AT89LP51 Atmel Corporation, AT89LP51 Datasheet - Page 92

• Manufacturer Part Number: AT89LP51
• Manufacturer: Atmel Corporation

Specifications of AT89LP51

• Flash (kbytes): 4 Kbytes
• Max. Operating Frequency: 20 MHz
• Cpu: 8051-1C
• Max I/o Pins: 36
• Uart: 1
• Sram (kbytes): 0.25
• Eeprom (bytes): 256
• Self Program Memory: IAP
• Operating Voltage (vcc): 2.4 to 5.5
• Timers: 3
• Isp: SPI
• Watchdog: Yes

18. Electrical Characteristics
18.1
18.2
T
Notes:
92
Symbol
V
V
V
V
V
I
I
I
C
I
IL
TL
LI
CC
Operating Temperature ................................... -40°C to +85°C
Storage Temperature ..................................... -65°C to +150°C
Voltage on Any Pin with Respect to Ground......-0.7V to +5.5V
Maximum Operating Voltage ............................................ 5.5V
Total DC Output Current ........................................... 150.0 mA
A
OL
OH
OH1
IL
IH
IO
= -40°C to 85°C, V
Absolute Maximum Ratings*
DC Characteristics
1. Under steady state (non-transient) conditions, I
AT89LP51/52
Maximum I
Maximum total I
If I
than the listed test conditions.
OL
Parameter
Input Low-voltage
Input High-voltage
Output Low-voltage
Output High-voltage
With Weak Pull-ups Enabled
Output High-voltage
With Strong Pull-ups Enabled
Logic 0 Input Current
Logic 1 to 0 Transition Current
Input Leakage Current
Pin Capacitance
Power Supply Current
(Fast Mode)
Power Supply Current
(Compatibility Mode)
Power-down Mode
exceeds the test condition, V
OL
DD
per port pin: 10 mA
= 2.4V to 5.5V (unless otherwise noted)
OL
for all output pins: 100 mA
(2)
(1)
OL
may exceed the related specification. Pins are not guaranteed to sink current greater
Condition
I
I
I
I
I
I
I
I
I
V
V
0 < V
Test Freq. = 1 MHz, T
Active Mode, 12 MHz, V
Idle Mode, 12 MHz, V
Active Mode, 12 MHz, V
Idle Mode, 12 MHz, V
V
V
OL
OL
OH
OH
OH
OH
OH
OH
OH
IN
IN
DD
DD
= 8 mA, V
= 4 mA, V
= -60 µA, V
= -25 µA
= -10 µA
= -7 mA, V
= -2.5 mA, V
= -10 mA, V
= -6 mA, V
= 0.45V
= 2V, V
= 5V
= 3V
IN
< V
OL
DD
DD
must be externally limited as follows:
DD
DD
= 5V ± 10%
DD
DD
DD
DD
= 5V ± 10%
= 2.4V
DD
= 5V ± 10%
= 2.4V
= 5V ± 10%
= 5V ± 10%
= 2.4V
*NOTICE:
A
DD
DD
= 25°C
DD
DD
= 5V
= 5V
= 5V
= 5V
Stresses beyond those listed under “Absolute
Maximum Ratings” may cause permanent dam-
age to the device. This is a stress rating only and
functional operation of the device at these or any
other conditions beyond those indicated in the
operational sections of this specification is not
implied. Exposure to absolute maximum rating
conditions for extended periods may affect
device reliability.
min(0.7V
0.85 V
0.75 V
0.7 V
0.9 V
2.4
Min
-0.5
2.4
(3)
DD
DD
)
DD
DD
DD
,
min(0.25V
V
DD
0.8
Max
-200
±10
0.5
-50
10
10
3
4
2
5
2
+ 0.5
(3)
3709D–MICRO–12/11
)
DD
,
Units
mA
mA
mA
mA
µA
µA
µA
pF
µA
µA
V
V
V
V
V
V