AT89LP51ED2-20AU Atmel, AT89LP51ED2-20AU Datasheet - Page 228
AT89LP51ED2-20AU
Manufacturer Part Number
AT89LP51ED2-20AU
Description
8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V
Manufacturer
Atmel
Datasheet
1.AT89LP51ED2-20AAU.pdf
(254 pages)
Specifications of AT89LP51ED2-20AU
Rohs
yes
Core
8051
Processor Series
AT89x
Data Bus Width
8 bit
Maximum Clock Frequency
20 MHz
Program Memory Size
64 KB
Data Ram Size
256 B
On-chip Adc
Yes
Operating Supply Voltage
2.4 V to 5.5 V
Operating Temperature Range
- 40 C to + 85 C
Package / Case
TQFP-44
Mounting Style
SMD/SMT
Data Rom Size
4 KB
Interface Type
2-Wire, SPI, UART
Number Of Programmable I/os
36
Number Of Timers
3
Program Memory Type
Flash
Factory Pack Quantity
160
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25.4
The values shown in this table are valid for T
Figure 25-5. External Clock Drive Waveform
Table 25-1.
Table 25-2.
228
Symbol
1/t
t
t
t
t
t
Symbol
f
f
CLCL
CHCX
CLCX
CLCH
CHCL
XTAL
RC
CLCL
Clock Characteristics
AT89LP51RD2/ED2/ID2 Preliminary
Parameter
Oscillator Frequency
Clock Period
External Clock High Time
External Clock Low Time
External Clock Rise Time
External Clock Fall Time
Parameter
Crystal Oscillator Frequency
Internal Oscillator Frequency
External Clock Parameters
Clock Characteristics
A
= -40°C to 85°C and V
Condition
Low Power Oscillator
High Power Oscillator
T
V
A
DD
= 25°C; V
V
Min
= 2.4 to 5.5V
50
DD
0
= 2.4V to 5.5V
DD
= 5.0V
DD
Max
= 2.4 to 5.5V, unless otherwise noted.
20
V
7.92
7.80
Min
Min
40
12
12
DD
0
0
0
= 4.5V to 5.5V
Max
Max
8.08
8.20
25
12
24
5
5
3714A–MICRO–7/11
Units
Units
MHz
MHz
MHz
MHz
MHz
ns
ns
ns
ns
ns
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