AT89C51RE2 Atmel Corporation, AT89C51RE2 Datasheet - Page 166

• Manufacturer Part Number: AT89C51RE2
• Manufacturer: Atmel Corporation

Specifications of AT89C51RE2

• Flash (kbytes): 128 Kbytes
• Max. Operating Frequency: 60 MHz
• Cpu: 8051-12C
• Max I/o Pins: 34
• Spi: 1
• Uart: 2
• Sram (kbytes): 8.25
• Self Program Memory: API
• Operating Voltage (vcc): 2.7 to 5.5
• Timers: 4
• Isp: UART/OCD
• Watchdog: Yes

Electrical Characteristics
Absolute Maximum Ratings
DC Parameters
T
166
A
I = industrial ........................................................-40°C to 85°C
Storage Temperature .................................... -65°C to + 150°C
Voltage on V
Voltage on V
Voltage on Any Pin to V
Power Dissipation ........................................................... 1 W
Symbol
= -40°C to +85°C; V
V
V
V
V
V
V
V
OH1
OL1
IH1
OH
OL
IH
IL
AT89C51RE2
Parameter
Input Low Voltage
Input High Voltage except RST, XTAL1
Input High Voltage RST, XTAL1
Output Low Voltage, ports 1, 2, 3, 4
Output Low Voltage, port 0, ALE, PSEN
Output High Voltage, ports 1, 2, 3, 4
Output High Voltage, port 0, ALE, PSEN
CC
CC
to V
to V
SS
SS
(standard voltage) .........-0.5V to + 6.5V
(low voltage)..................-0.5V to + 4.5V
SS
SS
..........................-0.5V to V
= 0V; V
CC
=2.7V to 5.5V; F = 0 to 40 MHz
(6)
(6)
CC
+ 0.5V
0.2 V
V
V
V
V
V
V
(2)
0.7 V
0.9 V
0.9 V
CC
CC
CC
CC
CC
CC
Min
-0.5
CC
- 0.3
- 0.7
- 1.5
- 0.3
- 0.7
- 1.5
CC
CC
CC
+ 0.9
Note:
Typ
Stresses at or above those listed under “Absolute
Maximum Ratings” may cause permanent damage to
the device. This is a stress rating only and functional
operation of the device at these or any other condi-
tions above those indicated in the operational
sections of this specification is not implied. Exposure
to absolute maximum rating conditions may affect
device reliability.
Power dissipation is based on the maximum allow-
able die temperature and the thermal resistance of
the package.
0.2 V
V
V
CC
CC
Max
0.45
0.45
0.45
0.45
0.3
1.0
0.3
1.0
CC
+ 0.5
+ 0.5
- 0.1
Unit
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
Test Conditions
V
I
I
I
V
I
V
I
I
I
V
I
V
I
I
I
V
I
V
I
I
I
V
I
OL
OL
OL
OL
OL
OL
OL
OL
OH
OH
OH
OH
OH
OH
OH
OH
CC
CC
CC
CC
CC
CC
CC
CC
= 100 μ A
= 1.6 mA
= 3.5 mA
= 0.8 mA
= 200 μ A
= 3.2 mA
= 7.0 mA
= 1.6 mA
7663E–8051–10/08
= -10 μ A
= -30 μ A
= -60 μ A
= -10 μ A
= -200 μ A
= -3.2 mA
= -7.0 mA
= -10 μ A
= 4.5V to 5.5V
= 2.7V to 5.5V
= 4.5V to 5.5V
= 2.7V to 5.5V
= 5V ± 10%
= 2.7V to 5.5V
= 5V ± 10%
= 2.7V to 5.5V
(4)
(4)
(4)
(4)
(4)
(4)
(4)
(4)