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AC Electrical Characteristics (Target Specs)
SX18AC/20AC/28AC (Datecode Axyywwxx, new revision); Operating Temperature 0 C <= Ta <= +70 C
(Commercial)
Note:Data in the Typical ( TYP ) column is at 5V, 25 C unless otherwise stated.
Internal RC Oscillator AC specs are still being characterized. Specification is 4MHz – 8% over commercial
temp (0 C- 70 C) range.
Symbol
Parameter
Min
Typ
Max
Units
Conditions
Fosc
External CLKIN Frequency
DC
-
4.0
10
24
50
32
1.0
MHz
MHz
MHz
MHz
KHz
MHz
RC
XT1
XT2
HS
LP1
LP2
Oscillator Frequency
DC
0.032
1.0
1.0
DC
0.032
-
4.0
10.0
24.0
50
32
1.0
MHz
MHz
MHz
MHz
KHz
MHz
RC
XT1
XT2
HS
LP1
LP2
Tosc
External CLKIN Period
250
100
41.7
20
31.25
1.0
-
-
ns
ns
ns
ns
s
s
RC
XT1
XT2
HS
LP1
LP2
Oscillator Period
250
100
41.7
20
31.25
1.0
-
-
31.25
1.0
1.0
-
31.25
ns
s
s
s
s
s
RC
XT1
XT2
HS
LP1
LP2
TosL, TosH
Clock in (OSC1) Low or High Time
50
8.0
2.0
-
-
ns
ns
s
XT1/XT2
HS
LP1/LP2
TosR, TosF
Clock in (OSC1) Rise or Fall Time
-
-
25
25
50
ns
ns
s
XT1/XT2
HS
LP1/LP2
