AT89C52-33AI Atmel, AT89C52-33AI Datasheet - Page 8
![IC 8051 MCU FLASH 8K 44TQFP](/photos/6/70/67042/313-44-tqfp_sml.jpg)
AT89C52-33AI
Manufacturer Part Number
AT89C52-33AI
Description
IC 8051 MCU FLASH 8K 44TQFP
Manufacturer
Atmel
Series
89Cr
Datasheet
1.AT89C52-24AC.pdf
(24 pages)
Specifications of AT89C52-33AI
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
44-TQFP, 44-VQFP
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