tb62778fng Marktech Optoelectronics, tb62778fng Datasheet - Page 13

• Manufacturer Part Number: tb62778fng
• Description: 8-channel Constant-current Led Driver Of The 3.3-v And 5-v Power Supply Voltage Operation
• Manufacturer: Marktech Optoelectronics

Timing Waveforms
Note: The timing chart waveform may be simplified to explain a function and operation.
1. CLOCK, SERIAL-IN, SERIAL-OUT
2. CLOCK, SERIAL-IN, LATCH , ENABLE , OUTn
3. OUTn
4. Special Mode
Timing conditions must be taken care enough.
SERIAL-OUT
SERIAL-IN
SERIAL-IN
CLOCK
ENABLE
LATCH
LATCH
CLOCK
CLOCK
OUTn
OUTn
50%
50%
t
SETUP3
t
SETUP1
50%
50%
50%
t
HOLD3
t
HOLD1
t
wCLK
t
t
pHL1
wCLK
50%
t
50%
/
HOLD2
t
LH1
90%
of
50%
50%
t
10%
pLH
TENTATIVE
50%
/t
t
wLAT
pHL
t
pHL2
13
50%
t
SETUP2
10%
/
LH2
10%
50%
50%
90%
50%
90%
t
r
t
50%
or
t
pHL3
t
wENA
/
LH3
t
SETUP4
t
f
90%
50%
10%
50%
50%
t
HOLD4
t
wENA
50%
OFF
ON
50%
(Ver.0.0) 08-02-07
TB62778FNG
50%