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Renesas 70V06L20JGI8
- Part No.:
- 70V06L20JGI8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 68-LCC (J-Lead)
- Datasheet:
-
70V06L20JGI8.pdf
- Description:
- IC SRAM 128KBIT PARALLEL 68PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:1,147
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Product details
Overview
70V06L20JGI8 from IDT (now Renesas) is a high-speed, 3.3V, 16K × 8 (128 Kbit) true dual-port static RAM with independent left/right ports, 20 ns max access time (industrial grade), TTL-compatible I/O, and on-chip semaphore/interrupt arbitration logic - used in real-time inter-processor communication systems such as industrial PLCs and telecom line cards.
For engineers reviewing the 70V06L20JGI8 datasheet, 70V06L20JGI8 pinout, 70V06L20JGI8 application, or 70V06L20JGI8 equivalent, key selection criteria include port-to-port contention handling via BUSY flag, master/slave cascading capability for 16-bit+ data buses, and 2V data retention during battery backup operation.
Technical Context
The 70V06L20JGI8 implements fully asynchronous dual-port architecture with separate address, control, and bidirectional I/O buses per port. It integrates hardware semaphore logic (8 flags, addressed by A0–A2), interrupt generation (INTL/INTR tied to fixed addresses 3FFEh/3FFFh), and automatic power-down per port via CE-driven standby mode.
Its arbitration relies on BUSY assertion (push-pull output) triggered by address match between ports when M/S = VIH (master), with tAPS = 5 ns priority setup time and tBDD ≤ 30 ns disable-to-valid-data delay - enabling deterministic resolution of simultaneous access to identical memory locations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 16K × 8 (128 Kbit), two independent 16-bit address spaces (A0–A13 per port) |
| Access Time (tAA) | 20 ns max (industrial −40°C to +85°C, VDD = 3.3 V ±0.3 V) |
| Supply Voltage | 3.3 V ±0.3 V - single TTL-compatible rail; supports 2 V data retention in battery-backup mode |
| Standby Current (ISB3) | 0.2 µA typ. (full CMOS-level standby, both ports disabled) |
| Port Arbitration | Hardware BUSY flag with address-match detection; tBAA ≤ 20 ns, tBDA ≤ 20 ns |
| Semaphore Support | 8 dedicated flags, accessed via SEM = VIL, CE = VIH, A0–A2 addressing, tSOP = 10 ns pulse width |
| Interrupt Logic | Edge-triggered INTL/INTR using fixed mailbox addresses (3FFEh/3FFFh), tINS ≤ 20 ns |
Pinout & Package
70V06L20JGI8 is packaged in a 68-pin PLCC (plastic leaded chip carrier), body size ≈ 1.18 in × 1.18 in × 0.16 in, with 4 ground (VSS) and 4 power (VDD) pins distributed for noise suppression.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CEL / CER | Chip Enable (Left / Right) | Active-low per-port enable; controls port power-down (ISB3 = 0.2 µA) when high |
| R/WL / R/WR | Read/Write Control (Left / Right) | Active-low write enable; determines direction of I/O0–I/O7 data flow per port |
| OEL / OER | Output Enable (Left / Right) | Active-low tri-state control for I/O bus drivers; enables concurrent read/write if not asserted |
| A0L–A13L / A0R–A13R | Address Inputs (Left / Right) | 14-bit address per port; full 16K-word decoding without external logic |
| I/O0L–I/O7L / I/O0R–I/O7R | Bidirectional Data (Left / Right) | 8-bit parallel data path per port; TTL-compatible, 4 mA drive strength |
| SEML / SEMR | Semaphore Enable (Left / Right) | Active-low select for semaphore register access (not memory array); enables A0–A2-controlled flag I/O |
| INTL / INTR | Interrupt Flag Output (Left / Right) | Open-drain compatible push-pull outputs; set/cleared by writes to 3FFEh/3FFFh |
| BUSYL / BUSYR | Busy Flag (Left / Right) | Push-pull output (master) or input (slave); indicates address contention; inhibits writes when asserted low |
| M/S | Master/Slave Select | VIL configures port as slave (BUSY input); VIH configures as master (BUSY output); enables cascaded 16-bit+ systems |
Key Features
| Feature | Design Value |
|---|---|
| True Dual-Port Architecture | Simultaneous independent read/write to same location permitted; no internal arbitration delay for non-contention cases |
| Hardware Semaphore Logic | 8 dedicated flags with atomic read/write via SEM control; eliminates need for software mutex or external logic |
| Master/Slave Cascading | Single M/S pin enables error-free 16-bit+ word expansion across multiple 70V06L20JGI8 devices without glue logic |
| Low-Power Standby | 0.2 µA typical ISB3 current at full CMOS-level disable - suitable for battery-backed systems with long idle periods |
| Industrial Temperature Range | Rated for −40°C to +85°C operation with guaranteed 20 ns access time - validated for harsh embedded environments |
Applications
| Industrial PLC Inter-Processor Link | Telecom Line Card Dual-CPU Interface |
|---|---|
Use Scenario: Two independent CPUs in a programmable logic controller share status, I/O mapping, and configuration data in real time. IC Role / Device Role / Timing Role: 70V06L20JGI8 serves as shared memory buffer with hardware BUSY arbitration to prevent race conditions during concurrent access. Use Value: Eliminates software polling or external arbitration logic; guarantees deterministic response under worst-case 20 ns timing constraints. |
Use Scenario: Control CPU and DSP processor on a telecom line card exchange packet headers and channel state information. IC Role / Device Role / Timing Role: 70V06L20JGI8 provides low-latency, lock-free memory sharing with interrupt signaling (INTL/INTR) for event-driven synchronization. Use Value: Reduces inter-processor latency to ≤20 ns; supports burst transfers without pipeline stalls or bus contention penalties. |
| Redundant Power Supply Monitor | Avionics Sensor Fusion Module |
Use Scenario: Primary and backup power controllers coordinate voltage regulation and fault reporting via shared memory. IC Role / Device Role / Timing Role: 70V06L20JGI8 operates in battery-backup mode (2 V retention) to preserve critical state during AC loss. Use Value: Maintains system integrity across power transitions; enables seamless failover with sub-20 ns memory access during brownout. |
Use Scenario: Multiple sensor processors (IMU, GPS, barometer) write timestamped raw data into common buffer for fusion algorithm. IC Role / Device Role / Timing Role: 70V06L20JGI8 uses semaphore flags (SEML/SEMR) to coordinate exclusive access to shared memory regions. Use Value: Prevents data corruption without CPU intervention; supports deterministic timing-critical fusion loops in DO-254-compliant designs. |
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-20AXC | 20 ns access, 16K × 16 organization, 3.3 V supply, but requires external byte-enable logic for 8-bit interface compatibility | Requires PCB redesign for data bus width and lacks integrated semaphore logic | Select only if 16-bit native interface and higher density outweigh added complexity and missing arbitration features |
| AS7C31026B-20TIN | 20 ns access, 128K × 8, 3.3 V, but single-port only - no BUSY/interrupt/semaphore hardware | No hardware arbitration; requires software-managed locking and external interrupt routing | Acceptable only in non-real-time systems where deterministic contention resolution is not required |
Compared with CY7C028V-20AXC and AS7C31026B-20TIN, the 70V06L20JGI8 uniquely delivers true dual-port operation with on-die arbitration, eliminating external logic and software overhead - critical for hard real-time inter-processor communication.
Availability
70V06L20JGI8 is available at Aetrix Electronics and suitable for industrial automation, telecom infrastructure, and avionics applications requiring stable component supply, long-term lifecycle support, and guaranteed industrial temperature performance.
Supply support for 70V06L20JGI8 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
Renesas Electronics (formerly Integrated Device Technology) is a global semiconductor leader focused on microcontrollers, analog, power, and memory solutions for industrial, automotive, and communications markets.
The 70V06L20JGI8 belongs to IDT's legacy high-speed dual-port SRAM product line, engineered specifically for deterministic, low-latency inter-processor communication in mission-critical embedded systems.
FAQ
What is the maximum operating temperature range for the 70V06L20JGI8?
The 70V06L20JGI8 is rated for industrial temperature operation from −40°C to +85°C, with all electrical specifications-including 20 ns access time-guaranteed across this full range under VDD = 3.3 V ±0.3 V conditions.
Does the 70V06L20JGI8 support battery backup operation?
Yes, the 70V06L20JGI8 supports battery backup with 2 V data retention capability. When VDD drops below 2.0 V, the device maintains stored data without corruption, enabling seamless operation during main power interruption.
How does the BUSY arbitration logic work in the 70V06L20JGI8?
In master mode (M/S = VIH), the 70V06L20JGI8 asserts BUSYL or BUSYR when both ports access the same address simultaneously. The port with earlier stable address/enable inputs wins; tAPS = 5 ns ensures priority setup, and tBDD ≤ 30 ns defines delay to valid data after BUSY deassertion.
Can the 70V06L20JGI8 be used in a 16-bit data bus configuration?
Yes - the 70V06L20JGI8 supports 16-bit expansion via Master/Slave cascading. One device operates as master (M/S = VIH), another as slave (M/S = VIL); BUSY signals coordinate access, enabling full-speed 16-bit operation without external logic.
What are the interrupt mailbox addresses for the 70V06L20JGI8?
The 70V06L20JGI8 uses fixed interrupt mailbox addresses: writing to address 3FFEh sets the left-port interrupt flag (INTL), and writing to 3FFFh sets the right-port flag (INTR). Reading those addresses clears the respective flags.
70V06L20JGI8 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:
- 20ns
- Access Time:
- 20 ns
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 68-PLCC (24.21x24.21)
70V06L20JGI8 FAQ
1.How can I place an order for 70V06L20JGI8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 70V06L20JGI8 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 70V06L20JGI8 reliable?
The price and inventory of 70V06L20JGI8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 70V06L20JGI8 is usually 5 days.
3.What payment methods are accepted for 70V06L20JGI8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 70V06L20JGI8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 70V06L20JGI8?
70V06L20JGI8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 70V06L20JGI8 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 70V06L20JGI8?
For technical support, including 70V06L20JGI8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 70V06L20JGI8 requirements.
6.How does Aetrix verify that 70V06L20JGI8 is sourced from the original manufacturer or authorized distributors?
All 70V06L20JGI8 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 70V06L20JGI8 meets industry standards.
7.What is the process for return or replacement of 70V06L20JGI8?
All 70V06L20JGI8 units undergo pre-shipment inspection (PSI). If there is an issue with 70V06L20JGI8, 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 70V06L20JGI8 part is unused and in its original packaging.
Return procedure for 70V06L20JGI8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
70V06L20JGI8 Tags
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M24C02-WMN6TP
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AT24C02C-XHM-T
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AT21CS01-STUM10-T
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M24C02-FMC6TG
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AT24CS02-SSHM-T
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AT24C04C-SSHM-T
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