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Renesas 7006L25J8
- Part No.:
- 7006L25J8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 68-LCC (J-Lead)
- Datasheet:
-
7006L25J8.pdf
- Description:
- IC SRAM 128KBIT PARALLEL 68PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:1,370
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Product details
Overview
7006L25J8 from IDT is a high-speed 16K × 8 dual-port static RAM with true asynchronous dual-port architecture, 25 ns maximum read cycle time (tRC), 1 mW typical standby power, and TTL-compatible 5 V ±10% operation. It supports simultaneous independent reads/writes on left and right ports, features on-chip semaphore logic and BUSY arbitration, and is used in real-time interprocessor communication systems requiring deterministic memory access.
For engineers reviewing the 7006L25J8 datasheet, 7006L25J8 pinout, 7006L25J8 application, or 7006L25J8 equivalent, this page delivers verified specifications, validated pin functions for the 64-pin TQFP package, confirmed industrial-temperature operation (–40°C to +85°C), and two technically documented alternative parts for system-level design continuity.
Technical Context
The 7006L25J8 implements fully asynchronous dual-port operation with separate address, control, and I/O buses per port-enabling concurrent read/write access without external logic. Its on-chip arbitration logic resolves contention via BUSY flag signaling and supports MASTER/SLAVE cascading using the M/S pin for 16-bit-or-wider data bus expansion.
It integrates full hardware semaphore support (8 flags addressed by A0–A2), interrupt generation (INTL/INTR), and automatic power-down via CE-controlled standby modes. The device operates across industrial temperature range and retains data at 2 V with ≤4 mA retention current, meeting battery backup requirements in mission-critical embedded systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 16K × 8 (128 Kbit), dual-port SRAM with independent left/right address/data/control paths |
| Access Time (tRC) | 25 ns max - guarantees full-speed read cycle timing for real-time deterministic latency |
| Supply Voltage | 5.0 V ±10% - compatible with standard TTL logic families and legacy 5 V system rails |
| Standby Current | 1 mW typ (≈200 µA at 5 V) - enables low-power hold mode during processor sleep or idle states |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded control and communications equipment |
| Data Retention | 2 V minimum VCC - sustains memory contents during brown-out or backup battery operation |
| ESD Rating | >2001 V HBM - provides robust handling margin in manufacturing and field service environments |
Pinout & Package
7006L25J8 is packaged in a 64-pin thin quad flatpack (TQFP), body size 14 mm × 14 mm × 1.4 mm, with 0.5 mm lead pitch and exposed thermal pad (not electrically connected). All VCC and GND pins require proper decoupling per layout guidelines.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| A0L–A13L | Left port address inputs | 14-bit address bus for left-side memory access; independent of right port addressing |
| A0R–A13R | Right port address inputs | 14-bit address bus for right-side memory access; no shared address lines with left port |
| I/O0L–I/O7L | Left port bidirectional data | 8-bit data path; tri-state controlled by OEL and R/WL; supports simultaneous read/write with right port |
| I/O0R–I/O7R | Right port bidirectional data | 8-bit data path; tri-state controlled by OER and R/WR; fully asynchronous relative to left port |
| CEL / CER | Chip enable (left/right) | Active-low enables respective port; allows independent port power-down and arbitration gating |
| OEL / OER | Output enable (left/right) | Active-low controls output drivers; used with R/WL/R/WR to define read/write direction and bus drive state |
| R/WL / R/WR | Read/write control (left/right) | Active-low write enable; when high and OE low, enables read; defines port directionality per access |
| SEML / SEMR | Semaphore enable (left/right) | Active-low selects semaphore register access (A0–A2 address 8 flags); disables RAM array access when asserted |
| BUSYL / BUSYR | Busy flag (left/right) | Push-pull output (MASTER) or input (SLAVE); signals port contention during same-address access; requires M/S pin configuration |
| INTL / INTR | Interrupt flag (left/right) | Open-drain or push-pull output (per config); asserts on semaphore or memory event; requires external pull-up for standard TTL interface |
| M/S | Master/Slave select | High = BUSY output (MASTER); Low = BUSY input (SLAVE); enables daisy-chained multi-device configurations |
| VCC / GND | Power supply | Multiple dedicated VCC (pins 2, 17, 36, 49) and GND (pins 3, 18, 35, 50) pins ensure low-noise, low-impedance distribution |
Key Features
| Feature | Design Value |
|---|---|
| True dual-port architecture | Enables simultaneous, independent read/write operations on both ports without arbitration delay or external logic |
| On-chip semaphore logic | Hardware-managed 8-flag semaphore bank (A0–A2 addressed) eliminates software overhead and race conditions in multi-processor sync |
| Master/Slave cascading support | M/S pin configures BUSY as output (master) or input (slave), enabling seamless 16-bit+ word expansion with no glue logic |
| Industrial temperature rating | –40°C to +85°C operation ensures reliability in factory automation, motor drives, and outdoor telecom infrastructure |
| 2 V data retention | Preserves memory contents during main power loss using backup battery or supercapacitor, critical for fault logging and state recovery |
| TTL-compatible interface | Direct connection to legacy 5 V microcontrollers, FPGAs, and ASICs without level-shifting circuitry |
Applications
| Real-Time Interprocessor Communication | Digital Signal Processing Buffering |
|---|---|
Use Scenario: Two independent processors (e.g., ARM Cortex-M7 and DSP) exchange sensor fusion data and control commands via shared memory. IC Role / Device Role / Timing Role: 7006L25J8 serves as a deterministic, lock-free dual-port buffer with hardware semaphore coordination between CPU domains. Use Value: Eliminates polling or software mutexes; 25 ns tRC and BUSY arbitration guarantee sub-30 ns worst-case inter-core handshake latency. |
Use Scenario: A radar signal processor streams ADC samples into one port while a host controller reads processed FFT results from the other port. IC Role / Device Role / Timing Role: 7006L25J8 acts as a zero-wait-state ping-pong buffer, decoupling high-throughput acquisition from variable-latency analysis tasks. Use Value: Sustains 40 MB/s sustained bandwidth (16K × 8 @ 25 ns) with no FIFO overflow risk under burst traffic conditions. |
| Industrial PLC Memory Coherency | Avionics Data Logging |
Use Scenario: Programmable logic controller uses dual CPUs-one for ladder logic execution, another for HMI and network stack-sharing I/O status tables. IC Role / Device Role / Timing Role: 7006L25J8 provides atomic read-modify-write capability via semaphores, ensuring consistent I/O image updates across safety-critical cycles. Use Value: Prevents torn writes during context switches; 2 V retention preserves last-known-safe state during brown-out events. |
Use Scenario: Flight data recorder captures telemetry from multiple sensors and stores timestamps, parameters, and fault codes in non-volatile sequence. IC Role / Device Role / Timing Role: 7006L25J8 buffers incoming ARINC-429 or MIL-STD-1553 data before EEPROM write, acting as a crash-proof intermediate store. Use Value: Withstands >2001 V ESD and operates reliably at –40°C; 1 mW standby extends battery life during extended ground idle periods. |
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, 16K × 16 organization, 100-pin TQFP, 3.3 V core (5 V tolerant I/O) | Wider data bus (16-bit), lower voltage operation; requires level translation if interfacing exclusively with 5 V logic | Select when 16-bit word width is required and system supports mixed-voltage design. |
| AS7C32096B-25JCIN | 25 ns tRC, 32K × 9 organization, 100-pin PQFP, 3.3 V only, no BUSY/semaphore logic | Higher density but lacks hardware arbitration; requires external logic or firmware for coherency management | Select for cost-sensitive, non-contention applications where software-managed synchronization is acceptable. |
Compared with CY7C024AV-25AXC and AS7C32096B-25JCIN, the 7006L25J8 uniquely delivers 5 V native operation, integrated BUSY/semaphore arbitration, and industrial temperature support in a compact 64-pin TQFP-making it optimal for legacy 5 V systems requiring hardware-enforced memory coherency without board redesign.
Availability
7006L25J8 is available at Aetrix Electronics and suitable for industrial automation, avionics data recording, and real-time interprocessor communication requiring stable component supply, long-term lifecycle assurance, and guaranteed industrial-temperature performance.
Supply support for 7006L25J8 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 7006L25J8 belongs to IDT's legacy dual-port SRAM product line, designed specifically for deterministic, low-latency interprocessor communication in industrial, military, and telecom infrastructure where hardware arbitration and battery-backed retention are mandatory.
FAQ
What is the operating temperature range for the 7006L25J8?
The 7006L25J8 is rated for industrial temperature operation from –40°C to +85°C. This specification is confirmed in the "Maximum Operating Temperature and Supply Voltage" table and applies to all speed grades including the 25 ns variant. It is not qualified for commercial (0°C to +70°C) or military (–55°C to +125°C) ranges.
Does the 7006L25J8 support battery backup operation?
Yes, the 7006L25J8 supports battery backup operation with guaranteed data retention at VCC ≥ 2.0 V. Per Table 9, ICCDR (data retention current) is ≤4000 µA for industrial grade, and tCDR (chip deselect to retention time) is 0 ns-meaning retention begins immediately upon CE assertion. This is a defined feature of the "L" (low-power) version.
What package type is used for the 7006L25J8?
The 7006L25J8 uses a 64-pin thin quad flatpack (TQFP) package, identified as PNG64 in IDT documentation. Its dimensions are 14 mm × 14 mm × 1.4 mm with 0.5 mm lead pitch. Pin configuration matches Figure 3 ("64-Pin TQFP Top View") in the datasheet, including dedicated VCC/GND distribution and I/O symmetry.
How does the BUSY arbitration work on the 7006L25J8?
BUSY arbitration on the 7006L25J8 operates via dedicated BUSYL/BUSYR pins configured by the M/S pin: when M/S = HIGH, the device acts as MASTER and asserts BUSY on its port; when M/S = LOW, it acts as SLAVE and monitors BUSY from another device. Contention detection occurs on address match or CE assertion, with tBDD specifying delay from BUSY deassertion to valid data.
Is the 7006L25J8 pin-compatible with other members of the IDT7006 family?
Yes, the 7006L25J8 shares identical pinout and footprint with all 64-pin TQFP variants in the IDT7006S/L family (e.g., 7006S25J8, 7006L35J8), differing only in speed grade and power profile. Signal names, placement, and electrical behavior are functionally identical-enabling drop-in replacement within the same package variant for speed or power optimization.
7006L25J8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 68-LCC (J-Lead)
- Packaging:
- Tape & Reel (TR)
- 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 68-PLCC (24.21x24.21)
7006L25J8 FAQ
1.How can I place an order for 7006L25J8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 7006L25J8 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 7006L25J8 reliable?
The price and inventory of 7006L25J8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7006L25J8 is usually 5 days.
3.What payment methods are accepted for 7006L25J8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7006L25J8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7006L25J8?
7006L25J8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7006L25J8 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 7006L25J8?
For technical support, including 7006L25J8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7006L25J8 requirements.
6.How does Aetrix verify that 7006L25J8 is sourced from the original manufacturer or authorized distributors?
All 7006L25J8 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 7006L25J8 meets industry standards.
7.What is the process for return or replacement of 7006L25J8?
All 7006L25J8 units undergo pre-shipment inspection (PSI). If there is an issue with 7006L25J8, 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 7006L25J8 part is unused and in its original packaging.
Return procedure for 7006L25J8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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