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C541U Datasheet, PDF (45/63 Pages) Siemens Semiconductor Group – 8 BIT CMOS MICROCONTROLLER
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C541U
DC Characteristics
(Operating Conditions apply)
Parameter
Symbol
Input low voltage (except EA,
VIL
RESET)
Input low voltage (EA)
VIL1
Input low voltage (RESET)
VIL2
Input high voltage (except XTAL1, VIH
RESET and EA)
Input high voltage to XTAL1
VIH1
Input high voltage to RESET and VIH2
EA
Output low voltage
Ports 1, 2, 3
VOL
P1.0, P1.1, P3.0
Output low voltage (ALE, PSEN) VOL1
Output low voltage (Port 0)
VOL2
Output high voltage (ports 1, 2, 3) VOH
Output high voltage (port 0 in
VOH2
external bus mode, ALE, PSEN)
Logic 0 input current (ports 1, 2, 3) IIL
Logical 1-to-0 transition current ITL
(ports 1, 2, 3)
Input leakage current (port 0, EA) ILI
Pin capacitance
CIO
Overload current
IOV
Programming voltage
VPP
Notes see next page
Limit Values
min.
max.
– 0.5
0.2 VDD –
0.1
– 0.5
0.2 VDD –
0.3
– 0.5
0.2 VDD +
0.1
0.2 VDD + VDD + 0.5
0.9
0.7 VDD
0.6 VDD
VDD + 0.5
VDD + 0.5
–
–
–
–
2.4
0.9 VDD
2.4
0.9 VDD
– 10
– 65
–
–
–
10.9
0.45
0.45
0.45
0.6
–
–
–
–
– 60
– 650
±1
10
±5
12.1
Unit Test Condition
V–
V–
V–
V–
V–
V–
V
IOL = 1.6 mA 1)
V
IOL = 10 mA 1)
V
IOL = 3.2 mA 1)
V
IOL = 3.2 mA 1)
V
IOH = – 80 µA,
IOH = – 10 µA
V
IOH = – 800 µA
IOH = – 80 µA 2)
µA VIN = 0.45 V
µA VIN = 2 V
µA 0.45 < VIN < VDD
pF fc = 1 MHz,
TA = 25 °C 7)
mA
6) 7)
V 11.5 V ± 5%
Semiconductor Group
43
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