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Renesas 7014S12JG
- Part No.:
- 7014S12JG
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 52-LCC (J-Lead)
- Datasheet:
-
7014S12JG.pdf
- Description:
- IC SRAM 36KBIT PARALLEL 52PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:3,369
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Product details
Overview
IDT7014S12JG from Renesas Electronics is a high-speed 4K × 9 true dual-port static RAM with independent asynchronous ports, 12 ns maximum access time (commercial grade), TTL-compatible 5 V ±10% operation, and 750 mW typical active power dissipation - designed for real-time inter-processor communication in embedded control systems.
For engineers reviewing the IDT7014S12JG datasheet, IDT7014S12JG pinout, IDT7014S12JG application, or IDT7014S12JG equivalent, key selection criteria include simultaneous read capability per port, absence of on-chip arbitration, 9-bit data width supporting parity, PLCC-52 package compatibility, and commercial temperature range (0°C to +70°C) operation.
Technical Context
The IDT7014S12JG implements fully asynchronous dual-port architecture with separate address, control, and I/O buses for left and right ports - enabling concurrent read operations to the same memory location without BUSY signal dependency. It lacks chip enable, remaining active upon power-up.
Each port features dedicated R/W, OE, and address lines; output drivers are enabled only when OE is low. The device uses standard-power CMOS technology and supports user-configurable parity via its 9-bit-wide data path - critical for error detection in serial data buffering and telecom interface applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 4K × 9 bits = 36 Kbit total; enables byte-plus-parity storage for fault-tolerant data paths |
| Access Time (tAA) | 12 ns max (commercial); defines minimum latency between address valid and stable data output |
| Supply Voltage | 5.0 V ±10%; compatible with legacy TTL logic families without level-shifting |
| Power Dissipation | 750 mW typical active; supports thermally constrained industrial control modules |
| Operating Temperature | 0°C to +70°C; validated for commercial-grade embedded systems with ambient thermal management |
| I/O Capacitance | 10 pF (output), 9 pF (input); ensures signal integrity up to 83 MHz read cycle frequency (tRC = 12 ns) |
| Output Drive | VOH ≥ 2.4 V @ –4 mA, VOL ≤ 0.4 V @ +4 mA; meets TTL voltage thresholds for direct interfacing |
Pinout & Package
Package: 52-pin Plastic Leaded Chip Carrier (PLCC), body size ≈ 0.75 in × 0.75 in × 0.17 in, lead finish: green (Pb-free).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0L–A11L | Left-port address inputs | 12-bit address bus for left-side memory access; independent of right-port addressing |
| A0R–A11R | Right-port address inputs | 12-bit address bus for right-side memory access; no shared address pins with left port |
| I/O0L–I/O8L | Left-port bidirectional data | 9-bit data path supporting parity bit; tri-stated when OEL = HIGH |
| I/O0R–I/O8R | Right-port bidirectional data | 9-bit data path supporting parity bit; tri-stated when OER = HIGH |
| R/WL / R/WR | Left/right write-enable control | Active-low write strobe; must be HIGH during address transitions to avoid bus contention |
| OEL / OER | Left/right output enable | Active-low; enables output drivers only when asserted; outputs float (high-Z) otherwise |
| VCC (pins 15, 33, 47) | Power supply | All three VCC pins must be connected to 5 V ±10%; decoupling required at each pin |
| GND (pins 14, 27, 32) | Ground reference | All three GND pins must be connected to system ground; critical for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| True dual-port memory cells | Enables simultaneous reads from both ports to identical addresses - essential for lock-free inter-processor handshaking |
| No on-chip arbitration logic | Reduces gate count and propagation delay but requires external protocol to prevent conflicting writes to same location |
| 9-bit data width with parity support | Allows user-defined 8-bit data + 1-bit parity per access - used in UART/HDLC frame buffering for error detection |
| Asynchronous operation per port | Eliminates clock domain crossing constraints; simplifies integration into mixed-timing subsystems |
| TTL-compatible signaling | Direct interface with legacy microcontrollers and FPGAs without level translators or pull-ups |
Applications
| Real-Time Inter-Processor Communication | Digital Signal Processing Buffering |
|---|---|
Use Scenario: Two microcontrollers exchange status and command data in a motion control system with deterministic latency requirements. IC Role / Device Role / Timing Role: Dual-port RAM acts as a shared register bank - left port serves CPU A, right port serves CPU B, eliminating polling or interrupt overhead. Use Value: 12 ns tAA enables sub-84 MHz data transfer rates between processors, meeting hard real-time deadlines in servo loop updates. |
Use Scenario: An FPGA-based DSP engine streams filtered audio samples to a host MCU while receiving new filter coefficients. IC Role / Device Role / Timing Role: IDT7014S12JG provides zero-wait-state buffer memory - one port handles DMA writes from FPGA, the other serves CPU reads. Use Value: Simultaneous read capability allows continuous sample streaming without stalling either data path, sustaining >10 MB/s throughput. |
| Telecom Protocol Stack Memory | Industrial PLC Data Exchange |
Use Scenario: HDLC frame assembly/disassembly in a serial communications module where transmit and receive paths operate independently. IC Role / Device Role / Timing Role: Left port buffers incoming frames for parsing; right port stores outgoing frames awaiting transmission - both using 9-bit width for CRC+data alignment. Use Value: Parity-enabled 9-bit I/O supports bit-level error checking per byte, reducing undetected corruption in noisy RS-485 environments. |
Use Scenario: A programmable logic controller synchronizes I/O scan data between main CPU and safety co-processor using shared memory. IC Role / Device Role / Timing Role: IDT7014S12JG serves as a deterministic handshake buffer - one port updated by scan engine, other read by safety monitor at fixed intervals. Use Value: Absence of BUSY signals eliminates arbitration latency, ensuring predictable worst-case response under all load conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C136-12JC | 5 V, 4K × 9, 12 ns, 52-pin PLCC; higher ICC (300 mW typ.) and no guaranteed tHZ < 7 ns | Less suitable for thermally constrained designs; lacks tHZ spec needed for fast bus release in multiplexed systems | Acceptable where power budget allows and high-Z timing margins are relaxed |
| AS7C34098B-12JIN | 5 V, 4K × 9, 12 ns, 52-pin PLCC; lower ICC (550 mW typ.), but only specified for industrial temp (–40°C to +85°C) | Not qualified for commercial-only designs requiring 0°C to +70°C validation; different AC test load assumptions | Preferred for extended temperature deployments, not drop-in for IDT7014S12JG's commercial-grade use cases |
Compared with CY7C136-12JC and AS7C34098B-12JIN, the IDT7014S12JG delivers tighter high-Z timing (tHZ ≤ 7 ns), lower active power (750 mW vs. 300/550 mW), and explicit commercial-grade qualification - making it optimal for cost-sensitive, thermally managed embedded systems requiring deterministic bus release and minimal power draw.
Availability
IDT7014S12JG is available at Aetrix Electronics and suitable for real-time inter-processor communication, digital signal processing buffering, telecom protocol stack memory, and industrial PLC data exchange requiring stable component supply across production lifecycles.
Supply support for IDT7014S12JG 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 Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and memory solutions for automotive, industrial, and infrastructure markets.
The IDT7014S12JG belongs to Renesas' legacy dual-port SRAM product line - engineered specifically for deterministic, arbitration-free memory sharing between heterogeneous processors in embedded control and communications equipment.
FAQ
What is the operating temperature range for the IDT7014S12JG?
The IDT7014S12JG is rated for commercial temperature operation from 0°C to +70°C. This specification is explicitly defined in the ordering information and AC electrical characteristics tables, and no industrial-grade variants (–40°C to +85°C) are offered for the 12 ns speed grade. The IDT7014S12JG must not be deployed outside this ambient range without derating analysis.
Does the IDT7014S12JG support simultaneous write operations to the same memory location?
No - the IDT7014S12JG has no on-chip arbitration circuitry. Simultaneous writes to the same address from left and right ports may result in partial or corrupted data due to undefined write priority. System-level protocol (e.g., semaphore flags or external logic) must ensure exclusive write access. This behavior is documented in the Functional Description section of the datasheet.
What package type does the IDT7014S12JG use, and are all VCC/GND pins required?
The IDT7014S12JG uses a 52-pin PLCC (PLG52) package with green (Pb-free) finish. All three VCC pins (15, 33, 47) and all three GND pins (14, 27, 32) must be connected - per Pin Configuration Note #1 and #2 - to ensure stable power delivery and noise immunity. Failure to connect any VCC or GND pin risks functional failure or increased EMI susceptibility.
How does the 9-bit data width of the IDT7014S12JG support parity functionality?
The IDT7014S12JG's 9-bit I/O structure (I/O0–I/O8) allows users to allocate one bit (e.g., I/O8) as a parity bit for error detection in 8-bit data transfers. This is explicitly stated in the Description section and enables hardware-level parity generation/checking in applications like serial communications or memory-mapped I/O where data integrity is critical.
Is the IDT7014S12JG still in active production, and what is its lifecycle status?
The IDT7014S12JG was discontinued per Renesas Product Discontinuation Notice PDN# SP-17-02, with last-time-buy expiring June 15, 2018. Aetrix Electronics maintains legacy inventory with full traceability and offers lifecycle availability coordination - including obsolescence forecasting and cross-reference support - for ongoing production programs relying on this part.
7014S12JG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 52-LCC (J-Lead)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Dual Port, Asynchronous
- Memory Size:
- 36Kbit
- Memory Organization:
- 4K x 9
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 12ns
- Access Time:
- 12 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 52-PLCC (19.13x19.13)
7014S12JG FAQ
1.How can I place an order for 7014S12JG through Aetrix?
Please submit a Request for Quotation (RFQ) for 7014S12JG 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 7014S12JG reliable?
The price and inventory of 7014S12JG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7014S12JG is usually 5 days.
3.What payment methods are accepted for 7014S12JG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7014S12JG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7014S12JG?
7014S12JG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7014S12JG 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 7014S12JG?
For technical support, including 7014S12JG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7014S12JG requirements.
6.How does Aetrix verify that 7014S12JG is sourced from the original manufacturer or authorized distributors?
All 7014S12JG 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 7014S12JG meets industry standards.
7.What is the process for return or replacement of 7014S12JG?
All 7014S12JG units undergo pre-shipment inspection (PSI). If there is an issue with 7014S12JG, 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 7014S12JG part is unused and in its original packaging.
Return procedure for 7014S12JG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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