AT89LV55-12AI Atmel, AT89LV55-12AI Datasheet - Page 21

• Manufacturer Part Number: AT89LV55-12AI
• Description: IC 8051 MCU FLASH 20K 44TQFP
• Manufacturer: Atmel
• Series: 89LVr

Specifications of AT89LV55-12AI

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 12MHz
• Connectivity: UART/USART
• Number Of I /o: 32
• Program Memory Size: 20KB (20K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 6 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: UART
• Maximum Clock Frequency: 12 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 3 bit
• Operating Supply Voltage: 2.7 V to 6 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
• Eeprom Size: -
• Data Converters: -
• Peripherals: -
• Lead Free Status / Rohs Status: No

21. Absolute Maximum Ratings*
22. DC Characteristics
The values shown in this table are valid for T
Notes:
0811E–MICRO–9/08
Operating Temperature ..............................................-55°C to +125°C
Storage Temperature ..................................................-65°C to +150°C
Voltage on Any Pin
with Respect to Ground ................................................. -1.0V to +7.0V
Maximum Operating Voltage .........................................................6.6V
DC Output Current...................................................................15.0 mA
Symbol
V
V
V
V
V
V
V
V
I
I
I
RRST
C
I
IL
TL
LI
CC
IL
IL1
IH
IH1
OL
OL1
OH
OH1
IO
1. Under steady state (non-transient) conditions, I
2. Minimum V
Maximum I
Maximum I
Port 0: 26 mA, Ports 1, 2, 3: 15 mA
Maximum total I
If I
than the listed test conditions.
Parameter
Input Low Voltage
Input Low Voltage (EA)
Input High Voltage
Input High Voltage
Output Low Voltage
(Ports 1, 2, 3)
Output Low Voltage
(Port 0, ALE, PSEN)
Output High Voltage
(Ports 1, 2, 3, ALE, PSEN)
Output High Voltage
(Port 0 in External Bus Mode)
Logical 0 Input Current
(Ports 1, 2, 3)
Logical 1 to 0 Transition Current
(Ports 1, 2, 3)
Input Leakage Current
(Port 0, EA)
Reset Pulldown Resistor
Pin Capacitance
Power Supply Current
Power-down Mode
OL
exceeds the test condition, V
OL
OL
CC
per port pin: 10 mA
per 8-bit port:
for Power-down is 2V.
OL
(1)
(1)
(1)
for all output pins: 71 mA
OL
Condition
(Except EA)
(Except XTAL1, RST)
(XTAL1, RST)
I
I
I
I
I
I
I
I
V
V
0.45 < V
Test Freq. = 1 MHz, T
Active Mode, 12 MHz
Idle Mode, 12 MHz
V
V
OL
OL
OH
OH
OH
OH
OH
OH
may exceed the related specification. Pins are not guaranteed to sink current greater
A
IN
IN
CC
CC
= 1.6 mA
= 3.2 mA
= -40°C to 85°C and V
= -60 μA, V
= -25 μA
= -10 μA
= -800 μA, V
= -300 μA
= -80 μA
= 0.45V
= 2V
= 6V
= 3V
IN
< V
OL
CC
CC
must be externally limited as follows:
CC
= 5V ± 10%
= 5V ± 10%
A
= 25°C
*NOTICE:
CC
= 2.7V to 6.0V, unless otherwise noted.
Stresses beyond those listed under “Absolute Maxi-
mum Ratings” may cause permanent damage to the
device. This is a stress rating only and functional oper-
ation 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.
0.2 V
0.75 V
0.75 V
0.7 V
0.9 V
0.9 V
Min
-0.5
-0.5
2.4
2.4
CC
50
+ 0.9
CC
CC
CC
CC
CC
0.2 V
0.2 V
V
V
CC
CC
Max
-650
0.45
0.45
300
100
-50
±10
6.5
25
40
CC
10
AT89LV55
CC
+ 0.5
+ 0.5
- 0.1
- 0.3
Units
mA
mA
μA
μA
μA
kΩ
pF
μA
μA
V
V
V
V
V
V
V
V
V
V
V
V
21