AT89S8253-24PU Atmel, AT89S8253-24PU Datasheet - Page 42

IC 8051 MCU FLASH 12K 40DIP

AT89S8253-24PU

Manufacturer Part Number
AT89S8253-24PU
Description
IC 8051 MCU FLASH 12K 40DIP
Manufacturer
Atmel
Series
89Sr
Datasheet

Specifications of AT89S8253-24PU

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
40-DIP (0.600", 15.24mm)
Cpu Family
89S
Device Core
8051
Device Core Size
8b
Frequency (max)
24MHz
Interface Type
SPI/UART
Total Internal Ram Size
256Byte
# I/os (max)
32
Number Of Timers - General Purpose
3
Operating Supply Voltage (typ)
3.3/5V
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (min)
2.7V
Instruction Set Architecture
CISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Through Hole
Pin Count
40
Package Type
PDIP
Processor Series
AT89x
Core
8051
Data Bus Width
8 bit
Data Ram Size
256 B
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
Through Hole
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
Compliant

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Figure 25-2. Verifying the Flash/EEPROM Memory (Parallel Mode)
PROGRAMMING
MODES TABLE
SEE FLASH
3-24 MHz
PROGRAMMING
MODES TABLE
3-24 Mhz
0000H/37FFH
SEE FLASH
0000H/37FFH
ADDR.
Fuse3 (User Row Access Fuse): This fuse enables/disables writing to the programmable user row.
Fuse4 (Clock Selection Fuse): This fuse selects between an external clock source and a quartz crystal as the clock input.
ADDR.
Programming the Flash/EEPROM Memory (Parallel Mode)
A8 - A13
A0 - A7
A8 - A13
A0 - A7
Oscillator Bypass
Fuse (Fuse4) Off
P1
P2.0 - P2.5
P3.3
P3.4
P3.5
P3.6
P3.7
XTAL2
XTAL1
GND
AT89S8253
Oscillator Bypass
Fuse (Fuse4) Off
P1
P2.0 - P2.5
P3.3
P3.4
P3.5
P3.6
P3.7
XTAL2
XTAL1
GND
AT89S8253
PSEN
P3.0
RST
ALE
V
EA
P0
PSEN
CC
RST
ALE
V
EA
P0
CC
V
CC
V
PGM DATA
(USE 10K
PULLUPS)
CC
PGM
DATA
PROG
V
RDY/BSY
(USE 10K
PULLUP)
V
PP
IH
V
V
V
I H
PP
I H
PROGRAMMING
PROGRAMMING
MODES TABLE
MODES TABLE
SEE FLASH
SEE FLASH
0000H/37FFH
0000H/37FFH
EXTERNAL
ADDR.
3-24 MHz
EXTERNAL
CLOCK
ADDR.
3-24 MHz
CLOCK
A8 - A13
A0 - A7
A8 - A13
A0 - A7
Oscillator Bypass
Fuse (Fuse4) On
P1
P2.0 - P2.5
P3.3
P3.4
P3.5
P3.6
P3.7
XTAL1
GND
Oscillator Bypass
Fuse (Fuse4) On
P1
P2.0 - P2.5
P3.3
P3.4
P3.5
P3.6
P3.7
XTAL1
GND
AT89S8253
AT89S8253
PSEN
PSEN
RST
ALE
P3.0
RST
ALE
V
EA
V
P0
EA
P0
CC
CC
V
3286P–MICRO–3/10
PGM DATA
(USE 10K
PULLUPS)
V
CC
CC
V
V
V
PGM
DATA
PROG
V
RDY/BSY
(USE 10K
PULLUP)
V
I H
PP
I H
PP
IH

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