TP6312
1/4 TO 1/11-DUTY VFD CONTROLLER/DRIVER
Switching Characteristics (Ta = -20°C to +70°C, VDD = 4.5V to 5.5V, VEE = -30V)
Parameter
Oscillation Frequency
Symbol
fOSC
tPLZ
tPZL
tTZH1
Min
350
Typ.
500
Max.
650
300
100
2
Unit
kHz
ns
ns
µs
Test Conditions
R = 56kΩ
CLK ⇒ DOUT
Propagation Delay Time
Rise Time
CL = 15pF,RL = 10kΩ
Seg1 to Seg11
Grid1 to Grid6
CL = 300
PF
Seg12/Grid11
to
tTZH2
0.5
µs
Seg16/Grid7
Fall Time
Maximum Clock Frequency
Input Capacitance
tTHZ
fmax
C1
120
15
CL = 300 pF, Segn, Gridn
Duty = 50%
µs
MHz
pF
1
Timing Conditions (Ta = -20°C to +70°C, Vdd = 4.5V to 5.5V)
Parameter
Symbol
PWCLK
PWSTB
tSETUP
tHOLD
tCLK-STB
Min
400
1
100
100
1
Typ.
Max.
Unit
ns
µs
ns
ns
µs
µs
Test Conditions
Clock Pulse Width
Strobe Pulse Width
Data Setup Time
Data Hold Time
CLK ↑→ STB ↑
CLK ↑→ CLK ↓
Clock-Strobe Time
Wait Time
tWAIT
1
Switching Characteristic Waveform
PW STB
tCLK-STB
PW CLK
PW CLK
t
SETUP
t
hold
t
PZL
t
PZL
tTHZ
t
THZ
90%
10%
Version 1.1
Page 6 of 9
http://www.topro.com.tw
September 2003
ETC [ ETC ]
