AT89S8253-24JC Atmel, AT89S8253-24JC Datasheet - Page 34

• Manufacturer Part Number: AT89S8253-24JC
• Description: IC 8051 MCU FLASH 12K 44PLCC
• Manufacturer: Atmel
• Series: 89Sr

Specifications of AT89S8253-24JC

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 24MHz
• Connectivity: SPI, UART/USART
• Peripherals: POR, WDT
• Number Of I /o: 32
• Program Memory Size: 12KB (12K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 2K x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 44-PLCC
• 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 bit
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: 0 C
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Data Converters: -
• Lead Free Status / Rohs Status: No

34
AT89S8253
Figure 16-3. Quartz Crystal Clock Source (B)
Figure 16-4. Ceramic Resonator Clock Source (A)
7
6
5
4
3
2
1
0
6
5
4
3
2
1
0
0
0
4
4
Ceramic Resonator Clock Input
Quartz Crystal Clock Input
8
8
Frequency (MHz)
Frequency (MHz)
12
12
16
16
20
20
C1=C2=0pF
C1=C2=5pF
C1=C2=10pF
C2=0pF
C2=5pF
C2=10pF
R1=4MΩ
24
24
3286P–MICRO–3/10