AT89C51RC2 Atmel Corporation, AT89C51RC2 Datasheet - Page 107

• Manufacturer Part Number: AT89C51RC2
• Manufacturer: Atmel Corporation

Specifications of AT89C51RC2

• Flash (kbytes): 32 Kbytes
• Max. Operating Frequency: 60 MHz
• Cpu: 8051-12C
• Max I/o Pins: 32
• Spi: 1
• Uart: 1
• Sram (kbytes): 1.25
• Self Program Memory: API
• Operating Voltage (vcc): 2.7 to 5.5
• Timers: 4
• Isp: UART
• Watchdog: Yes

E
Absolute Maximum Ratings
DC Parameters for
Standard Voltage
T
V
V
4180E–8051–10/06
C = commercial......................................................0°C to 70°C
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
A
CC
CC
Symbol
lectrical Characteristics
= -40°C to +85°C; V
V
V
V
V
V
V
IH1
=2.7V to 5.5V and F = 0 to 40 MHz (both internal and external code execution)
=4.5V to 5.5V and F = 0 to 60 MHz (internal code execution only)
OL1
OH
OL
IL
IH
(9)
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
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;
(6)
(6)
CC
+ 0.5V
0.2 V
V
V
V
0.7 V
0.9 V
CC
CC
CC
Min
-0.5
CC
- 0.3
- 0.7
- 1.5
+ 0.9
CC
CC
Typ
Note:
Stresses at or above those listed under “Absolute
Maximum Ratings” may cause permanent damage
to the device. This is a stress rating only and func-
tional operation of the device at these or any other
conditions above those indicated in the operational
sections of this specification is not implied. Expo-
sure to absolute maximum rating conditions may
affect device reliability.
Power dissipation value is based on the maximum
allowable die temperature and the thermal resis-
tance 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
AT89C51RB2/RC2
- 0.1
Unit
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
Test Conditions
VCC = 4.5V to 5.5V
I
I
I
VCC = 2.7V to 5.5V
I
VCC = 4.5V to 5.5V
I
I
I
VCC = 2.7V to 5.5V
I
V
I
I
I
VCC = 2.7V to 5.5V
I
OL
OL
OL
OL
OL
OL
OL
OL
OH
OH
OH
OH
CC
= 100 μA
= 1.6 mA
= 3.5 mA
= 0.8 mA
= 200 μA
= 3.2 mA
= 7.0 mA
= 1.6 mA
= -10 μA
= -30 μA
= -60 μA
= -10 μA
= 5V ± 10%
(4)
(4)
(4)
(4)
(4)
(4)
(4)
(4)
107