Renesas Electronics 7130SA100CB SRAM Equivalent & Substitute Parts

Part Overview

The Renesas Electronics 7130SA100CB is an 8Kbit dual-port asynchronous SRAM with parallel interface, organized as 1K x 8, featuring 100 ns access time and 48-DIP through-hole packaging. This component is classified as obsolete, making substitute parts necessary for new designs and ongoing system support. The part operates across industrial temperature ranges (-55°C to 125°C) and requires 4.5V to 5.5V supply voltage.

Substiute Parts

7130SA100CB

Renesas Electronics CorporationIn Stock: 7387130SA100CB Datasheet

Current PartRFQ

7130LA20JG

Renesas Electronics CorporationIn Stock: 9327130LA20JG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 7130SA100CB is determined by the following critical parameters:

Functional Equivalence Requirements:

• Memory type: Volatile SRAM
• Memory format: Dual port, asynchronous
• Memory size: 8Kbit
• Memory organization: 1K x 8
• Memory interface: Parallel
• Supply voltage range: 4.5V ~ 5.5V

Performance Compatibility:

• Access time must be equal to or faster than 100 ns
• Write cycle time must be equal to or faster than 100 ns

Environmental Compatibility:

• Operating temperature range must encompass or exceed -55°C ~ 125°C, or be suitable for the intended application environment

Mechanical Compatibility:

• Package type and pin configuration must support the target application (through-hole or surface-mount conversion)

The 7130LA20JG qualifies as a functional substitute based on matching memory capacity, organization, interface type, and supply voltage specifications. Performance improvements (20 ns access time versus 100 ns) provide enhanced speed capability. Package and mounting differences require mechanical evaluation for specific applications.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The 7130SA100CB is obsolete. The 7130LA20JG is active and currently manufactured, ensuring long-term availability and supply chain continuity.

Compliance Status: The 7130LA20JG is ROHS3 compliant, whereas the 7130SA100CB is RoHS non-compliant. For applications subject to RoHS regulations, the 7130LA20JG is the appropriate selection.

Performance Characteristics: The 7130LA20JG provides superior access and write cycle times (20 ns versus 100 ns), enabling faster memory operations. This performance improvement is backward-compatible with designs requiring the original 100 ns specification.

Environmental Operating Range: The 7130SA100CB operates across -55°C to 125°C. The 7130LA20JG operates across 0°C to 70°C. Applications requiring the full industrial temperature range of the original part must evaluate whether the substitute's operating range is suitable for the intended environment.

Packaging and Mounting: The 7130SA100CB uses through-hole 48-DIP packaging. The 7130LA20JG uses surface-mount 52-LCC (J-Lead) packaging. PCB redesign and assembly process modifications are required for mechanical integration.

Moisture Sensitivity: The 7130LA20JG has MSL 3 (168 hours), requiring controlled storage and handling. The 7130SA100CB has MSL 1 (unlimited), requiring no special moisture control.

Frequently Asked Questions (FAQ)

Q: Can the 7130LA20JG directly replace the 7130SA100CB without circuit modification?

A: Functional substitution is possible based on matching memory capacity, organization, interface, and supply voltage. However, mechanical substitution requires PCB redesign due to different package types (48-DIP through-hole versus 52-LCC surface-mount) and different pin counts (48 pins versus 52 pins).

Q: What are the key parameters that determine substitution eligibility?

A: Substitution eligibility is determined by: memory type (SRAM), memory format (dual port, asynchronous), memory size (8Kbit), memory organization (1K x 8), memory interface (parallel), and supply voltage range (4.5V ~ 5.5V). Access time and write cycle time must be equal to or faster than the original specification.

Q: Does the faster access time of the 7130LA20JG (20 ns versus 100 ns) create compatibility issues?

A: No. Faster access time is backward-compatible. Designs specified for 100 ns operation will function correctly with 20 ns memory, as the memory will respond faster than required.

Q: Are there temperature range limitations when substituting the 7130LA20JG?

A: Yes. The 7130LA20JG operates from 0°C to 70°C, whereas the 7130SA100CB operates from -55°C to 125°C. Applications requiring operation below 0°C or above 70°C cannot use the 7130LA20JG as a substitute.

Q: What compliance differences exist between these parts?

A: The 7130SA100CB is RoHS non-compliant. The 7130LA20JG is ROHS3 compliant. For applications subject to RoHS regulations or customer requirements, the 7130LA20JG is the appropriate selection.

Q: Does the 7130LA20JG require special handling due to moisture sensitivity?

A: Yes. The 7130LA20JG has MSL 3 (168 hours), requiring controlled storage conditions and limited exposure to ambient humidity. The 7130SA100CB has MSL 1 (unlimited), requiring no special moisture control.

Q: What is the pin count difference between these packages?

A: The 7130SA100CB uses 48-DIP packaging with 48 pins. The 7130LA20JG uses 52-LCC packaging with 52 pins. Pin mapping and PCB layout must be evaluated for each application.