tca62746 Marktech Optoelectronics, tca62746 Datasheet - Page 4

• Manufacturer Part Number: tca62746
• Description: 16-output Constant Current Led Driver With Output Open/short Detection
• Manufacturer: Marktech Optoelectronics

Truth Table
Timing Chart
Note 1:
Note 2:
Note1:
Note2:
OUT15
SCK
OUT0
OUT1
OUT
SOUT
SLAT
The latch circuit is a leveled-latch circuit. Please exercise precaution as it is not triggered-latch circuit.
Keep the SLAT pin is set to “L” to enable the latch circuit to hold data. In addition, when the SLAT pin is set
to “H” the latch circuit does not hold data. The data will instead pass onto output.
When the OE pin is set to “L” the OUT0 to OUT15 output pins will go ON and OFF in response to the
data. In addition, when the OE pin is set to “H” all the output pins will be forced OFF regardless of the data.
SCK
SIN
OE
When OUT0 to OUT15 output pins are set to "H" the respective output will be ON and when set to "L" the
respective output will be OFF.
“-“ is irrelevant to the truth table.
2
n = 0
SLAT
- *2
- *2
H
H
L
1
2
3
4
OE
H
L
L
L
L
5
6
7
8
Dn + 1
Dn + 2
Dn + 3
Dn + 3
SIN
Dn
9
4
10
11
12 13
OUT0 … OUT7 … OUT15 *1
Dn + 2 … Dn − 5 … Dn − 13
Dn + 2 … Dn − 5 … Dn − 13
Dn … Dn − 7 … Dn − 15
14
No Change
15
OFF
TCA62746AFG/AFNG
2007-05-22
Dn − 15
Dn − 14
Dn − 13
Dn − 13
Dn − 13
SOUT
H
L
H
L
H
L
H
L
ON
OFF
ON
OFF
ON
OFF
ON
OFF
H
L