My Inquiry
My Account
Renesas 71024S25TYGI
- Part No.:
- 71024S25TYGI
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 32-BSOJ (0.300", 7.62mm Width)
- Datasheet:
-
71024S25TYGI.pdf
- Description:
- IC SRAM 1MBIT PARALLEL 32SOJ
- Quantity:
- Payment:
- Shipping:
Inventory:2,518
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
71024S25TYGI from Renesas Electronics is a 128K × 8-bit (1 Mbit) high-speed CMOS static RAM with industrial temperature range (–40°C to +85°C), 25 ns access time, TTL-compatible I/O, and dual chip select plus output enable control. It operates from a single 5.0 V ±10% supply and is used in real-time data buffering for industrial controllers and legacy embedded systems requiring deterministic, no-refresh memory access.
For engineers reviewing the 71024S25TYGI datasheet, 71024S25TYGI pinout, 71024S25TYGI application, or 71024S25TYGI equivalent, key selection criteria include industrial-grade reliability, SOJ-32 package compatibility, 25 ns read/write cycle timing, and low standby current (ISB1 = 10 mA) under full CMOS-level deselect conditions.
Technical Context
The 71024S25TYGI implements fully static asynchronous logic-no clocks or refresh cycles required-with bidirectional TTL-compatible I/O drivers and independent chip select (CS1/CS2) and output enable (OE) controls. Its architecture supports fast read cycles (tAA ≤ 25 ns, tOE ≤ 8 ns) and write cycles (tWC = 25 ns, tWP ≥ 15 ns) under industrial voltage and temperature conditions.
Power management is achieved via two distinct standby modes: ISB (TTL-level deselect, 40 mA max) and ISB1 (CMOS-level full standby, 10 mA max), enabling dynamic power scaling in battery-backed or energy-constrained systems. All inputs meet VIH ≥ 2.2 V and VIL ≤ 0.8 V at VCC = 4.5–5.5 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 128K × 8-bit (1,048,576 bits); supports byte-wide parallel data interface without multiplexing. |
| Access Time (tAA) | 25 ns max; guarantees address-to-data valid delay within industrial temp range and 5.0 V ±10% supply. |
| Read Cycle Time (tRC) | 25 ns min; defines minimum interval between successive read operations for reliable timing margin. |
| Supply Voltage | 4.5 V to 5.5 V; compatible with legacy 5 V TTL/CMOS system rails without level-shifting. |
| Operating Temperature | –40°C to +85°C; qualified for industrial automation, transportation, and ruggedized computing environments. |
| Standby Current (ISB1) | 10 mA max at VCC = 5.5 V, f = 0; enables ultra-low-power hold mode when CS1 ≥ VHC or CS2 ≤ VLC. |
| I/O Capacitance | CI/O ≤ 8 pF (SOJ package); ensures signal integrity on PCB traces up to ~10 cm at 25 ns edge rates. |
Pinout & Package
71024S25TYGI 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-029AC footprint. Pin 1 is marked by a notch or dot; pin numbering follows counterclockwise top-view convention.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus (A0 LSB to A16 MSB); selects one of 131,072 × 8-bit locations; no internal latching. |
| I/O0–I/O7 | Bidirectional Data Bus | 8-bit TTL-compatible data path; high-impedance when CS1/CS2 inactive or OE HIGH during reads. |
| CS1, CS2 | Chip Select Inputs | Active-LOW (CS1) and active-HIGH (CS2) enable device selection; both must be asserted for access. |
| OE | Output Enable | Active-LOW control of output drivers; allows shared bus operation without external tri-state logic. |
| WE | Write Enable | Active-LOW signal initiating write cycle; overlaps with CS1/CS2 to define write window per timing diagrams. |
| VCC, GND | Power Supply | Single 5 V supply (Pin 24) and ground (Pin 16); decoupling required within 1 cm for <25 ns timing compliance. |
| NC | No Connect | Pin 1 is NC; must remain unconnected-no internal circuitry or test function attached. |
Key Features
| Feature | Design Value |
|---|---|
| Industrial temperature qualification | Guaranteed operation from –40°C to +85°C with full AC/DC specs met-no derating required. |
| Dual chip select architecture | CS1 (active-LOW) and CS2 (active-HIGH) enable hierarchical memory mapping and bank selection in multi-chip systems. |
| TTL-compatible I/O interface | Direct connection to 5 V microcontrollers, FPGAs, and ASICs without level translators or pull-up resistors. |
| Two-tier standby power control | ISB1 = 10 mA (CMOS-level deselect) vs. ISB = 40 mA (TTL-level deselect)-supports fine-grained power state management. |
| No refresh or clock required | Fully static design eliminates DRAM-style refresh overhead, simplifying controller firmware and timing-critical designs. |
Applications
| Industrial PLC Data Buffering | Legacy Medical Imaging Controller |
|---|---|
|
Use Scenario: Real-time acquisition of sensor data streams in programmable logic controllers with deterministic scan-cycle deadlines. IC Role / Device Role / Timing Role: High-speed, non-refreshing data buffer storing input/output image tables between CPU fetches and field I/O updates. Use Value: 25 ns access time ensures sub-microsecond response to interrupt-driven I/O events, meeting IEC 61131-3 cycle-time requirements. |
Use Scenario: Frame buffering in ultrasound or X-ray digitizer modules where legacy 5 V bus architecture remains in service. IC Role / Device Role / Timing Role: Parallel byte-wide scratchpad memory interfacing directly to 8-bit ADC/DAC controllers and FPGA glue logic. Use Value: TTL-compatible I/O and SOJ-32 footprint allow drop-in replacement of obsolete SRAMs without PCB redesign or signal integrity revalidation. |
| Ruggedized Avionics Test Equipment | Automotive ECU Calibration Memory |
|
Use Scenario: Storing calibration coefficients and runtime logs in portable flight-line diagnostic tools exposed to wide thermal cycling. IC Role / Device Role / Timing Role: Nonvolatile-configurable working memory holding configuration parameters and fault history across power cycles. Use Value: Industrial temperature rating (–40°C to +85°C) and 10 mA ISB1 current ensure reliable retention during cold-soak and hot-soak environmental testing. |
Use Scenario: In-vehicle engine control units requiring temporary storage of adaptive learning values during closed-loop fuel trim adjustments. IC Role / Device Role / Timing Role: Fast-access scratch RAM supporting real-time PID loop calculations and EEPROM wear-leveling metadata caching. Use Value: 25 ns read/write cycle and dual CS pins enable seamless integration with legacy 8051- or 68K-based ECU buses without wait-state insertion. |
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-45ZAXI | 512K × 8-bit, 45 ns access, 3.3 V core (with 5 V tolerant I/O), TSOP-II package. | Higher density but slower speed and different voltage domain; requires level translation if interfacing to pure 5 V systems. | Select when migrating to lower-voltage platforms and additional memory depth is needed; not pin-compatible. |
| AS6C1008-25ZIN | 128K × 8-bit, 25 ns access, 5 V operation, SOJ-32 package, but only commercial grade (0°C to +70°C). | Lacks industrial temperature qualification; identical timing and pinout but unsuitable for extended thermal environments. | Acceptable for cost-sensitive commercial designs where ambient temperature stays within 0–70°C; verify thermal margin. |
Compared with CY62128EV30LL-45ZAXI and AS6C1008-25ZIN, the 71024S25TYGI uniquely delivers industrial-grade 25 ns performance in a legacy 5 V SOJ-32 footprint-enabling direct replacement in fielded equipment without voltage or layout changes.
Availability
71024S25TYGI is available at Aetrix Electronics and suitable for industrial PLC data buffering, legacy medical imaging controllers, ruggedized avionics test equipment, and automotive ECU calibration memory requiring stable component supply across long product lifecycles.
Supply support for 71024S25TYGI 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 industrial, automotive, and infrastructure markets.
The 71024S25TYGI belongs to Renesas' legacy high-speed parallel SRAM product line, designed specifically for backward-compatible memory upgrades in 5 V embedded systems requiring industrial reliability and deterministic timing.
FAQ
What is the operating voltage range for the 71024S25TYGI?
The 71024S25TYGI operates from a single 5.0 V supply with a specified range of 4.5 V to 5.5 V. This 10% tolerance ensures compatibility with standard 5 V TTL/CMOS logic families and accommodates typical power rail variation in industrial systems. All DC and AC electrical characteristics-including tAA = 25 ns and ISB1 = 10 mA-are guaranteed across this full voltage range at –40°C to +85°C.
Does the 71024S25TYGI require a clock or refresh signal?
No, the 71024S25TYGI uses fully static CMOS circuitry and requires no clock, refresh, or periodic access to retain data. It functions as a true asynchronous memory: data remains valid as long as VCC is applied and address/control signals are stable. This eliminates timing overhead in microcontroller- or FPGA-based systems and avoids hidden refresh-related latency in real-time applications.
What package type and dimensions does the 71024S25TYGI use?
The 71024S25TYGI is packaged in a 32-pin Plastic SOJ (Small Outline J-Lead) with a 300 mil body width (PJG32). Its JEDEC MO-029AC footprint features 1.27 mm pitch, 0.51 mm lead thickness, and gull-wing leads. The package is RoHS-compliant and labeled "Green" per Renesas ordering nomenclature, indicating restricted hazardous substances.
How does chip select work on the 71024S25TYGI?
The 71024S25TYGI uses two complementary chip select inputs: CS1 (active-LOW) and CS2 (active-HIGH). Both must be asserted simultaneously-CS1 = LOW and CS2 = HIGH-for the device to respond to address and control signals. This dual-CS scheme enables hierarchical memory decoding in multi-SRAM systems and prevents partial selection during bus contention or power-up sequencing.
Is the 71024S25TYGI pin-compatible with other IDT71024 speed grades?
Yes, all IDT71024 variants-including 71024S12TYGI, 71024S15TYGI, and 71024S25TYGI-share identical pinout, package (PJG32 SOJ), and functional interface. The only differences are AC timing parameters (e.g., tAA, tRC) and corresponding ICC/ISB values. This allows direct speed-grade substitution in existing designs without layout or firmware changes, provided timing margins are verified.
71024S25TYGI 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:
- 25ns
- Access Time:
- 25 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
71024S25TYGI FAQ
1.How can I place an order for 71024S25TYGI through Aetrix?
Please submit a Request for Quotation (RFQ) for 71024S25TYGI 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 71024S25TYGI reliable?
The price and inventory of 71024S25TYGI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 71024S25TYGI is usually 5 days.
3.What payment methods are accepted for 71024S25TYGI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 71024S25TYGI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 71024S25TYGI?
71024S25TYGI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 71024S25TYGI 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 71024S25TYGI?
For technical support, including 71024S25TYGI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 71024S25TYGI requirements.
6.How does Aetrix verify that 71024S25TYGI is sourced from the original manufacturer or authorized distributors?
All 71024S25TYGI 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 71024S25TYGI meets industry standards.
7.What is the process for return or replacement of 71024S25TYGI?
All 71024S25TYGI units undergo pre-shipment inspection (PSI). If there is an issue with 71024S25TYGI, 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 71024S25TYGI part is unused and in its original packaging.
Return procedure for 71024S25TYGI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
71024S25TYGI Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
Tech Hub
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
