My Inquiry
My Account
Renesas 70V08L15PFG
- Part No.:
- 70V08L15PFG
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 100-LQFP
- Datasheet:
-
70V08L15PFG.pdf
- Description:
- IC SRAM 512KBIT PARALLEL 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,588
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
70V08L15PFG from IDT (now Renesas) is a high-speed 3.3V 64K × 8 true dual-ported static RAM with independent left/right ports, 15 ns max access time (commercial grade), LVTTL-compatible I/O, and on-chip semaphore/interrupt/arbitration logic. It enables simultaneous read/write to the same memory location in real-time interprocessor communication systems such as telecom line cards and industrial PLCs.
For engineers reviewing the 70V08L15PFG datasheet, 70V08L15PFG pinout, 70V08L15PFG application, or 70V08L15PFG equivalent, key selection considerations include dual-port arbitration timing (tAPS = 5 ns), BUSY flag behavior under M/S = VIH/VIL configuration, semaphore write-to-read latency (tSWRD = 5 ns), and 100-pin TQFP package compatibility with legacy IDT70V08 designs.
Technical Context
The 70V08L15PFG implements fully asynchronous dual-port operation with separate address, control, and data buses per port. Its on-chip arbitration logic resolves contention via hardware BUSY flag assertion (push-pull, not open-drain) and supports both master/slave configurations through the M/S pin - enabling one port to act as BUSY output (VIH) while the other acts as BUSY input (VIL).
It integrates dedicated semaphore registers (8 flags, addressed by A0–A2) and interrupt mailbox logic (INTL/INTR triggered at FFFE/FFFF), all operating without external glue logic. The device uses CMOS high-performance fabrication for 550 mW typical active power and 1 mW typical standby power at 3.3 V ±0.3 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 64K × 8 bits (512 Kbit), true dual-port SRAM with independent left/right access paths |
| Access Time (tAA) | 15 ns max (commercial grade); determines minimum clock period for synchronous interface integration |
| Supply Voltage | 3.3 V ±0.3 V; LVTTL-compatible I/O thresholds (VIH = 2.0 V min, VIL = 0.8 V max) |
| Operating Temperature | 0°C to +70°C (commercial); validated for stable operation across full range without derating |
| Power Consumption | 550 mW typical active, 1 mW typical standby (ISB3); enables low-power system sleep modes |
| Package | 100-pin TQFP (14 mm × 14 mm × 1.4 mm); RoHS-compliant, green variant available |
| Arbitration Timing | tAPS = 5 ns setup; ensures deterministic priority resolution during simultaneous address-match contention |
Pinout & Package
70V08L15PFG 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 pins require local 3.3 V decoupling; all VSS pins must be connected to ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CE0L, CE1L / CE0R, CE1R | Dual chip enable inputs per port | Enable depth expansion without external logic; CE0/CE1 allow independent port power-down control |
| R/WL, R/WR | Read/write direction control | Active-low; defines data flow direction per port independently (no shared bus dependency) |
| OEL, OER | Output enable per port | Tri-states I/O0–I/O7 when deasserted; enables bus sharing between multiple devices |
| A0L–A15L / A0R–A15R | Address inputs per port | 16-bit address bus per port; supports full 64K addressing without multiplexing |
| I/O0L–I/O7L / I/O0R–I/O7R | Bidirectional data I/O per port | True dual-port data path; allows simultaneous read+write to same location with BUSY coordination |
| SEML, SEMR | Semaphore enable | Activates semaphore register access (A0–A2) when CE = VIH and SEM = VIL |
| INTL, INTR | Interrupt flag outputs | Open-collector compatible (push-pull); asserted on mailbox writes (FFFE/FFFF) for interprocessor signaling |
| BUSYL, BUSYR | Port arbitration status | Push-pull BUSY flag; output when M/S = VIH (master), input when M/S = VIL (slave); blocks writes on contention |
| M/S | Master/slave select | Configures BUSY pin role: VIH → BUSY output (master), VIL → BUSY input (slave) |
Key Features
| Feature | Design Value |
|---|---|
| True dual-port architecture | Enables concurrent read/write to identical memory addresses with hardware arbitration-no software overhead or external logic required |
| On-chip semaphore logic | Eight dedicated hardware semaphore flags (A0–A2 addressable) with atomic read/write; eliminates race conditions in multi-CPU resource locking |
| Hardware interrupt mailbox | Fixed-address interrupt triggers (FFFE/FFFF) provide deterministic interprocessor messaging without polling or timer dependencies |
| Asynchronous port operation | Left and right ports operate fully independently-no clock synchronization needed between processors or subsystems |
| Low-power standby modes | Four ISB modes (ISB1–ISB4) support granular power gating: full standby (1 mW), single-port active (105 mA typ), etc. |
Applications
| Telecom Line Card Control | Industrial PLC Inter-CPU Messaging |
|---|---|
|
Use Scenario: Two DSPs exchange real-time packet metadata and status flags in a TDM-based line card. IC Role / Device Role / Timing Role: 70V08L15PFG serves as shared mailbox and semaphore hub-coordinating buffer ownership and interrupt delivery between master control CPU and slave framer processor. Use Value: Eliminates need for external arbitration logic; 15 ns access and 5 ns tAPS ensure sub-microsecond interprocessor handshaking latency. |
Use Scenario: Redundant safety and motion control CPUs share I/O state and fault logs in an ISO 13849-compliant PLC. IC Role / Device Role / Timing Role: 70V08L15PFG provides atomic semaphore access and interrupt-triggered event logging between dual-core ARM Cortex-R5 processors. Use Value: Hardware-enforced mutual exclusion prevents race conditions during critical safety state updates; push-pull BUSY flags guarantee deterministic write blocking. |
| Avionics Data Concentrator | Medical Imaging Subsystem Sync |
|
Use Scenario: ARINC 664 (AFDX) end-system aggregates sensor data from multiple LRUs into a unified health monitor. IC Role / Device Role / Timing Role: 70V08L15PFG acts as time-critical shared memory between flight management computer (FMC) and health monitoring unit (HMU), using INTL/INTR for fault alert propagation. Use Value: 3.3 V LVTTL compatibility simplifies interface to FPGA-based AFDX controllers; 100-pin TQFP fits constrained avionics board layouts. |
Use Scenario: MRI subsystem synchronizes gradient coil driver firmware with image reconstruction engine via shared parameter tables. IC Role / Device Role / Timing Role: 70V08L15PFG stores calibrated timing parameters and acquisition flags accessible simultaneously by FPGA-based controller and ARM-based recon processor. Use Value: True dual-port operation avoids pipeline stalls during real-time gradient waveform generation; tBDD ≤ 17 ns ensures valid data within tight timing budgets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-ported SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C028V-15AXC | 15 ns access, 64K × 16 organization, 3.3 V supply, but no integrated semaphore/interrupt logic | Requires external arbitration logic for multi-CPU use; better suited for wide-data-width buffering than interprocessor signaling | Select when data bus width >8 bits is required and arbitration is handled in FPGA or software |
| AS7C364B-15JCIN | 15 ns access, 64K × 8, 3.3 V, but single-port only with no BUSY/SEM/INT features | Cannot support simultaneous access or hardware resource locking; limited to simple shared-memory buffers | Select only for cost-sensitive, non-contention applications where dual-port functionality is unnecessary |
Compared with CY7C028V-15AXC and AS7C364B-15JCIN, the 70V08L15PFG uniquely delivers integrated arbitration, semaphore, and interrupt functions in a 64K × 8 footprint-reducing BOM count, PCB area, and firmware complexity in tightly coupled multi-processor systems.
Availability
70V08L15PFG is available at Aetrix Electronics and suitable for telecom infrastructure, industrial automation, and avionics applications requiring stable component supply, long-lifecycle support, and guaranteed traceability.
Supply support for 70V08L15PFG 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
IDT (Integrated Device Technology), now part of Renesas Electronics, is a fabless semiconductor company specializing in high-performance timing, memory, and interface solutions for communications and computing markets.
The 70V08L15PFG belongs to IDT's legacy dual-port SRAM product line, designed specifically for deterministic interprocessor communication in real-time embedded systems where hardware arbitration and low-latency shared memory are critical.
FAQ
What is the maximum operating temperature range for the 70V08L15PFG?
The 70V08L15PFG is rated for commercial temperature operation from 0°C to +70°C. It is not qualified for industrial (–40°C to +85°C) operation-this capability is reserved for the 70V08L20PFG variant with 20 ns access time. Thermal derating is not supported beyond the specified range.
How does the M/S pin affect BUSY pin behavior on the 70V08L15PFG?
When M/S = VIH, BUSYL and BUSYR function as push-pull outputs asserting BUSY during port contention. When M/S = VIL, BUSYL and BUSYR become inputs that inhibit writes when driven low by another master device. This dual-role enables flexible master/slave topology configuration without external logic.
Can the 70V08L15PFG support simultaneous read and write to the same memory address?
Yes-the 70V08L15PFG uses true dual-port SRAM cells enabling simultaneous access to any memory location. If both ports target the same address, hardware arbitration asserts BUSY on the later-arriving port, ensuring deterministic resolution without data corruption or undefined behavior.
What is the purpose of the SEM pins on the 70V08L15PFG?
The SEML and SEMR pins enable access to the on-chip semaphore register file (8 flags). When CE = VIH and SEM = VIL, the device routes I/O0–I/O7 to semaphore control instead of RAM-allowing atomic set/clear operations without affecting main memory contents or requiring software locks.
Does the 70V08L15PFG require external pull-up resistors on INTL/INTR pins?
No-INTL and INTR are push-pull (totem-pole) outputs per datasheet Note 2, not open-drain. They drive actively high or low and do not require external pull-ups. However, if interfacing with legacy 5 V logic, level-shifting circuitry may be needed due to 3.3 V output swing.
70V08L15PFG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 100-LQFP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Dual Port, Asynchronous
- Memory Size:
- 512Kbit
- Memory Organization:
- 64K x 8
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 15ns
- Access Time:
- 15 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)
70V08L15PFG FAQ
1.How can I place an order for 70V08L15PFG through Aetrix?
Please submit a Request for Quotation (RFQ) for 70V08L15PFG 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 70V08L15PFG reliable?
The price and inventory of 70V08L15PFG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 70V08L15PFG is usually 5 days.
3.What payment methods are accepted for 70V08L15PFG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 70V08L15PFG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 70V08L15PFG?
70V08L15PFG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 70V08L15PFG 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 70V08L15PFG?
For technical support, including 70V08L15PFG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 70V08L15PFG requirements.
6.How does Aetrix verify that 70V08L15PFG is sourced from the original manufacturer or authorized distributors?
All 70V08L15PFG 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 70V08L15PFG meets industry standards.
7.What is the process for return or replacement of 70V08L15PFG?
All 70V08L15PFG units undergo pre-shipment inspection (PSI). If there is an issue with 70V08L15PFG, 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 70V08L15PFG part is unused and in its original packaging.
Return procedure for 70V08L15PFG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
70V08L15PFG Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
