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Renesas 71V124SA15TYGI
- Part No.:
- 71V124SA15TYGI
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 32-BSOJ (0.300", 7.62mm Width)
- Datasheet:
-
71V124SA15TYGI.pdf
- Description:
- IC SRAM 1MBIT PARALLEL 32SOJ
- Quantity:
- Payment:
- Shipping:
Inventory:3,567
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Product details
Overview
71V124SA15TYGI 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 main or buffer memory in real-time control systems requiring deterministic, clockless data access.
For engineers reviewing the 71V124SA15TYGI datasheet, 71V124SA15TYGI pinout, 71V124SA15TYGI application, or 71V124SA15TYGI equivalent, key selection criteria include access timing consistency, low-noise center-GND layout compatibility, standby current under deselect, TSOP/SOJ package footprint constraints, and industrial-grade reliability without refresh overhead.
Technical Context
The 71V124SA15TYGI implements fully static asynchronous architecture-no clocks, no refresh cycles-enabling seamless integration into legacy bus-based controllers and FPGA co-processor interfaces. Its dual-control logic uses independent Chip Select (CS) and Output Enable (OE) pins to decouple memory enable from data gating, supporting both CS-driven and OE-driven read protocols.
JEDEC-standard center power/ground pinout (VDD on Pin 24 & 25, GND on Pin 13 & 20) minimizes simultaneous switching noise and improves signal integrity in dense PCB layouts. All inputs and outputs meet LVTTL voltage thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V) and drive capability (IOH = –4 mA, IOL = 8 mA) at 3.3 V.
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) | 15 ns max; guarantees data valid within 15 ns of stable address + CS assertion-critical for tight-loop real-time firmware. |
| Supply Voltage | 3.15 V to 3.6 V; compatible with standard 3.3 V LVTTL rails and tolerant of ±5% regulation drift. |
| Operating Temperature | –40°C to +85°C; qualified for industrial environments including motor drives and factory automation nodes. |
| Standby Current (ISB1) | 10 µA max (static full standby); enables ultra-low-power sleep modes in battery-backed or energy-constrained systems. |
| I/O Capacitance | CI/O = 7 pF (SOJ package); limits trace loading and preserves signal rise/fall times on high-speed buses. |
| Output Enable Delay (tOE) | 7 ns max; ensures rapid data visibility after OE activation-essential for burst-mode or handshake-controlled reads. |
Pinout & Package
71V124SA15TYGI is supplied in a 32-pin 300-mil Plastic SOJ (PJG32) package with JEDEC-standard center-power/ground layout. This package supports wave soldering and offers mechanical robustness for industrial board assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus; selects one of 131,072 bytes (128K) in linear memory space. |
| I/O0–I/O7 | Bidirectional Data Bus | 8-bit LVTTL-compatible data path; direction controlled by WE and CS states per truth table. |
| CS | Chip Select | Active-low global enable; places device in active or high-Z standby based on level-not edge-triggered. |
| OE | Output Enable | Active-low output gate; allows read data to appear on I/O lines independently of CS state. |
| WE | Write Enable | Active-low write strobe; initiates write cycle when CS is low; controls data latching timing. |
| VDD (Pins 24, 25) | Power Supply | Dual 3.3 V supply pins placed centrally to reduce IR drop and ground bounce across array. |
| GND (Pins 13, 20) | Ground Reference | Dual ground pins symmetrically positioned to minimize loop inductance and improve noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| No refresh required | Fully static CMOS design eliminates DRAM-style refresh circuitry, simplifying controller firmware and reducing system jitter. |
| Center power/ground pinout | JEDEC-compliant VDD/GND placement reduces simultaneous switching noise by >30% versus corner-pin SOJ layouts. |
| Low standby current | 10 µA ISB1 enables multi-day battery backup in SRAM-cached real-time clocks or configuration storage. |
| LVTTL interface compliance | Direct interoperability with FPGA I/O banks, microcontroller data buses, and ASIC glue logic without level-shifting. |
| Industrial temperature grade | Validated operation from –40°C to +85°C ensures reliability in uncontrolled enclosures and outdoor equipment. |
Applications
| Industrial PLC Memory Buffer | Medical Imaging Frame Store |
|---|---|
Use Scenario: Storing intermediate scan-line buffers and register shadow copies in programmable logic controller backplanes. IC Role / Device Role / Timing Role: Asynchronous byte-wide scratchpad memory accessed directly by ARM9 or ColdFire CPU via local bus without wait states. Use Value: 15 ns tAA and tRC enable deterministic <1 µs context-switch latency between ladder logic tasks and I/O scan cycles. | Use Scenario: Holding uncompressed 8-bit grayscale pixel rows during real-time ultrasound beamforming. IC Role / Device Role / Timing Role: High-reliability frame buffer interfaced to custom ASIC DMA engine with burst-read capability. Use Value: Center-GND pinout suppresses EMI-induced bit errors during RF pulse transmission windows. |
| Avionics Data Logger Cache | Railway Signaling Event Recorder |
Use Scenario: Capturing GPS timestamps, sensor telemetry, and fault flags in flight data recorders with extended thermal cycling. IC Role / Device Role / Timing Role: Non-volatile cache holding last 30 seconds of critical parameters before flash write. Use Value: –40°C to +85°C rating and 10 µA ISB1 support continuous logging during cold-soak ground tests and hot runway operations. | Use Scenario: Recording interlocking logic state transitions and track circuit occupancy events in EN 5012x-certified signaling cabinets. IC Role / Device Role / Timing Role: Deterministic memory node synchronized to 25 MHz safety clock domain via external address latch. Use Value: No-refresh operation prevents timing violations during EMC immunity testing (IEC 61000-4-3/4-4). |
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-45ZSXIT | 45 ns access, 5 V tolerant, 32-pin TSOP II, 128K × 8, but requires 4.5–5.5 V supply. | Not suitable for 3.3 V-only systems; higher power draw limits use in thermally constrained rail-side enclosures. | Select only if legacy 5 V bus architecture mandates voltage compatibility over speed. |
| AS6C1008-15TIN | 15 ns access, 3.3 V, 32-pin TSOP II, same organization-but no center-GND pinout and higher ICC (120 mA vs. 100 mA). | Increased switching noise may require additional decoupling in EMI-sensitive medical or avionics designs. | Prefer where TSOP II footprint is mandatory and noise margin analysis confirms adequacy. |
Compared with CY62128EV30LL-45ZSXIT and AS6C1008-15TIN, the 71V124SA15TYGI uniquely combines 15 ns performance, industrial temperature range, center-GND noise reduction, and 3.3 V LVTTL compatibility in a SOJ package-making it optimal for new designs prioritizing signal integrity and thermal resilience.
Availability
71V124SA15TYGI is available at Aetrix Electronics and suitable for industrial PLC memory buffers, medical imaging frame stores, avionics data logger caches, railway signaling event recorders, and real-time control subsystems requiring stable component supply across extended product lifecycles.
Supply support for 71V124SA15TYGI 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 applications.
The IDT71V124 family-now part of Renesas' legacy high-speed memory portfolio-was engineered specifically for deterministic, low-latency, no-refresh memory needs in real-time industrial and communications equipment.
FAQ
What is the maximum operating frequency supported by the 71V124SA15TYGI?
The 71V124SA15TYGI does not operate on a clock; it is an asynchronous SRAM. Its 15 ns read/write cycle time (tRC) implies reliable operation up to approximately 66.7 MHz in burst-address mode, assuming zero wait states and ideal bus timing margins. Actual system throughput depends on controller setup/hold timing and bus arbitration latency-not internal clocking.
Does the 71V124SA15TYGI require external refresh circuitry?
No, the 71V124SA15TYGI is a fully static CMOS SRAM and requires no refresh cycles or clocks. Data retention is indefinite as long as VDD remains within specification (3.15–3.6 V) and temperature stays within –40°C to +85°C. This eliminates refresh-related jitter and firmware overhead in real-time systems.
Can the 71V124SA15TYGI be used with a 5 V microcontroller bus?
No-the 71V124SA15TYGI is strictly a 3.3 V LVTTL device. Its absolute maximum input voltage is VDD + 0.5 V (≤ 4.1 V), and VIH minimum is 2.0 V. Direct connection to 5 V logic violates DC ratings and risks permanent damage. Level translation (e.g., TXB0108) is mandatory for mixed-voltage interfacing.
What is the significance of the "TYGI" suffix in 71V124SA15TYGI?
In the 71V124SA15TYGI ordering code, "TY" denotes 300-mil Plastic SOJ package (PJG32), "G" indicates green (halogen-free/RoHS-compliant) construction, and "I" specifies industrial temperature range (–40°C to +85°C). The full suffix confirms this unit is a RoHS-compliant, industrial-grade SOJ variant of the 15 ns speed grade.
How does the center power/ground pinout improve noise performance in the 71V124SA15TYGI?
The center power/ground pinout (VDD on Pins 24/25, GND on Pins 13/20) shortens current return paths and balances supply/ground inductance across the die. This reduces simultaneous switching output (SSO) noise by minimizing ground bounce and supply droop during high-speed I/O transitions-verified in Renesas' application notes for industrial backplane designs.
71V124SA15TYGI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 32-BSOJ (0.300", 7.62mm 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:
- 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
71V124SA15TYGI FAQ
1.How can I place an order for 71V124SA15TYGI through Aetrix?
Please submit a Request for Quotation (RFQ) for 71V124SA15TYGI 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 71V124SA15TYGI reliable?
The price and inventory of 71V124SA15TYGI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 71V124SA15TYGI is usually 5 days.
3.What payment methods are accepted for 71V124SA15TYGI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 71V124SA15TYGI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 71V124SA15TYGI?
71V124SA15TYGI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 71V124SA15TYGI 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 71V124SA15TYGI?
For technical support, including 71V124SA15TYGI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 71V124SA15TYGI requirements.
6.How does Aetrix verify that 71V124SA15TYGI is sourced from the original manufacturer or authorized distributors?
All 71V124SA15TYGI 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 71V124SA15TYGI meets industry standards.
7.What is the process for return or replacement of 71V124SA15TYGI?
All 71V124SA15TYGI units undergo pre-shipment inspection (PSI). If there is an issue with 71V124SA15TYGI, 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 71V124SA15TYGI part is unused and in its original packaging.
Return procedure for 71V124SA15TYGI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
71V124SA15TYGI Tags
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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
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AT21CS01-STUM10-T
Microchip Technology
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AT24C02C-SSHM-T
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24LC01BT-I/OT
Microchip Technology
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M24C02-FMC6TG
STMicroelectronics
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AT24CS02-SSHM-T
Microchip Technology
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93LC46BT-I/OT
Microchip Technology
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AT24C04C-SSHM-T
Microchip Technology
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24LC01BT-I/SN
Microchip Technology
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24AA02UIDT-I/OT
Microchip Technology
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AT24C08C-STUM-T
Microchip Technology
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