T89C51RD2-3CTC-L View Datasheet(PDF) - Atmel Corporation
Part Name
Description
MFG CO.
'T89C51RD2-3CTC-L' PDF : 86 Pages View PDF
T89C51RD2
9.3. DC Parameters for Standard Voltage (2)
TA = 0°C to +70°C; VSS = 0 V; VCC = 3 V to 5.5 V; F = 0 to 33 MHz.
TA = -40°C to +85°C; VSS = 0 V; VCC = 3 V to 5.5 V; F = 0 to 33 MHz.
Symbol
Parameter
Min
Typ(5)
Max
Unit Test Conditions
VIL
Input Low Voltage
-0.5
0.2 VCC - 0.1 V
VIH
Input High Voltage except XTAL1, RST
0.2 VCC + 0.9
VCC + 0.5
V
VIH1 Input High Voltage, XTAL1, RST
0.7 VCC
VCC + 0.5
V
VOL
Output Low Voltage, ports 1, 2, 3, 4 and 5 (6)
0.45
V IOL = 0.8 mA(4)
VOL1 Output Low Voltage, port 0, ALE, PSEN (6)
0.45
V IOL = 1.6 mA(4)
VOH Output High Voltage, ports 1, 2, 3, 4 and 5
0.9 VCC
V IOH = -10 µA
VOH1 Output High Voltage, port 0, ALE, PSEN
0.9 VCC
V IOH = -40 µA
IIL
Logical 0 Input Current ports 1, 2, 3, 4 and 5
-50
µA Vin = 0.45 V
ILI
Input Leakage Current
±10
µA 0.45 V < Vin < VCC
ITL
Logical 1 to 0 Transition Current, ports 1, 2, 3,
4 and 5
-650
µA Vin = 2.0 V
RRST RST Pulldown Resistor
50
90
200
kΩ
CIO Capacitance of I/O Buffer
10
pF Fc = 1 MHz
TA = 25°C
IPD
Power Down Current
120
150
µA VCC = 3 V to 5.5 V(3)
ICCOP Power Supply Current on normal mode
0.7 Freq
(MHz) + 3 mA mA VCC = 5.5 V(1)
ICCIDLE Power Supply Current on idle mode
0.5 Freq
(MHz) + 2 mA mA VCC = 5.5 V(2)
Table 36. DC Parameters for Standard Voltage (2)
Rev. F - 15 February, 2001
72
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