點晶科技股份有限公司
SILICON TOUCH TECHNOLOGY INC.
Switching Characteristics (Ta = 25 °C unless otherwise noted)
DM114、DM115
DM114
CHARACTERISTIC
Propagation ENABLE-OUTn
Delay Time
(“L” to “H”) CLK-SOUT
Propagation ENABLE-OUTn
Delay Time
(“H” to “L”) CLK-SOUT
Output Current Rise Time
Output Current Fall Time
SYMBOL
tpLH
tpHL
tor
tof
CONDITION
VDD=5.0V
VIH=VDD
VIL=GND
REXT=210Ω
VL=5.0V
RL=47Ω
CL=15pF
MIN.
⎯
⎯
⎯
⎯
⎯
⎯
TYP.
40
16
70
16
250
30
MAX.
80
20
140
20
400
50
UNIT
ns
ns
ns
ns
DM115
CHARACTERISTIC
Propagation ENABLE-OUTn
Delay Time
(“L” to “H”) CLK-SOUT
Propagation ENABLE-OUTn
Delay Time
(“H” to “L”) CLK-SOUT
Output Current Rise Time
Output Current Fall Time
SYMBOL
tpLH
tpHL
tor
tof
CONDITION
VDD=5.0V
VIH=VDD
VIL=GND
REXT=630Ω
VL=5.0V
RL=150Ω
CL=15pF
MIN.
⎯
⎯
⎯
⎯
⎯
⎯
TYP.
40
16
70
16
10
30
MAX.
80
20
140
20
15
50
UNIT
ns
ns
ns
ns
Note: (Delay between outputs)
The DM114、DM115 also incorporated the delay unit between outputs. The delay time is 4 ns(typ.), out7 has no
delay, out5 has 4 ns delay, out 3 has 8 ns delay, and then out 1, out 0, out 2, out 4, out6. The delay is to prevent large
current impulse.
8-BIT CONSTANT CURRENT LED DRIVERS with 3.3V~5V supply voltage
Preliminary
Version:A.002
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