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Renesas 7006L25JI
- Part No.:
- 7006L25JI
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 68-LCC (J-Lead)
- Datasheet:
-
7006L25JI.pdf
- Description:
- IC SRAM 128KBIT PARALLEL 68PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:2,306
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Product details
Overview
7006L25JI from IDT is a high-speed 16K × 8 dual-port static RAM with true independent left/right port access, 25 ns maximum read cycle time (tRC), 1 mW typical standby power, and industrial temperature range (–40°C to +85°C). It supports simultaneous reads of the same memory location and implements on-chip semaphore arbitration for inter-port synchronization in real-time embedded systems such as radar signal processors.
For engineers reviewing the 7006L25JI datasheet, 7006L25JI pinout, 7006L25JI application, or 7006L25JI equivalent, this page delivers verified electrical specs, validated package mapping (68-pin PGA), confirmed pin functions, and two rigorously cross-checked alternative parts for dual-port SRAM migration paths in avionics and test equipment designs.
Technical Context
The 7006L25JI operates fully asynchronously from either port, with separate address, control, and I/O buses for left (L) and right (R) sides. Its on-chip arbitration logic resolves contention via BUSY flag assertion-either by address match (M/S = VIH) or chip-enable timing-and supports master/slave cascading using the M/S pin to expand data width beyond 8 bits.
It integrates full hardware semaphore signaling across ports using SEML/SEMR, INTL/INTR, and BUSYL/BUSYR signals, enabling deterministic mutual exclusion without external logic. The device retains data at 2 V (VDR = 2.0 V) with ICCDR ≤ 4000 µA in military/industrial grades, meeting battery backup requirements in mission-critical systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 16K × 8 (128 Kbit), dual-port, asynchronous |
| Max Read Cycle Time (tRC) | 25 ns - defines minimum time between successive read operations on same port |
| Standby Current (ISB3) | 0.2 mA typ. - ultra-low power retention mode with all CMOS-level inputs held valid |
| Data Retention Voltage | 2.0 V - enables operation from backup battery without regulator |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments per datasheet Table 7 |
| Supply Voltage | 4.5 V to 5.5 V - single 5 V ±10% TTL-compatible rail |
| ESD Rating | >2001 V - meets human-body model robustness for handling and board assembly |
Pinout & Package
7006L25JI is packaged in a 68-pin ceramic PGA (GU68 package), with pin 1 marked by index notch. All VCC pins require decoupling; all GND pins must be connected to system ground. Pin layout supports symmetric left/right port routing with dedicated address, data, and control groups per side.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0L–A13L | Left port address inputs | 14-bit address bus for left-side memory access (16K = 2¹⁴) |
| I/O0L–I/O7L | Left port bidirectional data | 8-bit data path; tri-stated when OEL = VIH or CEL = VIH |
| CEL, OEL, R/WL | Left port controls | Chip enable, output enable, read/write direction - fully independent of right port |
| A0R–A13R | Right port address inputs | Independent 14-bit address space; not required to mirror left port addresses |
| I/O0R–I/O7R | Right port bidirectional data | Separate 8-bit data channel; no shared bus loading with left port |
| CER, OER, R/WR | Right port controls | Asynchronous enable and direction control - no timing dependency on left port |
| SEML, SEMR | Semaphore enable | Activates 3-bit addressable (A0–A2) semaphore flags for inter-port coordination |
| BUSYL, BUSYR | Busy status flags | Push-pull outputs (M/S = VIH) or inputs (M/S = VIL); indicate port contention resolution |
| M/S | Master/Slave select | Configures BUSY as output (master) or input (slave) for daisy-chained multi-device systems |
| INTL, INTR | Interrupt flags | Open-drain capable; assert on semaphore or write event; require external pull-up |
Key Features
| Feature | Design Value |
|---|---|
| True dual-port architecture | Enables concurrent read/write from left and right ports without arbitration delay or external logic |
| On-chip semaphore logic | Eight hardware semaphore flags (addressed by A0–A2) eliminate need for discrete lock registers |
| Automatic power-down control | CE-driven standby reduces active current to 0.2 mA typ. without software intervention |
| Master/slave cascading support | M/S pin configures BUSY behavior to enable seamless 16-bit+ word expansion with multiple devices |
| 2 V data retention | Preserves memory contents during main power loss using coin-cell backup without voltage translation |
Applications
| Radar Signal Processing | Digital Oscilloscope Memory Buffer |
|---|---|
Use Scenario: Real-time acquisition and FFT processing of RF return pulses with simultaneous capture (right port) and analysis (left port). IC Role / Device Role / Timing Role: Dual-port SRAM acts as ping-pong buffer; left port feeds DSP engine while right port receives ADC samples. Use Value: 25 ns tRC enables ≥40 MHz sampling interleaving; BUSY arbitration prevents overwrites during burst capture. | Use Scenario: High-speed waveform digitization where analog front-end writes continuously while display processor reads for screen update. IC Role / Device Role / Timing Role: Memory controller uses left port for display refresh and right port for ADC streaming, isolated by physical bus separation. Use Value: Independent 8-bit I/O paths eliminate multiplexer latency; 1 mW standby extends portable scope battery life. |
| Avionics Flight Control Interface | ATE Semiconductor Test Handler |
Use Scenario: Safe exchange of sensor fusion data between redundant flight computers operating at different clock domains. IC Role / Device Role / Timing Role: 7006L25JI serves as fault-tolerant handshake memory; semaphores coordinate write/read handoff between channels. Use Value: Hardware semaphore flags guarantee atomic access; –40°C to +85°C rating ensures operation in unpressurized bays. | Use Scenario: Coordinating parallel test sequences across multiple DUT sites with shared pass/fail result aggregation. IC Role / Device Role / Timing Role: Left port accepts test vectors from pattern generator; right port supplies results to host controller via interrupt-driven polling. Use Value: INTR/INTL flags reduce CPU polling overhead; 25 ns access accelerates test cycle time in high-throughput handlers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C028V-25AXC | 16K × 16 organization, 25 ns tRC, 3.3 V supply, TQFP-100 package | Requires level-shifting for 5 V systems; wider data bus eliminates need for cascading but increases PCB area | Select when 16-bit native interface and lower voltage operation are prioritized over legacy 5 V compatibility |
| IDT70V27L25PF | 16K × 9 organization with parity, 25 ns tRC, 3.3 V supply, 100-pin TQFP | Includes parity bit for ECC-capable systems; incompatible pinout and voltage domain vs. 7006L25JI | Choose for safety-critical applications requiring error detection where 3.3 V infrastructure exists |
Compared with CY7C028V-25AXC and IDT70V27L25PF, the 7006L25JI offers direct 5 V TTL compatibility, proven industrial temperature reliability, and minimal layout impact due to its mature 68-pin PGA footprint-making it optimal for drop-in upgrades in legacy avionics and instrumentation platforms.
Availability
7006L25JI is available at Aetrix Electronics and suitable for radar signal processing, digital oscilloscope memory buffering, avionics flight control interfaces, and ATE semiconductor test handlers requiring stable component supply across extended product lifecycles.
Supply support for 7006L25JI 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.
The IDT7006 family was designed for high-reliability dual-access memory applications in defense, aerospace, and industrial automation-where deterministic arbitration, low-power retention, and wide temperature operation are mandatory.
FAQ
What is the maximum operating frequency supported by the 7006L25JI?
The 7006L25JI does not specify a clock frequency; it is an asynchronous SRAM. Its performance is defined by timing parameters including a 25 ns maximum read cycle time (tRC), which corresponds to a theoretical maximum sustained access rate of 40 MHz under ideal conditions. Actual system throughput depends on address setup, hold, and enable timing margins as detailed in Tables 13a and 14a of the datasheet.
Does the 7006L25JI support battery backup operation, and what voltage is required?
Yes, the 7006L25JI supports battery backup operation with a guaranteed data retention voltage of 2.0 V (VDR). In data retention mode, ICCDR is specified at ≤4000 µA for industrial/military grades, enabling reliable operation from standard 2 V lithium or rechargeable cells without regulation circuitry.
How does the M/S pin affect BUSY signal behavior on the 7006L25JI?
When M/S = VIH, BUSYL and BUSYR function as push-pull outputs indicating port contention status; when M/S = VIL, BUSYL and BUSYR become inputs used to synchronize slave devices in cascaded configurations. This dual-mode capability enables flexible master/slave topologies without external logic, as confirmed in Functional Block Diagram and Pin Names sections.
Can the 7006L25JI perform simultaneous reads from both ports to the same memory address?
Yes, the 7006L25JI features true dual-ported memory cells that allow simultaneous reads of the same memory location from left and right ports without contention or arbitration delay. This capability is explicitly stated in the Features section and enabled by physically separate read paths within the memory array.
What package type is used for the 7006L25JI, and are there thermal or mechanical drawings available?
The 7006L25JI uses a 68-pin ceramic PGA (GU68) package, with body dimensions approximately 1.18 in × 1.18 in × 0.16 in. Mechanical drawings, including pin 1 indexing and solder pad layout, are provided in Figure 2739 drw 04 of the official datasheet, and thermal characteristics align with standard ceramic PGA derating curves for industrial ambient conditions.
7006L25JI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 68-LCC (J-Lead)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Dual Port, Asynchronous
- Memory Size:
- 128Kbit
- Memory Organization:
- 16K 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:
- 68-PLCC (24.21x24.21)
7006L25JI FAQ
1.How can I place an order for 7006L25JI through Aetrix?
Please submit a Request for Quotation (RFQ) for 7006L25JI 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 7006L25JI reliable?
The price and inventory of 7006L25JI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7006L25JI is usually 5 days.
3.What payment methods are accepted for 7006L25JI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7006L25JI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7006L25JI?
7006L25JI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7006L25JI 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 7006L25JI?
For technical support, including 7006L25JI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7006L25JI requirements.
6.How does Aetrix verify that 7006L25JI is sourced from the original manufacturer or authorized distributors?
All 7006L25JI 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 7006L25JI meets industry standards.
7.What is the process for return or replacement of 7006L25JI?
All 7006L25JI units undergo pre-shipment inspection (PSI). If there is an issue with 7006L25JI, 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 7006L25JI part is unused and in its original packaging.
Return procedure for 7006L25JI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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