IS89C52 データシートの表示（PDF） - Integrated Silicon Solution
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IS89C52 Datasheet PDF : 50 Pages
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IS89C52
ISSI ®
DC CHARACTERISTICS
(Over Operating Range; GND = 0V)
Symbol
VIL
VIL1
VIH
VIH1
VSCH+
VSCH–
VOL(1)
VOL1(1)
VOH
VOH1
IIL
ILI
ITL
RRST
Parameter
Test conditions
Input low voltage (All except EA)
Input low voltage (EA)
Input high voltage
(All except XTAL 1, RST)
Input high voltage (XTAL 1)
RST positive schmitt-trigger
threshold voltage
RST negative schmitt-trigger
threshold voltage
Output low voltage
Iol = 100 µA
(Ports 1, 2, 3)
IOL = 1.6 mA
IOL = 3.5 mA
Output low voltage
(Port 0, ALE, PSEN)
IOL = 200 µA
IOL = 3.2 mA
IOL = 7.0 mA
Output high voltage
(Ports 1, 2, 3, ALE, PSEN)
IOH = –10 µA
Vcc = 4.5V-5.5V
IOL = –25 µA
IOL = –60 µA
Output high voltage
(Port 0, ALE, PSEN)
IOH = –80 µA
Vcc = 4.5V-5.5V
IOH = –300 µA
IOH = –800 µA
Logical 0 input current (Ports 1, 2, 3) VIN = 0.45V
Input leakage current (Port 0)
0.45V < VIN < Vcc
Logical 1-to-0 transition current
(Ports 1, 2, 3)
VIN = 2.0V
RST pulldown resister
Min
–0.5
–0.5
0.2Vcc + 0.9
0.7Vcc
0.7Vcc
0
—
—
—
—
—
—
0.9Vcc
0.75Vcc
2.4
0.9Vcc
0.75Vcc
2.4
—
–10
—
50
Note:
1. Under steady state (non-transient) conditions, IOL must be externally limited as follows:
Maximum IOL per port pin: 10 mA
Maximum IOL per 8-bit port
Port 0: 26 mA
Ports 1, 2, 3: 15 mA
Maximum total IOL for all output pins: 71 mA
If IOL exceeds the test condition, VOL may exceed the related specification.
Pins are not guaranteed to sink greater than the listed test conditions.
Max
0.2Vcc – 0.1
0.2Vcc – 0.3
Vcc + 0.5
Vcc + 0.5
Vcc + 0.5
0.2Vcc
0.3
0.45
1.0
0.3
0.45
1.0
—
—
—
—
—
—
–80
+10
–650
300
Unit
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
µA
µA
µA
KΩ
44
Integrated Silicon Solution, Inc. — 1-800-379-4774
MC013-1C
11/21/98
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