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Home > Products > Integrated Circuits (ICs) > Memory > Memory

Renesas 7024S17PF8

Name: 7024S17PF8
Brand: Renesas
SKU: 7024S17PF8
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 7024S17PF8

Manufacturer:: Renesas

Category:: Memory

Package:: 100-LQFP

Datasheet:: 7024S17PF8.pdf

Description:: IC SRAM 64KBIT PARALLEL 100TQFP

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Product details

Overview

7024S17PF8 from IDT is a high-speed 4K × 16 true dual-port static RAM with independent left/right ports, 17 ns maximum read cycle time (commercial grade), TTL-compatible 5V ±10% supply, and on-chip semaphore arbitration logic. It enables simultaneous asynchronous access to the same memory location and supports master/slave cascading for 32-bit+ bus expansion in real-time inter-processor communication systems.

For engineers reviewing the 7024S17PF8 datasheet, 7024S17PF8 pinout, 7024S17PF8 application, or 7024S17PF8 equivalent, key selection considerations include its 17 ns access timing, dual-port arbitration behavior, BUSY/INT flag signaling, battery-backed data retention at 2V (L-version), and compatibility with 84-pin PLCC packaging for legacy industrial control and military avionics designs.

Technical Context

The 7024S17PF8 implements fully asynchronous dual-port operation with separate address, control, and I/O buses per port - enabling concurrent reads/writes without external arbitration logic. Its on-chip arbitration resolves port contention via BUSY flag assertion and supports semaphore flag exchange across ports using A0–A2 addressing and SEM enable.

It features two independent chip-enable paths (CEL/CER), byte-select controls (UBL/UBR, LBL/LBR), and R/WL/R/WR signals per port, allowing granular upper/lower byte writes and full 16-bit transfers. The device operates in commercial temperature range (0°C to +70°C) and retains data at 2V in low-power standby mode when configured as IDT7024L variant.

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 interfaces
Access Time (tAA)	17 ns max - defines minimum time from stable address to valid output data on either port
Read Cycle Time (tRC)	17 ns max - determines maximum sustained read throughput (58.8 MHz) without wait states
Supply Voltage	5.0 V ±10% - compatible with standard TTL logic families and legacy 5V system rails
Operating Temperature	0°C to +70°C - commercial-grade rating suitable for non-extended-environment embedded systems
Package	84-pin PLCC (Plastic Leaded Chip Carrier) - surface-mount, leaded package with 0.050" pitch and JEDEC MO-049 compliance
Power Consumption	Active: 170 mA typ (850 mW); Standby (ISB1): 20 mA typ - enables low-idle power in multi-processor handshake protocols

Pinout & Package

7024S17PF8 is housed in an 84-pin Plastic Leaded Chip Carrier (PLCC) package with 0.050" lead pitch, JEDEC MO-049 compliant footprint, and body dimensions approximately 1.15 in × 1.15 in × 0.17 in. Pin 1 is marked by a corner notch; pins are numbered counterclockwise starting from the notch.

Pin/Terminal	Circuit Role	Design Meaning
A0L–A11L	Left Port Address Inputs	12-bit address bus for left port; selects one of 4K memory locations independently of right port
A0R–A11R	Right Port Address Inputs	12-bit address bus for right port; enables concurrent access to same or different addresses
I/O0L–I/O15L	Left Port Bidirectional Data	16-bit data path; direction controlled by R/WL and OE (OEL); supports byte-select via UBL/LBL
I/O0R–I/O15R	Right Port Bidirectional Data	16-bit data path; direction controlled by R/WR and OE (OER); supports byte-select via UBR/LBR
CEL / CER	Chip Enable (Left/Right)	Active-low enables respective port; when both high, device enters ISB1 standby mode (~20 mA)
R/WL / R/WR	Read/Write Control (Left/Right)	Active-low write enable; high = read (if OE active); supports simultaneous read/write on same location
OEL / OER	Output Enable (Left/Right)	Active-low enables output drivers; used with R/W to control read vs. write direction and tri-state behavior
UBL / UBR	Upper-Byte Select (Left/Right)	Active-low enables I/O8–I/O15; allows multiplexed 8-bit bus interface or partial-word writes
LBL / LBR	Lower-Byte Select (Left/Right)	Active-low enables I/O0–I/O7; complements UBL/UBR for byte-granular memory access
SEML / SEMR	Semaphore Enable (Left/Right)	Active-low enables access to 8-bit semaphore register (addressed by A0–A2); critical for inter-port synchronization
INTL / INTR	Interrupt Flag Output (Left/Right)	Open-drain or push-pull (per note 2) active-low interrupt signal indicating semaphore or BUSY event
BUSYL / BUSYR	Busy Flag (Left/Right)	Master: BUSY is output; Slave: BUSY is input - used for port-to-port handshaking during contention
M/S	Master/Slave Select	High = Master (BUSY output); Low = Slave (BUSY input); enables daisy-chained multi-device configurations
VCC / GND	Power Supply	Multiple VCC (pins 13, 25, 46, 67, 73) and GND (pins 14, 26, 47, 68, 74, 83) pins ensure low-noise, low-impedance distribution

Key Features

Feature	Design Value
True Dual-Port Architecture	Enables simultaneous read/write to identical memory locations - eliminates need for external arbitration logic in tightly coupled dual-CPU systems
On-Chip Semaphore Logic	Eight hardware semaphore flags accessible via A0–A2 and SEM enable - provides atomic resource locking without software overhead or external latches
Master/Slave Cascading Support	M/S pin configures device as master (BUSY output) or slave (BUSY input) - simplifies expansion to 32-bit+ data buses without discrete glue logic
Full Asynchronous Operation	No clock required; all timing defined by setup/hold and access parameters - ideal for mixed-clock-domain or event-driven architectures
Battery Backup Data Retention	Operates down to 2V VCC with <4 mA ISB3 current - maintains memory state during main power loss in mission-critical avionics and telecom systems
TTL-Compatible Interface	VIH = 2.2 V min, VIL = 0.8 V max - ensures direct interfacing with legacy 5V microcontrollers, FPGAs, and ASICs without level-shifting

Applications

Real-Time Inter-Processor Communication	Digital Signal Processor (DSP) Co-Processing
Use Scenario: Two independent CPUs share sensor data and control commands via shared memory with deterministic latency. IC Role / Device Role / Timing Role: 7024S17PF8 serves as the dual-access buffer between processors, using BUSY/INT flags and semaphores to prevent race conditions. Use Value: Eliminates polling delays and software locks; 17 ns access ensures sub-microsecond inter-core handshaking in radar subsystems.	Use Scenario: A host MCU offloads FFT computation to a dedicated DSP, exchanging coefficient tables and results through shared RAM. IC Role / Device Role / Timing Role: 7024S17PF8 acts as zero-wait-state data exchange buffer, with separate left/right I/Os mapped to each processor's data bus. Use Value: Enables pipelined processing - host writes next frame while DSP reads current frame, sustaining >50 MB/s effective throughput.
Military Avionics Data Buffering	Industrial Motion Controller Shared Memory
Use Scenario: Flight control computer and inertial measurement unit (IMU) exchange telemetry and actuator commands in MIL-STD-1553B-adjacent timing-critical loops. IC Role / Device Role / Timing Role: 7024S17PF8 provides radiation-tolerant (ceramic variants available), temperature-stable dual-port storage with deterministic 17 ns response. Use Value: Guarantees worst-case 17 ns read latency under 0°C to +70°C, satisfying DO-254 Level A timing budgets for flight-critical functions.	Use Scenario: PLC-based motion controller synchronizes servo axis positions and trajectory updates between FPGA motion engine and ARM application processor. IC Role / Device Role / Timing Role: 7024S17PF8 functions as the central shared memory hub, with semaphore flags coordinating axis parameter updates and status reporting. Use Value: Prevents position jitter by ensuring atomic write/read of 16-bit encoder counts and PID coefficients - no dropped updates during high-speed moves.

Real-Time Inter-Processor Communication

Digital Signal Processor (DSP) Co-Processing

Use Scenario: Two independent CPUs share sensor data and control commands via shared memory with deterministic latency.

IC Role / Device Role / Timing Role: 7024S17PF8 serves as the dual-access buffer between processors, using BUSY/INT flags and semaphores to prevent race conditions.

Use Value: Eliminates polling delays and software locks; 17 ns access ensures sub-microsecond inter-core handshaking in radar subsystems.

Use Scenario: A host MCU offloads FFT computation to a dedicated DSP, exchanging coefficient tables and results through shared RAM.

IC Role / Device Role / Timing Role: 7024S17PF8 acts as zero-wait-state data exchange buffer, with separate left/right I/Os mapped to each processor's data bus.

Use Value: Enables pipelined processing - host writes next frame while DSP reads current frame, sustaining >50 MB/s effective throughput.

Military Avionics Data Buffering

Industrial Motion Controller Shared Memory

Use Scenario: Flight control computer and inertial measurement unit (IMU) exchange telemetry and actuator commands in MIL-STD-1553B-adjacent timing-critical loops.

IC Role / Device Role / Timing Role: 7024S17PF8 provides radiation-tolerant (ceramic variants available), temperature-stable dual-port storage with deterministic 17 ns response.

Use Value: Guarantees worst-case 17 ns read latency under 0°C to +70°C, satisfying DO-254 Level A timing budgets for flight-critical functions.

Use Scenario: PLC-based motion controller synchronizes servo axis positions and trajectory updates between FPGA motion engine and ARM application processor.

IC Role / Device Role / Timing Role: 7024S17PF8 functions as the central shared memory hub, with semaphore flags coordinating axis parameter updates and status reporting.

Use Value: Prevents position jitter by ensuring atomic write/read of 16-bit encoder counts and PID coefficients - no dropped updates during high-speed moves.

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-15AXC	15 ns access, 3.3V core (5V tolerant I/O), 100-pin TQFP only - no PLCC option; higher speed but incompatible voltage domain	Requires level translation in 5V systems; better suited for new 3.3V designs with higher bandwidth needs	Select if migrating to modern low-voltage architecture and board redesign is feasible; not drop-in for 7024S17PF8 PLCC footprint
IDT70V24L15PF	15 ns, low-power L-version, same 84-pin PLCC, but rated for -40°C to +85°C industrial temp - wider operating range	Supports extended temperature environments (e.g., factory automation, outdoor base stations) where 0°C–70°C is insufficient	Choose for enhanced reliability in harsh thermal environments; pinout and logic identical - direct replacement with improved spec margin

Compared with CY7C024AV-15AXC and IDT70V24L15PF, the 7024S17PF8 offers optimal fit for legacy 5V commercial systems requiring PLCC packaging and proven field reliability, while the IDT70V24L15PF extends operational range without layout change, and the Cypress part demands voltage redesign but delivers faster timing.

Availability

7024S17PF8 is available at Aetrix Electronics and suitable for real-time inter-processor communication, military avionics data buffering, and industrial motion controller shared memory applications requiring stable component supply, long-term obsolescence management, and traceable sourcing.

Supply support for 7024S17PF8 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) was a fabless semiconductor company specializing in timing, memory interface, RF, and high-performance interconnect solutions before its acquisition by Renesas Electronics in 2019.

The IDT7024 family was designed specifically for deterministic, low-latency dual-processor communication in aerospace, defense, and industrial control systems - emphasizing hardware arbitration, semaphore support, and robust 5V operation.

FAQ

What is the maximum guaranteed access time for the 7024S17PF8?

The 7024S17PF8 guarantees a maximum address access time (tAA) of 17 ns over the commercial temperature range (0°C to +70°C) and 5.0 V ±10% supply. This value is production-tested and applies to both left and right ports under specified DC and AC test conditions, ensuring deterministic timing for hard real-time systems.

Does the 7024S17PF8 support battery backup operation?

The 7024S17PF8 is the S-version (standard power), which does not guarantee 2V data retention. Battery backup operation with 2V VCC and ≤4 mA ISB3 current is specified only for the L-version (e.g., 7024L17PF8). The 'S' suffix confirms standard active power profile - use 7024L17PF8 if data retention during main power loss is required.

Can the 7024S17PF8 be used in a master/slave configuration with other IDT7024 devices?

Yes - the 7024S17PF8 supports master/slave cascading via the M/S pin: set M/S = HIGH for master (BUSY output), LOW for slave (BUSY input). When cascaded, multiple 7024S17PF8 devices enable seamless 32-bit or wider word expansion without external logic, maintaining full-speed error-free operation per the IDT MASTER/SLAVE Dual-Port RAM architecture.

What package type is used for the 7024S17PF8?

The 7024S17PF8 uses an 84-pin Plastic Leaded Chip Carrier (PLCC) package, identified by the 'PF' suffix in the part number. It conforms to JEDEC MO-049, has a 0.050" lead pitch, and measures approximately 1.15 in × 1.15 in × 0.17 in - a widely supported surface-mount package in legacy industrial and defense PCB assemblies.

How does semaphore functionality work on the 7024S17PF8?

Semaphore access on the 7024S17PF8 is enabled by asserting SEM = LOW while keeping CE and byte enables HIGH. The eight semaphore flags are addressed using A0–A2, written via I/O0, and read across all 16 I/O lines. This hardware mechanism provides atomic, lock-free resource synchronization between ports - eliminating software overhead and race conditions in dual-CPU systems.

7024S17PF8 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:: 17ns

Access Time:: 17 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)

7024S17PF8 FAQ

1.How can I place an order for 7024S17PF8 through Aetrix?

Please submit a Request for Quotation (RFQ) for 7024S17PF8 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 7024S17PF8 reliable?

The price and inventory of 7024S17PF8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7024S17PF8 is usually 5 days.

3.What payment methods are accepted for 7024S17PF8?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7024S17PF8 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 7024S17PF8?

7024S17PF8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 7024S17PF8 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 7024S17PF8?

For technical support, including 7024S17PF8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7024S17PF8 requirements.

6.How does Aetrix verify that 7024S17PF8 is sourced from the original manufacturer or authorized distributors?

All 7024S17PF8 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 7024S17PF8 meets industry standards.

7.What is the process for return or replacement of 7024S17PF8?

All 7024S17PF8 units undergo pre-shipment inspection (PSI). If there is an issue with 7024S17PF8, 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 7024S17PF8 part is unused and in its original packaging.

Return procedure for 7024S17PF8:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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