PCF8538UG: Universal 102 x 9 Chip-On-Glass LCD segment driver
The PCF8538 is a fully featured Chip‑On‑Glass (COG) Liquid Crystal Display (LCD) driver, designed for high-contrast Vertical Alignment (VA) LCD with multiplex rates up to 1:9. It generates the drive signals for a static or multiplexed LCD containing up to 9 backplanes, 102 segments, and up to 918 elements. The PCF8538 features an internal charge pump with internal capacitors for on‑chip generation of the LCD driving voltage. To ensure an optimal and stable contrast over the full temperature range, the PCF8538 offers a programmable temperature compensation of the LCD supply voltage. The PCF8538 can be easily controlled by a microcontroller through either the two-line I²C‑bus or a four‑line bidirectional SPI‑bus.
Data Sheets (1)
| Name/Description | Modified Date |
|---|---|
| Universal 102 x 9 Chip-On-Glass LCD segment driver (REV 2.0) PDF (827.0 kB) PCF8538 | 26 Sep 2014 |
Application Notes (2)
| Name/Description | Modified Date |
|---|---|
| Design and application guidelines for the COG LCD drivers PCF8538 and PCA8538 (REV 1.0) PDF (814.0 kB) AN11491 | 06 Mar 2015 |
| Design guidelines for COG modules with NXP® monochrome LCD drivers (REV 4.0) PDF (205.0 kB) AN10170 | 04 Aug 2014 |
Ordering Information
| Product | Status | Package name | Max number of segments/elements | Package version | Segments/elements of MUX 1:1 | Segments/elements of MUX 1:2 | Segments/elements of MUX 1:3 | Segments/elements of MUX 1:4 | Segments/elements of MUX 1:6 | Segments/elements of MUX 1:8 | AEC-Q100 compliant | SPI-bus | C-bus | I2C-bus | VDD1 [min] (V) | I2C speed | VDD1 [max] (V) | IDD [typ] (uA) | VLCD [min] (V) | VLCD [max] (V) | Tamb [min] (C) | Tamb [min] (C) | Tamb [max] (C) | ffr (Hz) | Selectable | Cascade for larger conf |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PCF8538UG/2DA/1 | Active | NAU000 | 816 | 102 | 204 | 408 | 612 | 816 | N | 2.5 | 5 | 4 | 12 | -40 | -40 | 105 | SEL | Y |
Package Information
| Product ID | Package Description | Outline Version | Reflow/Wave Soldering | Packing | Product Status | Part NumberOrdering code(12NC) | Marking | Chemical Content | RoHS / Pb Free / RHF | LeadFree Conversion Date | MSL | MSL LF |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PCF8538UG/2DA/1 |  | Die In Waffle Carriers 3" | Active | PCF8538UG/2DA/1Z (9353 033 37033) | Standard Marking | PCF8538UG/2DA/1 |    | Always Pb-free | NA | NA |
