70T653MS12BC Equivalent & Substitute Parts

Part Overview

The 70T653MS12BC is an 18Mbit dual-port asynchronous SRAM manufactured by Renesas Electronics Corporation. This parallel memory IC operates at 2.4V to 2.6V supply voltage with 12 ns access and write cycle times, organized as 512K x 36 bits in a 256-CABGA (17x17) surface mount package. The part is currently active in production and maintains inventory availability. Substitute parts are identified when electrical specifications, memory organization, package compatibility, and operational parameters align with the original component requirements.

Key Parameters

Parameter	Value
Memory Type	Volatile SRAM
Memory Format	Dual Port, Asynchronous
Memory Size	18Mbit
Memory Organization	512K x 36
Memory Interface	Parallel
Access Time	12 ns
Write Cycle Time	12 ns
Supply Voltage	2.4V ~ 2.6V
Package Type	256-CABGA (17x17)
Mounting Type	Surface Mount
Moisture Sensitivity Level	MSL 3 (168 Hours)

Substitute Part Grouping Explanation

Substitution eligibility for the 70T653MS12BC is determined by strict alignment of the following parameters:

Memory capacity and organization (18Mbit, 512K x 36 configuration)
Dual-port asynchronous SRAM technology
Parallel interface architecture
Access and write cycle timing (12 ns)
Supply voltage range (2.4V ~ 2.6V)
Package specification (256-CABGA, 17x17 footprint)
Surface mount compatibility
Moisture sensitivity classification (MSL 3)

The 70T653MS12BCI meets all substitution criteria as a manufacturer-recommended equivalent. Differences in operating temperature range do not affect substitution eligibility when the substitute part encompasses the original part's temperature specification.

Parameter Comparison

Parameter	70T653MS12BC	70T653MS12BCI
Manufacturer	Renesas Electronics Corporation	Renesas Electronics Corporation
Memory Type	Volatile SRAM	Volatile SRAM
Memory Format	Dual Port, Asynchronous	Dual Port, Asynchronous
Memory Size	18Mbit	18Mbit
Memory Organization	512K x 36	512K x 36
Memory Interface	Parallel	Parallel
Access Time	12 ns	12 ns
Write Cycle Time	12 ns	12 ns
Supply Voltage	2.4V ~ 2.6V	2.4V ~ 2.6V
Operating Temperature	0°C ~ 70°C	-40°C ~ 85°C
Package Type	256-CABGA (17x17)	256-CABGA (17x17)
Mounting Type	Surface Mount	Surface Mount
Moisture Sensitivity Level	MSL 3 (168 Hours)	MSL 3 (168 Hours)
Product Status	Active	Active
RoHS Status	RoHS non-compliant	RoHS non-compliant
REACH Status	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

Both the 70T653MS12BC and 70T653MS12BCI are active production parts from Renesas Electronics Corporation with identical electrical and mechanical specifications. The 70T653MS12BCI provides an extended operating temperature range of -40°C to 85°C compared to the original part's 0°C to 70°C specification. Selection between these parts depends on application temperature requirements. Both parts maintain RoHS non-compliant and REACH Unaffected status. Inventory availability should be evaluated based on project timeline and procurement requirements.

Frequently Asked Questions (FAQ)

Q: Can the 70T653MS12BCI replace the 70T653MS12BC in all applications?

A: The 70T653MS12BCI is electrically and mechanically equivalent to the 70T653MS12BC. The substitute part operates across a wider temperature range (-40°C to 85°C versus 0°C to 70°C). Substitution is valid when the application's temperature requirements fall within the substitute part's operating range.

Q: Are the package footprints identical between these parts?

A: Yes. Both parts use the 256-CABGA (17x17) surface mount package with identical pin configurations and mechanical dimensions.

Q: What memory organization does this part support?

A: Both the 70T653MS12BC and 70T653MS12BCI are organized as 512K x 36 bits, providing 18Mbit total capacity in a dual-port asynchronous SRAM configuration.

Q: Are there differences in supply voltage requirements?

A: No. Both parts operate at identical supply voltage specifications of 2.4V to 2.6V.

Q: What is the significance of the MSL 3 moisture sensitivity rating?

A: MSL 3 indicates a moisture sensitivity level requiring storage at controlled humidity conditions for a maximum of 168 hours before soldering. Both parts share this classification and require identical handling procedures.

Q: Do these parts have different compliance certifications?

A: Both parts maintain identical RoHS non-compliant and REACH Unaffected status. No compliance differences exist between the two parts.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message