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Renesas 70V27L15PFGI8
- Part No.:
- 70V27L15PFGI8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 100-LQFP
- Datasheet:
-
70V27L15PFGI8.pdf
- Description:
- IC SRAM 512KBIT PARALLEL 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,218
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Product details
Overview
70V27L15PFGI8 from Integrated Device Technology is a high-speed 3.3V 32K × 16 dual-ported static RAM with true simultaneous access to the same memory location, 15 ns maximum read cycle time (tRC), industrial temperature range (−40°C to +85°C), and ultra-low standby power of 660 μW (typ.). It enables error-free 32-bit+ bus expansion via Master/Slave cascading in real-time control and communication subsystems.
For engineers reviewing the 70V27L15PFGI8 datasheet, 70V27L15PFGI8 pinout, 70V27L15PFGI8 application, or 70V27L15PFGI8 equivalent, key selection criteria include dual-port arbitration timing (tAPS = 5 ns), BUSY flag behavior under M/S = VIH/VIL, semaphore address access (tSAA ≤ 25 ns), and LVTTL-compatible 3.3V ±0.3V single-supply operation.
Technical Context
The 70V27L15PFGI8 implements fully asynchronous dual-port architecture with independent left/right address, control, and I/O buses-enabling concurrent read/write operations without external synchronization logic. Its on-chip arbitration logic resolves port contention via address-match or chip-enable priority, with BUSY output (Master) or input (Slave) signaling.
It integrates full hardware semaphore support across eight flags addressed by A0–A2, with dedicated SEM pins and non-tri-state totem-pole INT/BUSY outputs. Power management uses TTL- and CMOS-level CE0/CE1 enables to achieve three standby modes (ISB1–ISB4), including full CMOS-level shutdown (ISB3 = 0.2 mA typ. for L version).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 32K × 16 (512 Kbit), dual-ported with independent left/right access paths |
| Access Time (tAA) | 15 ns max - guarantees deterministic latency for real-time interrupt response and data coherency |
| Supply Voltage | 3.3 V ±0.3 V - LVTTL-compatible single rail, eliminates level-shifting in 3.3V systems |
| Standby Current (ISB3) | 660 µW typ. (0.2 mA @ 3.3V) - enables always-on subsystems with minimal quiescent drain |
| Operating Temperature | −40°C to +85°C - qualified for industrial control, avionics, and base station applications |
| Package | 100-pin TQFP (14 mm × 14 mm × 1.4 mm) - surface-mount compatible with automated assembly |
| Arbitration Setup (tAPS) | 5 ns min - ensures deterministic port priority resolution during simultaneous address transitions |
Pinout & Package
70V27L15PFGI8 is housed in a 100-pin Thin Quad Flatpack (TQFP) with 0.5 mm pitch, body size 14 mm × 14 mm × 1.4 mm. All VDD and VSS pins require local decoupling per layout guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0L–A14L / A0R–A14R | Address Inputs (Left/Right) | 15-bit independent address buses enabling full 32K-word access per port |
| I/O0L–I/O15L / I/O0R–I/O15R | Data I/O (Left/Right) | 16-bit bidirectional data paths; byte enable (UBL/LBL, UBR/LBR) supports 8-bit subword transfers |
| CE0L/CE1L / CE0R/CE1R | Chip Enable (Left/Right) | Dual CE per port enables independent power-down and depth expansion without glue logic |
| R/WL/R/WR | Read/Write Control | Active-low write enable; combined with CE and OE determines memory operation mode |
| OEL/OER | Output Enable | Controls tri-state of I/O drivers; required for bus sharing in multi-device systems |
| SEML/SEMR | Semaphore Enable | Activates hardware semaphore register access (A0–A2 addressable) for inter-processor coordination |
| BUSYL/BUSYR | Busy Flag | Push-pull output (Master) or input (Slave); blocks writes during port contention or arbitration |
| INTL/INTR | Interrupt Flag | Non-tri-state totem-pole output asserting on mailbox writes (e.g., 7FFEH for INTL) |
| M/S | Master/Slave Select | Configures BUSY as output (VIH) or input (VIL); enables cascaded 32-bit+ memory systems |
| VDD / VSS | Power / Ground | Single 3.3V supply; 10× VDD/VSS pins ensure low-impedance distribution and noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| True Dual-Port Architecture | Enables simultaneous read/write to identical addresses - critical for FIFO buffering and shared-memory IPC |
| Hardware Semaphore Logic | Eight dedicated flags accessed via A0–A2; eliminates software locks and reduces CPU overhead in multi-core systems |
| Master/Slave Cascading | Supports 32-bit+ data bus expansion using M/S pin; no external logic needed for width scaling |
| Ultra-Low Standby Power | 660 µW typical (ISB3) - extends battery life in portable test equipment and remote sensors |
| Industrial Temperature Range | −40°C to +85°C operation - validated for deployment in motor drives, PLCs, and outdoor telecom gear |
Applications
| Real-Time Motion Control | Avionics Data Acquisition |
|---|---|
Use Scenario: Coordinating servo position updates and sensor feedback in multi-axis CNC controllers. IC Role / Device Role / Timing Role: Dual-port RAM acts as shared buffer between motion processor (left port) and FPGA-based encoder interface (right port), synchronized via BUSY arbitration. Use Value: 15 ns tRC and 5 ns tAPS guarantee jitter-free axis coordination; 660 µW ISB3 enables safe sleep-mode retention during idle cycles. | Use Scenario: Capturing synchronized analog-to-digital samples from multiple flight sensors (IMU, pressure, temp) before packetization. IC Role / Device Role / Timing Role: Left port accepts streaming ADC data; right port services ARM Cortex-M7 host CPU for timestamped readout - both accessing overlapping buffers. Use Value: True dual-porting prevents sample loss during CPU servicing; −40°C to +85°C rating ensures reliability at altitude and under thermal stress. |
| Industrial Ethernet Gateway | Medical Imaging Buffer |
Use Scenario: Bridging time-critical PROFINET IRT traffic and slower Modbus TCP requests in factory-floor gateways. IC Role / Device Role / Timing Role: Left port handles real-time EtherCAT frame assembly; right port manages TCP/IP stack memory - coordinated via hardware semaphores. Use Value: On-chip semaphore logic (A0–A2 addressed) replaces software mutexes, reducing latency variance below 1 µs in deterministic networks. | Use Scenario: Storing raw ultrasound line data during beamforming before GPU-accelerated reconstruction. IC Role / Device Role / Timing Role: High-bandwidth left-port write (from ADC/FPGA) feeds right-port read (to PCIe DMA engine), with BUSY flag preventing overwrites during burst reads. Use Value: 32K × 16 capacity holds >128 scan lines at 16-bit depth; 15 ns access sustains >60 MB/s sustained throughput without wait states. |
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-15AXC | 5V-tolerant I/O, 15 ns access, 32K × 16, but requires 5V supply and lacks integrated semaphore logic | Legacy 5V systems only; not suitable for 3.3V-native designs or semaphore-driven IPC | Select only if maintaining 5V infrastructure; verify level-shifting for 3.3V controllers |
| AS7C33256P-15TIN | 3.3V, 32K × 16, 15 ns, but single-port only and no arbitration/BUSY/semaphore features | Cost-sensitive non-concurrent applications; cannot replace dual-port functionality | Use only where true simultaneous access is unnecessary - e.g., simple buffer staging with software-managed handshaking |
Compared with CY7C028V-15AXC and AS7C33256P-15TIN, the 70V27L15PFGI8 uniquely delivers 3.3V dual-port operation with hardware semaphore and BUSY arbitration - eliminating external logic and software overhead required by alternatives.
Availability
70V27L15PFGI8 is available at Aetrix Electronics and suitable for real-time motion control, avionics data acquisition, industrial Ethernet gateway, and medical imaging buffer applications requiring stable component supply and long-term industrial qualification.
Supply support for 70V27L15PFGI8 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
Integrated Device Technology (IDT), now part of Renesas Electronics, designs high-performance timing, memory, and interface solutions for communications, computing, and industrial markets.
The IDT70V27 family was engineered specifically for deterministic, low-latency shared-memory inter-processor communication - targeting applications where software-managed synchronization introduces unacceptable jitter or CPU load.
FAQ
What is the maximum operating frequency supported by the 70V27L15PFGI8?
The 70V27L15PFGI8 does not specify a clock frequency; it is an asynchronous SRAM. Its performance is defined by timing parameters such as tRC = 15 ns (max read cycle time), enabling effective operation up to ~66 MHz in tightly controlled systems. Actual system bandwidth depends on bus protocol, controller timing margins, and PCB layout - not an internal clock.
Does the 70V27L15PFGI8 support both Master and Slave configurations simultaneously?
No - the 70V27L15PFGI8 operates exclusively as either Master (M/S = VIH) or Slave (M/S = VIL) per device. In cascaded 32-bit+ systems, one physical unit is designated Master (driving BUSY output), while others are Slaves (accepting BUSY input). Configuration is fixed per unit at power-up via the M/S pin voltage level.
How is semaphore functionality implemented in the 70V27L15PFGI8?
The 70V27L15PFGI8 implements eight hardware semaphore flags accessible via A0–A2 address lines when SEM = VIL and CE = VIH. Each flag is written via I/O0 and read across all 16 I/O lines. This eliminates software polling and provides atomic, hardware-enforced resource locking between ports - critical for deterministic multi-processor coordination.
Can the 70V27L15PFGI8 be used in commercial-temperature applications?
Yes - the 70V27L15PFGI8 is rated for industrial temperature (−40°C to +85°C), which fully encompasses commercial range (0°C to +70°C). Its specifications - including 15 ns access time and 660 µW standby - are guaranteed across the full industrial range, making it suitable for both commercial and harsher environments without derating.
What are the power supply requirements for reliable operation of the 70V27L15PFGI8?
The 70V27L15PFGI8 requires a single 3.3 V supply with ±0.3 V tolerance (3.0 V to 3.6 V). Ten dedicated VDD and ten VSS pins must be individually decoupled with 0.1 µF ceramic capacitors near the package. Supply sequencing is not required, but VDD must stabilize before applying address/control signals to prevent undefined behavior.
70V27L15PFGI8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 100-LQFP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Dual Port, Asynchronous
- Memory Size:
- 512Kbit
- Memory Organization:
- 32K x 16
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 15ns
- Access Time:
- 15 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)
70V27L15PFGI8 FAQ
1.How can I place an order for 70V27L15PFGI8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 70V27L15PFGI8 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 70V27L15PFGI8 reliable?
The price and inventory of 70V27L15PFGI8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 70V27L15PFGI8 is usually 5 days.
3.What payment methods are accepted for 70V27L15PFGI8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 70V27L15PFGI8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 70V27L15PFGI8?
70V27L15PFGI8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 70V27L15PFGI8 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 70V27L15PFGI8?
For technical support, including 70V27L15PFGI8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 70V27L15PFGI8 requirements.
6.How does Aetrix verify that 70V27L15PFGI8 is sourced from the original manufacturer or authorized distributors?
All 70V27L15PFGI8 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 70V27L15PFGI8 meets industry standards.
7.What is the process for return or replacement of 70V27L15PFGI8?
All 70V27L15PFGI8 units undergo pre-shipment inspection (PSI). If there is an issue with 70V27L15PFGI8, 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 70V27L15PFGI8 part is unused and in its original packaging.
Return procedure for 70V27L15PFGI8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
70V27L15PFGI8 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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24LC01BT-I/OT
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M24C02-FMC6TG
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AT24CS02-SSHM-T
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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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