AT89S52-24JI Atmel, AT89S52-24JI Datasheet - Page 26

• Manufacturer Part Number: AT89S52-24JI
• Description: IC MCU 8K FLASH 24MHZ 44-PLCC
• Manufacturer: Atmel
• Series: 89Sr

Specifications of AT89S52-24JI

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 24MHz
• 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): 4 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-PLCC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -

24. Flash Programming and Verification Waveforms – Serial Mode
26
AT89S52
Figure 23-2. Flash Memory Serial Downloading
Figure 24-1. Serial Programming Waveforms
3-33 MHz
DATA OUTPUT
INSTRUCTION
CLOCK IN
INPUT
7
6
5
P1.5/MOSI
P1.6/MISO
P1.7/SCK
XTAL2
XTAL1
GND
AT89S52
4
RST
V
3
CC
2
V
CC
V
IH
1
1919D–MICRO–6/08
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