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Renesas 71024S12TYGI8
- Part No.:
- 71024S12TYGI8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 32-BSOJ (0.300", 7.62mm Width)
- Datasheet:
-
71024S12TYGI8.pdf
- Description:
- IC SRAM 1MBIT PARALLEL 32SOJ
- Quantity:
- Payment:
- Shipping:
Inventory:1,508
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Product details
Overview
71024S12TYGI8 from Renesas Electronics is a 128K × 8-bit (1 Mbit) high-speed CMOS static RAM with 12 ns access time, industrial temperature range (–40°C to +85°C), single 5V supply operation, and TTL-compatible bidirectional I/O. It serves as fast, non-refreshing main or cache memory in embedded controllers, industrial PLCs, and legacy communication interface modules.
For engineers reviewing the 71024S12TYGI8 datasheet, 71024S12TYGI8 pinout, 71024S12TYGI8 application, or 71024S12TYGI8 equivalent, key selection criteria include guaranteed 12 ns read cycle time, dual chip select architecture with independent OE control, SOJ-32 (300-mil) package compatibility, and low-power standby modes (ISB1 = 10 mA).
Technical Context
The 71024S12TYGI8 implements fully static asynchronous logic-no clocks or refresh cycles required-and uses dual active-low chip selects (CS1, CS2) plus an independent output enable (OE) to support flexible memory mapping and interleaved bus arbitration. Its address access time (tAA ≤ 12 ns) and read cycle time (tRC = 12 ns) are tightly matched for deterministic timing in real-time systems.
All inputs and outputs are TTL-compatible (VIH ≥ 2.2 V, VIL ≤ 0.8 V), and the device supports three power states: active read/write (ICC = 160 mA), TTL-level standby (ISB = 40 mA), and CMOS-level full standby (ISB1 = 10 mA), enabling dynamic power management in battery-backed or thermally constrained environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 128K × 8-bit (1,048,576 bits); supports byte-wide data bus without external demultiplexing |
| Access Time (tAA) | ≤12 ns at VCC = 4.5–5.5 V; enables direct interfacing with 80 MHz CPU buses |
| Read Cycle Time (tRC) | 12 ns; matches tAA for zero-wait-state operation in synchronous bus designs |
| Supply Voltage | 5.0 V ± 10% (4.5–5.5 V); compatible with legacy 5V TTL/CMOS system rails |
| Operating Temperature | –40°C to +85°C; qualified for industrial control, transportation, and factory automation |
| Standby Current (ISB1) | 10 mA max at VCC = 5.5 V; reduces idle power by 75% vs. TTL-level standby (ISB = 40 mA) |
| I/O Capacitance | CI/O ≤ 8 pF; minimizes signal integrity degradation on high-speed parallel buses |
Pinout & Package
71024S12TYGI8 is housed in a 32-pin Plastic Small-Outline J-Lead (SOJ) package with 300-mil body width (PJG32), compliant with JEDEC MS-012AC. The package features gull-wing leads optimized for wave soldering and surface-mount reliability in industrial PCB assemblies.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus supporting full 128K address space; A16 is MSB |
| I/O0–I/O7 | Bidirectional Data Bus | 8-bit TTL-compatible data path; high-impedance when CS1/CS2 inactive or OE high |
| CS1, CS2 | Chip Select Inputs | Active-low dual enables; CS1 = L & CS2 = H required for selection; supports bank decoding |
| OE | Output Enable | Active-low control of output drivers; enables shared bus operation with other peripherals |
| WE | Write Enable | Active-low write strobe; latches data on falling edge when CS1/CS2 active |
| VCC, GND | Power Supply | Single 5V supply; decoupling required within 10 mm of VCC pin per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| 12 ns Guaranteed Access | Ensures deterministic zero-wait-state operation with 80 MHz microcontrollers and DSPs |
| Dual Chip Select Architecture | Enables seamless integration into multi-bank memory maps without external logic |
| Independent Output Enable (OE) | Allows concurrent memory access and bus sharing with peripherals like UARTs or ADCs |
| CMOS-Level Full Standby (ISB1) | Reduces quiescent current to 10 mA for extended low-power hold modes in battery backup |
| TTL-Compatible I/O | Eliminates level-shifting requirements when interfacing with legacy 5V logic families |
Applications
| Industrial PLC Memory | Legacy Communication Interface |
|---|---|
Use Scenario: Storing program code and I/O image tables in programmable logic controllers operating in factory environments with ambient temperatures up to +85°C. IC Role / Device Role / Timing Role: Primary non-volatile program/data buffer with deterministic 12 ns access for scan-cycle execution. Use Value: Eliminates wait states during ladder logic execution, improving scan time consistency and reducing jitter in motion control loops. | Use Scenario: Buffering packetized data between UART-based modems and host processors in RS-232/RS-485 gateways. IC Role / Device Role / Timing Role: High-speed FIFO replacement with parallel access for burst-mode protocol framing. Use Value: Enables full-duplex packet buffering at 115.2 kbps without flow-control latency, leveraging dual CS for ping-pong read/write banking. |
| Embedded Controller Cache | Test Equipment Data Capture |
Use Scenario: Acting as instruction/data cache for 8051- or Z80-based embedded controllers running real-time firmware. IC Role / Device Role / Timing Role: Low-latency scratchpad memory mapped into CPU address space with no refresh overhead. Use Value: Improves average instruction fetch throughput by 3.2× vs. EPROM, accelerating interrupt response and sensor sampling rates. | Use Scenario: Capturing high-speed analog-to-digital conversion streams in benchtop oscilloscopes and logic analyzers. IC Role / Device Role / Timing Role: Parallel write-first, read-later buffer synchronized to sample clock edges. Use Value: Supports sustained 10 MS/s capture depth using simple address counter sequencing, avoiding DRAM controller complexity. |
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 | 5V, 128K × 8, 12 ns, SOJ-32, but uses single CS and no CS2; lower ISB1 (5 mA) | Lacks dual-CS decode flexibility; better for simple memory-mapped peripherals | Select when board layout lacks space for CS2 routing or when simplified control logic is preferred |
| AS6C1008-12TIN | 5V, 128K × 8, 12 ns, TSOP-II-32; higher tOH (6 ns vs. 4 ns); ISB1 = 25 mA | TSOP package offers smaller footprint but lower thermal mass; less suitable for high-temp industrial use | Select for space-constrained consumer-grade designs where industrial temp rating is not required |
Compared with CY62128EV30LL-12ZSXIT and AS6C1008-12TIN, the 71024S12TYGI8 uniquely provides dual chip select decoding, tighter tOH (4 ns), and industrial-grade SOJ packaging-making it optimal for legacy industrial systems requiring robust thermal performance and flexible memory banking.
Availability
71024S12TYGI8 is available at Aetrix Electronics and suitable for industrial PLCs, legacy communication gateways, and embedded controller cache applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 71024S12TYGI8 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 IDT71024 family-including 71024S12TYGI8-was designed specifically for high-reliability, pin-compatible replacement of legacy 5V SRAMs in industrial control, test equipment, and telecom infrastructure where long-term availability and deterministic timing are critical.
FAQ
What is the maximum operating frequency supported by the 71024S12TYGI8?
The 71024S12TYGI8 does not operate on a clock; it is an asynchronous SRAM. Its 12 ns read cycle time (tRC) supports effective bus frequencies up to 83 MHz in zero-wait-state configurations. Timing is governed by address setup/hold and chip select transitions-not a system clock-so maximum usable rate depends on controller timing margins and PCB layout.
Does the 71024S12TYGI8 require external refresh circuitry?
No, the 71024S12TYGI8 is a fully static RAM and requires no refresh cycles or clocks. Its CMOS latch-based memory cells retain data indefinitely as long as VCC is applied and within specification (4.5–5.5 V). This eliminates refresh overhead and simplifies system design versus DRAM-based solutions.
Can the 71024S12TYGI8 be used with a 3.3V microcontroller interface?
No-the 71024S12TYGI8 is strictly a 5V-only device with TTL-compatible input thresholds (VIH ≥ 2.2 V, VIL ≤ 0.8 V) and 5.0 V ±10% supply requirement. Direct connection to 3.3V logic risks violating VIH min and may cause unreliable reads/writes; level translation is mandatory for mixed-voltage systems.
What is the function of the second chip select (CS2) on the 71024S12TYGI8?
CS2 enables hierarchical memory decoding: the 71024S12TYGI8 activates only when CS1 is low AND CS2 is high. This allows two-level address decoding-e.g., using upper address bits to drive CS2 and lower bits to drive CS1-supporting clean bank switching without external gates in multi-SRAM systems.
Is the 71024S12TYGI8 RoHS-compliant and lead-free?
Yes-the "G" suffix in 71024S12TYGI8 indicates Green (lead-free, halogen-free) construction per Renesas' compliance documentation. It meets RoHS Directive 2011/65/EU and is rated for industrial temperature operation without exemptions.
71024S12TYGI8 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-SOJ
71024S12TYGI8 FAQ
1.How can I place an order for 71024S12TYGI8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 71024S12TYGI8 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 71024S12TYGI8 reliable?
The price and inventory of 71024S12TYGI8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 71024S12TYGI8 is usually 5 days.
3.What payment methods are accepted for 71024S12TYGI8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 71024S12TYGI8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 71024S12TYGI8?
71024S12TYGI8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 71024S12TYGI8 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 71024S12TYGI8?
For technical support, including 71024S12TYGI8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 71024S12TYGI8 requirements.
6.How does Aetrix verify that 71024S12TYGI8 is sourced from the original manufacturer or authorized distributors?
All 71024S12TYGI8 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 71024S12TYGI8 meets industry standards.
7.What is the process for return or replacement of 71024S12TYGI8?
All 71024S12TYGI8 units undergo pre-shipment inspection (PSI). If there is an issue with 71024S12TYGI8, 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 71024S12TYGI8 part is unused and in its original packaging.
Return procedure for 71024S12TYGI8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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