82C55A Datasheet, PDF (18/23 Pages) Intel Corporation – CHMOS PROGRAMMABLE PERIPHERAL INTERFACE

82C55A
ABSOLUTE MAXIMUM RATINGS
Ambient Temperature Under Bias 0 C to ^a 70 C
Storage Temperature
b _{65 C to} a _{150 C}
Supply Voltage
b _{0 5 to} a _{8 0V}
Operating Voltage
a _{4V to} a _7V
Voltage on any Input
GND^b2V to ^a 6 5V
Voltage on any Output GND^b0 5V to V_CC ^a 0 5V
Power Dissipation
1 Watt
NOTICE This is a production data sheet The specifi-
cations are subject to change without notice
WARNING Stressing the device beyond the ‘‘Absolute
Maximum Ratings’’ may cause permanent damage
These are stress ratings only Operation beyond the
‘‘Operating Conditions’’ is not recommended and ex-
tended exposure beyond the ‘‘Operating Conditions’’
may affect device reliability
D C CHARACTERISTICS
T_A ^e 0 C to 70 C V_CC ^{e a}5V g10% GND ^e 0V (T_A ^{e b}40 C to ^a85 C for Extended Temperture)
Symbol
Parameter
Min
Max
Units
Test Conditions
V_IL
Input Low Voltage
V_IH
Input High Voltage
V_OL
Output Low Voltage
V_OH
Output High Voltage
I_IL
Input Leakage Current
b_{0 5}
08
20
V_CC
04
30
V_CC ^b 0 4
g1
V
V
V
I_OL ^e 2 5 mA
V
I_OH ^{e b}2 5 mA
V
I_OH ^{e b}100 mA
mA
V_IN ^e V_CC to 0V
(Note 1)
I_OFL
Output Float Leakage Current
g10
mA
V_IN ^e V_CC to 0V
(Note 2)
I_DAR
Darlington Drive Current
I_PHL
Port Hold Low Leakage Current
g2 5
a₅₀
(Note 4) mA Ports A B C
R_ext ^e 500X
V_ext ^e 1 7V
a₃₀₀
mA
V_OUT ^e 1 0V
Port A only
I_PHH
Port Hold High Leakage Current
b₅₀
b₃₀₀
mA
V_OUT ^e 3 0V
Ports A B C
I_PHLO
I_PHHO
I_CC
I_CCSB
Port Hold Low Overdrive Current
Port Hold High Overdrive Current
V_CC Supply Current
V_CC Supply Current-Standby
b₃₅₀
a₃₅₀
mA
V_OUT ^e 0 8V
mA
V_OUT ^e 3 0V
10
mA (Note 3)
10
mA
V_CC ^e 5 5V
V_IN ^e V_CC or GND
Port Conditions
If I P ^e Open High
O P ^e Open Only
With Data Bus ^e
High Low
CS ^e High
Reset ^e Low
Pure Inputs ^e
Low High
NOTES
1 Pins A₁ A₀ CS WR RD Reset
2 Data Bus Ports B C
3 Outputs open
4 Limit output current to 4 0 mA
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