Datasheet
7
Write Cycle Timing Diagram
AC Timing Characteristics Over Temperature Range (-45°C to +85°C)
4.5 V < V
DD
< 5.5 V, unless otherwise specied
Symbol Description 25°C Typ. Min.
[1]
Units
F
OSC
Oscillator Frequency 57 28 kHz
F
RF
[2]
Display Refresh Rate 256 128 Hz
F
FL
[3]
Character Flash Rate 2 1 Hz
t
ST
[4]
Self Test Cycle Time 4.6 9.2 sec
Notes:
1. Worst case values occur at an IC junction temperature of 150°C.
2. F
RF
= F
OSC
/224.
3. F
FL
= F
OSC
/28,672.
4. t
ST
= 262,144/F
OSC
.
1
9
8
6
32
CE
7
10
4 2
5
A
0
-A
4
FL
D
0
-D
7
WR
INPUT PULSE LEVELS: 0.6 V to 2.4 V