PT6314_10 Datasheet, PDF (32/42 Pages) Princeton Technology Corp – Dot Character VFD Controller/Driver IC

11. SWITCHING TIMING
PT6314
11.1 TIMING 1 REQUIREMENTS
(Unless otherwise specified, Ta=-40 to +85℃); M68 Interface Parallel Data Transfer: Write (VDD1=5.0V ±10%)
Parameter
Symbol
Condition
Min. Typ. Max. Unit
Enable cycle time
tCYCE E↑ → E↑
500
-
-
ns
Enable “H” pulse width
PWEH E
230
-
-
ns
Enable ”L” pulse width
PWEL E
230
-
-
ns
RS, R/W - E setup time
tAS
RS,R/W → E↑
20
-
-
ns
RS, R/W - E hold time
tAH
E↓ → RS,R/W
10
-
-
ns
Data setup time
tDS
Data → E↓
80
-
-
ns
Data hold time
tDH
E↓ → Data
10
-
-
ns
Reset pulse width
tWRE
500
-
-
ns
M68 Interface Parallel Data Transfer: Read (VDD1=5.0±10%)
Parameter
Symbol
Condition
Enable cycle time
tCYCE E↑ → E↑
Enable “H” pulse width
PWEH E
Enable ”L” pulse width
PWEL E
RS, R/W - E setup time
tAS
RS,R/W → E↑
RS, R/W - E hold time
tAH
E↓ → RS,R/W
Data delay time
tDD
E↑ → Data
Data hold time
tDHR E↓ → Data
Min. Typ. Max. Unit
500
-
-
ns
230
-
-
ns
230
-
-
ns
20
-
-
ns
10
-
-
ns
-
- 160 ns
5
-
-
ns
V1.5
32
October 2009