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URL: http://www.princeton.com.tw
Dot Character VFD Controller/Driver IC
PT6314
SWITCHING TIMING
TTLH1, 2
TTHL
90%
90%
SGn, GRn
10%
10%
TIMING 1 REQUIREMENTS
(Unless otherwise specified, Ta=-40 to +85℃)
M68 Interface Parallel Data Transfer: Write (VDD1=5.0V 10%)
Parameter
Enable cycle time
Enable “H” pulse width
Enable ”L” pulse width
RS, R/W - E setup time
Symbol
tCYCE
PWEH
PWEL
tAS
Condition
Min. Typ. Max. Unit
E↑ →
E↑
500
230
230
20
-
-
-
-
-
-
-
-
ns
ns
ns
ns
E
E
RS,R/W
→
E
↑
E
↓ → RS,R/W
Data
↓ → Data
RS, R/W - E hold time
Data setup time
tAH
tDS
tDH
10
80
10
-
-
-
-
-
-
-
-
ns
ns
ns
ns
→ E↓
E
Data hold time
Reset pulse width
tWRE
500
M68 Interface Parallel Data Transfer: Read (VDD1=5.0 10%)
Parameter
Enable cycle time
Enable “H” pulse width
Enable ”L” pulse width
RS, R/W - E setup time
Symbol
tCYCE
PWEH
PWEL
tAS
Condition
Min. Typ. Max. Unit
E↑ →
E↑
500
230
230
20
-
-
-
-
-
-
-
-
ns
ns
ns
ns
E
E
RS,R/W
→
E
↑
E
↓ → RS,R/W
RS, R/W - E hold time
Data delay time
tAH
tDD
tDHR
10
-
5
-
-
-
-
ns
E↑ → Data
↓ → Data
160 ns
ns
E
Data hold time
-
PT6314 V1.3
- 35 -
March, 2006
PTC [ PRINCETON TECHNOLOGY CORP ]
