• Low-Cost, HC05 Core MCU in 20-Pin Package (MC68HC05JJ6) or 28-Pin Package (MC68HC05JP6) • 6160 Bytes of User ROM, Including 8 Bytes of Security Code and 16 Bytes of User Vectors • 224 Bytes of Low-Power User RAM (4 Transistor RAM) • 16-Bit Programmable Timer with Input Capture and Output Compare • 15-Stage Core Timer, Including 8-Bit Free-Running Counter and 4-Stage, Selectable Real-Time Interrupt Generator • Simple Serial Input/Output Port (SIOP) with Interrupt Capability • Two Voltage Comparators which Can be Combined with the 16- Bit Programmable Timer to Create a 4-Channel, Single-Slope Analog-to-Digital (A/D) Converter • Voltage Comparator 1 Output Can Drive the PB4 Port Pin Directly under Software Control • 14 Input/Output (I/O) Lines (MC68HC05JJ6) or 22 I/O Lines (MC68HC05JP6), Including High-Source/Sink Current Capability on Six I/O Pins (MC68HC05JJ6) or 14 I/O Pins (MC68HC05JP6) • Mask Option Selectable Software Programmable Pulldowns on All I/O Pins and Keyboard Scan Interrupt on Four I/O Pins • Software Mask and Request Bit for IRQ Interrupt with Mask Option Selectable Sensitivity on IRQ Interrupt (Edge- and Level-Sensitive or Edge-Only)
