AT89S53-24AC Atmel, AT89S53-24AC Datasheet - Page 22

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

Specifications of AT89S53-24AC

• 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: 0°C ~ 70°C
• Package / Case: 44-TQFP, 44-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -

Figure 13. Programming the Flash Memory
Figure 14. Verifying the Flash Memory
22
PROGRAMMING
MODES TABLE
3-24 Mhz
PROGRAMMING
SEE FLASH
3-24 Mhz
MODES TABLE
SEE FLASH
0000H/2FFFH
0000H/2FFFH
ADDR.
ADDR.
AT89S53
A8 - A13
A0 - A7
A8 - A13
A0 - A7
P1
P2.0 - P2.5
P2.6
P2.7
P3.6
P3.7
XTAL2
XTAL1
GND
P1
P2.0 - P2.5
P2.6
P2.7
P3.6
P3.7
XTAL2
XTAL1
GND
AT89S53
AT89S53
PSEN
PSEN
RST
ALE
RST
ALE
V
V
EA
P0
EA
P0
CC
CC
+5V
PGM DATA
(USE 10K
PULLUPS)
+5V
PGM
DATA
PROG
V
V
V
V
V
PP
I H
I H
PP
I H
Figure 15. Flash Serial Downloading
3-24 Mhz
DATA OUTPUT
INSTRUCTION
CLOCK IN
INPUT
P1.5/MOSI
P1.6/MISO
P1.7/SCK
XTAL2
XTAL1
GND
AT89S53
RST
V
CC
+4.0V to 6.0V
0787E–MICRO–3/06
V
I H