Universal Peripheral Interface User's Manual
UPI-C42/UPI-L42
ABSOLUTE MAXIMUM RATINGS*
Ambient Temperature Under Bias ÀÀÀÀ0
§
Cto
a
70
§
C
Storage Temperature ÀÀÀÀÀÀÀÀÀÀ
b
65
§
Cto
a
150
§
C
Voltage on Any Pin with
Respect to GroundÀÀÀÀÀÀÀÀÀÀÀÀÀÀ
b
0.5V to
a
7V
Power Dissipation ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ1.5 W
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.
DC CHARACTERISTICS T
A
e
0
§
Cto
a
70
§
C, V
CC
e
V
DD
ea
5V
g
10%;
a
3.3V
g
10% UPI-L42
Symbol Parameter
UPI-C42 UPI-L42
Units Notes
Min Max Min Max
V
IL
Input Low Voltage
b
0.5 0.8
b
0.3
a
0.8 V All Pins
V
IH
Input High Voltage 2.0 V
CC
2.0 V
CC
a
0.3 V
(Except XTAL2, RESET)
V
IH1
Input High Voltage 3.5 V
CC
2.0 V
CC
a
0.3 V
(XTAL2, RESET)
V
OL
Output Low Voltage (D
0
–D
7
) 0.45 0.45 V I
OL
e
2.0 mA UPI-C42
I
OL
e
1.3 mA UPI-L42
V
OL1
Output Low Voltage 0.45 0.45 V I
OL
e
1.6 mA UPI-C42
(P
10
P
17
,P
20
P
27
, Sync) I
OL
e
1 mA UPI-L42
V
OL2
Output Low Voltage (PROG) 0.45 0.45 V I
OL
e
1.0 mA UPI-C42
I
OL
e
0.7 mA UPI-L42
V
OH
Output High Voltage (D
0
–D
7
) 2.4 2.4 V I
OH
eb
400 mA UPI-C42
I
OH
eb
260 mA UPI-L42
V
OH1
Output High Voltage 2.4 2.4 I
OH
eb
50 mA UPI-C42
(All Other Outputs) I
OH
eb
25 mA UPI-L42
I
IL
Input Leakage Current
g
10
g
10 mAV
SS
s
V
IN
s
V
CC
(T
0
,T
1
, RD, WR, CS, A
0
, EA)
I
OFL
Output Leakage Current
g
10
g
10 mAV
SS
a
0.45
s
V
OUT
s
V
CC
(D
0
–D
7
, High Z State)
I
LI
Low Input Load Current
b
50
b
250
b
35
b
175 mA Port Pins
(P
10
P
17
,P
20
P
27
) Min V
IN
e
2.4V
Max V
IN
e
0.45V
I
LI1
Low Input Load Current
b
40
b
40 mAV
IN
s
V
IL
(RESET, SS)
I
HI
Port Sink Current
5.0 mA
V
CC
e
3.0V
(P
10
P
17
,P
20
P
27
)V
IH
e
5.0V
I
DD
V
DD
Supply Current 4 2.5 mA
15