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PCF8534AU/DA/1 bảng dữ liệu(PDF) 24 Page - NXP Semiconductors

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Giải thích chi tiết về linh kiện  Universal LCD driver for low multiplex rates
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PCF8534A_3
© NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 03 — 10 November 2008
24 of 44
NXP Semiconductors
PCF8534A
Universal LCD driver for low multiplex rates
[1]
Only normal blinking can be selected in multiplexer 1:3 or 1:4 drive modes.
8.4 Display controller
The display controller executes the commands identified by the command decoder. It
contains the status registers of the PCF8534A and coordinates their effects.
The controller also loads display data into the display RAM as required by the storage
order.
Table 14.
Blink select command bit description
See Section 7.15.
Bit
Symbol
Value
Description
7 to 3
-
1 1110
fixed value
2A
blink mode selection
0
normal blinking[1]
1
blinking by alternating display RAM banks
1 to 0
BF[1:0]
blink frequency selection
00
off
01
1
10
2
11
3



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