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Renesas 70T3719MS166BBG
- Part No.:
- 70T3719MS166BBG
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 324-BGA
- Datasheet:
-
70T3719MS166BBG.pdf
- Description:
- IC SRAM 18MBIT PARALLEL 324PBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,135
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Product details
Overview
70T3719MS166BBG from Integrated Device Technology is a high-speed 256K x 72-bit synchronous dual-port SRAM with true dual-port architecture enabling simultaneous read/write access to the same memory location on independent left and right ports. It operates at 166MHz (6ns cycle time), supports selectable 2.5V or 3.3V I/O interfaces per port, and delivers 23.9Gbps aggregate bandwidth. It is used in high-throughput packet buffering and real-time data coherency applications in telecom line cards and network processors.
For engineers reviewing the 70T3719MS166BBG datasheet, 70T3719MS166BBG pinout, 70T3719MS166BBG application, or 70T3719MS166BBG equivalent, key selection criteria include pipelined vs. flow-through output mode timing, independent port voltage configuration via OPT pins, collision/interrupt flag behavior, JTAG boundary-scan support, and sleep-mode current draw under ZZ assertion.
Technical Context
The 70T3719MS166BBG implements fully synchronous dual-port operation with separate clock inputs (CLKL/CLKR), independent chip enables (CE0L/CE1L, CE0R/CE1R), and byte-enable controls (BE0–BE7 per port). Its memory array uses true dual-port cells, allowing concurrent access without arbitration logic. Address counters with ADS strobe, CNTEN enable, and REPEAT reset provide burst-addressing capability for sequential data transfers.
Each port supports configurable I/O voltage (2.5V or 3.3V) via dedicated OPT and VDDQ pins, while core logic runs at fixed 2.5V. Pipelined output mode achieves 3.6ns clock-to-data (tCD2) at 166MHz; flow-through mode offers lower latency but longer cycle time (20ns min). Collision detection and interrupt flags (COLL/COLR, INTL/INTR) are hardware-asserted on simultaneous write attempts to the same address.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 256K × 72 bits (18-Mbit total); supports depth expansion via dual CE pairs without external logic |
| Max Clock Frequency | 166MHz (6ns cycle time in pipelined mode); enables 23.9Gbps aggregate bandwidth across both ports |
| Access Timing | 3.6ns clock-to-data valid (tCD2) in pipelined mode; 12ns in flow-through mode (tCD1) |
| I/O Voltage Support | Selectable 2.5V ±100mV or 3.3V ±150mV per port via OPT pin; VDDQ must match selected level |
| Operating Temperature | Commercial grade only (0°C to +70°C); industrial variant (S133) not applicable to this S166 speed grade |
| Power Consumption | 900mA max dynamic current (both ports active); 20mA max sleep-mode current (ZZ asserted) |
| Package | 324-pin Green BGA (BBG), 19mm × 19mm body, 1.0mm ball pitch, RoHS-compliant |
Pinout & Package
70T3719MS166BBG is housed in a 324-pin Ball Grid Array (BGA) package (BBG324), measuring 19mm × 19mm × 1.76mm with 1.0mm ball pitch. All VDD pins require connection to 2.5V; VDDQ pins must be set to 2.5V or 3.3V depending on OPT pin state per port. VSS pins connect to ground. Pin functions are symmetrically distributed across left (L) and right (R) ports.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLKL / CLKR | Clock input (each port) | Synchronous edge-triggered timing reference; all control/data registers sample on rising edge |
| CE0L/CE1L, CE0R/CE1R | Chip enable pair (each port) | Dual CE allows depth expansion; CE0=low + CE1=high enables port; both high disables port |
| R/WL / R/WR | Read/write direction control | High = read, low = write; asynchronous relative to OE but synchronous to clock for data transfer |
| OEL / OER | Output enable (asynchronous) | Controls tri-state output drivers independently of clock; high = outputs disabled (Hi-Z) |
| BE0L–BE7L / BE0R–BE7R | Byte enable (9-bit bytes) | Per-byte write masking; each BE controls 9 I/O bits (I/O0–I/O71 grouped as 8 × 9-bit bytes) |
| PL/FTL / PL/FTR | Pipeline/Flow-through mode select | VDD = pipelined (1-cycle delay), VSS = flow-through (combinatorial output); sets tCD1/tCD2 behavior |
| ZZL / ZZR | Sleep mode control | Asserted high disables dynamic inputs (except JTAG), reducing current to ≤20mA; static inputs remain functional |
| TDI/TDO/TCK/TMS/TRST | JTAG boundary-scan interface | IEEE 1149.1 compliant; supports device testing and in-system programming without affecting memory operation |
Key Features
| Feature | Design Value |
|---|---|
| True dual-port memory cells | Enables simultaneous, independent read/write access to identical addresses-critical for lock-free inter-processor communication |
| Selectable pipelined or flow-through output | Configurable latency model: pipelined for maximum throughput (3.6ns tCD2), flow-through for minimal latency (12ns tCD1) |
| Hardware collision and interrupt flags | COLL/COLR and INTL/INTR signals assert synchronously on conflicting writes-eliminates software polling overhead |
| Independent per-port I/O voltage control | OPTL/OPTR pins allow mixed-voltage system integration: e.g., 3.3V FPGA interface on left port, 2.5V ASIC on right port |
| Dual-cycle deselect (DCD) in pipelined mode | Ensures clean bus release during rapid CE toggling-prevents metastability in depth-expanded memory systems |
| JTAG boundary-scan support | Full IEEE 1149.1 compliance enables production testability and in-circuit debugging without additional test fixtures |
Applications
| Telecom Packet Buffering | Network Processor Coherency |
|---|---|
Use Scenario: Line cards in 10G/40G routers buffer ingress/egress packets with strict latency budgets and zero packet loss requirements. IC Role / Device Role / Timing Role: Dual-port SRAM acts as shared FIFO between ingress parser and egress scheduler; left port accepts packets, right port forwards them. Use Value: Simultaneous access eliminates arbitration stalls; 166MHz operation sustains >20Gbps line-rate throughput with sub-10ns port-to-port delay. |
Use Scenario: Multi-core network processors require cache-coherent shared memory for control-plane updates and statistics aggregation. IC Role / Device Role / Timing Role: 70T3719MS166BBG serves as tightly coupled scratchpad memory accessible by two CPU clusters with hardware collision detection. Use Value: COLL/INTR flags enable immediate resolution of write conflicts; pipelined mode ensures deterministic 3.6ns read response for real-time scheduling decisions. |
| Real-Time Signal Processing | Industrial Motion Control |
Use Scenario: Radar DSP subsystems stream ADC samples into memory while FFT engines concurrently read prior frames for processing. IC Role / Device Role / Timing Role: Left port ingests streaming 72-bit sample words; right port feeds FFT pipeline with pre-aligned frame buffers. Use Value: Address counter with ADS/CNTEN/REPEAT enables automatic burst addressing-reducing CPU overhead and guaranteeing deterministic access patterns. |
Use Scenario: CNC controllers coordinate servo motor position updates and sensor feedback loops with microsecond-level determinism. IC Role / Device Role / Timing Role: Dual-port SRAM stores synchronized motion profiles and encoder readings; one port for PLC update, another for real-time servo loop. Use Value: Sleep mode (ZZ assertion) reduces power to 20mA during idle cycles; JTAG support enables field firmware validation without disassembly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C1375BV33-167AXC | 167MHz max, 256K × 36-bit width, 3.3V core/I/O, no per-port voltage selection | Half the data width; requires two devices for 72-bit interface; lacks collision/interrupt flags | Choose when system uses only 3.3V logic and narrower bus width suffices; avoid if hardware conflict detection is required. |
| IDT70V9279L133PF | 133MHz max, 128K × 72-bit, 3.3V/2.5V I/O, industrial temp (−40°C to +85°C), same BBG324 package | Lower speed grade and density; supports industrial temperature but not 166MHz operation | Choose for cost-sensitive industrial deployments where 133MHz timing meets requirements; not drop-in compatible due to speed and density mismatch. |
Compared with CY7C1375BV33-167AXC and IDT70V9279L133PF, the 70T3719MS166BBG uniquely delivers 166MHz 256K×72 operation with per-port voltage flexibility, hardware collision signaling, and JTAG-making it optimal for high-bandwidth, mixed-voltage telecom and real-time embedded systems where timing determinism and debugability are critical.
Availability
70T3719MS166BBG is available at Aetrix Electronics and suitable for telecom infrastructure, network processor design, and real-time signal processing applications requiring stable component supply, long-term lifecycle support, and traceable green-sourced packaging.
Supply support for 70T3719MS166BBG 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, is a fabless semiconductor company specializing in timing, memory interface, RF, and high-performance computing solutions.
The 70T3719MS166BBG belongs to IDT's high-speed synchronous dual-port SRAM product line, engineered for deterministic, low-latency memory sharing in multi-processor and packet-processing systems where concurrent access and hardware coherency signaling are essential.
FAQ
What is the maximum operating frequency of the 70T3719MS166BBG?
The 70T3719MS166BBG is rated for 166MHz operation in pipelined mode (6ns cycle time), delivering guaranteed 3.6ns clock-to-data valid (tCD2) timing. This speed grade is commercial-only; industrial variants operate up to 133MHz. The device does not support overclocking beyond its specified 166MHz limit under recommended operating conditions.
Does the 70T3719MS166BBG support independent voltage selection on each port?
Yes, the 70T3719MS166BBG supports independent I/O voltage selection per port via OPTL and OPTR pins. Setting OPTX to VDD (2.5V) configures that port for 3.3V I/O levels with corresponding VDDQX = 3.3V; setting OPTX to VSS (0V) configures 2.5V I/O operation with VDDQX = 2.5V. Core VDD remains fixed at 2.5V for both ports.
How does collision detection work on the 70T3719MS166BBG?
The 70T3719MS166BBG asserts COLL (left port) or COLR (right port) synchronously when both ports attempt to write to the same memory address within one clock cycle. These open-drain flags require external pull-up resistors and can trigger interrupts or stall write operations. Detection is hardware-based and does not rely on software arbitration, ensuring deterministic response within 3.6ns of the violating clock edge.
Can the 70T3719MS166BBG be used in industrial temperature environments?
No-the 70T3719MS166BBG is specified only for commercial temperature range (0°C to +70°C). The industrial-grade variant is the 70T3719MS133BBG (133MHz), which operates from −40°C to +85°C. Using the S166 speed grade outside its rated ambient range may result in timing violations, increased current draw, or functional failure.
What JTAG functionality does the 70T3719MS166BBG provide?
The 70T3719MS166BBG implements full IEEE 1149.1 JTAG boundary-scan with TDI, TDO, TCK, TMS, and TRST pins. It supports device identification, pin-level interconnect testing, and in-system programming of configuration registers. JTAG remains operational even during sleep mode (ZZ assertion), enabling diagnostics without waking the core logic.
70T3719MS166BBG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 324-BGA
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Dual Port, Synchronous
- Memory Size:
- 18Mbit
- Memory Organization:
- 256K x 72
- Memory Interface:
- Parallel
- Clock Frequency:
- 166 MHz
- Write Cycle Time - Word, Page:
- -
- Access Time:
- 3.6 ns
- Voltage - Supply:
- 2.4V ~ 2.6V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 324-PBGA (19x19)
70T3719MS166BBG FAQ
1.How can I place an order for 70T3719MS166BBG through Aetrix?
Please submit a Request for Quotation (RFQ) for 70T3719MS166BBG 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 70T3719MS166BBG reliable?
The price and inventory of 70T3719MS166BBG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 70T3719MS166BBG is usually 5 days.
3.What payment methods are accepted for 70T3719MS166BBG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 70T3719MS166BBG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 70T3719MS166BBG?
70T3719MS166BBG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 70T3719MS166BBG 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 70T3719MS166BBG?
For technical support, including 70T3719MS166BBG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 70T3719MS166BBG requirements.
6.How does Aetrix verify that 70T3719MS166BBG is sourced from the original manufacturer or authorized distributors?
All 70T3719MS166BBG 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 70T3719MS166BBG meets industry standards.
7.What is the process for return or replacement of 70T3719MS166BBG?
All 70T3719MS166BBG units undergo pre-shipment inspection (PSI). If there is an issue with 70T3719MS166BBG, 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 70T3719MS166BBG part is unused and in its original packaging.
Return procedure for 70T3719MS166BBG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
70T3719MS166BBG 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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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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