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PCF85176H/1,518

hotPCF85176H/1,518

PCF85176H/1,518

For Reference Only

Part Number PCF85176H/1,518
Manufacturer NXP
Description IC LCD DISPLAY DVR 40SEG 64TQFP
Datasheet PCF85176H/1,518Datasheet
Package 64-TQFP
In Stock 408 piece(s)
Unit Price $ 0.9715 *
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PCF85176H/1,518

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PCF85176H/1,518Specifications

ManufacturerNXP
CategoryIntegrated Circuits (ICs) - PMIC - Display Drivers
Datasheet PCF85176H/1,518Datasheet
Package64-TQFP
Series-
Display TypeLCD
Configuration40 Segment
InterfaceI2C
Current - Supply20µA
Voltage - Supply1.8 V ~ 5.5 V
Operating Temperature-40°C ~ 85°C
Mounting TypeSurface Mount
Package / Case64-TQFP
Supplier Device Package64-TQFP (10x10)

PCF85176H/1,518Datasheet

Page 1

Page 2

1. General description The PCF85176 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 PCF85176 is compatible with most microcontrollers and communicates via the two-line bidirectional I2C-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). For a selection of NXP LCD segment drivers, see Table 24 on page 49. 2. Features and benefits  Single chip LCD controller and driver  Selectable backplane drive configuration: static, 2, 3, or 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 guest-host LCDs and high-threshold twisted nematic LCDs  Low power consumption  400 kHz I2C-bus interface  May be cascaded for large LCD applications (up to 2560 segments/elements possible)  No external components required  Manufactured in silicon gate CMOS process PCF85176 40 x 4 universal LCD driver for low multiplex rates Rev. 5 — 6 January 2015 Product data sheet 1. The definition of the abbreviations and acronyms used in this data sheet can be found in Section 21.

Page 3

NXP Semiconductors PCF85176 40 x 4 universal LCD driver for low multiplex rates3. Ordering information 3.1 Ordering options 4. Marking Table 1. Ordering information Type number Package Name Description Version PCF85176H TQFP64 plastic thin quad flat package, 64 leads; body 10  10  1.0 mm SOT357-1 PCF85176T TSSOP56 plastic thin shrink small outline package, 56 leads; body width 6.1 mm SOT364-1 Table 2. Ordering options Product type number Sales item (12NC) Orderable part number IC revision Delivery form PCF85176H/1 935290063518 PCF85176H/1,518 1 tape and reel, 13 inch, dry pack PCF85176T/1 935290075118 PCF85176T/1,118 1 tape and reel, 13 inch Table 3. Marking codes Product type number Marking code PCF85176H/1 PCF85176H PCF85176T/1 PCF85176TPCF85176 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2015. All rights reserved. Product data sheet Rev. 5 — 6 January 2015 2 of 57

Page 4

NXP Semiconductors PCF85176 40 x 4 universal LCD driver for low multiplex rates5. Block diagram Fig 1. Block diagram of PCF85176PCF85176 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2015. All rights reserved. Product data sheet Rev. 5 — 6 January 2015 3 of 57

Page 5

xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx x x x xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xx xx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxx x x xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx xxx P C F 85 176 P ro d u ct d ata sh N X P S em ico n d u cto rs P C F 85176 4 0 x 4 u n iv e rs a l L C D d rive r fo r lo w m u ltip le x rate s 6. Pinning information 6.1 Pinning , see Figure 30. 56 (PCF85176T)A ll inform ation provided in this do cum ent is sub ject to leg al d isclaim ers. © N X P S e m icon ductors N .V . 2015. A ll rig hts re served. eet R ev. 5 — 6 Ja n u a ry 2 015 4 o f 57 Top view. For mechanical details, see Figure 29. Top view. For mechanical details Fig 2. Pinning diagram for TQFP64 (PCF85176H) Fig 3. Pinning diagram for TSSOP

Page 6

NXP Semiconductors PCF85176 40 x 4 universal LCD driver for low multiplex rates6.2 Pin description Table 4. Pin description Input or input/output pins must always be at a defined level (VSS or VDD) unless otherwise specified. Symbol Pin Description TQFP64 (PCF85176H) TSSOP56 (PCF85176T) Type SDA 10 44 input/output I2C-bus serial data line SCL 11 45 input I2C-bus serial clock CLK 13 47 input/output clock line VDD 14 48 supply supply voltage SYNC 12 46 input/output cascade synchronization input or output; if not used it must be left open OSC 15 49 input internal oscillator enable A0 to A2 16 to 18 50 to 52 input subaddress inputs SA0 19 53 input I2C-bus address input VSS 20 54 supply ground supply voltage VLCD 21 55 supply LCD supply voltage BP0, BP2, BP1, BP3 25 to 28 56, 1, 2, 3 output LCD backplane outputs S0 to S39 29 to 32, 34 to 47, 49 to 64, 2 to 7 4 to 43 output LCD segment outputs n.c. 1, 8, 9, 22 to 24, 33, 48 - - not connected; do not connect and do not use as feed throughPCF85176 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2015. All rights reserved. Product data sheet Rev. 5 — 6 January 2015 5 of 57

Page 7

NXP Semiconductors PCF85176 40 x 4 universal LCD driver for low multiplex rates7. Functional description The PCF85176 is a versatile peripheral device designed to interface between any microcontroller to a wide variety of LCD segment or dot matrix displays (see Figure 4). It can directly drive any static or multiplexed LCD containing up to four backplanes and up to 40 segments. 7.1 Commands of PCF85176 The commands available to the PCF85176 are defined in Table 5. All available commands carry a continuation bit C in their most significant bit position as shown in Figure 22. When this bit is set logic 1, it indicates that the next byte of the transfer to arrive will also represent a command. If this bit is set logic 0, it indicates that the command byte is the last in the transfer. Further bytes are regarded as display data (see Table 6). Table 5. Definition of PCF85176 commands Bit position labeled as - is not used. Command Operation Code Reference Bit 7 6 5 4 3 2 1 0 mode-set C 1 0 - E B M[1:0] Table 7 load-data-pointer C 0 P[5:0] Table 8 device-select C 1 1 0 0 A[2:0] Table 9 bank-select C 1 1 1 1 0 I O Table 10 blink-select C 1 1 1 0 AB BF[1:0] Table 11 Table 6. C bit description Bit Symbol Value Description 7 C continue bit 0 last control byte in the transfer; next byte will be regarded as display data 1 control bytes continue; next byte will be a command tooPCF85176 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2015. All rights reserved. Product data sheet Rev. 5 — 6 January 2015 6 of 57

Page 8

NXP Semiconductors PCF85176 40 x 4 universal LCD driver for low multiplex rates7.1.1 Command: mode-set The mode-set command allows configuring the multiplex mode, the bias levels and enabling or disabling the display. [1] The possibility to disable the display allows implementation of blinking under external control. [2] Default value. [3] The display is disabled by setting all backplane and segment outputs to VLCD. [4] Not applicable for static drive mode. 7.1.2 Command: load-data-pointer The load-data-pointer command defines the display RAM address where the following display data are sent to. [1] Default value. Table 7. Mode-set command bit description Bit Symbol Value Description 7 C 0, 1 see Table 6 6 to 5 - 10 fixed value 4 - - unused 3 E display status[1] 0[2] disabled (blank)[3] 1 enabled 2 B LCD bias configuration[4] 0[2] 1⁄3 bias 1 1⁄2 bias 1 to 0 M[1:0] LCD drive mode selection 01 static; BP0 10 1:2 multiplex; BP0, BP1 11 1:3 multiplex; BP0, BP1, BP2 00[2] 1:4 multiplex; BP0, BP1, BP2, BP3 Table 8. Load-data-pointer command bit description See Section 7.6.1. Bit Symbol Value Description 7 C 0, 1 see Table 6 6 - 0 fixed value 5 to 0 P[5:0] 000000[1] to 100111 6-bit binary value, 0 to 39; transferred to the data pointer to define one of 40 display RAM addressesPCF85176 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2015. All rights reserved. Product data sheet Rev. 5 — 6 January 2015 7 of 57

Page 9

NXP Semiconductors PCF85176 40 x 4 universal LCD driver for low multiplex rates7.1.3 Command: device-select The device-select command allows defining the subaddress counter value. [1] Default value. 7.1.4 Command: bank-select The bank-select command controls where data is written to RAM and where it is displayed from. [1] The bank-select command has no effect in 1:3 and 1:4 multiplex drive modes. [2] Default value. Table 9. Device-select command bit description See Section 7.6.2. Bit Symbol Value Description 7 C 0, 1 see Table 6 6 to 3 - 1100 fixed value 2 to 0 A[2:0] 000[1] to 111 3-bit binary value, 0 to 7; transferred to the subaddress counter to define 1 of 8 hardware subaddresses Table 10. Bank-select command bit description See Section 7.6.5. Bit Symbol Value Description Static 1:2 multiplex[1] 7 C 0, 1 see Table 6 6 to 2 - 11110 fixed value 1 I input bank selection; storage of arriving display data 0[2] RAM row 0 RAM rows 0 and 1 1 RAM row 2 RAM rows 2 and 3 0 O output bank selection; retrieval of LCD display data 0[2] RAM row 0 RAM rows 0 and 1 1 RAM row 2 RAM rows 2 and 3PCF85176 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2015. All rights reserved. Product data sheet Rev. 5 — 6 January 2015 8 of 57

Page 10

NXP Semiconductors PCF85176 40 x 4 universal LCD driver for low multiplex rates7.1.5 Command: blink-select The blink-select command allows configuring the blink mode and the blink frequency. [1] Default value. [2] Normal blinking is assumed when the LCD multiplex drive modes 1:3 or 1:4 are selected. [3] Alternate RAM bank blinking does not apply in 1:3 and 1:4 multiplex drive modes. 7.1.5.1 Blinking The display blinking capabilities of the PCF85176 are very versatile. The whole display can blink at frequencies selected by the blink-select command (see Table 11). The blink frequencies are derived from the clock frequency. The ratio between the clock and blink frequencies depends on the blink mode selected (see Table 12). An additional feature is for an arbitrary selection of LCD segments/elements to blink. This applies to the static and 1:2 multiplex drive modes and can be implemented without any communication overheads. With the output bank selector, the displayed RAM banks are exchanged with alternate RAM banks at the blink frequency. This mode can also be specified by the blink-select command. In the 1:3 and 1:4 multiplex modes, where no alternative RAM bank is available, groups of LCD segments/elements can blink by selectively changing the display RAM data at fixed time intervals. The entire display can blink at a frequency other than the nominal blink frequency. This can be effectively performed by resetting and setting the display enable bit E at the required rate using the mode-set command (see Table 7). Table 11. Blink-select command bit description See Section 7.1.5.1. Bit Symbol Value Description 7 C 0, 1 see Table 6 6 to 3 - 1110 fixed value 2 AB blink mode selection 0[1] normal blinking[2] 1 alternate RAM bank blinking[3] 1 to 0 BF[1:0] blink frequency selection 00[1] off 01 1 10 2 11 3PCF85176 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2015. All rights reserved. Product data sheet Rev. 5 — 6 January 2015 9 of 57

PCF85176H/1,518Reviews

Average User Rating
5 / 5 (70)
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63
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Oakle*****owell

February 16, 2020

Does what it says. As with this this type of device it is important to have it mounted so that heat can dissipate. The higher the amperage the hotter the device.

Chai*****ndey

January 15, 2020

I always enjoy shopping with Heisener, never makes a mistake, most reliable, and no long waiting for deliveries.

Wesso*****ferson

December 7, 2019

I have always get a fast response from Heisener with my orders. As a small business owner I greatly appreciate that I can order as little as 1 item as opposed to other companies who require you place a larger minimum order.

Cesa*****leman

December 7, 2019

Excellent safe and secure packing. Fast ship out. Thanks

Bray*****Romero

November 4, 2019

Every little component you can always find in here, and good suggestion for relative times too.

Finl*****osley

October 30, 2019

Very friendly online shopping site - easy to navigate and it keeps vital datasheet for each product online purchase.

Denv*****urtis

October 27, 2019

I was glad to find this product being sold at a great price. They were the perfect replacement.

Raide*****nklin

October 26, 2019

So far so good. I need to see how they hold up.

Elli*****ntley

October 25, 2019

You get the most update products online. You always give me the best choice.

Rem*****oman

October 24, 2019

Good and works well. What else is there to say about it.

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