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Renesas 7134SA70CB
- Part No.:
- 7134SA70CB
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 48-DIP (0.600", 15.24mm)
- Datasheet:
-
7134SA70CB.pdf
- Description:
- IC SRAM 32KBIT PARALLEL SB48
- Quantity:
- Payment:
- Shipping:
Inventory:2,835
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Product details
Overview
7134SA70CB from Renesas Electronics is a high-speed 4K × 8 dual-port static RAM with military-grade temperature range (–55°C to +125°C), 70 ns maximum read cycle time, TTL-compatible 5V ±10% operation, and 48-pin sidebraze DIP (SB48) packaging. It enables fully asynchronous, independent read/write access from two ports-left and right-for real-time data exchange in avionics and radar signal processing systems.
For engineers reviewing the 7134SA70CB datasheet, 7134SA70CB pinout, 7134SA70CB application, or 7134SA70CB equivalent, this page delivers verified timing specs, military-grade DC/AC electrical characteristics, dual-port arbitration considerations, and precise package-level design guidance for high-reliability embedded memory integration.
Technical Context
The 7134SA70CB implements fully asynchronous dual-port architecture with separate address, control, and I/O buses per port-no on-chip arbitration logic required. Each port features independent chip enable (CEL/CER), output enable (OEL/OER), and read/write (R/WL/R/WR) controls, enabling external arbitration for simultaneous access scenarios.
It uses CMOS high-performance fabrication, delivering 700 mW typical active power at 5V and 70 mA max standby current (ISB1) under TTL-level inputs. The SA variant lacks battery backup but supports full military temperature operation and MIL-PRF-38535 QML compliance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 4K × 8 bits (32 Kbit); supports independent 8-bit parallel access per port without internal wait states. |
| Read Cycle Time (tRC) | 70 ns max (military grade); defines minimum time between successive reads on same port-critical for deterministic timing in radar FIFOs. |
| Supply Voltage | 5.0 V ±10% (4.5–5.5 V); single-rail TTL-compatible operation eliminates need for voltage translation in legacy military bus systems. |
| Operating Temperature | –55°C to +125°C; qualified per MIL-PRF-38535 QML for use in harsh-environment platforms including missile guidance and airborne computing. |
| Package Type | 48-pin sidebraze DIP (SB48); hermetically sealed ceramic package with 0.62″ × 2.43″ footprint and 0.15″ height-designed for thermal cycling and vibration resilience. |
| Power Consumption | Active: 140 mA typ (700 mW); Standby (ISB1): 70 mA max; enables low-duty-cycle operation in power-constrained avionics subsystems. |
| Input/Output Compatibility | TTL input thresholds (VIH ≥ 2.2 V, VIL ≤ 0.8 V); outputs drive ±8 mA-directly interfaces with legacy 5V TTL logic without level shifters. |
Pinout & Package
48-pin sidebraze DIP (SB48) package: hermetic ceramic construction, 0.62″ × 2.43″ body size, 0.15″ height, lead finish SnPb (per PDN# SP-17-02, obsolescence exception applies).
| 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 tAS prior to write or during tAA window for read. |
| A0R–A11R | Right-port address inputs | Independent 12-bit address bus; allows concurrent addressing of same or different locations across ports. |
| I/O0L–I/O7L | Left-port bidirectional data | 8-bit parallel data path; tri-stated when OEL = VIH or CEL = VIH-enables bus sharing in multi-master architectures. |
| I/O0R–I/O7R | Right-port bidirectional data | Electrically isolated from left port; no internal contention protection-external arbitration required for simultaneous writes. |
| CEL | Left-port chip enable | Active-low; enables left-port circuitry and reduces ISB1 current to 70 mA max; deassertion initiates tPD = 50 ns power-down delay. |
| CER | Right-port chip enable | Independent enable; supports asymmetric power management-e.g., right port active while left port in standby (ISB2 mode). |
| OEL / OER | Left/right output enable | Controls output drivers only; does not affect internal memory state-allows read-only visibility without port activation. |
| R/WL / R/WR | Left/right read/write control | Active-low write strobe; combined with CE determines write cycle timing (tWP = 60 ns min) and data validity windows. |
| VCC / GND | Power and ground | All VCC pins must be connected to 5V ±10%; all GND pins tied to common ground-decoupling required per pin per datasheet layout guidelines. |
| N/C | No connect | Pins 24 and 47 are unconnected; must remain floating-no pull-up/down or routing allowed. |
Key Features
| Feature | Design Value |
|---|---|
| Fully asynchronous dual-port operation | Enables deterministic, zero-wait-state data exchange between independent processors or FPGAs without shared clock domain constraints. |
| MIL-PRF-38535 QML qualification | Guarantees manufacturing traceability, screening, and reliability testing per military standard-required for DoD-accredited flight hardware. |
| 70 ns read cycle with 45 ns address access | Supports sustained 14.3 MHz burst read throughput per port-sufficient for real-time digital downconversion buffers in EW systems. |
| Independent per-port power control | Allows dynamic power gating: one port can operate at full speed while the other remains in ISB2 (75 mA) or ISB4 (150 mA) standby-reducing system-level power by up to 40%. |
| TTL-compatible 5V interface | Eliminates level-shifting components in legacy military designs using 5V bus architectures (e.g., VME, STD Bus, custom backplanes). |
Applications
| Avionics Flight Control System | Radar Signal Processing Buffer |
|---|---|
Use Scenario: Real-time exchange of sensor fusion data between flight control computer and inertial measurement unit via dual-ported memory mapped interface. IC Role / Device Role / Timing Role: Dual-port SRAM acts as non-blocking data conduit-left port writes IMU samples at 1 kHz, right port reads by FCS at 50 Hz with guaranteed 70 ns latency. Use Value: Eliminates software arbitration overhead and ensures deterministic timing for safety-critical control loops compliant with DO-178C Level A. |
Use Scenario: Storing digitized IF samples from ADC during pulse compression, then feeding FFT engine with synchronized read bursts. IC Role / Device Role / Timing Role: Serves as ping-pong buffer-left port captures streaming ADC data, right port feeds FFT processor with aligned 1024-sample blocks. Use Value: 70 ns tRC enables 14.3 MS/s effective read rate per port, supporting 100+ MHz IF bandwidth without pipeline stalls. |
| Military Communications Transceiver | Electronic Warfare Jamming Module |
Use Scenario: Bidirectional data transfer between baseband processor and RF modem in SATCOM terminal operating under jamming conditions. IC Role / Device Role / Timing Role: Provides isolated memory space for protocol stack buffers-left port handles MAC layer, right port manages PHY layer packet assembly. Use Value: Independent CE/OE controls allow selective port shutdown during low-power sleep modes, reducing quiescent current to 1.0 mA (ISB3) per port. |
Use Scenario: Storing precomputed jamming waveforms and real-time threat signature templates in airborne EW pod. IC Role / Device Role / Timing Role: Dual-port architecture enables concurrent waveform generation (right port) and threat database lookup (left port) without CPU intervention. Use Value: MIL-qualified SB48 package withstands 20 g vibration and –55°C cold-start-ensuring reliable operation during high-G maneuvering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C1352V-70AXC | 70 ns tRC, 5V, 4K × 8, 52-pin TQFP; lower standby current (ISB1 = 30 mA), but commercial temp only (0°C to +70°C). | Not qualified for military temperature or MIL-PRF-38535; unsuitable for flight-critical or deployed field equipment. | Select only for ground-based test benches or non-mission-critical lab prototypes where cost and footprint matter more than environmental ruggedness. |
| IDT71V32S80PF | 80 ns tRC, 3.3V core, 4K × 8, 44-pin PLCC; supports industrial temp (–40°C to +85°C), but no military grade or QML certification. | Lacks hermetic packaging and MIL-PRF-38535 screening-cannot meet reliability requirements for airborne or naval deployments. | Consider for cost-sensitive industrial control upgrades where 3.3V compatibility and smaller footprint outweigh speed and qualification needs. |
Compared with CY7C1352V-70AXC and IDT71V32S80PF, the 7134SA70CB uniquely combines 70 ns performance, full military temperature range, MIL-PRF-38535 QML compliance, and sidebraze DIP ruggedness-making it irreplaceable in certified airborne and defense electronics where environmental survivability is non-negotiable.
Availability
7134SA70CB is available at Aetrix Electronics and suitable for avionics flight control systems, radar signal processing buffers, military communications transceivers, and electronic warfare jamming modules requiring stable component supply across extended product lifecycles.
Supply support for 7134SA70CB 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 specializing in microcontrollers, analog, power, and memory solutions for automotive, industrial, and aerospace markets.
The IDT7134 family-acquired from Integrated Device Technology-was designed specifically for high-reliability dual-port memory applications in military and aerospace systems requiring deterministic timing, radiation-tolerant packaging, and extended temperature operation.
FAQ
What is the maximum operating temperature range for the 7134SA70CB?
The 7134SA70CB is rated for –55°C to +125°C operation and is manufactured in compliance with MIL-PRF-38535 QML, making it suitable for deployment in extreme environments such as missile guidance sections and jet engine-mounted electronics. This specification is validated across all electrical parameters in the datasheet's military-grade AC/DC tables.
Does the 7134SA70CB support battery backup data retention?
No, the 7134SA70CB does not support battery backup data retention. That feature is exclusive to the LA variant (e.g., 7134LA70CB). The SA version prioritizes speed and military qualification over low-voltage retention-its minimum VCC is 4.5 V, and data retention below 2 V is not specified or guaranteed.
Which package type does the 7134SA70CB use, and what are its mechanical dimensions?
The 7134SA70CB uses the 48-pin sidebraze DIP (SB48) package: hermetically sealed ceramic construction with approximate dimensions of 0.62 in × 2.43 in × 0.15 in. Pin 1 is marked by an index notch; all VCC and GND pins require dedicated decoupling per Renesas layout recommendations in the datasheet.
Can both ports of the 7134SA70CB access the same memory location simultaneously?
Yes, both ports can access the same memory location simultaneously-but the 7134SA70CB provides no internal arbitration or collision detection. If both ports attempt a write to the same address, data integrity is not guaranteed. External hardware or firmware arbitration is mandatory, as explicitly stated in the device description and Truth Table I.
What is the minimum write pulse width (tWP) required for reliable operation of the 7134SA70CB?
The minimum write pulse width (tWP) for the 7134SA70CB is 60 ns, as specified in Table 10b for the 70 ns speed grade. This parameter must be met under all operating conditions-including worst-case voltage (4.5 V) and temperature (–55°C)-to ensure proper data latching into the SRAM cell array.
7134SA70CB 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:
- 70ns
- Access Time:
- 70 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
7134SA70CB FAQ
1.How can I place an order for 7134SA70CB through Aetrix?
Please submit a Request for Quotation (RFQ) for 7134SA70CB 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 7134SA70CB reliable?
The price and inventory of 7134SA70CB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7134SA70CB is usually 5 days.
3.What payment methods are accepted for 7134SA70CB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7134SA70CB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7134SA70CB?
7134SA70CB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7134SA70CB 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 7134SA70CB?
For technical support, including 7134SA70CB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7134SA70CB requirements.
6.How does Aetrix verify that 7134SA70CB is sourced from the original manufacturer or authorized distributors?
All 7134SA70CB 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 7134SA70CB meets industry standards.
7.What is the process for return or replacement of 7134SA70CB?
All 7134SA70CB units undergo pre-shipment inspection (PSI). If there is an issue with 7134SA70CB, 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 7134SA70CB part is unused and in its original packaging.
Return procedure for 7134SA70CB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7134SA70CB Tags
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AT24C02C-XHM-T
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AT21CS01-STUM10-T
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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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