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Renesas 71024S12TYG8
- Part No.:
- 71024S12TYG8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 32-BSOJ (0.300", 7.62mm Width)
- Datasheet:
-
71024S12TYG8.pdf
- Description:
- IC SRAM 1MBIT PARALLEL 32SOJ
- Quantity:
- Payment:
- Shipping:
Inventory:3,854
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Product details
Overview
71024S12TYG8 from Renesas Electronics is a 128K × 8-bit (1 Mbit) high-speed CMOS static RAM with 12 ns access time, TTL-compatible I/O, single 5 V supply operation, and industrial-grade temperature range (–40°C to +85°C). It serves as fast, fully static main or cache memory in embedded controllers, network packet buffers, and real-time data acquisition systems.
For engineers reviewing the 71024S12TYG8 datasheet, 71024S12TYG8 pinout, 71024S12TYG8 application, or 71024S12TYG8 equivalent, key selection criteria include guaranteed 12 ns read cycle time, dual chip select architecture with independent OE control, low-power standby modes (ISB1 = 10 mA), and SOJ-32 (300-mil) package compatibility for legacy board designs.
Technical Context
The 71024S12TYG8 implements fully asynchronous static RAM logic with no clocks or refresh required. Its dual CS architecture (CS1 active-low, CS2 active-high) enables hierarchical memory decoding, while the dedicated OE pin allows output gating independent of chip selection - supporting bus-sharing in multi-master systems.
All inputs and outputs are TTL-compatible (VIH = 2.2 V min, VIL = 0.8 V max), and bidirectional I/O lines operate with VOH ≥ 2.4 V at –4 mA and VOL ≤ 0.4 V at 8 mA. Power management includes two standby states: 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), byte-wide parallel interface |
| Access Time (tAA) | 12 ns max - enables CPU wait-state-free operation up to ~66 MHz bus frequency |
| Read Cycle Time (tRC) | 12 ns min - defines minimum consecutive read interval without address hold violation |
| Supply Voltage | 5.0 V ± 10% (4.5–5.5 V) - compatible with legacy 5 V TTL/CMOS system rails |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments without derating |
| Standby Current (ISB1) | 10 mA max - supports low-power sleep modes in battery-backed or energy-sensitive systems |
| I/O Compatibility | TTL input thresholds and output drive - interoperable with 74LS, 74F, and microcontroller GPIOs |
Pinout & Package
71024S12TYG8 is housed in a 32-pin Plastic Small Outline J-Lead (SOJ) package, 300 mil body width (PJG32), with gull-wing leads and standard JEDEC MO-089A outline.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus (217 = 131,072 locations); A16 selects upper/lower half of 128K space |
| I/O0–I/O7 | Bidirectional Data Bus | 8-bit parallel data path; direction controlled by WE and CS states |
| CS1, CS2 | Chip Select Inputs | CS1 active-low + CS2 active-high required for enable; supports hierarchical decode |
| OE | Output Enable | Active-low; gates outputs independently of CS - enables shared-bus arbitration |
| WE | Write Enable | Active-low; controls write cycle timing and data latching on rising edge of WE |
| VCC, GND | Power Supply | Single 5 V supply; decoupling required per JEDEC SOJ layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Fully static asynchronous operation | No clocks, timers, or refresh cycles needed - simplifies timing design and reduces system overhead |
| Dual chip select with independent OE | Enables memory banking and bus sharing without external logic or glue logic |
| 12 ns guaranteed access time | Supports direct interfacing with 66 MHz microcontrollers (e.g., Intel 80386EX, Motorola 683xx) without wait states |
| Two standby power modes | ISB1 = 10 mA (CMOS-level deselect) enables ultra-low-power retention in battery-backed applications |
| TTL-compatible I/O | Eliminates level-shifting requirements when interfacing with legacy 5 V logic families |
Applications
| Industrial PLC Data Buffer | Legacy Network Interface Card (NIC) |
|---|---|
Use Scenario: Real-time I/O scan buffer storing sensor inputs and actuator commands in programmable logic controllers operating in factory-floor environments. IC Role / Device Role / Timing Role: High-reliability, byte-accessible scratchpad memory holding cyclic process data with deterministic 12 ns read latency. Use Value: Industrial temperature rating (–40°C to +85°C) and 10 mA ISB1 ensure stable operation during thermal cycling and brownout conditions. | Use Scenario: Packet descriptor and frame buffer memory in 10/100 Mbps Ethernet NICs based on older ASICs requiring 5 V parallel SRAM. IC Role / Device Role / Timing Role: Low-latency, non-refreshing storage for transmit/receive descriptors and partial frames during DMA transfers. Use Value: Dual CS architecture allows clean integration with ISA or PCI local bus controllers using minimal address decode logic. |
| Medical Imaging Front-End | Avionics Display Controller Buffer |
Use Scenario: Pixel line buffer in ultrasound or digital X-ray front-end modules where deterministic access timing prevents image artifacts. IC Role / Device Role / Timing Role: Synchronous pixel-data staging memory synchronized to ADC sampling clock via external control logic. Use Value: Guaranteed 12 ns tAA and 6 ns tOE support sub-microsecond pixel pipeline handoffs without FIFO insertion. | Use Scenario: Frame buffer memory in ruggedized cockpit display units requiring long-term reliability and radiation-tolerant behavior. IC Role / Device Role / Timing Role: Non-volatile-cached display memory holding GUI bitmaps and status overlays during flight-critical operations. Use Value: Fully static design eliminates refresh-induced glitches; SOJ-32 package supports conformal coating and mechanical shock resistance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed parallel SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY62128EV30LL-12ZSXIT | 5 V, 128K × 8, 12 ns, SOJ-32, but uses single active-low CS and no CS2; lower ISB1 (5 mA) | Lacks dual-CS decode flexibility; better suited for simple memory-mapped peripherals than hierarchical systems | Select when board layout already uses single-CS decode and lowest possible standby current is critical |
| AS6C1008-12TIN | 5 V, 128K × 8, 12 ns, SOJ-32, identical pinout, but OE is not independent - tied to CS function | Cannot gate outputs independently of chip select; limits bus-sharing capability in multi-device systems | Select only for drop-in replacement where OE independence is unused and existing layout matches AS6C1008 footprint |
Compared with CY62128EV30LL-12ZSXIT and AS6C1008-12TIN, the 71024S12TYG8 uniquely supports true three-signal decode (CS1, CS2, OE), enabling robust bus arbitration and memory banking in complex embedded controllers without additional logic.
Availability
71024S12TYG8 is available at Aetrix Electronics and suitable for industrial PLC data buffering, legacy network interface cards, medical imaging front-ends, and avionics display controller buffers requiring stable component supply across extended product lifecycles.
Supply support for 71024S12TYG8 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 infrastructure markets.
The 71024S12TYG8 belongs to Renesas' legacy high-speed parallel SRAM product line, designed specifically for pin-compatible replacement and long-lifecycle support in mission-critical industrial and communications equipment.
FAQ
What is the operating voltage range for the 71024S12TYG8?
The 71024S12TYG8 operates from a single 5 V supply with a specified range of 4.5 V to 5.5 V (±10%). This ensures compatibility with standard TTL/CMOS 5 V system rails and accommodates typical power supply tolerances in industrial designs. The 71024S12TYG8 does not support 3.3 V or mixed-voltage operation.
Does the 71024S12TYG8 require refresh circuitry or clock signals?
No, the 71024S12TYG8 is a fully static RAM and requires no refresh cycles, clocks, or timing generators. Its internal latches retain data indefinitely as long as power is applied and valid address/control signals are maintained. This eliminates complexity in timing-critical or low-power systems where the 71024S12TYG8 is deployed.
What is the meaning of the 'TYG8' suffix in 71024S12TYG8?
In the 71024S12TYG8 ordering code, 'T' denotes tape-and-reel packaging, 'Y' specifies the 300-mil SOJ (PJG32) package, 'G' indicates green (lead-free/RoHS-compliant) construction, and '8' identifies the tube vs. tape-and-reel variant - here confirming tape-and-reel delivery format per Renesas' ordering documentation.
Can the 71024S12TYG8 be used in commercial-temperature applications?
Yes, although the 71024S12TYG8 is marked for industrial temperature range (–40°C to +85°C), it is fully functional across the commercial range (0°C to +70°C) and all intermediate temperatures. Its industrial qualification ensures margin and reliability in commercial applications, especially where extended ambient stability is required.
How does the dual chip select (CS1/CS2) architecture of the 71024S12TYG8 improve system design?
The dual CS architecture (CS1 active-low, CS2 active-high) in the 71024S12TYG8 enables hierarchical memory decoding - for example, using CS2 to select a memory bank and CS1 to enable individual devices within it. This reduces external logic, supports memory expansion, and improves noise immunity compared to single-CS schemes, making the 71024S12TYG8 ideal for modular embedded controllers.
71024S12TYG8 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:
- 12ns
- Access Time:
- 12 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
71024S12TYG8 FAQ
1.How can I place an order for 71024S12TYG8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 71024S12TYG8 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 71024S12TYG8 reliable?
The price and inventory of 71024S12TYG8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 71024S12TYG8 is usually 5 days.
3.What payment methods are accepted for 71024S12TYG8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 71024S12TYG8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 71024S12TYG8?
71024S12TYG8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 71024S12TYG8 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 71024S12TYG8?
For technical support, including 71024S12TYG8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 71024S12TYG8 requirements.
6.How does Aetrix verify that 71024S12TYG8 is sourced from the original manufacturer or authorized distributors?
All 71024S12TYG8 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 71024S12TYG8 meets industry standards.
7.What is the process for return or replacement of 71024S12TYG8?
All 71024S12TYG8 units undergo pre-shipment inspection (PSI). If there is an issue with 71024S12TYG8, 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 71024S12TYG8 part is unused and in its original packaging.
Return procedure for 71024S12TYG8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
71024S12TYG8 Tags
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