UPD78F0501AMC(A)-CAB-X2-AX Equivalent & Substitute Parts

Part Overview

The UPD78F0501AMC(A)-CAB-X2-AX is an 8-bit microcontroller from Renesas Electronics Corporation belonging to the 78K0/Kx2 series. This device integrates a 78K/0 core processor operating at 20MHz with 16KB of FLASH program memory, 768 bytes of RAM, and 23 I/O pins. The microcontroller supports multiple communication interfaces including 3-Wire SIO, I2C, LINbus, and UART/USART, along with integrated peripherals such as low-voltage detection (LVD), power-on reset (POR), pulse-width modulation (PWM), and watchdog timer (WDT). The device is housed in a 30-LSSOP surface-mount package and operates across a supply voltage range of 1.8V to 5.5V with an operating temperature range of -40°C to 85°C.

The UPD78F0501AMC(A)-CAB-X2-AX carries an obsolete product status. Identification of equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for applications currently utilizing this microcontroller.

Substiute Parts

UPD78F0501AMC(A)-CAB-X2-AX

Renesas Electronics CorporationIn Stock: 1041UPD78F0501AMC(A)-CAB-X2-AX Datasheet

Current PartRFQ

UPD78F0501AMCA-CAB-G

Renesas Electronics CorporationIn Stock: 1011UPD78F0501AMCA-CAB-G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the UPD78F0501AMC(A)-CAB-X2-AX is determined by strict equivalence across all electrical and mechanical parameters. The substitute part must maintain identical specifications in the following critical areas:

Core Architecture & Performance: The 78K/0 core processor, 8-bit architecture, and 20MHz operating speed define the computational capability and instruction set compatibility of the microcontroller.

Memory Configuration: The 16KB FLASH program memory and 768 bytes of RAM must be preserved to ensure firmware compatibility and application functionality without modification.

I/O and Connectivity: The 23 I/O pins and integrated communication interfaces (3-Wire SIO, I2C, LINbus, UART/USART) establish the external connectivity requirements for the application.

Electrical Specifications: The 1.8V to 5.5V supply voltage range and -40°C to 85°C operating temperature range define the environmental operating envelope.

Package Compatibility: The 30-LSSOP surface-mount package with 0.240" (6.10mm) width ensures mechanical and thermal compatibility with existing printed circuit board designs.

Peripheral Integration: The LVD, POR, PWM, and WDT peripherals, along with the 4-channel 10-bit SAR analog-to-digital converter, must be present to maintain functional equivalence.

Substitution is valid only when all parameters listed above are identical between the main part and the candidate substitute.

Parameter Comparison

Engineering Selection Recommendations

The UPD78F0501AMCA-CAB-G is the direct substitute for the UPD78F0501AMC(A)-CAB-X2-AX. Both devices are manufactured by Renesas Electronics Corporation and maintain complete electrical and mechanical equivalence across all specified parameters.

The primary distinction between these parts is product status. The original part carries an obsolete designation, while the substitute part maintains active product status. This status difference reflects current manufacturing availability and long-term supply chain support.

Both parts carry REACH Unaffected compliance status, indicating equivalent regulatory standing for environmental and hazardous substance restrictions.

The electrical specifications, memory configuration, I/O count, package type, and peripheral integration are identical between the two parts. Pin-for-pin compatibility and functional equivalence are established.

For applications currently utilizing the UPD78F0501AMC(A)-CAB-X2-AX, transition to the UPD78F0501AMCA-CAB-G provides continued access to an electrically and mechanically equivalent microcontroller with active manufacturing support.

Frequently Asked Questions (FAQ)

Q: Are the UPD78F0501AMC(A)-CAB-X2-AX and UPD78F0501AMCA-CAB-G pin-for-pin compatible?

A: Yes. Both devices are housed in the 30-LSSOP package with identical pin assignments, I/O configuration, and electrical characteristics. Direct substitution on the printed circuit board is supported without design modification.

Q: What is the difference between these two part numbers?

A: The primary difference is product status. The UPD78F0501AMC(A)-CAB-X2-AX is obsolete, while the UPD78F0501AMCA-CAB-G maintains active status. All electrical specifications, memory sizes, operating parameters, and peripheral functions are identical.

Q: Can firmware developed for the UPD78F0501AMC(A)-CAB-X2-AX run on the UPD78F0501AMCA-CAB-G without modification?

A: Yes. Both devices implement the identical 78K/0 core processor architecture, instruction set, and memory configuration. Firmware compatibility is established without code changes.

Q: Are both parts compliant with REACH regulations?

A: Yes. Both the UPD78F0501AMC(A)-CAB-X2-AX and UPD78F0501AMCA-CAB-G carry REACH Unaffected status, indicating equivalent compliance with environmental and hazardous substance restrictions.

Q: What is the operating temperature range for both devices?

A: Both devices operate across the temperature range of -40°C to 85°C (TA), supporting industrial and extended commercial applications.

Q: Do both parts support the same communication interfaces?

A: Yes. Both devices integrate 3-Wire SIO, I2C, LINbus, and UART/USART communication interfaces with identical functional specifications.

Q: Is the supply voltage range identical for both parts?

A: Yes. Both devices operate across a supply voltage range of 1.8V to 5.5V, supporting low-power and standard voltage applications.

Q: What is the program memory capacity of both devices?

A: Both devices provide 16KB (16K x 8) of FLASH program memory and 768 bytes of RAM, with identical memory organization and access characteristics.