AT89S51-24AU Atmel, AT89S51-24AU Datasheet - Page 6
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AT89S51-24AU
Manufacturer Part Number
AT89S51-24AU
Description
IC MCU 4K FLASH 24MHZ 44-TQFP
Manufacturer
Atmel
Series
89Sr
Datasheet
1.AT89S51-24JU.pdf
(31 pages)
Specifications of AT89S51-24AU
Core Processor
8051
Core Size
8-Bit
Speed
24MHz
Connectivity
UART/USART
Peripherals
WDT
Number Of I /o
32
Program Memory Size
4KB (4K x 8)
Program Memory Type
FLASH
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-TQFP, 44-VQFP
Processor Series
AT89x
Core
8051
Data Bus Width
8 bit
Data Ram Size
128 B
Interface Type
ISP/UART
Maximum Clock Frequency
24 MHz
Number Of Programmable I/os
32
Number Of Timers
2
Operating Supply Voltage
4 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
Controller Family/series
AT89
No. Of I/o's
32
Ram Memory Size
128Byte
Cpu Speed
24MHz
No. Of Timers
2
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT89S51-24AU
Manufacturer:
ATMEL
Quantity:
122 400
Part Number:
AT89S51-24AU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
4.11
4.12
5. Special Function Registers
6
XTAL1
XTAL2
AT89S51
EA should be strapped to V
This pin also receives the 12-volt programming enable voltage (V
Input to the inverting oscillator amplifier and input to the internal clock operating circuit.
Output from the inverting oscillator amplifier
A map of the on-chip memory area called the Special Function Register (SFR) space is shown in
Table
Note that not all of the addresses are occupied, and unoccupied addresses may not be imple-
mented on the chip. Read accesses to these addresses will in general return random data, and
write accesses will have an indeterminate effect.
5-1.
CC
for internal program executions.
PP
) during Flash programming.
2487D–MICRO–6/08