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Renesas 7134SA55JG8
- Part No.:
- 7134SA55JG8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 52-LCC (J-Lead)
- Datasheet:
-
7134SA55JG8.pdf
- Description:
- IC SRAM 32KBIT PARALLEL 52PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:2,730
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Product details
Overview
IDT7134SA55JG8 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-temperature support (–40°C to +85°C). It enables concurrent memory access in real-time arbitration-free systems such as video frame buffers and military avionics data routing.
For engineers reviewing the IDT7134SA55JG8 datasheet, IDT7134SA55JG8 pinout, IDT7134SA55JG8 application, or IDT7134SA55JG8 equivalent, key selection criteria include dual-port contention management, 52-pin PLCC package compatibility, 55 ns timing compliance, and low-power standby current (≤70 mA at TTL-level CE high).
Technical Context
The IDT7134SA55JG8 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 schemes.
It uses CMOS process technology to achieve 700 mW typical active power and supports battery backup data retention only in LA variants-not applicable to this SA-grade part. The device operates across commercial and industrial temperature ranges with 4.5 V to 5.5 V supply tolerance and 11 pF input/output capacitance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 4K × 8 bits = 32 Kbit; supports two independent 8-bit data paths without internal bus contention. |
| Read Cycle Time (tRC) | 55 ns max; defines minimum interval between successive reads on same port-critical for video line buffering timing. |
| Supply Voltage | 4.5 V to 5.5 V; single 5 V ±10% rail eliminates need for auxiliary voltage regulation in legacy 5 V systems. |
| Operating Temperature | –40°C to +85°C; qualified for industrial environments including factory automation controllers and transportation ECUs. |
| Active Current (ICC) | 140 mA typ. (both ports active); determines thermal load in dense memory subsystems with multiple dual-port SRAMs. |
| Standby Current (ISB1) | 25 mA max (TTL-level CE high); enables power gating of unused ports while retaining full memory state. |
| Input/Output Capacitance | 11 pF; constrains trace length and fanout in high-speed PCB layouts to maintain signal integrity at 55 ns timing. |
Pinout & Package
Package: 52-pin PLCC (PLG52), body size 0.75 in × 0.75 in × 0.17 in, surface-mount compatible with standard reflow profiles.
| 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 (20 ns min for faster variants, 55 ns max here). |
| A0R–A11R | Right-port address inputs | Independent 12-bit address bus; allows simultaneous addressing of different memory locations on each port. |
| I/O0L–I/O7L | Left-port bidirectional data | 8-bit data path; tri-stated when OEL high or CEL high-enables shared bus topology with external transceivers. |
| I/O0R–I/O7R | Right-port bidirectional data | Electrically isolated from left port; no internal coupling-prevents cross-port signal injection during contention. |
| CEL / CER | Chip enable (left/right) | Active-low enables respective port; drives ISB1/ISB2 standby modes when high-key for dynamic power management. |
| OEL / OER | Output enable (left/right) | Active-low enables output drivers; decouples read enable from chip select-supports pipelined read sequences. |
| R/WL / R/WR | Read/write control (left/right) | Active-low write command; combined with CE defines write window (tWP ≥ 50 ns)-must satisfy tDH ≥ 3 ns hold time. |
| VCC / GND | Power and ground | Multiple VCC/GND pins distributed across package to minimize IR drop and switching noise in high-current bursts. |
Key Features
| Feature | Design Value |
|---|---|
| Fully asynchronous dual-port operation | Enables independent, unsynchronized read/write access from two system masters-eliminates wait states in real-time DSP pipelines. |
| TTL-compatible interface | Direct connection to legacy 5 V microcontrollers and FPGAs without level-shifting-reduces BOM count and layout complexity. |
| Automatic power-down via CE | Reduces standby current to ≤25 mA per enabled port-critical for thermally constrained industrial enclosures with limited airflow. |
| Industrial temperature range | Validated operation from –40°C to +85°C-ensures reliability in uncontrolled environments like railway signaling cabinets and outdoor base stations. |
| 52-pin PLCC packaging | Surface-mount footprint with gull-wing leads-supports automated assembly and provides mechanical robustness against vibration in mobile platforms. |
Applications
| Video Frame Buffering | Real-Time Digital Signal Processing |
|---|---|
|
Use Scenario: Storing and synchronizing video field data between capture and display engines in broadcast equipment. IC Role / Device Role / Timing Role: Dual-port SRAM acts as ping-pong buffer-left port writes incoming frames while right port reads out rendered frames. Use Value: 55 ns tRC enables pixel-rate throughput up to ~18 Mbps per port, supporting SD/HD video without frame drops. |
Use Scenario: Shared memory between a DSP core and an FPGA-based co-processor in radar beamforming systems. IC Role / Device Role / Timing Role: Provides zero-wait-state memory access for both processors-eliminating pipeline stalls during coefficient table lookups. Use Value: Independent address/control buses prevent arbitration logic overhead, reducing latency by >30% versus single-port alternatives. |
| Military Avionics Data Routing | Industrial PLC Memory Expansion |
|
Use Scenario: Interfacing mission computers with sensor fusion modules in UAV flight control units. IC Role / Device Role / Timing Role: Serves as deterministic latency buffer between MIL-STD-1553B interface and ARINC-429 processing engine. Use Value: Industrial-grade temp range and QML-compliant manufacturing ensure operation under shock/vibration and extended thermal cycling. |
Use Scenario: Extending local memory capacity in programmable logic controllers handling multi-axis motion control tasks. IC Role / Device Role / Timing Role: Offloads main CPU by hosting I/O mapping tables and real-time status registers accessible by ladder logic scan cycles. Use Value: 700 mW typical active power fits within PLC thermal budget; 52-pin PLCC simplifies replacement in field-serviceable modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C1355KV18-55BGXI | 18-bit bus width, 55 ns tRC, 1.8 V core / 3.3 V I/O; LVCMOS interface, not TTL-compatible. | Requires level shifters for 5 V systems; suited for new designs targeting lower power and higher density. | Select when migrating to modern low-voltage architectures; avoid for drop-in replacement in legacy 5 V boards. |
| AS7C34098B-55JCIN | 4K × 8, 55 ns, 5 V operation, but only single-port with external arbitration logic required. | Lacks native dual-port capability-adds gate delay and board area for external bus controllers. | Consider only if cost sensitivity outweighs timing determinism; requires redesign of memory controller logic. |
Compared with CY7C1355KV18-55BGXI and AS7C34098B-55JCIN, the IDT7134SA55JG8 delivers native 5 V TTL dual-port functionality in a mature, industrial-qualified PLCC package-making it optimal for maintaining legacy system performance without architectural changes.
Availability
IDT7134SA55JG8 is available at Aetrix Electronics and suitable for video frame buffering, real-time DSP, military avionics data routing, and industrial PLC memory expansion requiring stable component supply across long production lifecycles.
Supply support for IDT7134SA55JG8 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.
IDT7134SA55JG8 belongs to Renesas' legacy dual-port SRAM product line, engineered for deterministic, arbitration-free memory sharing in hard real-time systems where latency predictability is non-negotiable.
FAQ
What is the maximum operating temperature range for the IDT7134SA55JG8?
The IDT7134SA55JG8 is rated for industrial temperature operation from –40°C to +85°C. This specification is validated per the datasheet's Recommended Operating Conditions table and applies specifically to the SA-grade 55 ns speed bin in PLCC packaging. It does not support military-grade –55°C to +125°C operation-those variants use different orderable part numbers like IDT7134SA55CB.
Does the IDT7134SA55JG8 support battery backup data retention?
No, the IDT7134SA55JG8 does not support battery backup data retention. That feature is exclusive to LA-grade variants (e.g., IDT7134LA55JG8), which specify VDR ≥ 2.0 V and ICCDR ≤ 4000 µA under data retention conditions. The SA suffix denotes standard power consumption and excludes the low-voltage retention circuitry.
Which package type is used by the IDT7134SA55JG8?
The IDT7134SA55JG8 uses a 52-pin PLCC (PLG52) package with dimensions 0.75 in × 0.75 in × 0.17 in. This is confirmed in the Ordering Information table on page 12 of the Renesas datasheet, where "JG" and "JG8" suffixes explicitly denote PLCC packaging for commercial and industrial temperature grades.
Can the IDT7134SA55JG8 be used in systems requiring MIL-PRF-38535 QML compliance?
No, the IDT7134SA55JG8 is not QML-certified. MIL-PRF-38535 qualification applies only to military-grade variants packaged in SB48 (sidebraze DIP) or FP48 (flatpack), such as IDT7134SA55CB. The JG8 suffix indicates commercial/industrial PLCC packaging, which falls outside QML screening and testing requirements.
What is the pin 1 orientation for the IDT7134SA55JG8 PLCC package?
Per Renesas datasheet revision May 10, 2021, page 3, the IDT7134SA55JG8 PLCC (PLG52) uses standard PLCC pin 1 indexing: pin 1 is located at the corner adjacent to the index notch on the top surface, with pins numbered counter-clockwise. This matches JEDEC MO-047AB standards and is verified in drawing 2720 drw 03.
7134SA55JG8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 52-LCC (J-Lead)
- Packaging:
- Tape & Reel (TR)
- 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)
7134SA55JG8 FAQ
1.How can I place an order for 7134SA55JG8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 7134SA55JG8 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 7134SA55JG8 reliable?
The price and inventory of 7134SA55JG8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7134SA55JG8 is usually 5 days.
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7134SA55JG8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7134SA55JG8 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 7134SA55JG8?
For technical support, including 7134SA55JG8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7134SA55JG8 requirements.
6.How does Aetrix verify that 7134SA55JG8 is sourced from the original manufacturer or authorized distributors?
All 7134SA55JG8 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 7134SA55JG8 meets industry standards.
7.What is the process for return or replacement of 7134SA55JG8?
All 7134SA55JG8 units undergo pre-shipment inspection (PSI). If there is an issue with 7134SA55JG8, 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 7134SA55JG8 part is unused and in its original packaging.
Return procedure for 7134SA55JG8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7134SA55JG8 Tags
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