CPC5601 Datasheet, PDF (13/14 Pages) Clare, Inc. – Auxiliary Programmable Driver IC

• All bits must be set in each programming sequence,
even to change just one of the outputs.
• Data is placed in least-significant bit (output 1) first.
• After setting all the bits, take the input low. In the
absence of low-to-high transitions on the input, the
internal CPC5601 clock is held high, preventing any
output changes.
• The CPC5601 does not employ a shift register load
function. As new data is shifted into the flip-flops, the
outputs (starting with b1) change throughout the
data input sequence.
3.3 Programming Example
This programming example sets the following
CPC5601 output state, suitable for a European DAA:
CPC5601
3.3.1 LITELINK III
b1 (LSB)
off
b2 b3 b4 b5
off on off on
b6 (MSB)
off
3.3.2 LITELINK II
b1 (LSB)
off
b2 b3 b4 b5
off on on on
b6 (MSB)
off
1. Hold the input low for 50 µS.
2. Set the input high for 50 µS to trigger the timer.
3. Set the input low for 150 µS to set output b1 to
off.
4. Repeat the steps as shown in the programming
waveform below to program all six outputs to the
desired pattern.
Figure 8. LITELINK III European Programming Sample Input Waveform
timer
t0
trigger
timer
trigger
timer
trigger
timer
trigger
setup
setup
setup
setup
setup
bit 1
set off
bit 2
set off
bit 3
set on
bit 4
set off
timer
trigger
setup
bit 5
set on
timer
trigger
bit 6
set off
50µS/div.
Figure 9. LITELINK II European Programming Sample Input Waveform
timer
t0
trigger
timer
trigger
timer
trigger
timer
trigger
setup
setup
setup
setup
setup
bit 1
set off
bit 2
set off
bit 3
set on
bit 4
set on
timer
trigger
setup
bit 5
set on
timer
trigger
bit 6
set off
50µS/div.
4. Regulatory Information
CPC5601 can be used to build products that comply
with the requirements of TIA/EIA/IS-968 (formerly
FCC part 68), FCC part 15B, TBR-21, EN60950,
UL1950, EN55022B, IEC950/IEC60950, CISPR22B,
EN55024, and many other standards. CPC5601 com-
plies with the requirements of UL1577. CPC5601 pro-
vides supplementary isolation. Metallic surge
requirements are met through the inclusion of a Sidac-
tor in the application circuit. Longitudinal surge protec-
tion is provided by CPC5601’s optical-across-the-
R3.0
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