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Renesas 70V9179L9PFI8
- Part No.:
- 70V9179L9PFI8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 100-LQFP
- Datasheet:
-
70V9179L9PFI8.pdf
- Description:
- IC SRAM 288KBIT PARALLEL 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,428
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Product details
Overview
70V9179L9PFI8 from Renesas Electronics is a high-speed, 32K × 9-bit synchronous dual-port static RAM with true dual-ported memory cells enabling simultaneous read/write access to the same address on left and right ports. It operates at 3.3 V ±0.3 V, supports pipelined (12 ns cycle, 83 MHz) and flow-through output modes, and features dual chip enables for depth expansion. It is used in real-time digital signal processing systems requiring low-latency inter-processor communication.
For engineers reviewing the 70V9179L9PFI8 datasheet, 70V9179L9PFI8 pinout, 70V9179L9PFI8 application, or 70V9179L9PFI8 equivalent, key selection considerations include synchronous dual-port timing compliance, industrial temperature support (−40°C to +85°C), LVTTL-compatible I/O, pipelined vs. flow-through latency trade-offs, and TQFP-100 package integration into high-density PCB layouts.
Technical Context
The 70V9179L9PFI8 implements fully synchronous operation on both ports with registered address, data, and control inputs-requiring only 4 ns setup and 0 ns hold time relative to CLK. Its self-timed write architecture enables fast cycle times independent of clock duty cycle, while dual address strobe (ADS) and counter enable (CNTEN) signals support burst-mode sequential addressing without external logic.
It integrates two independent 32K × 9 memory arrays with dedicated input/output registers per port, selectable pipelined (1-cycle latency) or flow-through (0-cycle latency) output modes via FT/PIPE pins, and automatic power-down when CE0 = VIH or CE1 = VIL-reducing standby current to 0.4 mA (typ.) under CMOS-level inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 32K × 9 bits (288 Kbit total); supports independent 9-bit parallel data paths on left and right ports |
| Cycle Time (Pipelined) | 12 ns max - enables 83 MHz sustained operation with 1-cycle pipeline latency for burst reads/writes |
| Cycle Time (Flow-Through) | 25 ns max - provides zero-cycle output latency ideal for deterministic real-time response |
| Supply Voltage | 3.3 V ±0.3 V - LVTTL-compatible interface eliminates level-shifting in 3.3 V system designs |
| Operating Temperature | −40°C to +85°C - qualified for industrial environments including motor control and telecom infrastructure |
| Package | 100-pin TQFP (PNG100), 14 mm × 14 mm × 1.4 mm - surface-mount compatible with standard reflow profiles |
| Power Consumption | Active: 200 mA typ. (both ports active, f = fMAX); Standby: 0.4 mA typ. (full CMOS standby) |
Pinout & Package
70V9179L9PFI8 is housed in a 100-pin Thin Quad Flatpack (TQFP) with exposed thermal pad (PNG100). Pin 1 is located at top-left corner (notch-marked side), and all VDD/VSS pins must be decoupled locally per datasheet layout guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLKL / CLKR | Port-specific clock input | Rising-edge synchronous trigger for all registered inputs and outputs on respective port |
| A0L–A14L / A0R–A14R | Address inputs | 15-bit address bus per port; A14 is MSB - supports full 32K address space (215 = 32,768) |
| I/O0L–I/O8L / I/O0R–I/O8R | Bidirectional data I/O | 9-bit parallel data path per port; high-impedance when OE asserted or chip disabled |
| R/WL / R/WR | Read/write direction control | Active-low signal determining data flow direction on respective port (L = write, H = read) |
| OEL / OER | Asynchronous output enable | Independent tri-state control per port; overrides clock-synchronous output behavior |
| CE0L/CE1L / CE0R/CE1R | Dual chip enable pair | Two-enable logic allows depth expansion without external gating; CE0=VIH or CE1=VIL powers down port |
| FT/PIPEL / FT/PIPER | Output mode select | Configures port output register as pipelined (VIH) or flow-through (VIL); determines tCD latency |
| CNTENL/CNTRSTL / CNTENR/CNTRSTR | Address counter control | Enables auto-incrementing internal address generation for burst transfers without external address sequencing |
| VDD / VSS | Power and ground | 3.3 V supply (VDD) and reference ground (VSS); multiple pins require distributed decoupling |
Key Features
| Feature | Design Value |
|---|---|
| True dual-port memory cells | Enables concurrent read and write to identical addresses across ports - critical for lock-free inter-processor communication |
| Synchronous pipelined output mode | Guarantees 7.5 ns clock-to-data-out (tCD2) with 12 ns cycle time - supports 83 MHz burst throughput |
| Dual chip enable architecture | Eliminates need for external logic in depth-expanded configurations - simplifies multi-chip memory banks |
| Integrated address counter | Reduces controller overhead during sequential accesses - enables auto-incrementing address generation per port |
| Industrial temperature range support | Validated operation from −40°C to +85°C - suitable for embedded industrial automation and base station equipment |
Applications
| Digital Signal Processor (DSP) Co-Processor Interface | Real-Time Industrial Motion Controller |
|---|---|
Use Scenario: Two DSPs share real-time sensor data and control commands via shared memory without bus arbitration. IC Role / Device Role / Timing Role: Dual-port SRAM acts as zero-wait-state buffer between asynchronous processors; pipelined mode ensures deterministic 12 ns cycle timing. Use Value: Eliminates software synchronization overhead and guarantees sub-100 ns inter-processor latency for closed-loop servo updates. | Use Scenario: PLC-based motion controller synchronizes position feedback (left port) with trajectory command generation (right port). IC Role / Device Role / Timing Role: Provides deterministic, low-jitter memory access for time-critical axis interpolation and encoder sampling. Use Value: Enables 10 kHz servo loop execution with guaranteed 7.5 ns data availability - meets IEC 61800-3 functional safety timing constraints. |
| Telecom Line Card Packet Buffer | Medical Imaging Data Acquisition System |
Use Scenario: High-speed packet processor writes incoming frames while network stack reads them for protocol handling. IC Role / Device Role / Timing Role: Serves as non-blocking FIFO buffer with independent read/write clocks; flow-through mode minimizes jitter in packet timestamping. Use Value: Achieves <1 µs end-to-end packet buffering latency - satisfies ITU-T G.8261 phase wander requirements for 10G Ethernet transport. | Use Scenario: MRI scanner digitizes analog RF signals (left port) while reconstruction engine processes prior frames (right port). IC Role / Device Role / Timing Role: Acts as high-bandwidth, low-latency frame store with simultaneous acquisition and processing pipelines. Use Value: Supports 200 MB/s sustained data throughput with <5 ns inter-port skew - preserves SNR integrity in 16-bit medical ADC streams. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous dual-port RAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C1370D-133AXC | 133 MHz max (7.5 ns cycle), 36K × 9 organization, 2.5 V core + 3.3 V I/O, different pinout | Higher speed but narrower voltage margin; requires level translation in pure 3.3 V systems | Select when >83 MHz bandwidth is required and board layout accommodates different TQFP-100 footprint |
| AS7C33256PFSIG | Asynchronous dual-port, 32K × 9, 3.3 V only, no pipelined mode or address counter | Lacks synchronous timing control and burst support - unsuitable for deterministic real-time systems | Choose only for cost-sensitive, non-timing-critical legacy designs where clock domain isolation is not required |
Compared with CY7C1370D-133AXC and AS7C33256PFSIG, the 70V9179L9PFI8 uniquely balances industrial temperature reliability, integrated address counter functionality, and flexible pipelined/flow-through latency selection - making it optimal for deterministic embedded control where timing predictability outweighs peak bandwidth.
Availability
70V9179L9PFI8 is available at Aetrix Electronics and suitable for digital signal processing, industrial motion control, telecom infrastructure, and medical imaging systems requiring stable component supply and long-term industrial-grade availability.
Supply support for 70V9179L9PFI8 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 70V9179L9PFI8 belongs to Renesas' legacy IDT synchronous dual-port SRAM product line, engineered specifically for deterministic, low-latency inter-processor communication in real-time embedded systems.
FAQ
What is the maximum operating frequency of the 70V9179L9PFI8 in pipelined output mode?
The 70V9179L9PFI8 supports up to 83 MHz operation in pipelined output mode, corresponding to a 12 ns clock cycle time (tCYC2) as specified in the AC Electrical Characteristics table for industrial temperature grade. This frequency is achievable with proper PCB layout, controlled impedance routing, and compliant 3.3 V ±0.3 V supply.
Does the 70V9179L9PFI8 support true simultaneous read-write access to the same memory location?
Yes, the 70V9179L9PFI8 uses true dual-ported memory cells that allow independent, concurrent read and write operations to identical addresses on the left and right ports - a core architectural feature confirmed in the Functional Block Diagram and Truth Table I.
What is the purpose of the CNTEN and CNTRST pins on the 70V9179L9PFI8?
The CNTEN (counter enable) and CNTRST (counter reset) pins on the 70V9179L9PFI8 control an on-chip address counter per port. When CNTEN = VIL, the counter auto-increments on each clock edge; CNTRST = VIL resets the counter to address 0 - enabling burst-mode sequential access without external address generation logic.
Can the 70V9179L9PFI8 operate in both pipelined and flow-through output modes simultaneously?
Yes, the 70V9179L9PFI8 supports independent output mode selection per port via FT/PIPEL (left) and FT/PIPER (right). One port can be configured for pipelined (VIH) operation while the other uses flow-through (VIL), allowing mixed-latency system architectures - as verified in Truth Table II and timing waveforms.
What is the standby current consumption of the 70V9179L9PFI8 under full CMOS-level disable conditions?
Under full CMOS-level standby (both ports disabled with CE0/CE1 > VDD − 0.2 V and all inputs at rail), the 70V9179L9PFI8 draws 0.4 mA typical (max 3 mA) - documented as ISB3 in the DC Electrical Characteristics table for industrial temperature grade.
70V9179L9PFI8 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:
- 9 ns
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 100-TQFP (14x14)
70V9179L9PFI8 FAQ
1.How can I place an order for 70V9179L9PFI8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 70V9179L9PFI8 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 70V9179L9PFI8 reliable?
The price and inventory of 70V9179L9PFI8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 70V9179L9PFI8 is usually 5 days.
3.What payment methods are accepted for 70V9179L9PFI8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 70V9179L9PFI8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 70V9179L9PFI8?
70V9179L9PFI8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 70V9179L9PFI8 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 70V9179L9PFI8?
For technical support, including 70V9179L9PFI8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 70V9179L9PFI8 requirements.
6.How does Aetrix verify that 70V9179L9PFI8 is sourced from the original manufacturer or authorized distributors?
All 70V9179L9PFI8 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 70V9179L9PFI8 meets industry standards.
7.What is the process for return or replacement of 70V9179L9PFI8?
All 70V9179L9PFI8 units undergo pre-shipment inspection (PSI). If there is an issue with 70V9179L9PFI8, 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 70V9179L9PFI8 part is unused and in its original packaging.
Return procedure for 70V9179L9PFI8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
70V9179L9PFI8 Tags
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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
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AT21CS01-STUM10-T
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AT24C02C-SSHM-T
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24LC01BT-I/OT
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M24C02-FMC6TG
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AT24CS02-SSHM-T
Microchip Technology
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93LC46BT-I/OT
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AT24C04C-SSHM-T
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24LC01BT-I/SN
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24AA02UIDT-I/OT
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AT24C08C-STUM-T
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