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Renesas IDT71024S12TYI
- Part No.:
- IDT71024S12TYI
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 32-BSOJ (0.300", 7.62mm Width)
- Datasheet:
-
IDT71024S12TYI.pdf
- Description:
- IC SRAM 1MBIT PARALLEL 32SOJ
- Quantity:
- Payment:
- Shipping:
Inventory:1,841
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Product details
Overview
IDT71024S12TYI 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), and TTL-compatible bidirectional I/O. It operates from a single 5.0 V ±10% supply, features dual chip selects (CS1, CS2) and dedicated output enable (OE), and is used in real-time control buffers, legacy industrial PLCs, and embedded instrumentation requiring deterministic, no-refresh memory access.
For engineers reviewing the IDT71024S12TYI datasheet, IDT71024S12TYI pinout, IDT71024S12TYI application, or IDT71024S12TYI equivalent, key selection criteria include guaranteed 12 ns read cycle time (tRC), 6 ns OE-to-output delay (tOE), full standby current of 10 mA (ISB1), and SOJ-32 package compatibility with legacy board layouts.
Technical Context
The IDT71024S12TYI implements fully static asynchronous architecture-no clocks or refresh cycles required-and uses high-reliability CMOS process technology optimized for low-power, high-speed operation across industrial ambient conditions. Its dual-chip-select logic enables hierarchical memory mapping, 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 the device supports three power states: active read/write (ICC = 160 mA), TTL-level standby (ISB = 40 mA), and CMOS-level deep standby (ISB1 = 10 mA), with fast transition times (tPD = 12 ns, tPU = 0 ns).
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 maximum - guarantees deterministic data availability within 12 ns of valid address and CS1/CS2 assertion |
| Read Cycle Time (tRC) | 12 ns minimum - enables sustained 83.3 MHz random read throughput |
| Supply Voltage | 5.0 V ±10% - compatible with legacy 5 V TTL/CMOS system rails without regulation overhead |
| Operating Temperature | –40°C to +85°C - qualified for uncontrolled industrial environments without derating |
| Standby Current (ISB1) | 10 mA maximum at VCC max - enables low-power hold mode during CPU idle periods |
| Output Enable Delay (tOE) | 6 ns maximum - allows tight timing margin for shared-bus arbitration in multi-master systems |
Pinout & Package
Package: 32-pin Plastic SOJ (300-mil width, PJG32 footprint), surface-mount, gull-wing leads.
| 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; direction controlled by WE and CS states |
| CS1, CS2 | Chip Select Inputs | Active-low (CS1) and active-high (CS2) enable hierarchical decoding; both required for selection |
| OE | Output Enable | Active-low control of output drivers; independent of WE, enabling read-only bus monitoring |
| WE | Write Enable | Active-low signal initiating write cycle; overlaps with CS1/CS2 to define write window |
| VCC, GND | Power Supply | Single 5 V supply with dedicated ground; decoupling required per SOJ thermal/mounting guidelines |
Key Features
| Feature | Design Value |
|---|---|
| 12 ns access time with industrial temp rating | Enables use in real-time motion controllers where memory latency directly impacts servo loop jitter |
| Dual chip select (CS1/CS2) decode logic | Supports banked memory expansion up to 2× density without external address demuxers |
| 6 ns OE-to-output valid delay | Permits direct connection to 80C31/80C51-style microcontrollers with no wait-state insertion |
| CMOS-level deep standby (ISB1 = 10 mA) | Reduces system idle power by >75% vs. TTL standby mode in battery-backed instrumentation |
| TTL-compatible I/O on single 5 V supply | Eliminates level-shifting components in mixed-logic legacy designs using 74LS/HC peripherals |
Applications
| Industrial PLC Data Buffer | Legacy Test Equipment Memory |
|---|---|
Use Scenario: Storing real-time I/O scan data in modular programmable logic controllers with deterministic 10 ms cycle times. IC Role / Device Role / Timing Role: High-speed scratchpad RAM holding input image tables and output update buffers between scan phases. Use Value: 12 ns access ensures full 128K buffer read/write completes within 1.3 µs-well under 1% of PLC scan time. | Use Scenario: Serving as waveform capture memory in benchtop digital storage oscilloscopes with 100 MS/s sampling. IC Role / Device Role / Timing Role: Parallel FIFO buffer accepting digitized samples from ADC front-end before serial upload to host PC. Use Value: Bidirectional I/O and 6 ns tOE allow seamless handoff between acquisition and readout phases without bus contention. |
| Avionics Maintenance Terminal | Ruggedized HMI Controller |
Use Scenario: Storing fault logs and configuration parameters in airborne Line Replaceable Units (LRUs) operating across –40°C to +70°C. IC Role / Device Role / Timing Role: Non-refresh volatile memory retaining operational history during power cycling between maintenance sessions. Use Value: Industrial-grade temperature qualification and 10 mA ISB1 ensure reliable retention over extended ground-idle periods. | Use Scenario: Acting as display frame buffer in human-machine interface panels deployed in factory-floor operator stations. IC Role / Device Role / Timing Role: Dedicated video RAM supplying pixel data to parallel RGB interface of TFT controller IC. Use Value: SOJ-32 package matches legacy PCB footprints; 5 V tolerance avoids redesign when upgrading from NMOS SRAMs. |
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 | 44-pin TSOP-II, 3.3 V core, 12 ns access, 128K × 8, but requires separate VDDQ for I/O | Not pin-compatible; needs PCB redesign and level-shifting for 5 V systems | Select only if migrating to 3.3 V architecture with layout flexibility |
| AS6C1008-12PIN | 32-pin SOJ, 5 V, 128K × 8, 12 ns access, but lacks CS2 and uses single CS | Reduced decode flexibility; cannot replicate hierarchical CS1/CS2 bank switching | Choose when simplified chip select logic suffices and footprint match is critical |
Compared with CY62128EV30LL-12ZSXIT and AS6C1008-12PIN, the IDT71024S12TYI uniquely delivers industrial-temp 12 ns performance in a drop-in 32-pin SOJ-300 package with dual-CS architecture-enabling direct replacement in legacy 5 V systems without voltage translation or layout change.
Availability
IDT71024S12TYI is available at Aetrix Electronics and suitable for industrial PLCs, avionics LRUs, and ruggedized HMIs requiring stable component supply across extended product lifecycles and temperature extremes.
Supply support for IDT71024S12TYI 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 IDT71024S12TYI belongs to Renesas' legacy high-speed parallel SRAM product line, designed specifically for deterministic, no-refresh memory interfacing in 5 V industrial control and instrumentation systems.
FAQ
What is the operating voltage range for the IDT71024S12TYI?
The IDT71024S12TYI operates from a single 5.0 V supply with a specified range of 4.5 V to 5.5 V. This 5 V tolerance ensures compatibility with legacy TTL/CMOS logic families and eliminates need for additional voltage regulation in established 5 V system designs. All DC and AC timing parameters in the datasheet are guaranteed across this full voltage range at industrial temperatures.
Does the IDT71024S12TYI require a clock or refresh signal?
No, the IDT71024S12TYI uses fully static CMOS circuitry and requires no clock, refresh, or periodic access to retain data. It maintains stored values indefinitely as long as VCC remains within specification and the device stays powered. This eliminates timing-critical refresh overhead in real-time embedded applications where deterministic latency is essential-exactly as implemented in the IDT71024S12TYI's architecture.
What is the function of CS2 on the IDT71024S12TYI?
CS2 is an active-high chip select input that-when asserted high alongside CS1 low-enables memory access. Its complementary polarity to CS1 allows hierarchical address decoding: CS2 can be driven by higher-order address bits or system-level enable signals, while CS1 serves as local gate. This dual-control scheme is integral to the IDT71024S12TYI's flexible memory mapping capability and distinguishes it from single-CS SRAMs.
Can the IDT71024S12TYI be used in commercial temperature applications?
Yes, the IDT71024S12TYI is rated for industrial temperature (–40°C to +85°C), which fully encompasses the commercial range (0°C to +70°C). Its specifications-including 12 ns access time, 160 mA ICC, and 10 mA ISB1-are guaranteed across the full industrial range, making it suitable for both commercial and industrial deployments without derating or qualification concerns.
What package type does the IDT71024S12TYI use?
The IDT71024S12TYI uses a 32-pin Plastic SOJ (Small Outline J-lead) package with 300-mil body width, identified as PJG32 in Renesas ordering nomenclature. This surface-mount package features gull-wing leads, matches legacy board footprints for 5 V SRAM upgrades, and is RoHS-compliant with green material content per ordering code "G".
IDT71024S12TYI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 32-BSOJ (0.300", 7.62mm Width)
- Packaging:
- Tube
- 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:
- 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
IDT71024S12TYI FAQ
1.How can I place an order for IDT71024S12TYI through Aetrix?
Please submit a Request for Quotation (RFQ) for IDT71024S12TYI 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 IDT71024S12TYI reliable?
The price and inventory of IDT71024S12TYI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IDT71024S12TYI is usually 5 days.
3.What payment methods are accepted for IDT71024S12TYI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IDT71024S12TYI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IDT71024S12TYI?
IDT71024S12TYI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IDT71024S12TYI 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 IDT71024S12TYI?
For technical support, including IDT71024S12TYI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IDT71024S12TYI requirements.
6.How does Aetrix verify that IDT71024S12TYI is sourced from the original manufacturer or authorized distributors?
All IDT71024S12TYI 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 IDT71024S12TYI meets industry standards.
7.What is the process for return or replacement of IDT71024S12TYI?
All IDT71024S12TYI units undergo pre-shipment inspection (PSI). If there is an issue with IDT71024S12TYI, 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 IDT71024S12TYI part is unused and in its original packaging.
Return procedure for IDT71024S12TYI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
IDT71024S12TYI Tags
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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
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AT21CS01-STUM10-T
Microchip Technology
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AT24C02C-SSHM-T
Microchip Technology
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24LC01BT-I/OT
Microchip Technology
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M24C02-FMC6TG
STMicroelectronics
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AT24CS02-SSHM-T
Microchip Technology
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93LC46BT-I/OT
Microchip Technology
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AT24C04C-SSHM-T
Microchip Technology
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24LC01BT-I/SN
Microchip Technology
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24AA02UIDT-I/OT
Microchip Technology
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AT24C08C-STUM-T
Microchip Technology
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