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Renesas 7134SA45CB
- Part No.:
- 7134SA45CB
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 48-DIP (0.600", 15.24mm)
- Datasheet:
-
7134SA45CB.pdf
- Description:
- IC SRAM 32KBIT PARALLEL SB48
- Quantity:
- Payment:
- Shipping:
Inventory:1,016
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Product details
Overview
IDT7134SA45CB from Renesas Electronics is a high-speed 4K × 8 dual-port static RAM with independent left/right asynchronous ports, 45 ns read cycle time (max), TTL-compatible 5 V ±10% operation, and military-grade temperature range (–55°C to +125°C). It enables concurrent memory access in real-time arbitration-free systems such as radar signal processors and avionics data buffers.
For engineers reviewing the IDT7134SA45CB datasheet, IDT7134SA45CB pinout, IDT7134SA45CB application, or IDT7134SA45CB equivalent, key selection criteria include dual-port contention management, 45 ns access timing, military QML-38535 compliance, low-power standby current (25 mA typical at TTL levels), and SB48 sidebraze DIP packaging for high-reliability environments.
Technical Context
The IDT7134SA45CB implements fully asynchronous dual-port architecture with separate address, control, and I/O buses per port-no on-chip arbitration logic. Each port features independent CE, OE, and R/W controls, enabling simultaneous but externally managed read/write operations to shared memory locations.
It uses CMOS high-performance fabrication for 700 mW typical active power and supports full standby mode via CE-driven power-down. The LA variant adds 2 V data retention; this SA variant prioritizes speed over battery backup, with no data retention specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 4K × 8 bits (32 Kbit); supports two independent 8-bit data paths without internal arbitration. |
| Read Cycle Time | 45 ns max; defines minimum interval between successive reads on same port under worst-case conditions. |
| Supply Voltage | 5.0 V ±10% (4.5–5.5 V); single-rail TTL-compatible interface eliminates need for level shifters. |
| Operating Temperature | –55°C to +125°C; qualified to MIL-PRF-38535 QML Class V for mission-critical military applications. |
| Active Current | 140 mA typical (both ports active, f = fMAX); enables predictable thermal design in dense embedded modules. |
| Standby Current | 25 mA typical (ISB1, both ports disabled, TTL-level inputs); reduces system power during idle intervals. |
| Package | 48-pin sidebraze DIP (SB48); hermetically sealed ceramic body with 0.62″ × 2.43″ footprint for high-vibration environments. |
Pinout & Package
Package: 48-pin sidebraze DIP (SB48), hermetic ceramic, 0.62 in × 2.43 in × 0.15 in body size, lead finish SnPb (obsolete except SB48/LC48/FP48 per PDN# SP-17-02).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0L–A11L | Left port address inputs | 12-bit address bus for left-side memory access; must be stable before tAA (45 ns max) for valid read. |
| A0R–A11R | Right port address inputs | Independent 12-bit address bus; allows concurrent addressing of same or different memory locations. |
| I/O0L–I/O7L | Left port bidirectional data | 8-bit tri-state data path; driven by R/WL and OEL; high-impedance when OEL = VIH or CE = VIH. |
| I/O0R–I/O7R | Right port bidirectional data | Electrically isolated 8-bit path; no internal contention protection-external arbitration required. |
| CEL, CER | Chip enable (left/right) | Active-low enables respective port; drives internal circuitry into ISB1/ISB2 standby when high. |
| OEL, OER | Output enable (left/right) | Active-low enables output drivers; high disables outputs to high-Z, preventing bus conflicts. |
| R/WL, R/WR | Read/write control (left/right) | Active-low selects write mode; high enables read; must be stable during address transitions. |
| VCC, GND | Power and ground | All VCC pins must be connected to 5 V supply; all GND pins tied to common ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Fully asynchronous dual-port operation | Enables independent, unsynchronized read/write access from two processors or subsystems without wait states. |
| 45 ns maximum read cycle time | Supports high-throughput data exchange in real-time digital signal processing pipelines (e.g., FFT buffers). |
| MIL-PRF-38535 QML Class V compliance | Guarantees reliability, screening, and traceability for aerospace, defense, and spaceflight hardware programs. |
| TTL-compatible 5 V interface | Direct connection to legacy microcontrollers, FPGAs, and ASICs without voltage translation circuitry. |
| Automatic CE-controlled power-down | Reduces dynamic current to 25 mA typical when port is deselected-critical for multi-port power budgeting. |
Applications
| Radar Signal Processing | Avionics Data Buffering |
|---|---|
|
Use Scenario: Real-time digitized RF sample buffering between ADC and DSP in airborne pulse-Doppler radar. IC Role / Device Role / Timing Role: Dual-port SRAM acts as ping-pong buffer-left port accepts streaming ADC data while right port feeds processed results to flight computer. Use Value: 45 ns access enables sub-microsecond latency handoff between acquisition and analysis domains without FIFO bottlenecks. |
Use Scenario: Inter-processor communication between flight control computer and inertial measurement unit in fly-by-wire systems. IC Role / Device Role / Timing Role: Shared memory node allowing deterministic, lock-free data exchange between safety-critical partitions. Use Value: Military temperature rating and QML qualification ensure uninterrupted operation during extreme thermal transients in high-altitude flight. |
| Secure Crypto Module Interface | Tactical Radio Baseband Processing |
|
Use Scenario: Key scheduling and round-data storage in NSA-certified Type 1 encryption hardware. IC Role / Device Role / Timing Role: Dual-port memory provides isolated access paths for host processor (key load) and crypto engine (round computation). Use Value: Hermetic SB48 package prevents tampering detection via environmental probing; 48-pin layout supports secure PCB routing. |
Use Scenario: Modem-to-RF front-end data staging in software-defined radios deployed in electronic warfare platforms. IC Role / Device Role / Timing Role: Memory bridge synchronizing burst-mode transmit/receive frames across heterogeneous baseband ICs. Use Value: Simultaneous port access eliminates arbitration logic, reducing latency critical for adaptive jamming response times. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AS7C34096B-45PCN | 45 ns access, 4K × 8, commercial temp only (0°C to +70°C), 52-pin PLCC, no military qualification. | Lacks QML-38535 compliance and extended temperature support; suitable for ground-based test equipment. | Select if cost-sensitive non-military designs require identical timing but accept commercial-grade reliability. |
| 7134LA45CB | Same 45 ns speed and SB48 package, but LA variant offers 2 V data retention and lower standby current (40 µA vs 25 mA). | Designed for battery-backed systems requiring nonvolatile holdover; not optimized for high-speed throughput. | Choose when power-off data preservation is mandatory, accepting trade-offs in active power and military screening scope. |
Compared with IDT7134SA45CB, AS7C34096B-45PCN lacks military qualification and temperature range, while 7134LA45CB trades speed stability for ultra-low standby and data retention-making IDT7134SA45CB the sole choice for high-reliability, high-speed, unbuffered dual-port operation in harsh environments.
Availability
IDT7134SA45CB is available at Aetrix Electronics and suitable for radar signal processing, avionics data buffering, and secure crypto module interfacing requiring stable component supply across extended lifecycle programs.
Supply support for IDT7134SA45CB 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 trusted microcontrollers, analog, power, and memory solutions for automotive, industrial, and infrastructure markets.
IDT7134SA45CB belongs to Renesas' legacy dual-port SRAM product line, engineered specifically for high-reliability, real-time embedded systems where deterministic memory access and military-grade ruggedness are mandatory.
FAQ
What is the maximum operating temperature range for IDT7134SA45CB?
IDT7134SA45CB is rated for –55°C to +125°C ambient temperature and qualified to MIL-PRF-38535 QML Class V. This military-grade thermal range ensures reliable operation in jet engine bays, missile guidance sections, and satellite payload compartments where passive cooling is unavailable.
Does IDT7134SA45CB support battery backup data retention?
No. IDT7134SA45CB is the Standard Power (SA) variant and does not include battery backup capability. Only the LA variant (e.g., IDT7134LA45CB) specifies 2 V data retention. The SA version prioritizes speed and active power efficiency over low-voltage holdover functionality.
Which package type is used by IDT7134SA45CB?
IDT7134SA45CB uses the 48-pin sidebraze DIP (SB48) package-a hermetically sealed ceramic body measuring 0.62 in × 2.43 in × 0.15 in. This package is explicitly retained under PDN# SP-17-02 for military applications despite SnPb lead finish obsolescence elsewhere.
How does IDT7134SA45CB handle simultaneous access to the same memory location from both ports?
IDT7134SA45CB provides no internal arbitration or collision detection. When both ports access the same address concurrently, data integrity is the user's responsibility. External logic (e.g., semaphores or priority encoders) must manage contention to prevent bus conflicts or corrupted writes.
What is the read cycle time specification for IDT7134SA45CB?
IDT7134SA45CB has a maximum read cycle time (tRC) of 45 ns, as confirmed in Table 09b of the Renesas datasheet. This value applies across commercial and military temperature ranges and defines the shortest interval between successive read operations on the same port.
7134SA45CB 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:
- 45ns
- Access Time:
- 45 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 48-SIDE BRAZED
7134SA45CB FAQ
1.How can I place an order for 7134SA45CB through Aetrix?
Please submit a Request for Quotation (RFQ) for 7134SA45CB 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 7134SA45CB reliable?
The price and inventory of 7134SA45CB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7134SA45CB is usually 5 days.
3.What payment methods are accepted for 7134SA45CB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7134SA45CB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7134SA45CB?
7134SA45CB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7134SA45CB 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 7134SA45CB?
For technical support, including 7134SA45CB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7134SA45CB requirements.
6.How does Aetrix verify that 7134SA45CB is sourced from the original manufacturer or authorized distributors?
All 7134SA45CB 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 7134SA45CB meets industry standards.
7.What is the process for return or replacement of 7134SA45CB?
All 7134SA45CB units undergo pre-shipment inspection (PSI). If there is an issue with 7134SA45CB, 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 7134SA45CB part is unused and in its original packaging.
Return procedure for 7134SA45CB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7134SA45CB Tags
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AT24C02C-XHM-T
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