AT89S53-24AI Atmel, AT89S53-24AI Datasheet - Page 5
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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
EA/VPP
External Access Enable. EA must be strapped to GND in
order to enable the device to fetch code from external pro-
gram memory locations starting at 0000H up to FFFFH.
Note, however, that if lock bit 1 is programmed, EA will be
internally latched on reset.
EA should be strapped to V
tions. This pin also receives the 12-volt programming
Table 1. AT89S53 SFR Map and Reset Values
0787E–MICRO–3/06
0E8H
0E0H
0D8H
0D0H
0C8H
0C0H
0B8H
0B0H
0A8H
0A0H
0F8H
0F0H
98H
90H
88H
80H
XX000000
0X000000
00000000
00000000
00000000
00000000
11111111
11111111
00000000
11111111
00000000
11111111
T2CON
SCON
TCON
PSW
ACC
P3
P2
P1
P0
IP
IE
B
XXXXXXXX
XXXXXX00
00000000
00000111
T2MOD
TMOD
SBUF
SP
CC
for internal program execu-
00XXXXXX
00000000
00000000
00000000
RCAP2L
SPSR
DP0L
TL0
00000000
00000000
00000000
RCAP2H
DP0H
TL1
enable voltage (V
volt programming is selected.
XTAL1
Input to the inverting oscillator amplifier and input to the
internal clock operating circuit.
XTAL2
Output from the inverting oscillator amplifier.
00000000
00000000
00000000
DP1L
TH0
TL2
000001XX
00000000
00000000
00000000
SPCR
DP1H
TH2
TH1
PP
) during Flash programming when 12-
XXXXXXXX
00000010
WCON
SPDR
0XXX0000
AT89S53
PCON
0FFH
0F7H
0EFH
0E7H
0DFH
0D7H
0CFH
0C7H
0BFH
0B7H
0AFH
0A7H
9FH
97H
8FH
87H
5