PCA9620H NXP [NXP Semiconductors], PCA9620H Datasheet - Page 6

• Manufacturer Part Number: PCA9620H
• Description: Universal LCD driver for low multiplex rates
• Manufacturer: NXP [NXP Semiconductors]

NXP Semiconductors
PCA9620
Product data sheet
7.1.2 Command: OTP-refresh
7.1.3 Command: oscillator-ctrl
Table 5.
During production and testing of the device, each IC is calibrated in order to achieve the
specified accuracy of V
calibration is performed on EPROM cells called One Time Programmable (OTP) cells.
These cells are being read by the device at power-on, after a reset, and every time when
the initialize command or the OTP-refresh command is sent. This command will take
approximately 10 ms to finish.
Table 6.
The oscillator-ctrl command switches between internal and external oscillator and enables
or disables pin CLK.
Table 7.
For further information, see
[1]
Bit
7 to 0
Bit
7 to 0
Bit
7 to 2
1
0
Default value.
Symbol
-
Symbol
-
Symbol
-
COE
OSC
Initialize - initialize command bit description
OTP-refresh - OTP-refresh command bit description
Oscillator-ctrl - oscillator control command bit description
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 9 December 2010
LCD
Section 7.5 on page
, the frame frequency, and the temperature measurement. This
Value
00111010
Value
11010000
Value
110011
0
1
0
1
[1]
[1]
Universal LCD driver for low multiplex rates
38.
Description
fixed value
Description
fixed value
Description
fixed value
control pin CLK
oscillator source
clock signal not available on pin CLK;
pin CLK is in 3-state and may be left floating
clock signal available on pin CLK
internal oscillator running
external oscillator used;
pin CLK becomes an input
PCA9620
© NXP B.V. 2010. All rights reserved.
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