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Renesas 70V9179L12PF8
- Part No.:
- 70V9179L12PF8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 100-LQFP
- Datasheet:
-
70V9179L12PF8.pdf
- Description:
- IC SRAM 288KBIT PARALLEL 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,113
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Product details
Overview
70V9179L12PF8 from Renesas Electronics is a high-speed 32K × 9-bit synchronous dual-port static RAM with true dual-ported memory cells, pipelined/flow-through output mode selection via FT/PIPE pins, and full synchronous operation on both ports. It supports 12 ns cycle time (83 MHz) in pipelined mode, operates from a single 3.3 V ±0.3 V supply, and targets burst-access memory subsystems in telecom switching fabric and real-time DSP co-processing.
For engineers reviewing the 70V9179L12PF8 datasheet, 70V9179L12PF8 pinout, 70V9179L12PF8 application, or 70V9179L12PF8 equivalent, key selection criteria include dual-port timing isolation, address counter enable/reset functionality, LVTTL-compatible I/O, 100-pin TQFP package compatibility, and industrial-grade standby current behavior at 85°C ambient.
Technical Context
The 70V9179L12PF8 implements fully registered synchronous interfaces on left and right ports, with all control, address, and data inputs latched on the rising edge of CLKL/CLKR. Its self-timed write architecture enables minimal cycle time without external wait-state generation.
Each port features independent chip enables (CE0X/CE1X), asynchronous output enable (OEX), address strobe (ADSX), and dedicated counter control (CNTENX/CNTRSTX). The FT/PIPEX pin selects between flow-through (data valid after one clock) and pipelined (data valid after two clocks) output modes - with distinct AC timing parameters for each.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 32K × 9 bits (288 Kbit total); supports independent concurrent read/write to same address |
| Cycle Time (Pipelined) | 12 ns max - enables 83 MHz sustained operation per port with zero wait states |
| Access Time (Pipelined) | 7.5 ns max clock-to-data - defines minimum latency for pipelined read outputs |
| Supply Voltage | 3.3 V ±0.3 V - LVTTL-compatible single-rail operation; no level-shifting required |
| Operating Temperature | 0°C to +70°C (Commercial grade) - validated for stable performance across full range |
| Package | 100-pin Thin Quad Flatpack (TQFP), 14 mm × 14 mm body - standard surface-mount footprint |
| Standby Current | 0.4 mA typical (ISB3) - ultra-low power retention when both ports fully deselected |
Pinout & Package
70V9179L12PF8 is housed in a 100-pin TQFP (PNG100) package with 0.5 mm pitch, 14 mm × 14 mm body size, and 1.4 mm maximum height. All VDD pins require local 3.3 V decoupling; all VSS pins must be connected to ground.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLKL / CLKR | Port-specific clock input | Rising-edge-triggered register clock for left/right port inputs and internal pipeline stages |
| CE0L/CE1L / CE0R/CE1R | Dual chip enable pair per port | Independent port power gating: CE0=VIL & CE1=VIH enables; CE0=VIH or CE1=VIL forces standby |
| R/WL / R/WR | Read/write direction control | Synchronous active-low write enable; high = read, low = write (registered on clock edge) |
| OEL / OER | Asynchronous output enable | Directly controls I/O bus drivers; does not require clock synchronization |
| FT/PIPEL / FT/PIPER | Output mode select | VIL = flow-through (1-cycle latency); VIH = pipelined (2-cycle latency with higher throughput) |
| A0L–A14L / A0R–A14R | Address inputs | 15-bit address bus per port; A14 is MSB - supports full 32K depth addressing |
| I/O0L–I/O8L / I/O0R–I/O8R | Data I/O lines | 9-bit bidirectional data bus per port; shared pins handle input and output under R/W control |
| CNTENL/CNTRSTL / CNTENR/CNTRSTR | Address counter control | Enable/disable and reset internal 15-bit address counter for burst sequential access without external address gen |
Key Features
| Feature | Design Value |
|---|---|
| True dual-port memory cell architecture | Enables simultaneous, independent read/write access to identical memory locations - eliminates arbitration logic in ping-pong buffer designs |
| Configurable output timing mode | Selectable flow-through (low-latency) or pipelined (high-throughput) operation per port via dedicated FT/PIPE pins |
| Integrated address counter | On-chip 15-bit counter with enable and synchronous reset reduces external address generation logic in burst-mode applications |
| Dual chip enable per port | Two independent enables (CE0/CE1) allow seamless depth expansion of multiple devices without external decode logic |
| Full synchronous interface with asynchronous OE | All control/address/data registered on clock edge except OE - simplifies connection to asynchronous buses while maintaining timing integrity |
Applications
| Telecom Switching Fabric | DSP Co-Processor Buffer |
|---|---|
|
Use Scenario: High-speed packet header buffering and lookup table storage in line-card ASIC interfaces. IC Role / Device Role / Timing Role: Dual-port SRAM serving as shared memory between ingress and egress traffic processors with deterministic 12 ns cycle time. Use Value: Eliminates inter-processor contention delays; enables concurrent header parse (port A) and rewrite (port B) without software arbitration. |
Use Scenario: Real-time coefficient and sample buffering between fixed-point DSP core and FPGA-based pre/post-processing pipeline. IC Role / Device Role / Timing Role: Synchronous dual-port memory providing zero-wait-state data exchange at 83 MHz clock rate. Use Value: Supports continuous 9-bit data streaming with pipelined mode - sustains full bandwidth during FFT windowing and filtering operations. |
| Industrial Motion Controller | Network Protocol Accelerator |
|
Use Scenario: Storing interpolated trajectory points and encoder feedback history in closed-loop servo drives. IC Role / Device Role / Timing Role: Dual-port RAM acting as time-critical motion profile buffer with independent CPU and PWM timer access. Use Value: Enables jitter-free position update cycles using counter-enabled sequential reads - no CPU intervention needed for step generation. |
Use Scenario: Deep packet inspection engine requiring parallel access to pattern-matching tables and state tracking arrays. IC Role / Device Role / Timing Role: Shared memory resource accessed concurrently by classification engine (port A) and state machine (port B). Use Value: Delivers deterministic 7.5 ns pipelined read access - accelerates regex matching throughput without stalling either processing thread. |
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-12AXC | 32K × 9, 12 ns cycle, 3.3 V, but uses separate data buses (no I/O bidirectionality); no integrated address counter | Lacks counter enable/reset; requires external address sequencing logic for burst access | Choose when strict separation of read/write data paths is required and counter logic is already implemented externally |
| AS7C33256P-12TC | 32K × 9, 12 ns, 3.3 V, but only single-port interface; no dual-clock or dual-enable architecture | No simultaneous port access; cannot support true ping-pong or producer-consumer memory sharing | Consider only for cost-sensitive non-concurrent applications where dual-port functionality is unnecessary |
Compared with CY7C028V-12AXC and AS7C33256P-12TC, the 70V9179L12PF8 uniquely delivers true concurrent dual-port access with on-die address counter and selectable pipelined/flow-through timing - enabling lower-system-complexity implementations in real-time embedded memory subsystems.
Availability
70V9179L12PF8 is available at Aetrix Electronics and suitable for telecom infrastructure, industrial motion control, DSP co-processing, and network protocol acceleration requiring stable component supply and long-term obsolescence management.
Supply support for 70V9179L12PF8 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 delivering microcontrollers, analog, power, and memory solutions for automotive, industrial, and enterprise applications.
The 70V9179L12PF8 belongs to Renesas' legacy IDT dual-port SRAM product line, engineered specifically for high-bandwidth, low-latency shared-memory architectures in real-time signal processing and switching systems.
FAQ
What is the maximum operating frequency of the 70V9179L12PF8 in pipelined mode?
The 70V9179L12PF8 supports up to 83 MHz operation in pipelined output mode, derived from its guaranteed 12 ns clock cycle time (tCYC2). This frequency is validated across the commercial temperature range (0°C to +70°C) with 3.3 V ±0.3 V supply and specified capacitive loading conditions per the AC test setup.
Does the 70V9179L12PF8 support simultaneous read and write to the same memory location?
Yes, the 70V9179L12PF8 uses true dual-ported memory cells that allow simultaneous access - including concurrent read from one port and write to the same address on the other port. This capability is fundamental to its architecture and explicitly confirmed in the functional description and truth tables.
How does the address counter function in the 70V9179L12PF8?
The 70V9179L12PF8 integrates a 15-bit address counter per port, controlled by CNTENX and CNTRSTX inputs. When CNTENX = VIL on the rising clock edge, the counter advances automatically; CNTRSTX = VIL resets it to address 0. This eliminates need for external address increment logic in burst-access applications.
What is the difference between flow-through and pipelined output modes on the 70V9179L12PF8?
In flow-through mode (FT/PIPE = VIL), data appears at outputs after one clock cycle (tCD1 ≤ 25 ns). In pipelined mode (FT/PIPE = VIH), data appears after two cycles but enables shorter cycle times (tCYC2 = 12 ns vs tCYC1 = 30 ns), increasing sustained bandwidth at the cost of added latency.
Is the 70V9179L12PF8 RoHS-compliant and lead-free?
Yes, the 70V9179L12PF8 is a green part per the datasheet - manufactured with lead-free (Pb-free) terminations and compliant with RoHS Directive 2011/65/EU. The "G" suffix in ordering codes denotes green packaging, and the device meets JEDEC J-STD-609A Class 3 moisture sensitivity requirements.
70V9179L12PF8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 100-LQFP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Dual Port, Synchronous
- Memory Size:
- 288Kbit
- Memory Organization:
- 32K x 9
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- -
- Access Time:
- 12 ns
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 100-TQFP (14x14)
70V9179L12PF8 FAQ
1.How can I place an order for 70V9179L12PF8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 70V9179L12PF8 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 70V9179L12PF8 reliable?
The price and inventory of 70V9179L12PF8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 70V9179L12PF8 is usually 5 days.
3.What payment methods are accepted for 70V9179L12PF8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 70V9179L12PF8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 70V9179L12PF8?
70V9179L12PF8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 70V9179L12PF8 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 70V9179L12PF8?
For technical support, including 70V9179L12PF8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 70V9179L12PF8 requirements.
6.How does Aetrix verify that 70V9179L12PF8 is sourced from the original manufacturer or authorized distributors?
All 70V9179L12PF8 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 70V9179L12PF8 meets industry standards.
7.What is the process for return or replacement of 70V9179L12PF8?
All 70V9179L12PF8 units undergo pre-shipment inspection (PSI). If there is an issue with 70V9179L12PF8, 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 70V9179L12PF8 part is unused and in its original packaging.
Return procedure for 70V9179L12PF8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
70V9179L12PF8 Tags
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