AT89C52-33PI Atmel, AT89C52-33PI Datasheet - Page 8

• Manufacturer Part Number: AT89C52-33PI
• Description: IC 8051 MCU FLASH 8K 40DIP
• Manufacturer: Atmel
• Series: 89Cr

Specifications of AT89C52-33PI

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 33MHz
• Connectivity: SIO, UART/USART
• Number Of I /o: 32
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 6 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 40-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -
• Peripherals: -

Figure 2. Timer 2 Auto Reload Mode (DCEN = 0)
Table 4. T2MOD – Timer 2 Mode Control Register
8
Symbol
–
T2OE
DCEN
T2MOD Address = 0C9H
Not Bit Addressable
Bit
T2EX PIN
OSC
T2 PIN
–
7
Function
Not implemented, reserved for future
Timer 2 Output Enable bit.
When set, this bit allows Timer 2 to be configured as an up/down counter.
÷12
AT89C52
TRANSITION
DETECTOR
–
6
C/T2 = 0
C/T2 = 1
–
5
EXEN2
TR2
–
4
CONTROL
CONTROL
RELOAD
–
3
RCAP2H
TH2
–
2
RCAP2L
TL2
Reset Value = XXXX XX00B
T2OE
OVERFLOW
1
EXF2
TF2
DCEN
0
INTERRUPT
TIMER 2