PCF8577CP NXP Semiconductors, PCF8577CP Datasheet - Page 9
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PCF8577CP
Manufacturer Part Number
PCF8577CP
Description
Manufacturer
NXP Semiconductors
Datasheet
1.PCF8577CP.pdf
(28 pages)
Specifications of PCF8577CP
Operating Supply Voltage (typ)
3.3/5V
Number Of Segments
64
Operating Temperature (min)
-40C
Operating Temperature (max)
85C
Operating Temperature Classification
Industrial
Package Type
PDIP
Pin Count
40
Mounting
Through Hole
Power Dissipation
500mW
Frequency (max)
100KHz
Operating Supply Voltage (min)
2.5V
Operating Supply Voltage (max)
6V
Lead Free Status / Rohs Status
Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PCF8577CP
Manufacturer:
ALTERA
Quantity:
370
Part Number:
PCF8577CP
Manufacturer:
PHILIPS/飞利浦
Quantity:
20 000
Part Number:
PCF8577CP/F3
Manufacturer:
NXP/恩智浦
Quantity:
20 000
Philips Semiconductors
6.10
The mapping between the eight segment registers and the segment outputs S1 to S32 is given in Tables 1 and 2.
Since only one register bit per segment is needed in the direct drive mode, the BANK bit allows swapping of display
information. If BANK is set to logic 0 even bytes (BANK A) are displayed; if BANK is set to logic 1 odd bytes (BANK B)
are displayed. BP1 is always used for the backplane output in the direct drive mode. In duplex mode even bytes
(BANK A) correspond to backplane 1 (BP1) and odd bytes (BANK B) correspond to backplane 2 (BP2).
Table 1 Segment byte-segment driver mapping in direct drive mode
Mapping example: bit 0 of register 7 controls the LCD segment S25 if BANK bit is a logic 1.
Table 2 Segment byte-segment driver mapping in duplex mode
Note
1. Where X = don’t care.
Mapping example: bit 7 of register 5 controls the LCD segment S24/BP2.
1998 Jul 30
MODE
MODE BANK
LCD direct/duplex driver with
I
2
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
C-bus interface
Display memory mapping
BANK
X
X
X
X
X
X
X
X
0
1
0
1
0
1
0
1
(1)
V
V
2
0
0
0
0
1
1
1
1
2
0
0
0
0
1
1
1
1
V
V
1
0
0
1
1
0
0
1
1
1
0
0
1
1
0
0
1
1
V
V
0
0
1
0
1
0
1
0
1
0
0
1
0
1
0
1
0
1
SEGMENT/
SEGMENT/
REGISTER
REGISTER
BIT/
BIT/
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
MSB
MSB
S16
S16
S24
S24
S32
S32
S16
S16
S24
S24
S32
S32
S8
S8
S8
S8
7
7
S15
S15
S23
S23
S31
S31
S15
S15
S23
S23
S31
S31
9
S7
S7
S7
S7
6
6
S14
S14
S22
S22
S30
S30
S14
S14
S22
S22
S30
S30
S6
S6
S6
S6
5
5
S13
S13
S21
S21
S29
S29
S13
S13
S21
S21
S29
S29
S5
S5
S5
S5
4
4
S12
S12
S20
S20
S28
S28
S12
S12
S20
S20
S28
S28
S4
S4
S4
S4
3
3
S19
S19
S27
S27
S11
S11
S19
S19
S27
S27
S11
S11
S3
S3
S3
S3
2
2
S10
S10
S18
S18
S26
S26
S10
S10
S18
S18
S26
S26
S2
S2
S2
S2
1
1
Product specification
PCF8577C
LSB
LSB
S17
S17
S25
S25
S17
S17
S25
S25
S1
S1
S9
S9
S1
S1
S9
S9
0
0
PLANE
PLANE
BACK-
BACK-
BP1
BP1
BP1
BP1
BP1
BP1
BP1
BP1
BP1
BP2
BP1
BP2
BP1
BP2
BP1
BP2