pca8576d NXP Semiconductors, pca8576d Datasheet - Page 33

• Manufacturer Part Number: pca8576d
• Description: Automotive 40 X 4 Lcd Segment Driver For Low Multiplex Rates Up To 1 4
• Manufacturer: NXP Semiconductors

NXP Semiconductors
13. Test information
PCA8576D
Product data sheet
13.1 Quality information
Table 21.
Assumption: BP2/S2, BP2/S5, BP2/S8 etc. are connected to elements on the display.
In the case described in
BP2/S8 etc. have to be connected to elements on the display. This can be achieved by a
combination of writing and rewriting the RAM like follows:
Depending on the method of writing to the RAM (standard or continuous filling by
rewriting), some elements remain unused or can be used, but it has to be considered in
the module layout process as well as in the driver software design.
This product has been qualified in accordance with the Automotive Electronics Council
(AEC) standard Q100 - Failure mechanism based stress test qualification for integrated
circuits, and is suitable for use in automotive applications.
Display RAM
bits (rows)/
backplane
outputs (BPn)
0
1
2
3
•
•
•
In the first write to the RAM, bits a7 to a0 are written.
In the second write, bits b7 to b0 are written, overwriting bits a1 and a0 with bits b7
and b6.
In the third write, bits c7 to c0 are written, overwriting bits b1 and b0 with bits c7 and
c6.
Continuos RAM filling by rewriting in 1:3 multiplex drive mode
All information provided in this document is subject to legal disclaimers.
Display RAM addresses (columns)/segment outputs (Sn)
0
a7
a6
a5
-
Automotive 40 x 4 LCD segment driver for low multiplex rates
1
a4
a3
a2
-
Table 21
Rev. 1 — 4 April 2011
2
a1/b7 b4
a0/b6 b3
b5
-
the RAM has to be written entirely and BP2/S2, BP2/S5,
3
b2
-
4
b1/c7 c4
b0/c6 c3
c5
-
5
c2
-
6
c1/d7 d4
c0/d6 d3
d5
-
7
d2
-
PCA8576D
8
d1/e7 e4
d0/e6 e3
e5
-
© NXP B.V. 2011. All rights reserved.
9
e2
-
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