• Fully compatible to standard 8051 microcontroller
• Up to 40 MHz operating frequency
• 16 K×8 ROM (C504-2R only, optional ROM protection)
• 256×8 RAM
• 256×8 XRAM
• Four 8-bit ports, (2 ports with mixed analog/digital I/O capability)
• Three 16-bit timers/counters (timer 2 with up/down counter feature)
• Capture/compare unit for PWM signal generation and signal capturing
- 3-channel, 16-bit capture/compare unit
- 1-channel, 10-bit compare unit
• Compare unit
• USART
• 10-bit A/D Converter with 8 multiplexed inputs
• Twelve interrupt sources with two priority levels
• On-chip emulation support logic (Enhanced Hooks Technology TM)
• Programmable 15-bit Watchdog Timer
• Oscillator Watchdog
• Fast Power On Reset
• Power Saving Modes
• M-QFP-44 package
• Temperature ranges: SAB-C504 TA : 0 to 70°C
                                SAF-C504 TA : – 40 to 85°C
                             SAH-C504 TA : – 40 to 110°C (max. operating frequency.: TBD)
                            SAK-C504 TA : – 40 to 125°C (max. operating frequency.: 12 MHz)