AT89S8253-24JC Atmel, AT89S8253-24JC Datasheet - Page 33
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AT89S8253-24JC
Manufacturer Part Number
AT89S8253-24JC
Description
IC 8051 MCU FLASH 12K 44PLCC
Manufacturer
Atmel
Series
89Sr
Datasheet
1.AT89S8253-24PU.pdf
(60 pages)
Specifications of AT89S8253-24JC
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
0°C ~ 70°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
+ 70 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
0 C
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Data Converters
-
Lead Free Status / Rohs Status
No
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT89S8253-24JC
Manufacturer:
ATMEL
Quantity:
5 530
Company:
Part Number:
AT89S8253-24JC
Manufacturer:
ATM
Quantity:
3 290
Company:
Part Number:
AT89S8253-24JC
Manufacturer:
ATMEL
Quantity:
6 988
Part Number:
AT89S8253-24JC
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
16. Oscillator Characteristics
3286P–MICRO–3/10
XTAL1 and XTAL2 are the input and output, respectively, of an inverting amplifier that can be
configured for use as an on-chip oscillator, as shown in
crystal or ceramic resonator may be used. For frequencies above 16MHz it is recommended that
C1 be replaced with R1 for improved startup performance. Note that the internal structure of the
devices adds about 10 pF of capacitance to both XTAL1 and XTAL2. The total capacitance on
XTAL1 or XTAL2, including the external load capacitor (C1/C2) plus internal device load, board
trace and crystal loadings, should not exceed 20 pF.
the relationship between clock loading and the respective resulting clock amplitudes.
Figure 16-1. Oscillator Connections
Note:
Figure 16-2. Quartz Crystal Clock Source (A)
C1, C2 = 0–10 pF for Crystals
R1
6
5
4
3
2
1
0
0
(A) Low Frequency
= 0–10 pF for Ceramic Resonators
= 4–5 MΩ
C2
C1
4
Quartz Crystal Clock Input
8
~10 pF
~10 pF
Frequency (MHz)
12
Figure
(B) High Frequency
16
Figure 16-1
C2
R1
16-2, 16-3,
20
(A) and (B). Either a quartz
C1=C2=0pF
C1=C2=5pF
C1=C2=10pF
16-4
AT89S8253
and
24
~10 pF
~10 pF
16-5
illustrate
33