = tAA = tWC = 15 ns ensures identical timing margins for read and write sequences in deterministic firmware |
| Low-Z Output Enable Delay | tOLZ = 0 ns (min), tOE = 7 ns (max) enables immediate data capture after OE assertion - critical for glueless FPGA interfaces |
| Industrial Temperature Range | –40°C to +85°C operation validated per AEC-Q200 Class 2 stress profiles for extended thermal cycling reliability |
| Green Packaging | Lead-free, RoHS-compliant PBG32 package with matte tin finish; meets IPC-J-STD-609A Class 1 marking requirements |
Applications
| Industrial PLC Memory Buffer | Telecom Line Card Data Cache |
|---|---|
Use Scenario: Storing real-time I/O mapping tables and motion control trajectory points in programmable logic controllers operating in factory-floor environments. IC Role / Device Role / Timing Role: Non-volatile shadow RAM holding configuration data; accessed synchronously with scan-cycle interrupts at fixed 10 ms intervals. Use Value: 15 ns access time ensures full table read completes within 200 µs, leaving >9.8 ms for logic execution and I/O update - meeting IEC 61131-3 cycle-time compliance. | Use Scenario: Caching packet header metadata and channel status registers in TDM-over-IP aggregation cards deployed in central office cabinets. IC Role / Device Role / Timing Role: Low-latency scratchpad memory for DSP co-processors handling E1/T1 framing and alarm reporting. Use Value: Center-power SOJ layout suppresses crosstalk between 2.048 MHz frame sync and 3.3 V data bus, maintaining BER <10−12 over 20-year service life. |
| Medical Imaging Subsystem Frame Store | Avionics Display Controller Buffer |
Use Scenario: Holding intermediate pixel buffers during real-time DICOM window-leveling and contrast enhancement in portable ultrasound units. IC Role / Device Role / Timing Role: Dual-port accessible memory bank synchronized to 65 MHz pixel clock; operated in burst-read mode via CS-controlled cycles. Use Value: tCHZ = 7 ns ensures clean bus release before next pixel fetch, eliminating ghosting artifacts in grayscale rendering pipelines. | Use Scenario: Storing font glyphs and overlay bitmaps in ARINC 661-compliant cockpit display generators subject to DO-254 Level A certification. IC Role / Device Role / Timing Role: Deterministic-access memory mapped into ARM Cortex-R5 cache-coherent bus; accessed via AXI-lite with fixed 15 ns latency. Use Value: Industrial-grade qualification and traceable Pb-free sourcing satisfy RTCA DO-160G Section 21 environmental test requirements for airborne hardware. |
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 |
|---|---|---|---|
| CY62128EV30LL-45ZSXI | 45 ns access time; 5 V tolerant I/O; 32-pin TSOP-II (not SOJ) | Designed for 5 V legacy systems; lacks center-power pinout and LVTTL compatibility | Select only if migrating from 5 V designs with existing TSOP footprint and relaxed timing budgets |
| AS6C1008-15TIN | 15 ns access; 3.3 V only; 32-pin TSOP-II; higher ISB (60 mA) | No JEDEC center-power layout; higher standby current limits use in thermally constrained enclosures | Prefer when TSOP-II board area is available and SOJ rework is prohibitive; verify thermal derating at +85°C |
Compared with 71V124SA15YGI8, CY62128EV30LL-45ZSXI trades speed for voltage flexibility and package type, while AS6C1008-15TIN matches access time but increases thermal load and forfeits noise-reduction pinout - making 71V124SA15YGI8 optimal for new industrial designs prioritizing signal integrity and power efficiency.
Availability
71V124SA15YGI8 is available at Aetrix Electronics and suitable for industrial automation, telecom infrastructure, medical imaging, and avionics applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant green packaging.
Supply support for 71V124SA15YGI8 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 trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets, with annual revenue exceeding $10 billion and design centers across Asia, Europe, and North America.
The IDT71V124 family - now part of Renesas' legacy high-speed memory portfolio - was engineered specifically for deterministic, low-noise memory interfacing in real-time control and communications equipment where refresh-free operation and JEDEC-standardized pinouts are mandatory.
FAQ
What is the maximum operating frequency supported by the 71V124SA15YGI8?
The 71V124SA15YGI8 does not operate on a clock signal - it is a fully asynchronous static RAM. Its performance is defined by timing parameters: tRC = 15 ns minimum cycle time corresponds to an effective maximum toggle rate of 66.7 MHz on address/control lines. Sustained operation at this rate is validated under industrial conditions with proper load and termination.
Does the 71V124SA15YGI8 require external refresh circuitry?
No, the 71V124SA15YGI8 is a true static RAM and requires no refresh cycles. Its CMOS latch-based memory cells retain data indefinitely as long as VDD remains within 3.15 V–3.6 V and ambient temperature stays within –40°C to +85°C. This eliminates refresh overhead in microcontroller-based systems using the 71V124SA15YGI8 as program/data RAM.
Can the 71V124SA15YGI8 be used with 5 V logic interfaces?
No, the 71V124SA15YGI8 is strictly a 3.3 V LVTTL device. Its absolute maximum input voltage is VDD + 0.5 V (≤4.1 V), and VIH threshold is specified at ≥2.0 V - incompatible with standard 5 V TTL logic levels. Interfacing with 5 V systems requires level-shifting circuitry; direct connection risks damage or metastability in the 71V124SA15YGI8.
What is the meaning of "YGI8" in the part number 71V124SA15YGI8?
In 71V124SA15YGI8, "YG" denotes 400-mil Plastic SOJ package (PBG32), "I" specifies industrial temperature range (–40°C to +85°C), and "8" indicates tape-and-reel packaging format (1,000 units per reel). The full orderable code confirms RoHS-compliant, green, industrial-grade, surface-mount delivery of the 71V124SA15YGI8.
How does the center power/ground pinout of the 71V124SA15YGI8 improve system noise performance?
The 71V124SA15YGI8 places VDD on pins 4 and 24 and GND on pins 13 and 20 - symmetrically centered in the 32-pin SOJ array. This layout halves ground-bounce inductance versus corner-supply packages and equalizes power distribution impedance, reducing simultaneous switching output (SSO) noise by up to 35% in dense backplane designs using the 71V124SA15YGI8.
71V124SA15YGI8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 32-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:
- 1Mbit
- Memory Organization:
- 128K x 8
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 15ns
- Access Time:
- 15 ns
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-SOJ
71V124SA15YGI8 FAQ
1.How can I place an order for 71V124SA15YGI8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 71V124SA15YGI8 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 71V124SA15YGI8 reliable?
The price and inventory of 71V124SA15YGI8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 71V124SA15YGI8 is usually 5 days.
3.What payment methods are accepted for 71V124SA15YGI8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 71V124SA15YGI8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 71V124SA15YGI8?
71V124SA15YGI8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 71V124SA15YGI8 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 71V124SA15YGI8?
For technical support, including 71V124SA15YGI8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 71V124SA15YGI8 requirements.
6.How does Aetrix verify that 71V124SA15YGI8 is sourced from the original manufacturer or authorized distributors?
All 71V124SA15YGI8 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 71V124SA15YGI8 meets industry standards.
7.What is the process for return or replacement of 71V124SA15YGI8?
All 71V124SA15YGI8 units undergo pre-shipment inspection (PSI). If there is an issue with 71V124SA15YGI8, 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 71V124SA15YGI8 part is unused and in its original packaging.
Return procedure for 71V124SA15YGI8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
71V124SA15YGI8 Tags
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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
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AT21CS01-STUM10-T
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AT24C02C-SSHM-T
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24LC01BT-I/OT
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M24C02-FMC6TG
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AT24CS02-SSHM-T
Microchip Technology
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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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