PCA9620H/Q900/1,51 NXP Semiconductors, PCA9620H/Q900/1,51 Datasheet - Page 45

• Manufacturer Part Number: PCA9620H/Q900/1,51
• Description: LCD Drivers 480 SEGMENT LCD SEGMENT DRIVER
• Manufacturer: NXP Semiconductors

Specifications of PCA9620H/Q900/1,51

• Number Of Segments: 60
• Maximum Clock Frequency: 14500 Hz
• Operating Supply Voltage: 2.5 V to 5.5 V
• Maximum Power Dissipation: 400 mW
• Maximum Operating Temperature: + 105 C
• Package / Case: LQFP-80
• Maximum Supply Current: 200 uA
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935291899518

NXP Semiconductors
PCA9620
Product data sheet
7.9.1.5 RAM filling in 1:8 multiplex drive mode
The remaining bits are wrapped up into the next column. In order to fill the whole RAM
addresses 45 bytes need to be sent to the PCA9620. After the last byte sent the data
pointer is wrapped around to column 0 to start a possible RAM content update (see
Figure
the bits in the byte will be written correctly.
In the 1:8 multiplex drive mode the eight transmitted data bits are placed into eight rows of
one display RAM column (see
Fig 37. Display RAM filling order in 1:6 multiplex drive mode
Fig 38. Data pointer wrap around in 1:6 multiplex drive mode
display RAM rows/
backplane outputs
(BP)
38). Even if a data byte is transmitted during the wrapping of the data pointer, all
rows
data pointer
incrementation
All information provided in this document is subject to legal disclaimers.
display RAM
data pointer
0
1
2
3
4
5
a7
a6
a5
a4
a3
a2
0
Rev. 1 — 9 December 2010
a1
a0
b7
b6
b5
b4
1
b3
b2
b1
b0
c7
c6
2
0
1
2
3
4
5
c5
c4
c3
c2
c1
c0
3
b3
b2
b1
b0
c7
c6
Figure
0
4
display RAM columns/segment outputs (S)
c5
c4
c3
c2
c1
c0
1
5
2
6
39).
3
7
4
Universal LCD driver for low multiplex rates
columns
5
wrap around
6
55 56 57 58 59
7
55 56 57 58 59
013aaa290
MSB
a7
b7
c7
a7
a6
a5
a4
a3
a2
a6
b6
c6
PCA9620
transmitted data bytes
a1
a0
b7
b6
b5
b4
© NXP B.V. 2010. All rights reserved.
a5
b5
c5
a4
b4
c4
a3
b3
c3
a2
b2
c2
013aaa266
a1
b1
c1
45 of 71
LSB
a0
b0
c0