pcf85132 NXP Semiconductors, pcf85132 Datasheet - Page 28
pcf85132
Manufacturer Part Number
pcf85132
Description
Pcf85132 Lcd Driver For Low Multiplex Rates
Manufacturer
NXP Semiconductors
Datasheet
1.PCF85132.pdf
(54 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
pcf85132U/2DA/1
Manufacturer:
ON
Quantity:
20 000
Part Number:
pcf85132U/2DA/1
Manufacturer:
NXP/恩智浦
Quantity:
20 000
NXP Semiconductors
PCF85132
Product data sheet
Table 15.
[1]
[2]
[3]
Table 16.
[1]
[2]
Bit
7 to 3
2
1 to 0
Bit
7 to 4
3 to 0
Power-on and reset value.
Normal blinking is assumed when the LCD multiplex drive modes 1:3 or 1:4 are selected.
Alternate RAM bank blinking does not apply in 1:3 and 1:4 multiplex drive modes.
Nominal frame frequency calculated for an internal operating frequency of 1.800 kHz.
Power-on and reset value.
Symbol
-
AB
BF[1:0]
Symbol
F[2:0]
-
Blink-select command bit description
Frame-frequency-prescaler command bit description
All information provided in this document is subject to legal disclaimers.
11110
Value
0
1
00
01
10
11
Value
11101
000
001
010
011
100
101
110
111
Rev. 1 — 23 November 2010
[1]
[1]
[2]
Description
fixed value
blink mode selection
blink frequency selection
Description
Nominal frame frequency
fixed value
defines the division factor for the frame frequency f
60 Hz
65 Hz
70 Hz
75 Hz
80 Hz
85 Hz
90 Hz
75 Hz
normal blinking
alternate RAM bank blinking
off
1
2
3
[2]
LCD driver for low multiplex rates
[1]
[3]
Equation
f
f
f
f
f
f
f
f
fr
fr
fr
fr
fr
fr
fr
fr
=
=
=
=
=
=
=
=
64
----- -
80
64
----- -
74
64
----- -
68
f
------- -
64
----- -
60
64
----- -
56
64
----- -
53
f
------- -
PCF85132
24
24
clk
clk
×
×
×
×
×
×
© NXP B.V. 2010. All rights reserved.
f
------- -
f
------- -
f
------- -
f
------- -
f
------- -
f
------- -
24
24
24
24
24
24
clk
clk
clk
clk
clk
clk
fr
28 of 54