AT89C2051-24SI Atmel, AT89C2051-24SI Datasheet - Page 14

• Manufacturer Part Number: AT89C2051-24SI
• Description: MICRO CONTROLLER
• Manufacturer: Atmel
• Series: 89Cr

Specifications of AT89C2051-24SI

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 24MHz
• Connectivity: UART/USART
• Peripherals: LED
• Number Of I /o: 15
• Program Memory Size: 2KB (2K x 8)
• Program Memory Type: FLASH
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 6 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -
• Other names: Q1036833A

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