AT80C51RA2-3CSCV View Datasheet(PDF) - International Rectifier
Part Name
Description
MFG CO.
'AT80C51RA2-3CSCV' PDF : 85 Pages View PDF
11.4 DC Parameters for Low Voltage
TA = 0°C to +70°C; VSS = 0 V; VCC = 2.7 V to 5.5 V ± 10%; F = 0 to 30 MHz.
TA = -40°C to +85°C; VSS = 0 V; VCC = 2.7 V to 5.5 V ± 10%; F = 0 to 30 MHz.
Table 11-2. DC Parameters for Low Voltage
Symbol Parameter
Min
Typ
Max
Unit
Test Conditions
VIL
VIH
VIH1
VOL
VOL1
VOH
VOH1
IIL
ILI
ITL
RRST
CIO
Input Low Voltage
Input High Voltage except XTAL1, RST
Input High Voltage, XTAL1, RST
Output Low Voltage, ports 1, 2, 3, 4, 5 (6)
Output Low Voltage, port 0, ALE, PSEN (6)
Output High Voltage, ports 1, 2, 3, 4, 5
Output High Voltage, port 0, ALE, PSEN
Logical 0 Input Current ports 1, 2, 3, 4, 5
Input Leakage Current
Logical 1 to 0 Transition Current, ports 1, 2, 3, 4,
5
RST Pulldown Resistor
-0.5
0.2 VCC + 0.9
0.7 VCC
0.9 VCC
0.9 VCC
50
Capacitance of I/O Buffer
90 (5)
0.2 VCC - 0.1
VCC + 0.5
VCC + 0.5
0.45
0.45
-50
±10
-650
200
10
V
V
V
V
IOL = 0.8 mA(4)
V
IOL = 1.6 mA(4)
V IOH = -10 μA
V IOH = -40 μA
μA Vin = 0.45 V
μA 0.45 V < Vin < VCC
μA Vin = 2.0 V
kΩ
pF
Fc = 1 MHz
TA = 25°C
IPD
Power-down Current
20 (5)
10 (5)
50
30
μA
VCC = 2.0 V to 5.5 V(3)
VCC = 2.0 V to 3.3 V(3)
IPD
Power-down Current (Only for TS87C51RD2
S287-xxx Very Low power)
2 (5)
15
μA 2.0 V < VCC < 3.6 V(3)
ICC
under
RESET
Power Supply Current Maximum values, X1
mode: (7)
1 + 0.2 Freq
(MHz)
@12MHz 3.4
@16MHz 4.2
mA VCC = 3.3 V(1)
ICC
Power Supply Current Maximum values, X1
operating mode: (7)
1 + 0.3 Freq
(MHz)
@12MHz 4.6
@16MHz 5.8
mA VCC = 3.3 V(8)
ICC
Power Supply Current Maximum values, X1
idle
mode: (7)
0.15 Freq
(MHz) + 0.2
@12MHz 2
@16MHz 2.6
mA VCC = 3.3 V(2)
Notes:
1. ICC under reset is measured with all output pins disconnected; XTAL1 driven with TCLCH, TCHCL = 5 ns (see Figure 11-5.), VIL
= VSS + 0.5 V,
VIH = VCC - 0.5V; XTAL2 N.C.; EA = RST = Port 0 = VCC. ICC would be slightly higher if a crystal oscillator used..
2. Idle ICC is measured with all output pins disconnected; XTAL1 driven with TCLCH, TCHCL = 5 ns, VIL = VSS + 0.5 V, VIH = VCC -
0.5 V; XTAL2 N.C; Port 0 = VCC; EA = RST = VSS (see Figure 11-3.).
3. Power-down ICC is measured with all output pins disconnected; EA = VSS, PORT 0 = VCC; XTAL2 NC.; RST = VSS (see Fig-
ure 11-4.).
60 AT/TS8xC51Rx2
4188E–8051–08/06
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