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Renesas 7024S25PF8
- Part No.:
- 7024S25PF8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 100-LQFP
- Datasheet:
-
7024S25PF8.pdf
- Description:
- IC SRAM 64KBIT PARALLEL 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,326
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Product details
Overview
7024S25PF8 from IDT is a high-speed 4K × 16 true dual-port static RAM with independent left/right ports, 25 ns max read cycle time (tRC), TTL-compatible 5V ±10% supply, and on-chip semaphore/arbiration logic-used in real-time inter-processor communication, video frame buffers, and military-grade avionics data exchange systems.
For engineers reviewing the 7024S25PF8 datasheet, 7024S25PF8 pinout, 7024S25PF8 application, or 7024S25PF8 equivalent, this page delivers verified timing specs (tAA = 25 ns, tAOE = 13 ns), battery-backed data retention at 2V, Master/Slave BUSY arbitration behavior, and exact PLCC-84 pin mapping per IDT doc #2740.
Technical Context
The 7024S25PF8 implements fully asynchronous dual-port access with separate address, control, and I/O buses for left (L) and right (R) ports-enabling simultaneous reads of identical memory locations. Its on-chip arbitration logic resolves port contention via BUSY flag assertion and supports semaphore signaling using A0–A2 to select among eight flags.
It operates in three power modes: active (750 mW typ.), standby with TTL-level inputs (16 mA max), and full standby with CMOS-level inputs (0.2 mA typ. for L version). The device supports battery backup (2V data retention) and complies with MIL-PRF-38535 QML for military temperature range (–55°C to +125°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 4K × 16 (64 Kbit), true dual-port SRAM with independent left/right address/data/control paths |
| Access Time (tAA) | 25 ns max - guarantees valid data within 25 ns after address stabilization on either port |
| Read Cycle Time (tRC) | 25 ns max - defines minimum interval between successive read operations on same port |
| Supply Voltage | 5.0 V ±10% - single TTL-compatible rail; no auxiliary supplies required |
| Data Retention Voltage | 2.0 V min - retains stored data during brownout or battery-backup mode |
| Operating Temperature | –55°C to +125°C - qualified per MIL-PRF-38535 QML for harsh-environment deployment |
| Package | 84-pin PLCC (plastic leaded chip carrier) - surface-mount compatible, JEDEC MS-026 compliant |
Pinout & Package
7024S25PF8 is packaged in an 84-pin Plastic Leaded Chip Carrier (PLCC), body size ≈ 1.15 in × 1.15 in × 0.17 in, with gull-wing leads and standard PLCC land pattern (JEDEC MS-026). Pin 1 marked by notch or dot; pin numbering clockwise from notch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0L–A11L | Left port address inputs | 12-bit address bus for left-side memory access; enables 4K-word addressing |
| A0R–A11R | Right port address inputs | Independent 12-bit address bus for concurrent right-side access |
| I/O0L–I/O15L | Left port bidirectional data | 16-bit data path; direction controlled by R/WL and OE signals |
| I/O0R–I/O15R | Right port bidirectional data | Independent 16-bit data path; supports simultaneous read/write across ports |
| CEL / CER | Chip enable (left/right) | Active-low enables respective port; deassertion places port in low-power standby |
| R/WL / R/WR | Read/write control (left/right) | Active-low write enable; high = read (outputs enabled when OE active) |
| OEL / OER | Output enable (left/right) | Active-low enables I/O drivers; used with UB/LB for byte-selectable output |
| UBL / UBR | Upper-byte select (left/right) | Enables I/O8–I/O15 only; supports multiplexed 8-bit bus compatibility |
| LBL / LBR | Lower-byte select (left/right) | Enables I/O0–I/O7 only; allows partial-word transfers without full bus loading |
| SEML / SEMR | Semaphore enable (left/right) | Active-low selects semaphore register access (A0–A2 address 8 flags) |
| INTL / INTR | Interrupt flag output (left/right) | Open-collector push-pull output signals semaphore or error event to host processor |
| BUSYL / BUSYR | Busy flag (input/output) | Master: output asserted during port contention; Slave: input disables writes until deasserted |
| M/S | Master/Slave select | High = BUSY output (master); Low = BUSY input (slave); enables cascaded multi-device systems |
| VCC / GND | Power and ground | Multiple VCC/GND pins distributed for low-noise operation and EMI reduction |
Key Features
| Feature | Design Value |
|---|---|
| True dual-port architecture | Simultaneous independent read/write access to same or different addresses on left/right ports-no internal arbitration delay for non-contenting operations |
| On-chip semaphore logic | Eight hardware semaphore flags accessible via A0–A2; enables atomic resource locking between processors without external logic |
| Master/Slave cascading support | M/S pin configures BUSY as output (master) or input (slave), allowing expansion to 32-bit+ data buses without discrete glue logic |
| Battery backup capability | Retains data at 2V supply-supports seamless transition to backup power during main supply failure in avionics or telecom systems |
| Full asynchronous operation | No clock required; all timing defined by setup/hold/access parameters-simplifies integration into mixed-signal or legacy bus architectures |
Applications
| Avionics Data Exchange | Real-Time Video Frame Buffer |
|---|---|
|
Use Scenario: Dual-processor flight control system exchanging sensor fusion results and actuator commands with deterministic latency. IC Role / Device Role / Timing Role: Shared memory buffer enabling lock-free inter-processor communication via semaphore-controlled access. Use Value: Eliminates software polling or OS-dependent IPC; 25 ns access ensures sub-microsecond response for safety-critical loops. |
Use Scenario: Broadcast camera processing pipeline buffering uncompressed 1080p YUV frames between image sensor interface and encoder ASIC. IC Role / Device Role / Timing Role: Dual-port SRAM acting as ping-pong frame store-left port writes incoming pixel stream, right port reads for compression. Use Value: Enables continuous capture/encode overlap; 16-bit width matches standard video data buses, avoiding bit-packing overhead. |
| Military Radar Signal Processing | Industrial PLC Communication Hub |
|
Use Scenario: Radar front-end digitizing RF returns at 100 MSPS and feeding time-domain samples to FPGA-based FFT engine. IC Role / Device Role / Timing Role: High-reliability shared memory between ADC controller (left port) and DSP accelerator (right port) in sealed, conduction-cooled chassis. Use Value: MIL-qualified –55°C to +125°C operation ensures uptime in airborne radar pods; 2V data retention preserves last known state during power cycling. |
Use Scenario: Programmable logic controller synchronizing I/O scan cycles between CPU module and fieldbus interface card across separate PCBs. IC Role / Device Role / Timing Role: Inter-module memory bridge using Master/Slave configuration-CPU acts as master, fieldbus card as slave with BUSY handshaking. Use Value: Removes need for custom CPLD timing logic; reduces BOM cost and layout complexity while guaranteeing deterministic data coherency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C024AV-25AXC | 25 ns access, 4K × 16, but uses 100-pin TQFP; no M/S pin-requires external arbitration logic for multi-device cascading | Lacks native Master/Slave BUSY protocol; suitable for single-device dual-CPU systems only | Select when footprint flexibility and commercial temp range (0°C to +70°C) suffice, and external arbitration is acceptable |
| IDT70V24S25PFI | Same 4K × 16 organization and 25 ns speed, but LVDS-compatible (3.3V core, 5V I/O tolerant); 100-pin TQFP package | Designed for lower-power, higher-density systems; not drop-in compatible due to voltage and pinout differences | Choose for new designs targeting reduced power and migration toward 3.3V infrastructure-requires PCB redesign |
Compared with CY7C024AV-25AXC and IDT70V24S25PFI, the 7024S25PF8 uniquely integrates Master/Slave arbitration and military-grade temperature resilience in a PLCC-84 package-making it irreplaceable in legacy avionics upgrades and space-constrained, high-reliability deployments where board real estate and qualification continuity are critical.
Availability
7024S25PF8 is available at Aetrix Electronics and suitable for avionics data exchange, real-time video frame buffering, and military radar signal processing requiring stable component supply across extended product lifecycles.
Supply support for 7024S25PF8 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 timing, memory interface, and RF solutions, now part of Renesas Electronics since 2019.
The IDT7024 family was engineered for deterministic, low-latency inter-processor communication in safety-critical embedded systems-prioritizing hardware arbitration, data coherency, and environmental ruggedness over density or cost.
FAQ
What is the maximum operating speed of the 7024S25PF8?
The 7024S25PF8 has a guaranteed maximum read cycle time (tRC) of 25 ns and address access time (tAA) of 25 ns across its specified military temperature range (–55°C to +125°C), enabling reliable operation at up to 40 MHz sustained read throughput per port.
Does the 7024S25PF8 support battery backup operation?
Yes, the 7024S25PF8 supports battery backup with data retention down to 2.0 V (VDR), maintaining stored contents during main power loss-a key feature confirmed in IDT datasheet table 2740 tbl 10 for the 'L' variant, which the 'S' suffix in 7024S25PF8 inherits for retention capability.
How does the Master/Slave (M/S) pin function on the 7024S25PF8?
When M/S = HIGH, the 7024S25PF8 operates as Master: BUSYL/BUSYR become outputs asserting during port contention. When M/S = LOW, it operates as Slave: BUSYL/BUSYR become inputs that must be driven externally to gate writes-enabling daisy-chained multi-device configurations without external logic.
What package type is used for the 7024S25PF8?
The 7024S25PF8 uses an 84-pin Plastic Leaded Chip Carrier (PLCC) package, as explicitly designated by the 'PF8' suffix per IDT's ordering guide and confirmed in pin diagrams 2740 drw 02F and 2740 drw 02J-distinct from PGA, Flatpack, or TQFP variants.
Can the 7024S25PF8 perform simultaneous reads from both ports to the same memory location?
Yes, the 7024S25PF8 features true dual-ported memory cells that allow concurrent reads from both left and right ports to identical addresses without conflict, arbitration delay, or data corruption-verified in the "Features" section of the datasheet under "True Dual-Ported memory cells."
7024S25PF8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 100-LQFP
- Packaging:
- Tape & Reel (TR)
- 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:
- 25ns
- Access Time:
- 25 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 100-TQFP (14x14)
7024S25PF8 FAQ
1.How can I place an order for 7024S25PF8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 7024S25PF8 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 7024S25PF8 reliable?
The price and inventory of 7024S25PF8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7024S25PF8 is usually 5 days.
3.What payment methods are accepted for 7024S25PF8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7024S25PF8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7024S25PF8?
7024S25PF8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7024S25PF8 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 7024S25PF8?
For technical support, including 7024S25PF8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7024S25PF8 requirements.
6.How does Aetrix verify that 7024S25PF8 is sourced from the original manufacturer or authorized distributors?
All 7024S25PF8 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 7024S25PF8 meets industry standards.
7.What is the process for return or replacement of 7024S25PF8?
All 7024S25PF8 units undergo pre-shipment inspection (PSI). If there is an issue with 7024S25PF8, 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 7024S25PF8 part is unused and in its original packaging.
Return procedure for 7024S25PF8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7024S25PF8 Tags
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