AT89S8253-24JC Atmel, AT89S8253-24JC Datasheet - Page 51

• 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

AT89S8253
37. Serial Port Timing: Shift Register Mode Test Conditions
Variable Oscillator
Symbol
Parameter
Min
Max
Units
38. Shift Register Mode Timing Waveforms
(1)
39. AC Testing Input/Output Waveforms
Note:
1. AC Inputs during testing are driven at V
- 0.5V for a logic 1 and 0.45V for a logic 0. Timing measurements are made at V
CC
IH
min. for a logic 1 and V
max. for a logic 0.
IL
(1)
40. Float Waveforms
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