PCF8562TT/2,118 NXP Semiconductors, PCF8562TT/2,118 Datasheet - Page 18

• Manufacturer Part Number: PCF8562TT/2,118
• Description: IC LCD DRIVER 32/128SEG 48-TSSOP
• Manufacturer: NXP Semiconductors

Specifications of PCF8562TT/2,118

• Package / Case: 48-TSSOP
• Display Type: LCD
• Configuration: 7 Segment + DP, 14 Segment (32 Segment)
• Interface: I²C
• Current - Supply: 32µA
• Voltage - Supply: 1.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Number Of Digits: 16
• Number Of Segments: 32
• Maximum Clock Frequency: 2640 Hz
• Operating Supply Voltage: 1.8 V to 5.5 V
• Maximum Power Dissipation: 400 mW
• Maximum Operating Temperature: + 85 C
• Attached Touch Screen: No
• Maximum Supply Current: 20 uA
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: OM6292 - DEMO BOARD PCA2125 RTCOM10088 - KIT FOR LCD DEMO LPC900622-1003 - KIT FOR LCD DEMO
• Digits Or Characters: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 568-2029-2; PCF8562TT/2,518; PCF8562TT/2-T

NXP Semiconductors
PCF8562_5
Product data sheet
7.14 Input bank selector
7.15 Blinker
the contents of rows 2 and 3 may be selected instead of rows 0 and 1. This gives the
provision for preparing display information in an alternative bank and to be able to switch
to it once it is assembled.
The input bank selector loads display data into the display RAM in accordance with the
selected LCD drive configuration.
The bank-select command (see
static drive mode or in rows 2 and 3 in 1:2 mode. The input bank selector functions are
independent of the output bank selector.
The PCF8562 has a very versatile display blinking capability. The whole display can blink
at a frequency selected by the blink-select command (see
is a fraction of the clock frequency; the ratio between the clock frequency and blink
frequency depends on the blink mode selected (see
An additional feature allows an arbitrary selection of LCD segments to blink in the static
and 1:2 drive modes. This is implemented without any communication overheads by the
output bank selector which alternates the displayed data between the data in the display
RAM bank and the data in an alternative RAM bank at the blink frequency. This mode can
also be implemented by the blink-select command (see
In the 1:3 and 1:4 drive modes, where no alternative RAM bank is available, groups of
LCD segments can blink selectively by changing the display RAM data at fixed time
intervals.
The entire display can blink at a frequency other than the nominal blink frequency by
sequentially resetting and setting the display enable bit E at the required rate using the
mode-set command (see
Table 6.
[1]
Blink mode
off
1
2
3
Blink modes 1, 2 and 3 and the nominal blink frequencies 0.5 Hz, 1 Hz and 2 Hz correspond to an oscillator
frequency (f
Blinking frequencies
clk
) of 1536 Hz (see
All information provided in this document is subject to legal disclaimers.
Rev. 05 — 19 May 2010
Section
Normal operating mode ratio
-
--------- -
768
------------ -
1536
------------ -
3072
f
f
f
clk
clk
clk
Section
[1]
Section
7.17).
11).
7.17) can be used to load display data in row 2 in
Universal LCD driver for low multiplex rates
Table
Section
Table
6).
Nominal blink frequency
blinking off
2 Hz
1 Hz
0.5 Hz
13). Each blink frequency
7.17).
PCF8562
© NXP B.V. 2010. All rights reserved.
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