AT89LV55-12PC Atmel, AT89LV55-12PC Datasheet - Page 26

• Manufacturer Part Number: AT89LV55-12PC
• Description: IC 8051 MCU FLASH 20K 40DIP
• Manufacturer: Atmel
• Series: 89LVr

Specifications of AT89LV55-12PC

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 12MHz
• Connectivity: UART/USART
• Number Of I /o: 32
• Program Memory Size: 20KB (20K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 6 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 40-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -
• Peripherals: -

30. Shift Register Mode Timing Waveforms
31. AC Testing Input/Output Waveforms
Note:
32. Float Waveforms
Note:
26
1. AC Inputs during testing are driven at 2.4V for a logic “1” and 0.45V for a logic “0”. Timing measurements are made at 2.0V
1. For timing purposes, a port pin is no longer floating when a 100 mV change from load voltage occurs. A port pin begins to
AT89LV55
for a logic “1” and 0.8V for a logic “0”.
float when a 100 mV change from the loaded V
(1)
OH
/V
OL
(1)
level occurs.
0811E–MICRO–9/08