Description

The A4054AE5R is a microcomputer chip designed to increase program productivity with large-capacity memory. It belongs to the HMCS400-series microcomputers family and features three timers, one serial interface, a comparator, and an input capture circuit.

Specifications and features

The A4054AE5R microcomputer has the following specifications and features:

• I/O pins: 10 large-current output pins
• Output pins: Six 15-mA sinks and four 10-mA sources
• 27 I/O pins and 8 dedicated input pins
• Three timer/counters
• Eight-bit input capture circuit
• Two timer outputs, including two PWM outputs
• One event counter input with double-edge functionality
• One clock-synchronous 8-bit serial interface
• Two built-in oscillators: main clock (ceramic or crystal oscillator) and external clock
• Six interrupt sources: two external sources and four internal sources
• Subroutine stack up to 16 levels, including interrupts
• Two low-power dissipation modes: standby mode and stop mode
• One external input for transition from stop mode to active mode
• Instruction cycle time: 1 µs (fOSC = 4 MHz at 1/4 division ratio)
• Two operating modes: MCU mode and MCU/PROM mode (HD4074054, HD4074094)

Application Scenarios

The A4054AE5R microcomputer is suitable for various applications that require increased program productivity and large-capacity memory. It can be used in electronic devices, automotive systems, industrial automation, and more.

Comparison

Advantages:

• Large-capacity memory for increased program productivity
• Multiple timers and input/output pins for versatile functionality
• Built-in oscillators for clock synchronization
• Low-power dissipation modes for energy efficiency

Disadvantages:

• Specifically designed for microcomputer applications
• Requires external components for certain functionalities