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NT7603
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Ver 0.5
DC Electrical Character (continued)
Symbol
Parameter
Min.
Typ.
Max.
Unit
Conditions
Applicable Pin
External Clock Operation
fCP
External Clock Operating
Frequency
250
540
700
KHz
tDUTY
External Clock Duty Cycle
45
50
55
%
tRCP
External Clock Rise Time
0.1
-
0.5
µs
tFCP
External Clock Fall Time
0.1
-
0.5
µs
Internal Clock Operation (Built-in RC Oscillator)
fOSC
Oscillator Frequency
380
540
700
KHz
Rf = 50K
Ω
(reference only)
VLCD1
VLCD2
LCD Driving Voltage
3.0
-
VDD
V
VDD - V5
AC Characteristics
Read Cycle (VDD = 5.0V, GND = 0V, TA = 25
°C)
Symbol
Parameter
Min.
Typ.
Max.
Unit
Conditions
tCYCE
Enable Cycle Time
500
-
-
ns
Figure 1
tWHE
Enable "H" Level Pulse Width
300
-
-
ns
Figure 1
tRE, tFE
Enable Rise/Fall Time
-
-
25
ns
Figure 1
tAS
RS, R/W Setup Time
60
1
-
-
ns
Figure 1
100
2
tAH
RS, R/W Address Hold Time
10
-
-
ns
Figure 1
tRD
Read Data Output Delay
-
-
190
ns
Figure 1
tDHR
Read Data Hold Time
20
-
-
ns
Figure 1