AT89LS52-16AU Atmel, AT89LS52-16AU Datasheet - Page 14

• Manufacturer Part Number: AT89LS52-16AU
• Description: IC MCU 8K FLASH 16MHZ 44-TQFP
• Manufacturer: Atmel
• Series: 89LSr

Specifications of AT89LS52-16AU

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: UART/USART
• Peripherals: WDT
• 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): 2.7 V ~ 4 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Processor Series: AT89x
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: UART
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 3
• Operating Supply Voltage: 2.7 V to 4 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Development Tools By Supplier: AT89ISP
• Minimum Operating Temperature: - 40 C
• Package: 44TQFP
• Device Core: 8051
• Family Name: 89LS
• Maximum Speed: 16 MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Figure 10-2. Timer 2 Auto Reload Mode (DCEN = 0)
Table 10-2.
14
Symbol
–
T2OE
DCEN
T2MOD Address = 0C9H
Not Bit Addressable
Bit
T2EX PIN
OSC
AT89LS52
T2 PIN
T2MOD – Timer 2 Mode Control Register
–
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
TRANSITION
DETECTOR
–
6
C/T2 = 0
C/T2 = 1
–
5
EXEN2
CONTROL
TR2
–
4
CONTR OL
RELO AD
–
3
RCAP2H
TH2
RCAP2L
–
2
TL2
Reset Value = XXXX XX00B
OVERFLOW
T2OE
1
EXF2
TF2
DCEN
0
INTERRUPT
2601C–MICRO–06/08
TIMER 2