AT89C2051-12PC Atmel, AT89C2051-12PC Datasheet - Page 14

• Manufacturer Part Number: AT89C2051-12PC
• Manufacturer: Atmel

Specifications of AT89C2051-12PC

• Cpu Family: 89C
• Device Core: 8051
• Device Core Size: 8b
• Frequency (max): 12MHz
• Interface Type: UART
• Program Memory Type: Flash
• Program Memory Size: 2KB
• Total Internal Ram Size: 128Byte
• # I/os (max): 15
• Number Of Timers - General Purpose: 2
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 6V
• Operating Supply Voltage (min): 2.7V
• Instruction Set Architecture: CISC
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Through Hole
• Pin Count: 20
• Package Type: PDIP
• Lead Free Status / Rohs Status: Not Compliant

21. Shift Register Mode Timing Waveforms
22. AC Testing Input/Output Waveforms
Note:
23. Float Waveforms
Note:
14
1. AC Inputs during testing are driven at V
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
AT89C2051
min. for a logic 1 and V
float when 100 mV change from the loaded V
(1)
IL
max. for a logic 0.
CC
- 0.5V for a logic 1 and 0.45V for a logic 0. Timing measurements are made at V
OH
/V
OL
level occurs.
(1)
0368H–MICRO–6/08
IH