Equivalent & Substitute Parts for 7202LA12TPI

Part Overview

The 7202LA12TPI is an asynchronous FIFO (First-In-First-Out) memory circuit manufactured by Renesas Electronics Corporation. This 28-DIP through-hole component provides 1K x 9-bit storage capacity with bi-directional bus architecture, 50MHz data rate capability, and 12ns access time. The device operates across the industrial temperature range of -40°C to 85°C and requires a 4.5V to 5.5V supply voltage.

The 7202LA12TPI has reached obsolete product status. Locating equivalent substitute components is necessary to support legacy system maintenance, board-level repairs, and production continuity for applications where this specific FIFO architecture remains in service.

Key Parameters

Parameter	Value	Significance for Substitution
Memory Configuration	1K x 9	Defines storage capacity and data width; must match for direct substitution
Function Type	Asynchronous FIFO	Determines operational timing and control logic compatibility
Data Rate	50MHz	Establishes maximum throughput; substitute must meet or exceed this specification
Access Time	12ns	Critical for timing-sensitive applications; substitute must match or improve
Supply Voltage	4.5V ~ 5.5V	Must be compatible with existing power distribution; substitute must support this range
Bus Architecture	Bi-Directional	Determines signal flow capability; affects circuit integration requirements
Operating Temperature	-40°C ~ 85°C	Defines environmental operating limits; substitute must support application temperature range
Package Type	28-DIP (0.300", 7.62mm)	Physical form factor; affects PCB layout and socket compatibility

Substitute Part Grouping Explanation

Substitution eligibility for the 7202LA12TPI is determined by the following critical parameters:

Core Functional Parameters:

Memory capacity of 1K x 9 bits
Asynchronous FIFO operation
Data rate of 50MHz minimum
Access time of 12ns or faster
Supply voltage range 4.5V to 5.5V
Retransmit capability support

Environmental and Compliance Parameters:

Operating temperature range that encompasses the application requirement
RoHS compliance status for regulatory alignment
Moisture sensitivity level appropriate for storage and handling

Physical Integration Parameters:

Package form factor compatibility with PCB layout
Pin count and pinout alignment with circuit design
Mounting type (through-hole or surface-mount) based on board design

The 7202LA12JG qualifies as a substitute based on matching core functional specifications. However, differences in bus directionality, package type, and operating temperature range require engineering evaluation for specific applications.

Parameter Comparison

Parameter	7202LA12TPI (Main Part)	7202LA12JG (Substitute)	Compatibility Notes
Manufacturer	Renesas Electronics Corporation	Renesas Electronics Corporation	Same manufacturer ensures design consistency
Memory Size	1K x 9	9K (1K x 9)	Equivalent capacity; substitute notation differs
Function	Asynchronous	Asynchronous	Identical operational mode
Data Rate	50MHz	50MHz	Matched specification
Access Time	12ns	12ns	Matched specification
Supply Voltage	4.5V ~ 5.5V	4.5V ~ 5.5V	Identical voltage requirement
Current Supply (Max)	80mA	80mA	Matched power consumption
Bus Directional	Bi-Directional	Uni-Directional	Functional difference; requires circuit evaluation
Retransmit Capability	Yes	Yes	Matched feature support
Operating Temperature	-40°C ~ 85°C	0°C ~ 70°C	Substitute has narrower range; unsuitable for extended industrial temperature applications
Mounting Type	Through Hole	Surface Mount	Different PCB integration method; requires board redesign
Package / Case	28-DIP (0.300", 7.62mm)	32-LCC (J-Lead) / 32-PLCC	Different physical form factor and pin count
Product Status	Obsolete	Active	Substitute remains in active production
RoHS Status	Not specified	ROHS3 Compliant	Substitute meets current environmental regulations

Engineering Selection Recommendations

Product Status Consideration: The 7202LA12TPI is classified as obsolete. The 7202LA12JG maintains active product status with Renesas Electronics Corporation, ensuring continued availability, technical support, and compliance with current manufacturing standards.

Compliance and Certification: The 7202LA12JG carries ROHS3 compliance certification and REACH unaffected status, meeting modern regulatory requirements for electronic components. The main part lacks specified compliance documentation, which may present challenges for new designs or systems requiring regulatory certification.

Moisture Sensitivity: The 7202LA12JG specifies Moisture Sensitivity Level (MSL) 3 with 168-hour rating, providing defined handling and storage requirements suitable for industrial supply chain management.

Application-Specific Constraints: Direct substitution of the 7202LA12JG for the 7202LA12TPI requires evaluation of three critical factors:

Temperature Range: Applications requiring operation below 0°C or above 70°C cannot use the 7202LA12JG. The main part's -40°C to 85°C range is broader and necessary for extended industrial environments.
Bus Architecture: The main part provides bi-directional bus capability, while the substitute offers uni-directional operation. Circuit designs dependent on bi-directional data flow require architectural modification or alternative component selection.
Physical Integration: The main part uses 28-DIP through-hole packaging; the substitute uses 32-PLCC surface-mount packaging. PCB layout, socket compatibility, and assembly process differ significantly between these form factors.

Selection Path: For applications where temperature range, bus directionality, and through-hole mounting are non-negotiable, the 7202LA12JG is not suitable. For applications where these constraints can be accommodated, the 7202LA12JG provides an active, compliant alternative to the obsolete 7202LA12TPI.

Frequently Asked Questions (FAQ)

Q: Can the 7202LA12JG directly replace the 7202LA12TPI in an existing circuit board?

A: Direct socket replacement is not possible. The 7202LA12JG uses 32-PLCC surface-mount packaging with different pin count and layout compared to the 7202LA12TPI's 28-DIP through-hole package. PCB redesign and component placement modification are required.

Q: What is the significance of the bus directionality difference between these parts?

A: The 7202LA12TPI provides bi-directional bus architecture, allowing data flow in both directions. The 7202LA12JG provides uni-directional operation, restricting data flow to one direction. Circuits designed to exploit bi-directional capability cannot function with the uni-directional substitute without architectural modification.

Q: Is the 7202LA12JG suitable for applications operating at -40°C?

A: No. The 7202LA12JG specifies an operating temperature range of 0°C to 70°C. Applications requiring operation at -40°C must use components with extended low-temperature specifications. The main part 7202LA12TPI supports -40°C operation.

Q: What does ROHS3 compliance mean for the 7202LA12JG?

A: ROHS3 compliance indicates the component meets Restriction of Hazardous Substances Directive requirements, restricting lead, cadmium, mercury, and other hazardous materials. This certification is required for many commercial and industrial applications, particularly in regulated markets.

Q: Are the electrical specifications identical between these parts?

A: Core electrical specifications match: 50MHz data rate, 12ns access time, 4.5V to 5.5V supply voltage, and 80mA maximum supply current. The functional difference lies in bus directionality (bi-directional versus uni-directional) and operating temperature range.

Q: What is MSL 3 (168 Hours) for the 7202LA12JG?

A: Moisture Sensitivity Level 3 with 168-hour rating specifies that the component can be exposed to ambient conditions (typically 30°C, 85% relative humidity) for up to 168 hours before soldering. Extended exposure beyond this period requires baking to remove absorbed moisture before assembly.

Q: Why is the main part 7202LA12TPI classified as obsolete?

A: Obsolete status indicates Renesas Electronics Corporation has discontinued production and support for this component. Existing inventory may be available through authorized distributors, but long-term availability is not guaranteed. Active alternatives like the 7202LA12JG are recommended for new designs.

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