NXP Semiconductors P89LPC933HDH,512 Connectivity: I??C, SPI, UART/USART Core Processor: 8051 Core Size: 8-Bit Data Converters: A/D 4x8b; D/A 1x8b Eeprom Size: - Lead Free Status / Rohs Status: Lead free / RoHS Compliant Number Of I /o: 26 Operating Temperature: -40?°C ~ 125?°C Oscillator Type: Internal Package / Case: 28-TSSOP (0.173", 4.40mm Width) Peripherals: Brown-out Detect/Reset, LED, POR, PWM, WDT Program Memory Size: 4KB (4K x 8) Program Memory Type: FLASH Ram Size: 256 x 8 Series: LPC900 Speed: 18MHz Voltage - Supply (vcc/vdd): 2.4 V ~ 3.6 V RoHS: yes On-Chip ADC: Yes Operating Supply Voltage: 2.4 V to 3.6 V Factory Pack Quantity: 51