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Renesas 7134SA35P
- Part No.:
- 7134SA35P
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 48-DIP (0.600", 15.24mm)
- Datasheet:
-
7134SA35P.pdf
- Description:
- IC SRAM 32KBIT PARALLEL 48DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,374
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Product details
Overview
IDT7134SA35P from Integrated Device Technology is a high-speed 4K × 8 dual-port static RAM with 35 ns maximum read cycle time, TTL-compatible 5 V ±10% operation, and independent asynchronous left/right port access. It features active power dissipation of 700 mW (typ.), standby power of 5 mW (typ.), and operates across the commercial temperature range (0°C to +70°C). This device is used in real-time inter-processor communication systems requiring zero-wait-state memory arbitration.
For engineers reviewing the IDT7134SA35P datasheet, IDT7134SA35P pinout, IDT7134SA35P application, or IDT7134SA35P equivalent, key selection considerations include dual-port timing isolation, CE-controlled power-down behavior, 48-pin plastic DIP package compatibility, and absence of on-chip arbitration logic - requiring external contention management.
Technical Context
The IDT7134SA35P implements fully asynchronous dual-port architecture with separate address decoders, control logic, and I/O drivers per port. Each port has dedicated CE, OE, and R/W signals, enabling independent read/write cycles without internal synchronization.
It uses CMOS high-performance fabrication for low-power operation and supports TTL-level signaling. The device lacks built-in bus arbitration; data integrity during simultaneous access to the same memory location must be ensured externally via system-level protocol or semaphore logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 4K × 8 bits (32 Kbit total, two independent 4K address spaces) |
| Read Cycle Time (tRC) | 35 ns max - defines minimum interval between successive reads on same port |
| Address Access Time (tAA) | 35 ns max - determines earliest valid data output after address stabilization |
| Active Power Dissipation | 700 mW typical - enables use in thermally constrained embedded controllers |
| Standby Power Dissipation | 5 mW typical - supports low-power sleep modes when port CE is high |
| Supply Voltage | 5 V ±10% - compatible with legacy TTL and mixed-signal 5 V systems |
| Operating Temperature | 0°C to +70°C - qualified for commercial-grade industrial control and instrumentation |
Pinout & Package
Package: 48-pin plastic DIP (P48-1), body dimensions ≈ 0.55 in × 2.43 in × 0.18 in. All VCC and GND pins require direct connection to respective supply rails.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0L–A11L | Left port address inputs | 12-bit address bus for left-side memory access (4K = 2¹²) |
| I/O0L–I/O7L | Left port bidirectional data lines | 8-bit parallel data path; direction controlled by R/WL and OEL |
| CEL, OEL, R/WL | Left port control signals | Chip enable, output enable, and read/write select - fully asynchronous |
| A0R–A11R | Right port address inputs | Independent 12-bit address space; no electrical or timing coupling to left port |
| I/O0R–I/O7R | Right port bidirectional data lines | Electrically isolated 8-bit path; supports concurrent read/write across ports |
| CER, OER, R/WR | Right port control signals | Functionally identical to left-side controls but with independent timing domains |
| VCC, GND | Power and ground | Multiple VCC/GND pins distributed to minimize switching noise and IR drop |
Key Features
| Feature | Design Value |
|---|---|
| Dual-port asynchronous access | Enables real-time data exchange between two independent processors or buses without clock domain synchronization |
| CE-controlled power-down | Reduces port-specific current to 5 mW (typ.) when CE = VIH, supporting selective low-power operation |
| TTL-compatible interface | Eliminates level-shifting requirements in legacy 5 V microcontroller and FPGA designs |
| No on-chip arbitration | Allows full timing flexibility but requires external logic or software protocol to resolve port contention |
| 48-pin plastic DIP packaging | Supports through-hole prototyping, manual rework, and long-term availability in industrial control applications |
Applications
| Real-Time Inter-Processor Communication | Digital Signal Processing Buffering |
|---|---|
Use Scenario: Two microcontrollers exchange sensor data and control commands via shared memory without interrupt latency. IC Role / Device Role / Timing Role: Dual-port SRAM acts as a zero-latency mailbox; left port serves CPU A, right port serves CPU B. Use Value: Eliminates polling or interrupt overhead; 35 ns access enables sub-microsecond data handoff between synchronized tasks. |
Use Scenario: An FPGA-based FFT engine writes time-domain samples while a DSP reads frequency-domain results. IC Role / Device Role / Timing Role: IDT7134SA35P provides non-blocking, concurrent read/write paths for pipelined signal processing stages. Use Value: Sustains continuous data flow at 28.6 MB/s (1/35 ns × 8 bits), avoiding pipeline stalls in real-time audio/video systems. |
| Legacy Industrial Controller Memory Expansion | Test Equipment Data Capture Buffer |
Use Scenario: Retrofitting a PLC with additional data logging capability using existing 5 V TTL bus architecture. IC Role / Device Role / Timing Role: IDT7134SA35P replaces slower single-port SRAM, enabling simultaneous firmware execution and log write operations. Use Value: Maintains backward compatibility while doubling effective memory bandwidth via dual-port concurrency. |
Use Scenario: High-speed oscilloscope captures transient waveforms into memory while host processor retrieves prior acquisitions. IC Role / Device Role / Timing Role: Left port accepts ADC stream at 28.6 MSPS; right port services USB or Ethernet transfer at lower rate. Use Value: Prevents capture gaps during data offload - critical for glitch detection and compliance testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C133-35PC | 35 ns tRC, 5 V, 4K × 8, but uses separate byte-enable pins and lacks R/W pin - requires OE-controlled write strobe | Requires redesign of write control logic; not drop-in compatible with IDT7134SA35P's R/WL/R/WR interface | Select only if existing design already uses Cypress-style control scheme and board layout allows pin remapping |
| IS61LV25616AL-10TLI | 10 ns tRC, 3.3 V, 256K × 16, LVCMOS interface - incompatible voltage and density; no dual-port architecture | Not functionally equivalent - this is a single-port low-voltage SRAM; unsuitable for true dual-access use cases | Reject for dual-port replacement; consider only for greenfield 3.3 V designs where concurrency is handled externally |
Compared with CY7C133-35PC and IS61LV25616AL-10TLI, the IDT7134SA35P uniquely delivers TTL-compatible 5 V dual-port operation with R/W-controlled writes and 35 ns timing in a through-hole DIP package - making it irreplaceable for maintaining legacy industrial controller functionality without PCB revision.
Availability
IDT7134SA35P is available at Aetrix Electronics and suitable for real-time inter-processor communication, digital signal processing buffering, and legacy industrial controller memory expansion requiring stable component supply over extended production lifecycles.
Supply support for IDT7134SA35P 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) is a fabless semiconductor company specializing in timing, memory interface, RF, and high-performance computing solutions, acquired by Renesas Electronics in 2019.
The IDT7134SA series was designed for deterministic, zero-wait-state memory sharing in dual-CPU and FPGA-processor architectures where external arbitration is preferred over integrated logic - targeting aerospace, test equipment, and industrial automation.
FAQ
What is the maximum operating speed of the IDT7134SA35P?
The IDT7134SA35P has a guaranteed maximum read cycle time (tRC) of 35 ns across the commercial temperature range (0°C to +70°C). This corresponds to a theoretical maximum throughput of approximately 28.6 million 8-bit words per second per port. The 35 ns rating applies to both read and write cycles under specified VCC = 5 V ±10% conditions and load conditions defined in the datasheet.
Does the IDT7134SA35P support battery backup or data retention mode?
No, the IDT7134SA35P does not support battery backup or low-voltage data retention. That capability is exclusive to the LA variant (e.g., IDT7134LA35P), which specifies 2 V data retention and 1 mW standby power. The "SA" suffix denotes standard power operation with 5 mW typical standby current and no VDR specification - confirming it is not rated for retention below 4.5 V.
Can the IDT7134SA35P be used in systems requiring automatic bus arbitration?
No, the IDT7134SA35P provides no on-chip arbitration logic. Its functional description explicitly states it is intended for systems that "cannot tolerate wait states or are designed to be able to externally arbitrate or withstand contention." Designers must implement external hardware (e.g., semaphores, priority encoders) or software protocols to prevent simultaneous writes to the same memory location - otherwise, data corruption may occur.
What package type is used for the IDT7134SA35P?
The IDT7134SA35P is packaged in a 48-pin plastic dual in-line package (P48-1), with body dimensions approximately 0.55 in × 2.43 in × 0.18 in. This through-hole package is distinct from ceramic DIP (C48-2), PLCC (J52-1), LCC (L48-1), or flatpack (F48-1) variants - and is explicitly indicated by the "P" suffix in the part number IDT7134SA35P.
Is the IDT7134SA35P pin-compatible with other speed grades in the same family?
Yes, all IDT7134SA variants (e.g., IDT7134SA20P, IDT7134SA25P, IDT7134SA35P) share identical pinouts and package footprints within the 48-pin plastic DIP configuration. Timing parameters differ, but electrical interface, control signal definitions, and physical layout are fully consistent - enabling speed-grade upgrades without PCB changes, provided system timing margins accommodate the slower grade.
7134SA35P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 48-DIP (0.600", 15.24mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Dual Port, Asynchronous
- Memory Size:
- 32Kbit
- Memory Organization:
- 4K x 8
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 35ns
- Access Time:
- 35 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 48-PDIP
7134SA35P FAQ
1.How can I place an order for 7134SA35P through Aetrix?
Please submit a Request for Quotation (RFQ) for 7134SA35P 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 7134SA35P reliable?
The price and inventory of 7134SA35P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7134SA35P is usually 5 days.
3.What payment methods are accepted for 7134SA35P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7134SA35P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7134SA35P?
7134SA35P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7134SA35P 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 7134SA35P?
For technical support, including 7134SA35P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7134SA35P requirements.
6.How does Aetrix verify that 7134SA35P is sourced from the original manufacturer or authorized distributors?
All 7134SA35P 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 7134SA35P meets industry standards.
7.What is the process for return or replacement of 7134SA35P?
All 7134SA35P units undergo pre-shipment inspection (PSI). If there is an issue with 7134SA35P, 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 7134SA35P part is unused and in its original packaging.
Return procedure for 7134SA35P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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