82C54
ABSOLUTE MAXIMUM RATINGS*
Ambient Temperature Under Bias.ÀÀÀÀÀÀ0
§
Cto70
§
C
Storage Temperature ÀÀÀÀÀÀÀÀÀÀÀÀ
b
65
§
to
a
150
§
C
Supply Voltage ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ
b
0.5 to
a
8.0V
Operating Voltage ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ
a
4V to
a
7V
Voltage on any InputÀÀÀÀÀÀÀÀÀÀGND
b
2V to
a
6.5V
Voltage on any Output ÀÀGND
b
0.5V to V
CC
a
0.5V
Power Dissipation ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ1 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
§
Cto70
§
C, V
CC
e
5V
g
10%, GND
e
0V) (T
A
eb
40
§
Cto
a
85
§
C for Extended Temperature)
Symbol Parameter Min Max Units Test Conditions
V
IL
Input Low Voltage
b
0.5 0.8 V
V
IH
Input High Voltage 2.0 V
CC
a
0.5 V
V
OL
Output Low Voltage 0.4 V I
OL
e
2.5 mA
V
OH
Output High Voltage 3.0 V I
OH
eb
2.5 mA
V
CC
b
0.4 V I
OH
eb
100 mA
I
IL
Input Load Current
g
2.0 mAV
IN
e
V
CC
to 0V
I
OFL
Output Float Leakage Current
g
10 mAV
OUT
e
V
CC
to 0.0V
I
CC
V
CC
Supply Current 20 mA
Clk Freq
e
8MHz 82C54
10MHz 82C54-2
I
CCSB
V
CC
Supply Current-Standby 10 mA CLK Freq
e
DC
CS
e
V
CC
.
All Inputs/Data Bus V
CC
All Outputs Floating
I
CCSB1
V
CC
Supply Current-Standby 150 mA CLK Freq
e
DC
CS
e
V
CC
. All Other Inputs,
I/O Pins
e
V
GND
, Outputs Open
C
IN
Input Capacitance 10 pF f
c
e
1 MHz
C
I/O
I/O Capacitance 20 pF
Unmeasured pins
C
OUT
Output Capacitance 20 pF
returned to GND
(5)
A.C. CHARACTERISTICS
(T
A
e
0
§
Cto70
§
C, V
CC
e
5V
g
10%, GND
e
0V) (T
A
eb
40
§
Cto
a
85
§
C for Extended Temperature)
BUS PARAMETERS (Note 1)
READ CYCLE
Symbol Parameter
82C54-2
Units
Min Max
t
AR
Address Stable Before RD
v
30 ns
t
SR
CS Stable Before RD
v
0ns
t
RA
Address Hold Time After RD
u
0ns
t
RR
RD Pulse Width 95 ns
t
RD
Data Delay from RD
v
85 ns
t
AD
Data Delay from Address 185 ns
t
DF
RD
u
to Data Floating 5 65 ns
t
RV
Command Recovery Time 165 ns
NOTE:
1. AC timings measured at V
OH
e
2.0V, V
OL
e
0.8V.
15
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