AT89C55-24PI Atmel, AT89C55-24PI Datasheet - Page 9

Microcontrollers (MCU) 80C31 w/20k

AT89C55-24PI

Manufacturer Part Number
AT89C55-24PI
Description
Microcontrollers (MCU) 80C31 w/20k
Manufacturer
Atmel
Datasheet

Specifications of AT89C55-24PI

Data Bus Width
8 bit
Program Memory Type
Flash
Program Memory Size
20 KB
Data Ram Size
256 B
Interface Type
UART
Maximum Clock Frequency
24 MHz
Number Of Programmable I/os
32
Number Of Timers
3 x 16 bit
Operating Supply Voltage
4 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
Package / Case
PDIP-40
Minimum Operating Temperature
- 40 C
Lead Free Status / Rohs Status
No

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AT89C55-24PI
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Figure 3. Timer 2 Auto Reload Mode (DCEN = 1)
Figure 4. Timer 2 in Baud Rate Generator Mode
OSC
÷
T2 PIN
12
C/T2 = 0
C/T2 = 1
TR2
CONTROL
(DOWN COUNTING RELOAD VALUE)
(UP COUNTING RELOAD VALUE)
RCAP2H
0FFH
TH2
RCAP2L
0FFH
TL2
OVERFLOW
T2EX PIN
COUNT
DIRECTION
1=UP
0=DOWN
TOGGLE
INTERRUPT
TIMER 2
TF2
EXF2
4-177

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