PCF8576D
40 × 4 universal LCD driver for low multiplex rates
Rev. 15 — 12 February 2015
Product data sheet
1. General description
The PCF8576D is a peripheral device which interfaces to almost any Liquid Crystal
Display (LCD)
1
with low multiplex rates. It generates the drive signals for any static or
multiplexed LCD containing up to four backplanes and up to 40 segments. It can be easily
cascaded for larger LCD applications. The PCF8576D is compatible with most
microcontrollers and communicates via the two-line bidirectional I
2
C-bus. Communication
overheads are minimized by a display RAM with auto-incremented addressing, by
hardware subaddressing and by display memory switching (static and duplex drive
modes).
•
PCF8576DT/2 should not be used for new design-ins. Replacement part is
PCF85176T/1 for industrial applications
•
PCF8576DT/S400/2 should not be used for new design-ins. Replacement part is
PCA85176T/Q900/1 for automotive applications
For a selection of NXP LCD segment drivers, see
Table 30 on page 50.
2. Features and benefits
AEC-Q100 compliant (PCF8576DT/S400/2) for automotive applications
Single chip LCD controller and driver
Selectable backplane drive configuration: static or 2, 3, 4 backplane multiplexing
Selectable display bias configuration: static,
1
⁄
2
, or
1
⁄
3
Internal LCD bias generation with voltage-follower buffers
40 segment drives:
Up to 20 7-segment numeric characters
Up to 10 14-segment alphanumeric characters
Any graphics of up to 160 segments/elements
40
4-bit RAM for display data storage
Auto-incremented display data loading across device subaddress boundaries
Display memory bank switching in static and duplex drive modes
Versatile blinking modes
Independent supplies possible for LCD and logic voltages
Wide power supply range: from 1.8 V to 5.5 V
Wide logic LCD supply range:
From 2.5 V for low-threshold LCDs
Up to 6.5 V for high-threshold twisted nematic LCDs
1.
The definition of the abbreviations and acronyms used in this data sheet can be found in
Section 22.
NXP Semiconductors
PCF8576D
40 × 4 universal LCD driver for low multiplex rates
Low power consumption
400 kHz I
2
C-bus interface
May be cascaded for large LCD applications (up to 2560 segments/elements possible)
No external components required
Compatible with chip-on-glass and chip-on-board technology
Manufactured in silicon gate CMOS process
3. Ordering information
Table 1.
Ordering information
Package
Name
PCF8576DT/2
[1]
PCF8576DT/S400/2
[2]
PCF8576DU/DA/2
PCF8576DU/2DA/2
[1]
[2]
Product type number
Description
plastic thin shrink small outline package, 56 leads;
body width 6.1 mm
plastic thin shrink small outline package, 56 leads;
body width 6.1 mm
59 bonding pads
59 bumps
Version
SOT364-1
SOT364-1
PCF8576DU/DA
PCF8576DU/2DA
TSSOP56
TSSOP56
wire bond die
bare die
Not to be used for new designs. Replacement part is PCF85176T/1 for industrial applications.
Not to be used for new designs. Replacement part is PCA85176T/Q900/1 for automotive applications.
3.1 Ordering options
Table 2.
Ordering options
Orderable part number Sales item
(12NC)
PCF8576DT/2,118
PCF8576DT/S400/2,1
PCF8576DU/DA/2,026
PCF8576DU/2DA/2,02
935276166118
935287131118
935276239026
935276249026
Delivery form
tape and reel, 13 inch
tape and reel, 13 inch
chips in tray
chips in tray
IC
revision
2
2
2
2
Product type number
PCF8576DT/2
PCF8576DT/S400/2
PCF8576DU/DA/2
PCF8576DU/2DA/2
4. Marking
Table 3.
Marking codes
Marking code
PCF8576DT
PCF8576DT/S400
PC8576D-2
PC8576D-2
Product type number
PCF8576DT/2
PCF8576DT/S400/2
PCF8576DU/DA/2
PCF8576DU/2DA/2
PCF8576D
All information provided in this document is subject to legal disclaimers.
© NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet
Rev. 15 — 12 February 2015
2 of 59
NXP Semiconductors
PCF8576D
40 × 4 universal LCD driver for low multiplex rates
5. Block diagram
Fig 1.
Block diagram of PCF8576D
PCF8576D
All information provided in this document is subject to legal disclaimers.
© NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet
Rev. 15 — 12 February 2015
3 of 59
NXP Semiconductors
PCF8576D
40 × 4 universal LCD driver for low multiplex rates
6. Pinning information
6.1 Pinning
Top view. For mechanical details, see
Figure 25.
Fig 2.
Pinning diagram for PCF8576DT (TSSOP56)
PCF8576D
All information provided in this document is subject to legal disclaimers.
© NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet
Rev. 15 — 12 February 2015
4 of 59
NXP Semiconductors
PCF8576D
40 × 4 universal LCD driver for low multiplex rates
Viewed from active side. C1 and C2 are alignment marks. For mechanical details, see
Figure 26
and
Figure 27.
Fig 3.
Pinning diagram for PCF8576DU (bare die)
PCF8576D
All information provided in this document is subject to legal disclaimers.
© NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet
Rev. 15 — 12 February 2015
5 of 59
电子竞赛
