TS83C51RA20 데이터 시트보기 (PDF) - Intel
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TS83C51RA20 Datasheet PDF : 20 Pages
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8XC51RA RB RC
DC CHARACTERISTICS (Over Operating Conditions) (Continued)
All parameter values apply to all devices unless otherwise indicated
Symbol
Parameter
Min
Typ
(Note 4)
Max
Unit Test Conditions
VOH1
VOH2
IIL
ILI
ITL
Output High Voltage
(Port 0 in External Bus Mode)
Output High Voltage
(RST)
Logical 0 Input Current
(Ports 1 2 and 3)
Input leakage Current (Port 0)
Logical 1 to 0 Transition Current
(Ports 1 2 and 3)
Commercial
Express
VCCb0 3
VCCb0 7
VCCb1 5
0 5 VCC
0 75 VCC
0 9 VCC
b50
g10
V IOH e b200 mA
V IOH e b3 2 mA
V IOH e b7 0 mA
V IOH e b800 mA
V IOH e b300 mA
V IOH e b80 mA
mA VIN e 0 45V
mA VIN e VIL or VIH
b675 mA VIN e 2V
b775 mA
RRST RST Pulldown Resistor
40
225 KX
CIO
Pin Capacitance
10
pF
1 MHz 25 C
ICC
Power Supply Current
Active Mode
at 12 MHz (Figure 5)
at 16 MHz
at 20 MHz
at 24 MHz
Idle Mode
at 12 MHz (Figure 5)
at 16 MHz
at 20 MHz
at 24 MHz
Power Down Mode
(Note 3)
15
30
mA
38
mA
47
mA
56
mA
5
7 5 mA
9 5 mA
11 5 mA
13 5 mA
5
75
mA
NOTES
1 Capacitive loading on Ports 0 and 2 may cause noise pulses above 0 4V to be superimposed on the VOLs of ALE and
Ports 1 2 and 3 The noise is due to external bus capacitance discharging into the Port 0 and Port 2 pins when these pins
change from 1 to 0 In applications where capacitive loading exceeds 100 pF the noise pulses on these signals may exceed
0 8V It may be desirable to qualify ALE or other signals with a Schmitt Triggers or CMOS-level input logic
2 Capacitive loading on Ports 0 and 2 cause the VOH on ALE and PSEN to drop below the 0 9 VCC specification when the
address lines are stabilizing
3 See Figures 6 – 9 for test conditions Minimum VCC for Power Down is 2V
4 Typicals are based on a limited number of samples and are not guaranteed The values listed are at room temperature
and 5V
5 Under steady state (non-transient) conditions IOL must be externally limited as follows
Maximum IOL per port pin
10mA
Maximum IOL per 8-bit port
Port 0 26 mA
Ports 1 2 and 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 current greater
than the listed test conditions
9
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