AT89S8253-24JU Atmel, AT89S8253-24JU Datasheet - Page 52

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

Specifications of AT89S8253-24JU

• 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: -40°C ~ 85°C
• Package / Case: 44-PLCC
• Processor Series: AT89x
• Core: 8051
• 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
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Development Tools By Supplier: AT89ISP
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Converters: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

41. I
42. I
43. Clock Signal Waveform for I
44. I
52
t
V
CC
CC
CC
CLCH
CC
AT89S8253
Test Condition, Active Mode, All Other Pins are Disconnected
Test Condition, Idle Mode, All Other Pins are Disconnected
Test Condition, Power-down Mode, All Other Pins are Disconnected,
= 2V to 5.5V
= t
CHCL
0.45V
= 5 ns
V
CC
- 0.5V
0.2 V
0.7 V
CLOCK SIGNAL
CLOCK SIGNAL
CC
t
CHCL
- 0.1V
(NC)
CC
CC
(NC)
(NC)
Tests in Active and Idle Modes,
RST
XTAL2
XTAL1
VSS
RST
XTAL2
XTAL1
V
RST
XTAL2
XTAL1
V
SS
SS
t
CHCX
V
EA
CC
P0
V
V
EA
EA
CC
CC
P0
P0
I
CC
V
V
t
CC
CC
CLCL
I
I
CC
CC
V
V
V
V
CC
CC
CC
CC
t
CLCH
t
CHCX