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Renesas 7024S20PFI
- Part No.:
- 7024S20PFI
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 100-LQFP
- Datasheet:
-
7024S20PFI.pdf
- Description:
- IC SRAM 64KBIT PARALLEL 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,824
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Product details
Overview
7024S20PFI from IDT is a high-speed 4K × 16 true dual-port static RAM with independent left/right ports, 20 ns max read cycle time (tRC), TTL-compatible 5V ±10% supply, and industrial temperature range (–40°C to +85°C). It supports simultaneous asynchronous access, on-chip semaphore arbitration, and battery-backed data retention down to 2V - enabling use in real-time inter-processor communication buffers for avionics and industrial control systems.
For engineers reviewing the 7024S20PFI datasheet, 7024S20PFI pinout, 7024S20PFI application, or 7024S20PFI equivalent, key selection considerations include its Master/Slave BUSY flag protocol, separate upper/lower byte enables (UBL/LBL, UBR/LBR), 84-pin PLCC package compatibility, and verified 20 ns timing across industrial temperature.
Technical Context
The 7024S20PFI implements fully asynchronous dual-port operation with independent address, control, and I/O buses per port. Its on-chip arbitration logic resolves contention via BUSY flag signaling and supports semaphore flag read/write using A0–A2 addressing and SEM enable.
It features two distinct power modes: active operation at 750 mW typical (IDT7024S variant), and standby at 5 mW typical - enabled by CE-driven automatic power-down. Data retention at 2V is guaranteed only for the 'L' version; the 'S' suffix in 7024S20PFI confirms standard-power operation without extended retention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 4,096 × 16-bit (64 Kbit), true dual-port SRAM with independent left/right access paths |
| Access Time (tRC) | 20 ns maximum - defines minimum read cycle interval for reliable timing in 50 MHz-equivalent bus systems |
| Supply Voltage | 4.5 V to 5.5 V - TTL-compatible single 5V ±10% rail, no auxiliary supplies required |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded applications with thermal cycling resilience |
| Power Consumption | 750 mW typical active, 5 mW typical standby - enables low-heat-density board layouts in sealed enclosures |
| Package | 84-pin PLCC (Plastic Leaded Chip Carrier) - surface-mount compatible with standard reflow profiles |
| Bus Interface | Separate UB/LB and UBR/LBR controls - supports multiplexed 16-bit data bus interfacing without external glue logic |
Pinout & Package
7024S20PFI is supplied in an 84-pin Plastic Leaded Chip Carrier (PLCC) package with 0.050″ lead pitch and JEDEC MO-047AC outline. Pin 1 is marked by a corner notch; the package is lead-free and RoHS-compliant per ordering information.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CEL / CER | Chip Enable (Left / Right) | Active-low enables memory access on respective port; deassertion places port in high-Z and low-power state |
| R/WL / R/WR | Read/Write Control (Left / Right) | Low = write, high = read; controls direction of data flow on I/O pins during active CE cycle |
| OEL / OER | Output Enable (Left / Right) | Active-low enables output drivers; used with CE and R/W to gate valid data onto bus |
| UBL / UBR, LBL / LBR | Upper/Lower Byte Select (Left / Right) | Enable I/O[15:8] or I/O[7:0] independently - essential for 8-bit microprocessor bus interfacing |
| SEML / SEMR | Semaphore Enable (Left / Right) | Active-low enables access to eight shared semaphore flags via I/O[0] write and full I/O[15:0] read |
| BUSYL / BUSYR | Busy Flag (Left / Right) | When M/S = H (Master), BUSY is output indicating port contention; when M/S = L (Slave), BUSY is input for synchronization |
| INTL / INTR | Interrupt Flag (Left / Right) | Open-drain push-pull output signals semaphore or arbitration event - requires external pull-up |
| A0L–A11L / A0R–A11R | Address Inputs (Left / Right) | 12-bit address bus per port selects one of 4,096 locations; no internal address latching |
| I/O0L–I/O15L / I/O0R–I/O15R | Data I/O (Left / Right) | Bidirectional 16-bit data bus per port; high-impedance when CE inactive or OE disabled |
| M/S | Master/Slave Select | High = BUSY output (Master); Low = BUSY input (Slave) - configures cascaded multi-device arbitration topology |
| VCC / GND | Power / Ground | Multiple VCC (pins 13, 25, 46, 67, 73) and GND (pins 14, 26, 47, 68, 74, 83) pins ensure low-impedance supply distribution |
Key Features
| Feature | Design Value |
|---|---|
| True Dual-Port Architecture | Simultaneous independent reads/writes to same or different addresses - eliminates software polling or external arbitration logic |
| On-Chip Semaphore Logic | Eight hardware semaphore flags accessible via A0–A2 and SEM enable - enables lock-free inter-processor synchronization without firmware overhead |
| Master/Slave Cascading Support | Dedicated M/S pin and BUSY flag routing - allows expansion to 32-bit+ data width with zero additional discrete components |
| Asynchronous Port Operation | No clock required; each port operates independently with full address/control/data isolation - ideal for heterogeneous processor interfacing |
| TTL-Compatible I/O Levels | VIL ≤ 0.8 V, VOH ≥ 2.4 V at 4 mA - ensures direct interface with legacy 5V microcontrollers and FPGAs without level shifters |
Applications
| Avionics Data Buffering | Industrial PLC Memory Sharing |
|---|---|
|
Use Scenario: Real-time exchange of sensor telemetry and actuator commands between flight control and navigation processors in DO-254-certified systems. IC Role / Device Role / Timing Role: Dual-port SRAM acting as non-blocking shared memory buffer with deterministic <20 ns read latency and hardware semaphore coherency. Use Value: Eliminates CPU stalls during cross-processor data handoff, meeting hard real-time deadlines under –40°C to +85°C operational envelope. |
Use Scenario: Coordinating motion control sequences between multiple PLC CPUs in synchronized manufacturing cells. IC Role / Device Role / Timing Role: Shared memory hub enabling atomic read-modify-write operations via semaphore flags across distributed ladder logic execution engines. Use Value: Guarantees data consistency without software locks, reducing scan cycle jitter and improving throughput in deterministic industrial Ethernet environments. |
| Medical Imaging Frame Store | Military Radar Signal Processing |
|
Use Scenario: Storing digitized ultrasound frames between acquisition FPGA and display processor in portable diagnostic equipment. IC Role / Device Role / Timing Role: High-bandwidth frame buffer supporting concurrent 16-bit pixel stream ingestion and RGB output generation. Use Value: Sustains >40 MB/s sustained bandwidth with zero wait states, enabling real-time image rendering while maintaining Class II medical EMC compliance. |
Use Scenario: Interfacing radar front-end ADCs with DSP cores in EW/ESM systems requiring radiation-tolerant, wide-temperature memory. IC Role / Device Role / Timing Role: Radiation-hardened-adjacent dual-port memory providing fault-resilient data exchange between analog and digital signal chains. Use Value: Delivers verified 20 ns timing stability across –40°C to +85°C with no derating, supporting MIL-STD-810G environmental qualification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C133-20VC | 4K × 16, 20 ns, 5V, 84-pin PLCC - identical speed and package but Cypress implementation lacks native M/S cascading logic | Requires external BUSY arbitration logic for multi-device configurations; not drop-in for master/slave topologies | Select when existing design uses Cypress toolchain or when cascading is unnecessary |
| AS7C34096B-20JCIN | 4K × 16, 20 ns, 5V, 84-pin PLCC - Alliance Memory second-source with same AC/DC specs but no integrated semaphore block | External semaphore management required via GPIO or dedicated logic; increases BOM count and layout complexity | Select for cost-sensitive industrial programs where semaphore usage is minimal or handled in firmware |
Compared with CY7C133-20VC and AS7C34096B-20JCIN, the 7024S20PFI uniquely integrates Master/Slave arbitration and hardware semaphore logic - reducing system-level component count and eliminating timing-critical external arbitration paths in multi-processor designs.
Availability
7024S20PFI is available at Aetrix Electronics and suitable for avionics data buffering, industrial PLC memory sharing, medical imaging frame stores, and military radar signal processing requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 7024S20PFI 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
IDT (Integrated Device Technology) is a fabless semiconductor company specializing in high-performance timing, memory, and interface solutions, now part of Renesas Electronics since 2019.
The IDT7024 family was designed specifically for deterministic inter-processor communication in real-time embedded systems - emphasizing low-latency dual-port access, hardware arbitration, and industrial/military temperature reliability.
FAQ
What is the maximum operating temperature range certified for the 7024S20PFI?
The 7024S20PFI is rated for industrial temperature operation from –40°C to +85°C. This range is validated per manufacturer specifications and applies to all DC and AC parameters including 20 ns access time, power consumption, and I/O voltage levels. It is not rated for military (–55°C to +125°C) or commercial (0°C to +70°C) grades - the 'I' suffix in the part number explicitly denotes industrial qualification.
Does the 7024S20PFI support battery backup data retention?
No, the 7024S20PFI does not support battery backup data retention. The 'S' suffix indicates the standard-power variant; only the 'L' variant (e.g., 7024L20PFI) guarantees 2V data retention. The 7024S20PFI requires continuous 4.5–5.5 V supply for volatile operation and enters full standby (5 mW) when CE is deasserted - but loses data below VCC min.
How does the M/S pin configure arbitration behavior in a multi-device 7024S20PFI system?
When M/S = HIGH, the 7024S20PFI operates as Master: BUSY is an output that asserts when the local port detects address contention with the Slave device. When M/S = LOW, it operates as Slave: BUSY is an input monitored before initiating writes. This pair forms a hardware-enforced priority scheme - the Master always wins arbitration, and no external logic is needed to cascade devices for wider data paths.
Can both ports of the 7024S20PFI perform simultaneous reads to the same memory location?
Yes, the 7024S20PFI uses true dual-ported memory cells that allow completely independent, simultaneous reads from the same address on left and right ports. This capability is inherent to the cell architecture and requires no special timing or control sequencing - both ports output valid data within their respective tAA (20 ns max) after address assertion, with no BUSY assertion or arbitration delay.
What package type is used for the 7024S20PFI, and are there footprint-compatible alternatives?
The 7024S20PFI uses an 84-pin Plastic Leaded Chip Carrier (PLCC) package per JEDEC MO-047AC. While IDT also offered the same speed grade in 84-pin PGA, Flatpack, and 100-pin TQFP, the 'PFI' suffix specifically denotes PLCC. No pin-compatible alternatives exist across manufacturers due to unique BUSY/SEM/INT pin assignments - migration requires PCB redesign even for functionally similar dual-port SRAMs.
7024S20PFI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 100-LQFP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Dual Port, Asynchronous
- Memory Size:
- 64Kbit
- Memory Organization:
- 4K x 16
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 20ns
- Access Time:
- 20 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 100-TQFP (14x14)
7024S20PFI FAQ
1.How can I place an order for 7024S20PFI through Aetrix?
Please submit a Request for Quotation (RFQ) for 7024S20PFI 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 7024S20PFI reliable?
The price and inventory of 7024S20PFI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7024S20PFI is usually 5 days.
3.What payment methods are accepted for 7024S20PFI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7024S20PFI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7024S20PFI?
7024S20PFI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7024S20PFI 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 7024S20PFI?
For technical support, including 7024S20PFI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7024S20PFI requirements.
6.How does Aetrix verify that 7024S20PFI is sourced from the original manufacturer or authorized distributors?
All 7024S20PFI 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 7024S20PFI meets industry standards.
7.What is the process for return or replacement of 7024S20PFI?
All 7024S20PFI units undergo pre-shipment inspection (PSI). If there is an issue with 7024S20PFI, 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 7024S20PFI part is unused and in its original packaging.
Return procedure for 7024S20PFI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7024S20PFI Tags
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AT24C02C-XHM-T
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