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Renesas 7134SA55JG
- Part No.:
- 7134SA55JG
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 52-LCC (J-Lead)
- Datasheet:
-
7134SA55JG.pdf
- Description:
- IC SRAM 32KBIT PARALLEL 52PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:2,549
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Product details
Overview
IDT7134SA55JG from Renesas Electronics is a high-speed 4K × 8 dual-port static RAM with independent left/right asynchronous ports, 55 ns maximum read cycle time, TTL-compatible 5 V ±10% operation, and industrial-grade temperature range (–40°C to +85°C). It enables simultaneous CPU and DSP access in real-time digital signal processing systems without wait states.
For engineers reviewing the IDT7134SA55JG datasheet, IDT7134SA55JG pinout, IDT7134SA55JG application, or IDT7134SA55JG equivalent, key selection criteria include dual-port arbitration-free timing, 52-pin PLCC package compatibility, standby current of 25 mA (ISB1), and commercial/industrial speed-grade validation per MIL-PRF-38535 QML-compliant test flow.
Technical Context
The IDT7134SA55JG implements fully asynchronous dual-port architecture with separate address, control, and bidirectional I/O buses for left (L) and right (R) ports - 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.
It supports battery backup data retention only in LA variants; the SA variant prioritizes speed over ultra-low-power retention. Power management relies on CE-driven automatic power-down, delivering ISB1 = 25 mA (both ports standby) and ICC = 140 mA (both active, fMAX) under commercial conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 4K × 8 bits (32 Kbit total); supports independent 8-bit parallel access per port |
| Read Cycle Time (tRC) | 55 ns max - defines minimum interval between successive reads on same port |
| Supply Voltage | 5.0 V ±10% - single-rail TTL-compatible operation; no auxiliary supplies needed |
| Operating Temperature | –40°C to +85°C - validated industrial grade; not rated for military –55°C/+125°C |
| Standby Current (ISB1) | 25 mA max - both ports disabled with TTL-level CE inputs; critical for low-idle power budgeting |
| Package | 52-pin PLCC (PLG52) - surface-mount compatible with standard reflow profiles |
| Input Capacitance | 11 pF - limits trace length and fanout in high-speed bus design |
Pinout & Package
Package: 52-pin Plastic Leaded Chip Carrier (PLCC), body size ≈ 0.75 in × 0.75 in × 0.17 in, lead finish SnPb (obsolete per PDN# SP-17-02 except FP48/LC48/SB48).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52 | See pin mapping below | Pin numbering follows standard PLCC top-view orientation (pin 1 at index corner) |
| A0L–A11L | Left port address inputs | 12-bit address bus for left-side memory access (4K = 2¹²) |
| A0R–A11R | Right port address inputs | Independent 12-bit address bus; no shared address lines between ports |
| I/O0L–I/O7L | Left port bidirectional data | 8-bit parallel I/O; direction controlled by R/WL and OEL |
| I/O0R–I/O7R | Right port bidirectional data | Electrically isolated from left port I/O; no internal bus contention |
| CEL, CER | Chip enable (L/R) | Active-low enables respective port; drives ISB1/ISB2/ISB3/ISB4 current modes |
| OEL, OER | Output enable (L/R) | Active-low enables output drivers; high-Z when inactive |
| R/WL, R/WR | Read/write control (L/R) | Active-low write; high = read (output enabled only if OE also low) |
| VCC | Power supply | Single 5 V ±10% rail; all VCC pins must be connected |
| GND | Ground | All GND pins must be connected; decoupling required per high-speed layout practice |
| N/C | No connect | Pins 49, 50, 51, 52 - unused; must remain unconnected |
Key Features
| Feature | Design Value |
|---|---|
| Fully asynchronous dual-port operation | Enables independent, unsynchronized read/write access from two processors without arbitration logic or wait states |
| 55 ns maximum read cycle time | Supports 18.2 MHz sustained memory bandwidth per port in real-time DSP and video frame buffer applications |
| TTL-compatible 5 V ±10% interface | Direct connection to legacy microcontrollers, FPGAs, and ASICs without level-shifting circuitry |
| Automatic CE-controlled power-down | Reduces active port current to ISB2 = 75 mA and full standby to ISB3 = 1.0 mA (CMOS-level CE) |
| 52-pin PLCC packaging | Surface-mount form factor with proven thermal and mechanical reliability in industrial control and avionics modules |
Applications
| Digital Signal Processing System | Real-Time Video Frame Buffer |
|---|---|
|
Use Scenario: Simultaneous access by DSP core (write) and display controller (read) to shared image data. IC Role / Device Role / Timing Role: Dual-port SRAM acts as zero-wait-state shared memory buffer with independent L/R timing domains. Use Value: Eliminates pipeline stalls during pixel data transfer; tRC = 55 ns ensures 18.2 MHz pixel clock alignment with NTSC/PAL timing budgets. |
Use Scenario: Concurrent capture of incoming video frames and playback of previously stored frames. IC Role / Device Role / Timing Role: Left port receives digitized video stream; right port feeds HDMI encoder - no external arbitration needed. Use Value: Sustains 640×480@60 Hz (18.432 MB/s) with deterministic latency; ISB1 = 25 mA enables low-power idle between frames. |
| Industrial Motion Controller | Communications Protocol Bridge |
|
Use Scenario: Coordinated motion trajectory calculation (CPU) and real-time servo update (FPGA) sharing position/velocity tables. IC Role / Device Role / Timing Role: Provides deterministic, contention-managed memory access between heterogeneous controllers. Use Value: tAA = 55 ns guarantees sub-microsecond response to encoder interrupts; 4K × 8 capacity stores 512-axis profiles with margin. |
Use Scenario: Bridging CAN FD and Ethernet protocols where message translation requires temporary storage of packet headers and payloads. IC Role / Device Role / Timing Role: Left port buffers incoming CAN frames; right port formats Ethernet packets - synchronized via external semaphore logic. Use Value: Independent port timing avoids protocol collision; 52-pin PLCC fits compact gateway PCBs with EMI shielding requirements. |
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-55AXC | 55 ns tRC, 4K × 8, 3.3 V core (with 5 V I/O tolerance); lower ICC = 110 mA but requires level translation | Preferred for new 3.3 V system designs; incompatible with pure 5 V buses without translators | Select when migrating to lower-voltage platforms and redesigning power delivery; not drop-in for legacy 5 V systems |
| IDT7133SA55JG | Same 55 ns speed, 2K × 8 density (half capacity); identical PLCC-52 footprint and pinout | Suitable for cost-sensitive or space-constrained designs where 2K × 8 suffices | Drop-in replacement only if memory map fits 2K; verify address decoding and software initialization for reduced depth |
Compared with IDT7134SA55JG, CY7C1352V-55AXC reduces dynamic power but adds voltage translation complexity, while IDT7133SA55JG halves capacity with identical timing and layout - enabling incremental cost optimization without board revision.
Availability
IDT7134SA55JG is available at Aetrix Electronics and suitable for industrial motion control, real-time video buffering, and communications protocol bridging requiring stable component supply across extended product lifecycles.
Supply support for IDT7134SA55JG 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 infrastructure markets.
IDT7134SA55JG belongs to the legacy IDT dual-port SRAM family acquired by Renesas, engineered for high-reliability, arbitration-free memory sharing in deterministic real-time systems.
FAQ
What is the maximum operating temperature range for IDT7134SA55JG?
IDT7134SA55JG is specified for industrial temperature range: –40°C to +85°C. It is not rated for military –55°C to +125°C operation; that grade applies only to CB/FB/L48B suffix variants (e.g., IDT7134SA55CB). The 'JG' suffix explicitly denotes PLCC packaging and commercial/industrial qualification.
Does IDT7134SA55JG support battery backup data retention?
No. Battery backup data retention (VDR ≥ 2 V) is exclusive to LA variants like IDT7134LA55JG. The 'SA' in IDT7134SA55JG indicates Standard Power configuration, optimized for speed and active power efficiency - not low-voltage retention. Retention capability is not characterized or guaranteed for IDT7134SA55JG.
What is the pin 1 orientation for IDT7134SA55JG in PLCC package?
IDT7134SA55JG uses standard PLCC top-view orientation: pin 1 is located at the index corner (notch or dot), with pins numbered counterclockwise. Per Renesas datasheet drawing 2720 drw 03, pin 1 = A0L, pin 2 = A1L, ..., pin 26 = VCC, pin 27 = OEL, continuing to pin 52 = N/C. Always verify physical marking against this layout before PCB assembly.
Can IDT7134SA55JG be used in a system requiring MIL-PRF-38535 QML compliance?
IDT7134SA55JG itself is not QML-certified. QML compliance applies only to military-grade variants with CB, FB, or L48B suffixes (e.g., IDT7134SA55CB) manufactured per MIL-PRF-38535. The 'JG' suffix indicates commercial/industrial qualification - suitable for non-military industrial applications but not defense/aerospace programs requiring QML documentation and screening.
What are the DC input leakage limits for IDT7134SA55JG?
IDT7134SA55JG specifies |ILI| ≤ 10 µA (input leakage) and |ILO| ≤ 10 µA (output leakage) over full temperature and voltage range (VCC = 5.5 V, VIN = 0 V to VCC). These values ensure reliable CMOS-level signal integrity and minimal bus loading in multi-drop configurations typical of industrial control backplanes.
7134SA55JG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 52-LCC (J-Lead)
- Packaging:
- Tube
- Product Status:
- Active
- 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:
- 55ns
- Access Time:
- 55 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 52-PLCC (19.13x19.13)
7134SA55JG FAQ
1.How can I place an order for 7134SA55JG through Aetrix?
Please submit a Request for Quotation (RFQ) for 7134SA55JG 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 7134SA55JG reliable?
The price and inventory of 7134SA55JG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7134SA55JG is usually 5 days.
3.What payment methods are accepted for 7134SA55JG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7134SA55JG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7134SA55JG?
7134SA55JG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7134SA55JG 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 7134SA55JG?
For technical support, including 7134SA55JG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7134SA55JG requirements.
6.How does Aetrix verify that 7134SA55JG is sourced from the original manufacturer or authorized distributors?
All 7134SA55JG 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 7134SA55JG meets industry standards.
7.What is the process for return or replacement of 7134SA55JG?
All 7134SA55JG units undergo pre-shipment inspection (PSI). If there is an issue with 7134SA55JG, 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 7134SA55JG part is unused and in its original packaging.
Return procedure for 7134SA55JG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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