AT89S53-24AI Atmel, AT89S53-24AI Datasheet - Page 28

• Manufacturer Part Number: AT89S53-24AI
• Description: IC MICRO CTRL 24MHZ 44TQFP
• Manufacturer: Atmel
• Series: 89Sr

Specifications of AT89S53-24AI

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 24MHz
• Connectivity: SPI, UART/USART
• Peripherals: WDT
• Number Of I /o: 32
• Program Memory Size: 12KB (12K 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
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: SPI, 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 6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: No

External Data Memory Write Cycle
External Clock Drive Waveforms
External Clock Drive
28
Symbol
1/t
t
t
t
t
t
CLCL
CHCX
CLCX
CLCH
CHCL
CLCL
AT89S53
Parameter
Oscillator Frequency
Clock Period
High Time
Low Time
Rise Time
Fall Time
41.6
Min
15
15
0
V
CC
= 4.0V to 6.0V
Max
24
20
20
0787E–MICRO–3/06
Units
MHz
ns
ns
ns
ns
ns