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Renesas IDT71024S15Y8
- Part No.:
- IDT71024S15Y8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 32-BSOJ (0.400", 10.16mm Width)
- Datasheet:
-
IDT71024S15Y8.pdf
- Description:
- IC SRAM 1MBIT PARALLEL 32SOJ
- Quantity:
- Payment:
- Shipping:
Inventory:4,651
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Product details
Overview
IDT71024S15Y8 from Renesas Electronics is a 128K × 8-bit (1 Mbit) high-speed CMOS static RAM with 15 ns access and cycle times, operating at 5.0 V ±10% over industrial temperature (–40°C to +85°C), packaged in 32-pin 400-mil Plastic SOJ (PBG32). It features dual chip selects (CS1, CS2), TTL-compatible bidirectional I/O, and output enable (OE) for fast 7 ns read access.
For engineers reviewing the IDT71024S15Y8 datasheet, IDT71024S15Y8 pinout, IDT71024S15Y8 application, or IDT71024S15Y8 equivalent, key selection criteria include industrial-grade reliability, low standby current (ISB1 = 10 mA), fast OE-controlled read timing, and compatibility with legacy 5 V bus systems requiring no refresh or clocks.
Technical Context
The IDT71024S15Y8 implements fully static asynchronous architecture-no clocks, no refresh cycles-enabling deterministic timing across all operations. Its dual chip select logic supports hierarchical memory decoding, while OE allows output gating independent of chip selection, enabling shared-bus contention management.
It uses high-reliability CMOS process technology with TTL-compatible input thresholds (VIH ≥ 2.2 V, VIL ≤ 0.8 V) and guaranteed DC leakage (|ILI| ≤ 5 µA). All I/Os are bidirectional with VOH ≥ 2.4 V at –4 mA and VOL ≤ 0.4 V at 8 mA, ensuring robust noise margins in mixed-signal embedded systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 128K × 8-bit (1,048,576 bits); supports byte-wide data transfers without external demultiplexing |
| Access Time (tAA) | 15 ns max at VCC = 4.5–5.5 V, TA = –40°C to +85°C; enables CPU wait-state-free operation with 66 MHz bus interfaces |
| Supply Voltage | 5.0 V ±10% (4.5–5.5 V); compatible with legacy 5 V logic families and eliminates need for level-shifting |
| Standby Current (ISB1) | 10 mA max at VCC = max, full CMOS-level deselect (CS1 ≥ VHC or CS2 ≤ VLC); reduces power in idle states without external gating |
| Output Enable Delay (tOE) | 7 ns max; allows precise timing control of data bus release during multi-device sharing |
| Operating Temperature | –40°C to +85°C industrial grade; qualified for deployment in industrial controllers, telecom line cards, and automotive body electronics |
| Package | 32-pin Plastic SOJ (PBG32, 400-mil width); surface-mount compatible with standard reflow profiles and IPC-7351B footprint |
Pinout & Package
Package: 32-pin Plastic SOJ (PBG32), 400-mil body width, gull-wing leads, JEDEC MS-012AC compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus (A0 LSB to A16 MSB); decodes 128K locations; no internal latching |
| I/O0–I/O7 | Bidirectional Data Bus | 8-bit TTL-compatible data path; direction controlled by WE and CS states; high-impedance when deselected or OE inactive |
| CS1, CS2 | Chip Select Inputs | Active-low (CS1) and active-high (CS2) dual-enable logic; enables hierarchical memory mapping and partial decode flexibility |
| OE | Output Enable | Active-low control of output drivers; allows read data gating without deselecting chip; tOE = 7 ns max |
| WE | Write Enable | Active-low write strobe; initiates write cycle when CS1 low, CS2 high, and WE low; tWP = 12 ns min |
| VCC, GND | Power Supply | Single 5 V supply (pin 24); ground reference (pin 16); decoupling required per high-speed RAM layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| 15 ns industrial-grade access time | Guaranteed performance over –40°C to +85°C without derating; supports real-time control loops with sub-20 ns memory latency |
| Dual chip select architecture | CS1 (active-low) and CS2 (active-high) allow flexible address decoding schemes and reduce external logic count in multi-bank systems |
| TTL-compatible I/O interface | Direct connection to 5 V microcontrollers, FPGAs, and ASICs without level shifters; VIH ≥ 2.2 V, VIL ≤ 0.8 V, VOH ≥ 2.4 V |
| Low-power full standby mode (ISB1) | 10 mA max current draw when fully deselected via CMOS-level inputs; cuts dynamic power by >90% vs. active operation |
| No clock or refresh required | Fully static design eliminates timing-critical refresh overhead and simplifies system-level timing closure in deterministic applications |
Applications
| Industrial PLC Memory Buffer | Legacy Telecom Line Card Cache |
|---|---|
|
Use Scenario: Storing real-time I/O status and configuration registers in programmable logic controllers deployed in factory automation environments. IC Role / Device Role / Timing Role: Byte-accessible, non-refreshing SRAM buffer interfacing directly to 8-bit microcontroller buses with strict 15 ns timing compliance. Use Value: Enables deterministic scan-cycle execution under industrial temperature extremes without memory controller overhead or refresh-induced jitter. |
Use Scenario: Holding protocol translation tables and packet header buffers in E1/T1 line interface units operating in telecom central offices. IC Role / Device Role / Timing Role: High-reliability, 5 V-tolerant SRAM providing zero-wait-state access to legacy DSP and ASIC data paths. Use Value: Eliminates need for external voltage translators or refresh circuitry, reducing BOM cost and board space in space-constrained line cards. |
| Automotive Body Control Module | Medical Diagnostic Equipment Frame Store |
|
Use Scenario: Temporary storage of sensor fusion results and actuator command history in body control modules subjected to under-hood thermal cycling. IC Role / Device Role / Timing Role: Industrial-temperature SRAM with 10 mA ISB1 supporting low-power sleep modes between CAN message bursts. Use Value: Maintains data integrity across –40°C to +85°C without thermal derating, meeting AEC-Q100 stress test requirements for non-automotive-qualified parts used in Tier-2 modules. |
Use Scenario: Capturing and staging digitized waveform segments in portable ultrasound and ECG devices before DSP processing. IC Role / Device Role / Timing Role: Low-latency, single-supply SRAM acting as frame buffer between ADC interface and FPGA-based image pipeline. Use Value: Provides consistent 15 ns read/write timing across medical-grade temperature range, avoiding frame drop due to memory timing violations. |
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 only, TSOP-32 package; lower speed, different voltage domain | Requires level-shifting for 5 V systems; unsuitable where 15 ns timing or 5 V native interface is mandatory | Select only if migrating to 3.3 V architecture and relaxing timing constraints |
| AS6C1008-15TIN | 128K × 8, 15 ns access, 5 V, SOJ-32; same speed/temp but higher ICC (170 mA vs. 155 mA) and no ISB1 spec | Lacks guaranteed full-standby current; less suitable for battery-backed or ultra-low-power sleep modes | Prefer IDT71024S15Y8 when ISB1 ≤ 10 mA and industrial temp stability are critical |
Compared with CY62128EV30LL-45ZSXIT and AS6C1008-15TIN, the IDT71024S15Y8 uniquely delivers 15 ns industrial-grade performance at 5 V with verified 10 mA full-standby current-making it optimal for legacy 5 V systems requiring deterministic timing and low quiescent power.
Availability
IDT71024S15Y8 is available at Aetrix Electronics and suitable for industrial PLCs, telecom line cards, automotive body control modules, and medical diagnostic equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for IDT71024S15Y8 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 enterprise applications.
The IDT71024S15Y8 belongs to Renesas' legacy high-speed CMOS SRAM product line, designed specifically for 5 V embedded systems requiring pin-compatible, no-refresh memory with industrial temperature resilience and TTL interoperability.
FAQ
What is the maximum operating temperature range certified for IDT71024S15Y8?
IDT71024S15Y8 is specified for industrial temperature operation from –40°C to +85°C. This range is production-tested and guaranteed per the datasheet's Recommended Operating Conditions table, making it suitable for deployment in harsh environments such as factory floors and vehicle under-hood locations where ambient temperatures exceed commercial-grade limits.
Does IDT71024S15Y8 require an external clock or refresh signal?
No, IDT71024S15Y8 uses fully static asynchronous circuitry and requires no clock, timer, or refresh signals. Data retention is indefinite as long as power is applied and address/data lines remain stable-eliminating timing-critical refresh overhead in real-time embedded systems.
What is the function of the CS2 pin on IDT71024S15Y8?
CS2 is an active-high chip select input that, together with active-low CS1, forms a dual-enable logic pair. Both CS1 = LOW and CS2 = HIGH must be asserted simultaneously for the device to enter active read/write mode-providing flexible decoding options and reducing external gate count in multi-bank memory systems.
Can IDT71024S15Y8 operate reliably at 4.5 V supply voltage?
Yes, IDT71024S15Y8 is fully characterized and guaranteed to meet all AC/DC specifications-including 15 ns access time and 10 mA ISB1-at VCC = 4.5 V (minimum rated supply). This ensures robust operation across the full 4.5–5.5 V tolerance band without performance degradation.
Is IDT71024S15Y8 RoHS-compliant and lead-free?
Yes, IDT71024S15Y8 is a green, RoHS-compliant device per Renesas' ordering information. The "G" suffix in the part number denotes lead-free, halogen-free construction, and it meets JEDEC J-STD-020 moisture sensitivity level 3 (MSL3) requirements for standard surface-mount assembly.
IDT71024S15Y8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 32-BSOJ (0.400", 10.16mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-SOJ
IDT71024S15Y8 FAQ
1.How can I place an order for IDT71024S15Y8 through Aetrix?
Please submit a Request for Quotation (RFQ) for IDT71024S15Y8 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 IDT71024S15Y8 reliable?
The price and inventory of IDT71024S15Y8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IDT71024S15Y8 is usually 5 days.
3.What payment methods are accepted for IDT71024S15Y8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IDT71024S15Y8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IDT71024S15Y8?
IDT71024S15Y8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IDT71024S15Y8 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 IDT71024S15Y8?
For technical support, including IDT71024S15Y8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IDT71024S15Y8 requirements.
6.How does Aetrix verify that IDT71024S15Y8 is sourced from the original manufacturer or authorized distributors?
All IDT71024S15Y8 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 IDT71024S15Y8 meets industry standards.
7.What is the process for return or replacement of IDT71024S15Y8?
All IDT71024S15Y8 units undergo pre-shipment inspection (PSI). If there is an issue with IDT71024S15Y8, 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 IDT71024S15Y8 part is unused and in its original packaging.
Return procedure for IDT71024S15Y8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
IDT71024S15Y8 Tags
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M24C02-WMN6TP
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AT24C02C-XHM-T
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AT21CS01-STUM10-T
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24LC01BT-I/OT
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M24C02-FMC6TG
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AT24CS02-SSHM-T
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AT24C04C-SSHM-T
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AT24C08C-STUM-T
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