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Renesas 71024S20TYG
- Part No.:
- 71024S20TYG
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 32-BSOJ (0.300", 7.62mm Width)
- Datasheet:
-
71024S20TYG.pdf
- Description:
- IC SRAM 1MBIT PARALLEL 32SOJ
- Quantity:
- Payment:
- Shipping:
Inventory:2,432
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Product details
Overview
71024S20TYG from Renesas Electronics is a 128K × 8-bit (1 Mbit) high-speed CMOS static RAM with 20 ns read/write cycle time, TTL-compatible I/O, single 5V supply operation, and industrial-grade temperature range (–40°C to +85°C). It serves as a non-refreshing, fully static memory buffer in real-time control systems requiring deterministic access latency.
For engineers reviewing the 71024S20TYG datasheet, 71024S20TYG pinout, 71024S20TYG application, or 71024S20TYG equivalent, key selection criteria include guaranteed 20 ns tRC/tWC timing at industrial temperature, dual chip select architecture for bank isolation, OE-controlled output enable with 8 ns tOE, and SOJ-32 (300-mil) package compatibility with legacy board layouts.
Technical Context
The 71024S20TYG implements fully asynchronous static RAM logic with no clocks or refresh cycles required. Its bidirectional I/O pins operate at TTL voltage levels (VIH = 2.2 V min, VIL = 0.8 V max) and support direct interfacing with 5V microcontrollers and FPGAs without level-shifting.
Two independent chip selects (CS1, CS2) and one output enable (OE) provide hierarchical memory enable control: CS1/CS2 jointly select the device while OE gates output drivers, enabling bus sharing and low-power standby modes (ISB1 = 10 mA max at full CMOS-level deselect).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 128K × 8-bit (1,048,576 bits), byte-wide parallel interface |
| Access/Cycle Time | 20 ns (tAA, tRC, tWC), guaranteed across –40°C to +85°C |
| Supply Voltage | 5.0 V ± 10% (4.5–5.5 V), single-rail operation |
| I/O Compatibility | TTL-compatible inputs and outputs, no external pull-ups required |
| Standby Current | 10 mA max (ISB1) under full CMOS-level deselect (CS1 ≥ VHC or CS2 ≤ VLC) |
| Output Enable Delay | 8 ns (tOE) from OE low to valid data, enabling tight bus arbitration |
| Package | 32-pin Plastic SOJ, 300-mil width (PJG32), RoHS-compliant green variant |
Pinout & Package
71024S20TYG is housed in a 32-pin Plastic SOJ (Small Outline J-Lead) package, 300-mil body width (PJG32), with gull-wing leads suitable for wave or reflow soldering. Pin 1 is marked by a notch or dot; top view orientation follows JEDEC MS-012 standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus (A0 LSB to A16 MSB) selecting 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 CS1 and active-high CS2 must both be asserted for device selection |
| OE | Output Enable | Active-low control of output drivers; enables tristate during read cycles |
| WE | Write Enable | Active-low signal initiating write cycle; latches data on falling edge |
| VCC, GND | Power Supply | Single 5V supply (Pin 24) and ground (Pin 16); decoupling recommended near pins |
Key Features
| Feature | Design Value |
|---|---|
| Zero-refresh static architecture | Eliminates DRAM refresh circuitry and timing overhead in embedded controllers |
| Dual chip select with OE | Enables memory banking and shared-bus arbitration without external logic |
| Industrial temperature support | Guaranteed 20 ns timing over –40°C to +85°C, validated for factory automation hardware |
| Low-power standby mode | 10 mA ISB1 current at full CMOS-level deselect extends battery life in portable test equipment |
| Green RoHS-compliant packaging | PJG32 SOJ uses lead-free terminations and halogen-free molding compound |
Applications
| Industrial PLC Memory Buffer | Medical Imaging Frame Store |
|---|---|
|
Use Scenario: Real-time I/O scanning and logic execution in programmable logic controllers with deterministic scan cycles. IC Role / Device Role / Timing Role: Non-volatile program/data scratchpad storing ladder logic variables and sensor history buffers. Use Value: 20 ns tRC ensures sub-100 µs memory access within 1 ms PLC scan windows, eliminating pipeline stalls. |
Use Scenario: Temporary storage of digitized X-ray or ultrasound frames before compression and transmission. IC Role / Device Role / Timing Role: High-bandwidth frame buffer interfacing directly with ADCs and FPGA pixel processors. Use Value: TTL-compatible 8-bit I/O and 8 ns tOE support 50+ MB/s sustained throughput without glue logic. |
| Avionics Data Logger | Test & Measurement Equipment |
|
Use Scenario: Capturing flight sensor telemetry at 10 kHz sampling rate with timestamped buffering. IC Role / Device Role / Timing Role: Circular buffer memory for pre-trigger/post-trigger event capture in DO-254-compliant hardware. Use Value: Industrial temp rating and 10 mA ISB1 enable reliable operation in unheated avionics bays with minimal thermal management. |
Use Scenario: Storing waveform samples in digital oscilloscopes and logic analyzers during acquisition bursts. IC Role / Device Role / Timing Role: High-speed acquisition memory synchronized to internal clock domains via WE/CS timing control. Use Value: Dual CS architecture allows seamless switching between acquisition and display memory banks without CPU intervention. |
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 speed grade, 3.3 V supply only, TSOP-II package | Requires level-shifting for 5V systems; unsuitable for legacy 5V controller interfaces | Select only if migrating to 3.3V system architecture with space-constrained PCB layout |
| AS6C1008-20TIN | 128K × 8, 20 ns speed, 5V supply, SOJ-32 (300-mil) pinout identical to 71024S20TYG | Same pinout and DC specs; AC timing differs slightly (tOE = 10 ns vs. 8 ns) | Drop-in replacement where 2 ns OE delay margin is acceptable; verify tOE timing in critical bus arbitration paths |
Compared with CY62128EV30LL-45ZSXIT and AS6C1008-20TIN, the 71024S20TYG uniquely delivers guaranteed 20 ns timing at 5V with industrial temperature support in PJG32 SOJ-enabling drop-in upgrades in legacy 5V industrial control boards without voltage rail or footprint changes.
Availability
71024S20TYG is available at Aetrix Electronics and suitable for industrial PLCs, medical imaging subsystems, avionics data loggers, and test & measurement equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 71024S20TYG 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 specializing in microcontrollers, analog, power, and memory solutions for industrial, automotive, and infrastructure markets.
The 71024S20TYG belongs to Renesas' legacy high-speed CMOS SRAM product line, designed specifically for deterministic, low-latency memory interfacing in 5V embedded control and instrumentation systems.
FAQ
What is the operating temperature range for the 71024S20TYG?
71024S20TYG is rated for industrial temperature operation from –40°C to +85°C. This specification is guaranteed across all AC and DC parameters including 20 ns access time, 10 mA ISB1 standby current, and TTL-compatible I/O thresholds. The "I" suffix in the ordering code confirms industrial grade qualification per Renesas datasheet revision Mar.30.21.
Does the 71024S20TYG require a refresh circuit?
No, the 71024S20TYG 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 ambient temperature remains within –40°C to +85°C. This eliminates refresh overhead in microcontroller-based systems and simplifies timing-critical designs like real-time PLCs.
What package type does the 71024S20TYG use?
71024S20TYG uses a 32-pin Plastic SOJ (Small Outline J-Lead) package with 300-mil body width, identified as PJG32 in Renesas ordering nomenclature. It features gull-wing leads compatible with standard wave and reflow soldering processes and is RoHS-compliant with green (lead-free) finish.
How does the dual chip select (CS1/CS2) architecture function in the 71024S20TYG?
In the 71024S20TYG, CS1 is active-low and CS2 is active-high; both must be asserted simultaneously (CS1 = L, CS2 = H) to enable the device. This dual-control scheme prevents partial selection glitches and supports hierarchical memory mapping-e.g., using CS2 to select memory banks and CS1 for fine-grained chip enable in multi-SRAM systems.
Is the 71024S20TYG pin-compatible with other IDT71024 speed grades?
Yes, all IDT71024 variants-including 71024S12TYG, 71024S15TYG, and 71024S20TYG-share identical 32-pin SOJ-300mil (PJG32) pinout, DC electrical characteristics, and functional logic. Only AC timing parameters differ; therefore, faster variants can be substituted into 71024S20TYG designs if board layout and timing margins allow.
71024S20TYG 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:
- 20ns
- Access Time:
- 20 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
71024S20TYG FAQ
1.How can I place an order for 71024S20TYG through Aetrix?
Please submit a Request for Quotation (RFQ) for 71024S20TYG 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 71024S20TYG reliable?
The price and inventory of 71024S20TYG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 71024S20TYG is usually 5 days.
3.What payment methods are accepted for 71024S20TYG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 71024S20TYG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 71024S20TYG?
71024S20TYG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 71024S20TYG 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 71024S20TYG?
For technical support, including 71024S20TYG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 71024S20TYG requirements.
6.How does Aetrix verify that 71024S20TYG is sourced from the original manufacturer or authorized distributors?
All 71024S20TYG 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 71024S20TYG meets industry standards.
7.What is the process for return or replacement of 71024S20TYG?
All 71024S20TYG units undergo pre-shipment inspection (PSI). If there is an issue with 71024S20TYG, 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 71024S20TYG part is unused and in its original packaging.
Return procedure for 71024S20TYG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
71024S20TYG Tags
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AT24C02C-XHM-T
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AT21CS01-STUM10-T
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