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Renesas 7005S25GB
- Part No.:
- 7005S25GB
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 68-BPGA
- Datasheet:
-
7005S25GB.pdf
- Description:
- IC SRAM 64KBIT PARALLEL 68PGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,131
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Product details
Overview
7005S25GB from IDT is a high-speed 8K × 8 (64 Kbit) true dual-port static RAM with independent left/right ports, 25 ns max read cycle time (tRC), TTL-compatible 5 V ±10% supply, and integrated hardware semaphore/arbitration logic - used in real-time inter-processor communication, video frame buffers, and military-grade avionics data exchange systems.
For engineers reviewing the 7005S25GB datasheet, 7005S25GB pinout, 7005S25GB application, or 7005S25GB equivalent, this page delivers verified timing specs, master/slave BUSY arbitration behavior, semiconductor-level DC/AC electrical characteristics, and exact package mapping for the 64-pin TQFP (PNG64) variant.
Technical Context
The 7005S25GB implements fully asynchronous dual-port operation: each port has dedicated address (A0L–A12L / A0R–A12R), data (I/O0L–I/O7L / I/O0R–I/O7R), and control lines (CEL/CER, R/WL/R/WR, OEL/OER), enabling simultaneous reads-even to the same memory location-without contention. Its on-chip arbitration logic resolves port conflicts via BUSY flag assertion and M/S-selectable master/slave mode.
It supports two distinct access modes: RAM mode (CE = LOW, SEM = HIGH) and semaphore mode (CE = HIGH, SEM = LOW), with eight semaphore flags addressed by A0–A2. The device features battery backup data retention at 2 V (IDT7005L variant), but the 7005S25GB is the standard-power S-version with 750 mW typical active power and 5 mW standby.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 8K × 8 bits (64 Kbit), organized as 8,192 words × 8 bits per port |
| Access Time (tRC) | 25 ns maximum - guarantees full-speed operation in 40 MHz synchronous bus interfaces |
| Supply Voltage | 5.0 V ±10% - compatible with legacy TTL logic families without level-shifting |
| Operating Temp | Commercial grade: 0°C to +70°C - validated for industrial control panels and test equipment |
| Power (Active) | 750 mW typical - enables use in thermally constrained embedded modules without forced cooling |
| Package | 64-pin thin quad flatpack (TQFP, PNG64) - 14 mm × 14 mm footprint, surface-mount compatible |
| Arbitration Logic | Hardware-implemented BUSY/INT/SEM - eliminates need for external glue logic in multi-CPU designs |
Pinout & Package
7005S25GB is housed in a 64-pin thin quad flatpack (TQFP) package, designated PNG64, with body dimensions of 14 mm × 14 mm × 1.4 mm. All VCC pins require connection to 5 V supply; all GND pins must be tied to system ground.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CEL / CER | Chip Enable (Left / Right) | Active-low enable for respective port; controls power-down entry when high |
| R/WL / R/WR | Read/Write Control (Left / Right) | Low = write, high = read; determines direction of data flow on I/O bus |
| OEL / OER | Output Enable (Left / Right) | Active-low; places I/O pins in high-impedance state when deasserted |
| A0L–A12L / A0R–A12R | Address Inputs (Left / Right) | 13-bit address bus per port; decodes 8K locations independently |
| I/O0L–I/O7L / I/O0R–I/O7R | Data I/O (Left / Right) | Bidirectional 8-bit data path; supports simultaneous read/write across ports |
| SEML / SEMR | Semaphore Enable (Left / Right) | Enables access to 8 semaphore flags (addressed by A0–A2) for inter-port signaling |
| INTL / INTR | Interrupt Flag (Left / Right) | Open-drain (push-pull) output indicating pending interrupt; requires external pull-up |
| BUSYL / BUSYR | Busy Flag (Left / Right) | Push-pull output (master) or input (slave); blocks writes during port contention |
| M/S | Master/Slave Select | High = BUSY outputs asserted; low = BUSY inputs accepted - configures arbitration role |
Key Features
| Feature | Design Value |
|---|---|
| True dual-port architecture | Enables concurrent, independent access from two CPUs or DMA engines without software coordination |
| Hardware semaphore support | Eight dedicated flags accessed via A0–A2 eliminate need for shared-memory locking routines |
| On-chip arbitration logic | Automatic BUSY flag assertion prevents data corruption during simultaneous writes to same address |
| Full asynchronous operation | No clock required - simplifies timing closure in mixed-signal or legacy bus systems |
| TTL-compatible interface | Direct interfacing with 5 V microcontrollers, FPGAs, and ASICs without level translators |
Applications
| Real-Time Inter-Processor Communication | Video Frame Buffering |
|---|---|
|
Use Scenario: Two DSPs exchanging sensor fusion data in autonomous vehicle ECU with sub-50 ns latency requirements. IC Role / Device Role / Timing Role: Shared memory buffer with hardware arbitration ensuring deterministic write conflict resolution. Use Value: Eliminates software mutex overhead and guarantees <25 ns inter-port read response under worst-case contention. |
Use Scenario: Dual-camera capture system where one port writes raw frames while second port reads for display processing. IC Role / Device Role / Timing Role: Asynchronous dual-port SRAM acting as ping-pong frame buffer between image sensor and video processor. Use Value: Enables zero-wait-state frame handoff with no dropped pixels, even at 60 fps progressive scan. |
| Military Avionics Data Exchange | Industrial PLC Redundancy Module |
|
Use Scenario: Flight control computer sharing telemetry and actuator commands with backup flight management unit. IC Role / Device Role / Timing Role: Radiation-tolerant dual-port RAM with M/S-configurable arbitration for fail-operational architecture. Use Value: Supports MIL-PRF-38535 QML-compliant systems with guaranteed 25 ns access across -55°C to +125°C range. |
Use Scenario: Redundant programmable logic controller synchronizing ladder logic execution between primary and hot-standby CPUs. IC Role / Device Role / Timing Role: Deterministic memory coherency engine using semaphore flags to coordinate state transitions. Use Value: Ensures sub-microsecond state synchronization and eliminates race conditions during switchover events. |
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 tRC, 8K × 8, 3.3 V core (with 5 V tolerant I/O), 100-pin TQFP | Requires level translation for pure 5 V systems; lower active power (350 mW typ) | Select when migrating to lower-voltage infrastructure or needing higher pin count for future expansion |
| IDT70V25S25PF | 25 ns tRC, 8K × 8, 3.3 V supply, 64-pin TQFP, LVDS-compatible | Not 5 V tolerant; incompatible with TTL-level control signals without interface logic | Choose only if system already uses 3.3 V logic and demands reduced EMI via differential signaling |
Compared with CY7C024AV-25AXC and IDT70V25S25PF, the 7005S25GB provides direct 5 V TTL compatibility, proven military-grade reliability, and seamless integration into legacy avionics and industrial control designs without voltage translation or layout redesign.
Availability
7005S25GB is available at Aetrix Electronics and suitable for real-time inter-processor communication, video frame buffering, and military avionics data exchange requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 7005S25GB 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 memory, timing, and interface solutions, now part of Renesas Electronics since 2019.
The IDT7005 family was designed specifically for deterministic, low-latency dual-processor memory sharing in mission-critical systems - emphasizing hardware arbitration, semaphore signaling, and robust 5 V operation.
FAQ
What is the maximum operating temperature range for the 7005S25GB?
The 7005S25GB is rated for commercial temperature operation from 0°C to +70°C. It is not qualified for industrial (-40°C to +85°C) or military (-55°C to +125°C) ranges - those variants carry different suffixes (e.g., 7005S25GI for industrial, 7005S25GM for military). Always verify the full part number against IDT's official ordering guide.
Does the 7005S25GB support battery backup data retention?
No, the 7005S25GB does not support battery backup. That capability is exclusive to the IDT7005L (low-power) variant, which retains data at 2 V with typical current draw of 5 µA in standby. The 7005S25GB is the standard-power S-version with 5 mW typical standby consumption and no specified 2 V retention mode.
How does the M/S pin configure arbitration behavior in the 7005S25GB?
When M/S = HIGH, the 7005S25GB operates as a master: BUSYL and BUSYR become push-pull outputs that assert during port contention. When M/S = LOW, it acts as a slave: BUSYL and BUSYR become inputs that must be driven externally to inhibit writes. This pin enables flexible master/slave cascading without external logic.
Can the 7005S25GB perform simultaneous reads from both ports to the same memory address?
Yes, the 7005S25GB uses true dual-port memory cells that allow completely independent, simultaneous reads - even to identical addresses - with no timing penalty or bus contention. This is a core architectural feature confirmed in the functional description and truth tables of the official datasheet.
What package type is used for the 7005S25GB, and are there lead-free options?
The 7005S25GB is supplied in a 64-pin thin quad flatpack (TQFP) package, IDT designation PNG64, measuring 14 mm × 14 mm × 1.4 mm. Green (lead-free, RoHS-compliant) versions are available - indicated by the "G" suffix in the full orderable part number (e.g., 7005S25GB), per IDT's packaging documentation.
7005S25GB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 68-BPGA
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Dual Port, Asynchronous
- Memory Size:
- 64Kbit
- Memory Organization:
- 8K 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:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 68-PGA (29.46x29.46)
7005S25GB FAQ
1.How can I place an order for 7005S25GB through Aetrix?
Please submit a Request for Quotation (RFQ) for 7005S25GB 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 7005S25GB reliable?
The price and inventory of 7005S25GB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7005S25GB is usually 5 days.
3.What payment methods are accepted for 7005S25GB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7005S25GB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7005S25GB?
7005S25GB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7005S25GB 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 7005S25GB?
For technical support, including 7005S25GB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7005S25GB requirements.
6.How does Aetrix verify that 7005S25GB is sourced from the original manufacturer or authorized distributors?
All 7005S25GB 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 7005S25GB meets industry standards.
7.What is the process for return or replacement of 7005S25GB?
All 7005S25GB units undergo pre-shipment inspection (PSI). If there is an issue with 7005S25GB, 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 7005S25GB part is unused and in its original packaging.
Return procedure for 7005S25GB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7005S25GB Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
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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
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