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Renesas 71024S15TYGI8
- Part No.:
- 71024S15TYGI8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 32-BSOJ (0.300", 7.62mm Width)
- Datasheet:
-
71024S15TYGI8.pdf
- Description:
- IC SRAM 1MBIT PARALLEL 32SOJ
- Quantity:
- Payment:
- Shipping:
Inventory:500
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Product details
Overview
71024S15TYGI8 from Renesas Electronics is a 128K × 8-bit (1 Mbit) high-speed CMOS static RAM with industrial temperature range (–40°C to +85°C), 15 ns access time, single 5V supply operation, and TTL-compatible bidirectional I/O. It serves as main or cache memory in embedded controllers, industrial PLCs, and legacy communication interface buffers requiring deterministic, no-refresh asynchronous operation.
For engineers reviewing the 71024S15TYGI8 datasheet, 71024S15TYGI8 pinout, 71024S15TYGI8 application, or 71024S15TYGI8 equivalent, key selection criteria include verified 15 ns tAA/tRC timing at industrial temperature, dual chip select architecture for bank decoding, OE-controlled output enable with 7 ns tOE, and SOJ-32 (300-mil) package compatibility with legacy board layouts.
Technical Context
The 71024S15TYGI8 implements fully static asynchronous logic with no clocks or refresh cycles required. Its dual CS architecture (CS1 active-low, CS2 active-high) enables hierarchical memory mapping, while OE allows independent output gating without affecting internal state.
All inputs and outputs are TTL-compatible (VIH = 2.2 V min, VIL = 0.8 V max), and the device supports three power states: active read/write (ICC = 155 mA max), standby with TTL-level CS deselect (ISB = 40 mA), and full CMOS standby (ISB1 = 10 mA) - critical for low-power industrial hold modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 128K × 8-bit (1,048,576 bits); supports byte-wide data bus interfacing without external demultiplexing |
| Access Time (tAA) | 15 ns max at VCC = 4.5–5.5 V, TA = –40°C to +85°C; guarantees deterministic latency for real-time control loops |
| Supply Voltage | 5.0 V ± 10% (4.5–5.5 V); compatible with legacy 5V TTL/CMOS system rails without level shifting |
| Operating Temperature | –40°C to +85°C industrial grade; validated for deployment in uncontrolled industrial enclosures and outdoor base stations |
| Standby Current (ISB1) | 10 µA max in full CMOS standby (CS1 ≥ VHC or CS2 ≤ VLC); enables ultra-low-power sleep modes in battery-backed systems |
| Output Enable Delay (tOE) | 7 ns max from OE low-to-valid; ensures tight timing alignment with microcontroller wait-state generators |
| Package | 32-pin Plastic SOJ, 300-mil width (PJG32); matches footprint of legacy IDT71024 variants for drop-in replacement |
Pinout & Package
32-pin Plastic SOJ (300-mil width, PJG32 package) with gull-wing leads; JEDEC-standard pinout optimized for high-density PCB layout and thermal dissipation in industrial modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus supporting full 128K address space; A16 is MSB for 128K boundary |
| I/O0–I/O7 | Bidirectional Data Bus | 8-bit TTL-compatible data path; direction controlled by WE and CS states - no external transceivers needed |
| CS1, CS2 | Chip Select Inputs | CS1 active-low, CS2 active-high; dual-enable logic allows bank selection or hierarchical decode without glue logic |
| OE | Output Enable | Active-low; gates outputs independently of CS/WE, enabling shared-bus arbitration and glitch-free read bursts |
| WE | Write Enable | Active-low; initiates write cycle when CS1 low & CS2 high; controls data latch timing per tWP (12 ns min) |
| VCC, GND | Power Supply | Single 5V supply with dedicated VCC/GND pair; decoupling required within 10 mm for stable 15 ns operation |
Key Features
| Feature | Design Value |
|---|---|
| Fully static asynchronous operation | No clocks, no refresh cycles - eliminates timing jitter and simplifies system clock tree design |
| Dual chip select architecture | CS1 (active-low) + CS2 (active-high) enables flexible memory banking and reduces external decode logic count |
| TTL-compatible I/O | Direct interface with 5V microcontrollers, FPGAs, and ASICs without level translators or pull-up resistors |
| Three-tier power management | Active (155 mA), TTL standby (40 mA), and CMOS standby (10 mA) modes support dynamic power scaling in industrial firmware |
| Industrial-grade reliability | Qualified per Renesas industrial temp spec (–40°C to +85°C); 100% tested for tAA, tRC, and ISB1 at temperature extremes |
Applications
| Industrial PLC Memory Buffer | Legacy Communication Interface Cache |
|---|---|
|
Use Scenario: Real-time I/O scan buffering in programmable logic controllers where deterministic memory access prevents scan-time jitter. IC Role / Device Role / Timing Role: Asynchronous SRAM providing zero-wait-state data storage for input/output image tables and intermediate logic results. Use Value: 15 ns tAA ensures sub-20 ns worst-case read latency across full industrial temperature range, meeting IEC 61131-3 cycle time requirements. |
Use Scenario: Packet buffering in RS-485/Modbus gateways handling bursty serial traffic between field devices and SCADA hosts. IC Role / Device Role / Timing Role: Byte-wide FIFO buffer staging incoming/outgoing protocol frames before DMA transfer to host processor. Use Value: Dual CS pins allow seamless integration with UART controller address decoding, eliminating external address latches. |
| Embedded Controller Boot ROM Shadow | Test Equipment Pattern Memory |
|
Use Scenario: Shadowing slower parallel NOR flash during boot sequence in ruggedized edge controllers deployed in remote substations. IC Role / Device Role / Timing Role: High-speed volatile copy of boot code executed directly from SRAM to accelerate startup and avoid flash wear. Use Value: OE-controlled output enable permits concurrent flash read and SRAM execution via bus multiplexing, reducing BOM count. |
Use Scenario: Storing digital stimulus/response patterns in automated test equipment for semiconductor wafer probing. IC Role / Device Role / Timing Role: Deterministic-access pattern store synchronized to precision timing generator clocks. Use Value: Guaranteed 15 ns tRC across –40°C to +85°C ensures consistent pattern delivery timing despite ambient thermal drift. |
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 | 128K × 8, 45 ns access, 3.3 V supply, TSOP-32; lower speed, different voltage domain | Requires level-shifting for 5V systems; suited for newer 3.3V designs with relaxed timing | Select only if migrating to 3.3V architecture and timing budget allows ≥45 ns latency |
| AS6C1008-15PCN | 128K × 8, 15 ns access, 5 V supply, SOJ-32; same speed/temp but higher ICC (180 mA vs. 155 mA) | Higher active current increases thermal load in sealed enclosures; identical pinout and timing | Valid drop-in alternative if board thermal margin accommodates +25 mA peak supply draw |
Compared with CY62128EV30LL-45ZSXIT and AS6C1008-15PCN, the 71024S15TYGI8 uniquely delivers 15 ns performance at 5V in industrial temperature range with lowest ISB1 (10 mA), making it optimal for thermally constrained, legacy 5V systems requiring minimal standby leakage.
Availability
71024S15TYGI8 is available at Aetrix Electronics and suitable for industrial PLC memory buffers, legacy communication interface caches, and embedded controller boot ROM shadowing requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 71024S15TYGI8 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 IoT applications.
The 71024S15TYGI8 belongs to Renesas' legacy high-speed CMOS SRAM product line, designed specifically for deterministic, no-refresh memory interfacing in industrial control and communications infrastructure where 5V compatibility and industrial temperature resilience are mandatory.
FAQ
What is the operating temperature range certified for the 71024S15TYGI8?
71024S15TYGI8 is specified for industrial temperature operation from –40°C to +85°C. All AC parameters-including tAA (15 ns), tRC (15 ns), and ISB1 (10 mA)-are guaranteed across this full range per Renesas datasheet revision Mar. 30, 2021. No derating is required for thermal performance compliance.
Does the 71024S15TYGI8 require external refresh circuitry or clocks?
No, the 71024S15TYGI8 uses fully static CMOS design with no clocks or refresh cycles required. Its asynchronous operation means data retention is maintained indefinitely as long as VCC is applied and CS lines remain inactive-making it ideal for fail-safe industrial memory applications where timing predictability is critical.
Is the 71024S15TYGI8 pin-compatible with earlier IDT71024 speed grades?
Yes, the 71024S15TYGI8 shares identical 32-pin SOJ-300 (PJG32) pinout and signal definitions with all IDT71024 variants including 71024S12TYGI8 and 71024S20TYGI8. Address, data, control, and power pins map one-to-one, enabling direct substitution where timing margins permit.
What is the minimum write pulse width (tWP) specification for the 71024S15TYGI8?
The 71024S15TYGI8 requires a minimum write pulse width (tWP) of 12 ns under industrial conditions (VCC = 4.5–5.5 V, TA = –40°C to +85°C). This value is production-tested and guaranteed, ensuring reliable data capture during high-speed write cycles without setup/hold violations.
How does the dual chip select (CS1/CS2) architecture of the 71024S15TYGI8 improve system design?
The 71024S15TYGI8's CS1 (active-low) and CS2 (active-high) inputs allow hierarchical memory decoding-for example, using CS1 for board-level selection and CS2 for slot-level enable-reducing external logic gates. This architecture also supports "chip enable windowing" to isolate memory regions during debug or partial reconfiguration scenarios.
71024S15TYGI8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 32-BSOJ (0.300", 7.62mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-SOJ
71024S15TYGI8 FAQ
1.How can I place an order for 71024S15TYGI8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 71024S15TYGI8 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 71024S15TYGI8 reliable?
The price and inventory of 71024S15TYGI8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 71024S15TYGI8 is usually 5 days.
3.What payment methods are accepted for 71024S15TYGI8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 71024S15TYGI8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 71024S15TYGI8?
71024S15TYGI8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 71024S15TYGI8 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 71024S15TYGI8?
For technical support, including 71024S15TYGI8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 71024S15TYGI8 requirements.
6.How does Aetrix verify that 71024S15TYGI8 is sourced from the original manufacturer or authorized distributors?
All 71024S15TYGI8 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 71024S15TYGI8 meets industry standards.
7.What is the process for return or replacement of 71024S15TYGI8?
All 71024S15TYGI8 units undergo pre-shipment inspection (PSI). If there is an issue with 71024S15TYGI8, 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 71024S15TYGI8 part is unused and in its original packaging.
Return procedure for 71024S15TYGI8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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