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Renesas 71024S15TYGI
- Part No.:
- 71024S15TYGI
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 32-BSOJ (0.300", 7.62mm Width)
- Datasheet:
-
71024S15TYGI.pdf
- Description:
- IC SRAM 1MBIT PARALLEL 32SOJ
- Quantity:
- Payment:
- Shipping:
Inventory:2,120
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Product details
Overview
71024S15TYGI from Renesas Electronics is a 128K × 8-bit (1 Mbit) high-speed CMOS static RAM with industrial temperature support (–40°C to +85°C), 15 ns access time, TTL-compatible I/O, and dual chip select plus output enable control. It operates from a single 5.0 V ±10% supply and is used in real-time data buffering for industrial controllers and legacy embedded systems requiring deterministic, no-refresh memory.
For engineers reviewing the 71024S15TYGI datasheet, 71024S15TYGI pinout, 71024S15TYGI application, or 71024S15TYGI equivalent, key selection criteria include industrial-grade timing consistency, SOJ-32 package compatibility, low standby current (ISB1 = 10 mA), and direct replacement capability in legacy SRAM-based address/data bus architectures.
Technical Context
The 71024S15TYGI 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 decoding, while OE-controlled output gating supports bus sharing without external transceivers.
All inputs and outputs are TTL-compatible (VIH = 2.2 V min, VIL = 0.8 V max), and bidirectional I/O lines eliminate need for separate data buffers. Power management includes two standby modes: ISB (40 mA, TTL-level deselect) and ISB1 (10 mA, CMOS-level full standby).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 128K × 8-bit (1,048,576 bits); supports byte-wide parallel data interface with A0–A16 addressing. |
| Access Time (tAA) | 15 ns max at VCC = 4.5–5.5 V and TA = –40°C to +85°C; ensures deterministic read latency in hard real-time systems. |
| Supply Voltage | 5.0 V ±10% (4.5–5.5 V); compatible with legacy 5 V TTL/CMOS system rails without level shifting. |
| Standby Current (ISB1) | 10 mA max under full CMOS-level deselect (CS1 ≥ VHC or CS2 ≤ VLC); reduces power in idle states without sacrificing wake-up speed. |
| I/O Capacitance | CI/O = 8 pF max (SOJ package); limits signal integrity degradation on high-speed 5 V buses up to ~33 MHz effective operation. |
| Operating Temperature | –40°C to +85°C industrial grade; qualified for deployment in factory automation, motor drives, and outdoor telecom equipment. |
| Output Enable Delay (tOE) | 7 ns max from OE low-to-valid; enables tight timing control when multiplexing shared data buses with multiple peripherals. |
Pinout & Package
71024S15TYGI is housed in a 32-pin Plastic SOJ (Small Outline J-lead) package with 300-mil body width (PJG32). The package is lead-free and RoHS-compliant per Renesas green part designation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus (A0 LSB to A16 MSB); fully decoded to access all 128K locations. |
| I/O0–I/O7 | Bidirectional Data Lines | 8-bit TTL-compatible data bus; direction controlled by WE and CS states - no external transceivers needed. |
| CS1 | Chip Select 1 (active low) | Primary enable; device selected only when CS1 = L and CS2 = H simultaneously. |
| CS2 | Chip Select 2 (active high) | Secondary enable; forms ANDed selection with CS1 to prevent partial decode glitches. |
| OE | Output Enable (active low) | Gates output drivers; allows read data to appear on I/O lines without affecting write functionality. |
| WE | Write Enable (active low) | Controls write cycle initiation; I/O lines become inputs only when WE = L during valid CS window. |
| VCC | Power Supply | +5.0 V ±10% supply input; decoupling required within 1 inch of pin 24 per layout guidelines. |
| GND | Ground Reference | Signal and power ground return; pin 16 provides dedicated low-inductance path for noise-sensitive operation. |
Key Features
| Feature | Design Value |
|---|---|
| 15 ns industrial-grade access time | Guaranteed across –40°C to +85°C, enabling reliable operation in uncontrolled thermal environments without derating. |
| Dual chip select with AND logic | Eliminates partial selection hazards in multi-SRAM systems; prevents bus contention during address decode transitions. |
| TTL-compatible I/O with no level shifters | Direct interface to 5 V microcontrollers, FPGAs, and ASICs; reduces BOM count and PCB routing complexity. |
| Two-tier standby power control (ISB/ISB1) | 10 mA ultra-low ISB1 mode available when both CS inputs meet CMOS thresholds, optimizing energy in deep-sleep states. |
| SOJ-32 300-mil footprint | Backward-compatible with legacy board designs using IDT71024 family; supports manual rework and automated assembly. |
Applications
| Industrial PLC Data Buffer | Legacy Telecom Line Card Cache |
|---|---|
Use Scenario: Real-time I/O scanning and tag storage in programmable logic controllers where deterministic memory access is required between scan cycles. IC Role / Device Role / Timing Role: Primary non-refresh data buffer interfacing directly to 5 V CPU address/data bus with 15 ns tAA guarantee. Use Value: Eliminates need for DRAM refresh circuitry and associated timing overhead, simplifying firmware and improving worst-case response predictability. |
Use Scenario: Frame header caching and protocol translation lookup in TDM-based line cards operating in temperature-variable central office environments. IC Role / Device Role / Timing Role: High-reliability, pin-compatible SRAM replacing obsolete 71024 variants in field-deployed telecom hardware. Use Value: Industrial temperature rating and 10 mA ISB1 current ensure stable operation during extended ambient excursions without thermal throttling. |
| Avionics Maintenance Terminal Memory | Medical Imaging Control FIFO |
Use Scenario: Storing diagnostic logs and configuration snapshots in portable avionics test equipment subjected to wide thermal cycling and vibration. IC Role / Device Role / Timing Role: Non-volatile-supporting volatile memory with fast OE-controlled read bursts for UI responsiveness. Use Value: SOJ-32 mechanical robustness and guaranteed 15 ns timing across –40°C to +85°C reduce field failure risk versus commercial-grade alternatives. |
Use Scenario: Temporary pixel metadata buffering in ultrasound or X-ray controller boards where burst-mode data transfers must avoid pipeline stalls. IC Role / Device Role / Timing Role: Synchronous read/write-capable SRAM acting as first-stage FIFO between ADC interface and DSP engine. Use Value: Bidirectional I/O and 7 ns tOE allow sub-cycle data handoff, increasing effective throughput without adding handshake logic. |
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-45ZAXI | 512K × 8-bit (4 Mbit), 45 ns access, 3.3 V core (with 5 V tolerant I/O), TSOP-II-32 package. | Higher density but slower speed; requires voltage translation if interfacing exclusively with 5 V logic. | Select when system needs >128K capacity and can accept longer access latency; not drop-in due to voltage and timing mismatch. |
| AS6C1008-15ZIN | 128K × 8-bit, 15 ns access, 5 V operation, SOJ-32 (PDSO32), industrial temp (–40°C to +85°C). | Functionally identical organization, timing, and package; pinout matches 71024S15TYGI exactly per datasheet comparison. | Valid pin-compatible alternative with same footprint, timing, and electrical behavior - suitable for second-source qualification. |
Compared with CY62128EV30LL-45ZAXI and AS6C1008-15ZIN, the 71024S15TYGI offers proven legacy integration in 5 V-only systems, while AS6C1008-15ZIN provides a verified second source with identical timing and SOJ-32 pinout, whereas CY62128EV30LL-45ZAXI trades speed for density and introduces voltage interface complexity.
Availability
71024S15TYGI is available at Aetrix Electronics and suitable for industrial PLCs, legacy telecom line cards, avionics maintenance terminals, and medical imaging controllers requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for 71024S15TYGI 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, infrastructure, and IoT applications.
The 71024S15TYGI belongs to Renesas' legacy high-speed CMOS SRAM product line, designed specifically for reliability-critical 5 V embedded systems requiring deterministic, no-refresh memory performance in harsh thermal environments.
FAQ
What is the maximum clock-equivalent frequency supported by the 71024S15TYGI?
The 71024S15TYGI is an asynchronous SRAM and does not use a clock. Its 15 ns access time supports effective bus operation up to approximately 33 MHz in systems where address setup and hold times are met. Actual system frequency depends on controller timing margins and board-level signal integrity - the 71024S15TYGI itself imposes no clock requirement.
Does the 71024S15TYGI require external refresh circuitry?
No. The 71024S15TYGI is a fully static RAM using CMOS latches for data storage; it retains data indefinitely as long as power is applied and does not require periodic refresh cycles. This eliminates refresh overhead in firmware and simplifies system design compared to DRAM solutions - a core feature of the 71024S15TYGI.
Is the 71024S15TYGI pin-compatible with earlier speed grades like 71024S12TYGI?
Yes. All 71024SxxTYGI variants (12 ns, 15 ns, 20 ns) share identical pinout, package (PJG32 SOJ-32), and functional interface. The only differences are timing parameters and corresponding ICC/ISB values - the 71024S15TYGI may be substituted into 12 ns designs if timing裕度 allows, though setup/hold margins must be re-verified.
What does the "TYG" suffix indicate in the 71024S15TYGI part number?
In the 71024S15TYGI ordering code, "T" denotes tape-and-reel packaging, "Y" specifies the 300-mil SOJ (PJG32) package, and "G" indicates RoHS-compliant green construction. The final "I" confirms industrial temperature range (–40°C to +85°C). Thus, 71024S15TYGI is a green, tape-and-reel, 300-mil SOJ, industrial-grade 15 ns SRAM.
Can the 71024S15TYGI operate reliably at 4.5 V supply?
Yes. The 71024S15TYGI is specified for VCC = 4.5 V to 5.5 V across its full industrial temperature range. At 4.5 V, all AC parameters (including tAA = 15 ns max) and DC characteristics (VOH ≥ 2.4 V, VOL ≤ 0.4 V) remain guaranteed per the datasheet - making the 71024S15TYGI suitable for brown-out resilient 5 V systems.
71024S15TYGI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 32-BSOJ (0.300", 7.62mm Width)
- Packaging:
- Tube
- 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
71024S15TYGI FAQ
1.How can I place an order for 71024S15TYGI through Aetrix?
Please submit a Request for Quotation (RFQ) for 71024S15TYGI 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 71024S15TYGI reliable?
The price and inventory of 71024S15TYGI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 71024S15TYGI is usually 5 days.
3.What payment methods are accepted for 71024S15TYGI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 71024S15TYGI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 71024S15TYGI?
71024S15TYGI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 71024S15TYGI 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 71024S15TYGI?
For technical support, including 71024S15TYGI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 71024S15TYGI requirements.
6.How does Aetrix verify that 71024S15TYGI is sourced from the original manufacturer or authorized distributors?
All 71024S15TYGI 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 71024S15TYGI meets industry standards.
7.What is the process for return or replacement of 71024S15TYGI?
All 71024S15TYGI units undergo pre-shipment inspection (PSI). If there is an issue with 71024S15TYGI, 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 71024S15TYGI part is unused and in its original packaging.
Return procedure for 71024S15TYGI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
71024S15TYGI Tags
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