AT89S8253-24JI Atmel, AT89S8253-24JI Datasheet - Page 6
![IC 8051 MCU FLASH 12K 44PLCC](/photos/6/70/67043/453-44-plcc_sml.jpg)
AT89S8253-24JI
Manufacturer Part Number
AT89S8253-24JI
Description
IC 8051 MCU FLASH 12K 44PLCC
Manufacturer
Atmel
Series
89Sr
Datasheet
1.AT89S8253-24PU.pdf
(60 pages)
Specifications of AT89S8253-24JI
Core Processor
8051
Core Size
8-Bit
Speed
24MHz
Connectivity
SPI, UART/USART
Peripherals
POR, WDT
Number Of I /o
32
Program Memory Size
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
44-PLCC
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 bit
Operating Supply Voltage
2.7 V to 5.5 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
Data Converters
-
Lead Free Status / Rohs Status
No RoHS Version Available
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT89S8253-24JI
Manufacturer:
ATMEL
Quantity:
5 530
Company:
Part Number:
AT89S8253-24JI
Manufacturer:
ATM
Quantity:
3 290
Company:
Part Number:
AT89S8253-24JI
Manufacturer:
ATMEL
Quantity:
13 888
3.13
3.14
3.15
4. Block Diagram
6
EA/VPP
XTAL1
XTAL2
AT89S8253
External Access Enable. EA must be strapped to GND in order to enable the device to fetch
code from external program 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
programming enable voltage (V
selected.
Input to the inverting oscillator amplifier and input to the internal clock operating circuit.
Output from the inverting oscillator amplifier. XTAL2 should not drive a board-level clock without
a buffer.
ALE/PROG
EA / V
PSEN
RST
V
GND
PP
CC
EEPROM
CONTROL
REGISTER
TIMING
AND
OSC
B
RAM ADDR.
REGISTER
INSTRUCTION
REGISTER
WATCH
DOG
CC
ACC
for internal program executions. This pin also receives the 12-volt
TMP2
PP
) during Flash programming when 12-volt programming is
RAM
PORT 3 DRIVERS
PSW
P3.0 - P3.7
PORT 0 DRIVERS
PORT 3
LATCH
ALU
P0.0 - P0.7
PORT 0
LATCH
TMP1
INTERRUPT, SERIAL PORT,
AND TIMER BLOCKS
PORT 2
LATCH
PORT 1 DRIVERS
PORT 1
LATCH
PORT 2 DRIVERS
POINTER
P2.0 - P2.7
STACK
P1.0 - P1.7
FLASH
PORT
SPI
INCREMENTER
PROGRAM
PROGRAM
REGISTER
PROGRAM
ADDRESS
COUNTER
LOGIC
BUFFER
DUAL
DPTR
PC
3286P–MICRO–3/10