AT89S53-24AI Atmel, AT89S53-24AI Datasheet - Page 14
![IC MICRO CTRL 24MHZ 44TQFP](/photos/6/70/67042/313-44-tqfp_sml.jpg)
AT89S53-24AI
Manufacturer Part Number
AT89S53-24AI
Description
IC MICRO CTRL 24MHZ 44TQFP
Manufacturer
Atmel
Series
89Sr
Datasheet
1.AT89S53-24JI.pdf
(35 pages)
Specifications of AT89S53-24AI
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
-40°C ~ 85°C
Package / Case
44-TQFP, 44-VQFP
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 x 16 bit
Operating Supply Voltage
4 V to 6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-
Lead Free Status / Rohs Status
No
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT89S53-24AI
Manufacturer:
HIROSE
Quantity:
101
Part Number:
AT89S53-24AI
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Figure 5. Timer 2 in Clock-Out Mode
Figure 6. SPI Block Diagram
14
AT89S53
SPI STATUS REGISTER
OSCILLATOR
÷4÷16÷64÷128
SELECT
DIVIDER
SPI CONTROL
SPI INTERRUPT
SPI CLOCK (MASTER)
REQUEST
MSTR
SPE
8
INTERNAL
MSB
DATA BUS
8/16-BIT SHIFT REGISTER
8
READ DATA BUFFER
8
SPI CONTROL REGISTER
CLOCK
LOGIC
LSB
CLOCK
S
M
M
S
S
M
MISO
MOSI
P1.6
P1.5
SCK
P1.4
1.7
SS
0787E–MICRO–3/06