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Renesas 71024S15YG
- Part No.:
- 71024S15YG
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 32-BSOJ (0.400", 10.16mm Width)
- Datasheet:
-
71024S15YG.pdf
- Description:
- IC SRAM 1MBIT PARALLEL 32SOJ
- Quantity:
- Payment:
- Shipping:
Inventory:3,820
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Product details
Overview
71024S15YG from Renesas Electronics is a 128K × 8-bit (1 Mbit) high-speed CMOS static RAM with 15 ns access time, TTL-compatible I/O, single 5 V supply operation, and industrial temperature range (–40°C to +85°C). It features dual chip selects (CS1/CS2), output enable (OE), and bidirectional data I/O for use in embedded controllers, instrumentation buffers, and legacy bus-based systems.
For engineers reviewing the 71024S15YG datasheet, 71024S15YG pinout, 71024S15YG application, or 71024S15YG equivalent, key selection criteria include guaranteed 15 ns read cycle time, low standby current (ISB1 = 10 mA), SOJ-32 400-mil package compatibility, and direct replacement capability in legacy SRAM sockets requiring 128K×8 organization.
Technical Context
The 71024S15YG implements fully static asynchronous architecture-no clocks or refresh required-and uses high-reliability CMOS process technology optimized for stable operation across industrial temperature extremes. Its dual CS inputs support hierarchical memory decoding, while OE enables fast output gating independent of chip select state.
All inputs and outputs are TTL-compatible (VIH = 2.2 V min, VIL = 0.8 V max), and the device supports both WE-controlled and CS-controlled write cycles. Power management includes two standby modes: ISB (TTL-level deselect, 40 mA) and ISB1 (CMOS-level full standby, 10 mA), enabling dynamic power scaling in battery-sensitive applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 128K × 8-bit (1,048,576 bits), byte-wide parallel interface |
| Access Time (tAA) | 15 ns max - determines minimum read latency in CPU or DMA burst transfers |
| Read Cycle Time (tRC) | 15 ns max - sets maximum sustained read throughput (66.7 MHz effective) |
| Supply Voltage | 5.0 V ±10% - compatible with legacy 5 V logic families without level shifting |
| Operating Temperature | –40°C to +85°C - qualified for industrial control, test equipment, and avionics subsystems |
| Standby Current (ISB1) | 10 mA max - enables low-power hold mode during processor sleep or idle states |
| I/O Capacitance | CI/O = 8 pF max - ensures signal integrity on 5 V buses with ≤10 cm trace lengths |
Pinout & Package
71024S15YG is supplied in a 32-pin Plastic SOJ (Small Outline J-Lead) package with 400-mil body width (PBG32), pin pitch of 0.050", and J-bend leads suitable for wave or reflow soldering. The package meets JEDEC MS-012AC and is RoHS-compliant (Green part).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus (A0 LSB to A16 MSB) selects one of 131,072 bytes |
| I/O0–I/O7 | Bidirectional Data Bus | 8-bit TTL-compatible data path; direction controlled by WE and CS states |
| CS1, CS2 | Chip Select Inputs | Active-low decode enables; both must be asserted (CS1=L, CS2=H) for access |
| OE | Output Enable | Active-low control of output drivers; allows shared bus operation without tristate conflicts |
| WE | Write Enable | Active-low signal initiating write cycle; latches data on falling edge when CS active |
| VCC, GND | Power Supply | Single 5 V supply; decoupling required within 1 cm of VCC/GND pair per JEDEC guidelines |
Key Features
| Feature | Design Value |
|---|---|
| 15 ns guaranteed access time | Enables direct interfacing with 66 MHz microcontrollers without wait states |
| Dual chip select architecture | Supports memory banking and hierarchical decoding in multi-peripheral systems |
| Two standby power modes | ISB1 = 10 mA (CMOS-level deselect) reduces idle power vs. ISB = 40 mA (TTL-level) |
| TTL-compatible I/O levels | Eliminates need for level translators when interfacing with 5 V microprocessors or FPGAs |
| Green (lead-free) packaging | PBG32 SOJ meets RoHS Directive 2011/65/EU and JEDEC J-STD-609A Class 3 |
Applications
| Industrial PLC Data Buffer | Legacy Test Equipment Memory |
|---|---|
|
Use Scenario: Storing real-time sensor logs and control setpoints in programmable logic controllers operating at –40°C to +85°C ambient. IC Role / Device Role / Timing Role: Byte-addressable non-refresh SRAM acting as volatile working memory for ladder logic execution engine. Use Value: 15 ns tAA ensures deterministic response to interrupt-driven I/O scans; ISB1 = 10 mA extends uptime in fanless enclosures. |
Use Scenario: Holding calibration tables and waveform capture buffers in automated test instruments with fixed 5 V backplane architecture. IC Role / Device Role / Timing Role: High-reliability static RAM providing glitch-free data storage during analog-to-digital conversion bursts. Use Value: TTL-compatible I/O eliminates level-shifter components; PBG32 SOJ footprint matches legacy board layouts. |
| Avionics Subsystem Cache | Medical Imaging Frame Buffer |
|
Use Scenario: Supporting deterministic boot-time configuration loading and runtime parameter storage in certified airborne computing modules. IC Role / Device Role / Timing Role: Radiation-tolerant (qualified) SRAM used for critical flight control data staging prior to FPGA configuration. Use Value: Industrial temp grade and 100% production-tested AC parameters ensure compliance with DO-254/DO-160 environmental stress requirements. |
Use Scenario: Temporary storage of digitized X-ray or ultrasound frames before compression and transmission in portable diagnostic devices. IC Role / Device Role / Timing Role: Low-latency parallel memory buffer synchronizing ADC output with DSP processing pipeline. Use Value: 15 ns tRC enables full-frame buffering at >60 fps; bidirectional I/O simplifies interface to image processor's parallel bus. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar static RAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY62128EV30LL-45ZSXIT | 5 V, 128K×8, 45 ns access, SOJ-32, industrial temp - slower but higher noise margin | Lower speed tolerance; suitable where timing slack exists and EMI immunity is prioritized | Choose for cost-sensitive industrial designs where 15 ns is not required and layout lacks tight decoupling |
| AS6C1008-15TIN | 5 V, 128K×8, 15 ns access, TSOP-32, industrial temp - same speed, different package | TSOP-32 footprint requires PCB redesign; better thermal performance than SOJ | Choose when upgrading from SOJ to surface-mount assembly and thermal dissipation exceeds 1.25 W |
Compared with CY62128EV30LL-45ZSXIT and AS6C1008-15TIN, the 71024S15YG uniquely retains legacy PBG32 SOJ compatibility while delivering 15 ns performance and dual-CS decode flexibility-critical for drop-in replacements in fielded equipment.
Availability
71024S15YG is available at Aetrix Electronics and suitable for industrial PLC data buffering, legacy test equipment memory upgrades, and avionics subsystem cache applications requiring stable component supply over extended product lifecycles.
Supply support for 71024S15YG 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 headquartered in Tokyo, Japan, specializing in microcontrollers, analog power, and memory solutions for industrial, automotive, and infrastructure markets.
The 71024S15YG belongs to Renesas' legacy high-speed CMOS SRAM product line, designed specifically for reliability-critical, 5 V bus-based systems requiring pin-compatible migration paths from earlier IDT-generation memories.
FAQ
What is the operating voltage range for the 71024S15YG?
The 71024S15YG operates from a single 5.0 V supply with a specified range of 4.5 V to 5.5 V. This 10% tolerance ensures robust compatibility with standard 5 V regulator outputs and legacy logic rails. All DC and AC specifications-including tAA = 15 ns and ISB1 = 10 mA-are guaranteed across this full voltage range and the full industrial temperature span (–40°C to +85°C). The 71024S15YG does not support 3.3 V operation.
Does the 71024S15YG require external refresh circuitry?
No, the 71024S15YG is a fully static RAM and requires no refresh cycles or clocks. Its internal circuitry maintains data indefinitely as long as VCC remains within specification and CS1/CS2 remain inactive during standby. This eliminates timing-critical refresh overhead in microcontroller or FPGA-based systems. The 71024S15YG sustains data retention in ISB1 mode (10 mA) without any external support circuitry.
What is the meaning of the 'YG' suffix in 71024S15YG?
The 'YG' suffix in 71024S15YG indicates a Green (lead-free, RoHS-compliant) device in the 400-mil Plastic SOJ package (PBG32) with Commercial temperature grade (0°C to +70°C). Per Renesas ordering documentation, 'Y' denotes Green process and 'G' specifies PBG32 package. The absence of 'I' after 'YG' confirms Commercial-not Industrial-temperature qualification for this specific orderable part.
Can the 71024S15YG be used as a direct replacement for the 71024S15TYG?
Yes-the 71024S15YG and 71024S15TYG share identical electrical specifications, timing parameters (tAA = 15 ns, tRC = 15 ns), pinout, and PBG32 SOJ-32 package. The only difference is packaging format: 'YG' is supplied in tube packaging, while 'TYG' denotes tape-and-reel. Both are Commercial-grade, Green, 15 ns speed grade parts. No PCB or firmware changes are needed when substituting 71024S15YG for 71024S15TYG.
How does the dual chip select (CS1/CS2) functionality work in the 71024S15YG?
In the 71024S15YG, valid memory access requires CS1 = LOW and CS2 = HIGH simultaneously; any other CS combination places outputs in high-impedance state. This dual-control scheme enables hierarchical decoding-e.g., CS2 may be driven by upper address bits selecting a memory bank, while CS1 is gated by peripheral select logic. The 71024S15YG truth table confirms that only the CS1=L/CS2=H condition permits read/write operations, preventing partial selection glitches.
71024S15YG 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:
- 15ns
- Access Time:
- 15 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-SOJ
71024S15YG FAQ
1.How can I place an order for 71024S15YG through Aetrix?
Please submit a Request for Quotation (RFQ) for 71024S15YG 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 71024S15YG reliable?
The price and inventory of 71024S15YG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 71024S15YG is usually 5 days.
3.What payment methods are accepted for 71024S15YG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 71024S15YG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 71024S15YG?
71024S15YG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 71024S15YG 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 71024S15YG?
For technical support, including 71024S15YG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 71024S15YG requirements.
6.How does Aetrix verify that 71024S15YG is sourced from the original manufacturer or authorized distributors?
All 71024S15YG 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 71024S15YG meets industry standards.
7.What is the process for return or replacement of 71024S15YG?
All 71024S15YG units undergo pre-shipment inspection (PSI). If there is an issue with 71024S15YG, 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 71024S15YG part is unused and in its original packaging.
Return procedure for 71024S15YG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
71024S15YG Tags
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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
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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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