AT89S8252-24JI Atmel, AT89S8252-24JI Datasheet - Page 17

• Manufacturer Part Number: AT89S8252-24JI
• Description: MCU W/SPI 8KB FLSH 2K EEP 44PLCC
• Manufacturer: Atmel
• Series: 89Sr

Specifications of AT89S8252-24JI

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 24MHz
• Connectivity: SPI, UART/USART
• Peripherals: POR, WDT
• Number Of I /o: 32
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 2K x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 6 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-PLCC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Data Converters: -
• Other names: AT89S825224JI

Figure 5. Timer 2 in Clock-out Mode
Figure 6. SPI Block Diagram
0401G–MICRO–3/06
SPI STATUS REGISTER
OSCILLATOR
÷4÷16÷64÷128
SELECT
DIVIDER
SPI CONTROL
SPI INTERRUPT
SPI CLOCK (MASTER)
REQUEST
MSTR
SPE
8
INTERNAL
DATA BUS
MSB
8/16-BIT SHIFT REGISTER
8
READ DATA BUFFER
8
SPI CONTROL REGISTER
CLOCK
LOGIC
CLOCK
LSB
S
M
M
S
S
M
MISO
MOSI
P1.6
P1.5
SCK
P1.4
1.7
SS
AT89S8252
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