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BU97520AKV-ME2
Public Made by Adomby adom
ROHM Semicon LCD Drivers, LQFP-80(12x12). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownBU97520AKV-ME2
ROHM Semicon · LCD Drivers · LQFP-80(12x12)
BU97520AKV-ME2 from ROHM Semicon, in a LQFP-80(12x12). Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | S3/P3/G3 | output | Segment output for LCD display data; configurable as PWM or General-purpose output via control data P0-P2. |
| 2 | S4/P4/G4 | output | Segment output for LCD display data; configurable as PWM or General-purpose output via control data P0-P2. |
| 3 | S5/P5/G5 | output | Segment output for LCD display data; configurable as PWM or General-purpose output via control data P0-P2. |
| 4 | S6/P6/G6 | output | Segment output for LCD display data; configurable as PWM or General-purpose output via control data P0-P2. |
| 5 | S7 | output | Segment output for LCD display data transferred by serial data input. |
| 6 | S8 | output | Segment output for LCD display data transferred by serial data input. |
| 7 | S9 | output | Segment output for LCD display data transferred by serial data input. |
| 8 | S10 | output | Segment output for LCD display data transferred by serial data input. |
| 9 | S11 | output | Segment output for LCD display data transferred by serial data input. |
| 10 | S12 | output | Segment output for LCD display data transferred by serial data input. |
| 11 | S13 | output | Segment output for LCD display data transferred by serial data input. |
| 12 | S14 | output | Segment output for LCD display data transferred by serial data input. |
| 13 | S15 | output | Segment output for LCD display data transferred by serial data input. |
| 14 | S16 | output | Segment output for LCD display data transferred by serial data input. |
| 15 | S17 | output | Segment output for LCD display data transferred by serial data input. |
| 16 | S18 | output | Segment output for LCD display data transferred by serial data input. |
| 17 | S19 | output | Segment output for LCD display data transferred by serial data input. |
| 18 | S20 | output | Segment output for LCD display data transferred by serial data input. |
| 19 | S21 | output | Segment output for LCD display data transferred by serial data input. |
| 20 | S22 | output | Segment output for LCD display data transferred by serial data input. |
| 21 | S23 | output | Segment output for LCD display data transferred by serial data input. |
| 22 | S24 | output | Segment output for LCD display data transferred by serial data input. |
| 23 | S25 | output | Segment output for LCD display data transferred by serial data input. |
| 24 | S26 | output | Segment output for LCD display data transferred by serial data input. |
| 25 | S27 | output | Segment output for LCD display data transferred by serial data input. |
| 26 | S28 | output | Segment output for LCD display data transferred by serial data input. |
| 27 | S29 | output | Segment output for LCD display data transferred by serial data input. |
| 28 | S30 | output | Segment output for LCD display data transferred by serial data input. |
| 29 | S31 | output | Segment output for LCD display data transferred by serial data input. |
| 30 | S32 | output | Segment output for LCD display data transferred by serial data input. |
| 31 | S33 | output | Segment output for LCD display data transferred by serial data input. |
| 32 | S34 | output | Segment output for LCD display data transferred by serial data input. |
| 33 | S35 | output | Segment output for LCD display data transferred by serial data input. |
| 34 | S36 | output | Segment output for LCD display data transferred by serial data input. |
| 35 | S37 | output | Segment output for LCD display data transferred by serial data input. |
| 36 | S38 | output | Segment output for LCD display data transferred by serial data input. |
| 37 | S39 | output | Segment output for LCD display data transferred by serial data input. |
| 38 | S40 | output | Segment output for LCD display data transferred by serial data input. |
| 39 | S41 | output | Segment output for LCD display data transferred by serial data input. |
| 40 | S42 | output | Segment output for LCD display data transferred by serial data input. |
| 41 | S43 | output | Segment output for LCD display data transferred by serial data input. |
| 42 | S44 | output | Segment output for LCD display data transferred by serial data input. |
| 43 | S45 | output | Segment output for LCD display data transferred by serial data input. |
| 44 | S46 | output | Segment output for LCD display data transferred by serial data input. |
| 45 | S47 | output | Segment output for LCD display data transferred by serial data input. |
| 46 | S48 | output | Segment output for LCD display data transferred by serial data input. |
| 47 | S49 | output | Segment output for LCD display data transferred by serial data input. |
| 48 | S50 | output | Segment output for LCD display data transferred by serial data input. |
| 49 | S51 | output | Segment output for LCD display data transferred by serial data input. |
| 50 | S52 | output | Segment output for LCD display data transferred by serial data input. |
| 51 | S53 | output | Segment output for LCD display data transferred by serial data input. |
| 52 | S54 | output | Segment output for LCD display data transferred by serial data input. |
| 53 | S55 | output | Segment output for LCD display data transferred by serial data input. |
| 54 | KS1/S56 | output | Key scan output; unbalanced CMOS output robust to shorting in key matrix; configurable as segment output via control data. |
| 55 | KS2/S57 | output | Key scan output; unbalanced CMOS output robust to shorting in key matrix; configurable as segment output via control data. |
| 56 | KS3/S58 | output | Key scan output; unbalanced CMOS output robust to shorting in key matrix; configurable as segment output via control data. |
| 57 | KS4/S59 | output | Key scan output; unbalanced CMOS output robust to shorting in key matrix; configurable as segment output via control data. |
| 58 | KS5/S60 | output | Key scan output; unbalanced CMOS output robust to shorting in key matrix; configurable as segment output via control data. |
| 59 | KS6/S61 | output | Key scan output; unbalanced CMOS output robust to shorting in key matrix; configurable as segment output via control data. |
| 60 | KI1/S62 | bidirectional | Key scan input with built-in pull-down resistor; can be configured as segment output via control data KM0-KM2. |
| 61 | KI2/S63 | bidirectional | Key scan input with built-in pull-down resistor; can be configured as segment output via control data KM0-KM2. |
| 62 | KI3/S64 | bidirectional | Key scan input with built-in pull-down resistor; can be configured as segment output via control data KM0-KM2. |
| 63 | KI4/S65 | bidirectional | Key scan input with built-in pull-down resistor; can be configured as segment output via control data KM0-KM2. |
| 64 | KI5/S66 | bidirectional | Key scan input with built-in pull-down resistor; can be configured as segment output via control data KM0-KM2. |
| 65 | COM1 | output | Common driver output pin for LCD driving at frame frequency fo[Hz] determined by control data FC0-FC2. |
| 66 | COM2 | output | Common driver output pin for LCD driving at frame frequency fo[Hz] determined by control data FC0-FC2. |
| 67 | COM3 | output | Common driver output pin for LCD driving at frame frequency fo[Hz] determined by control data FC0-FC2. |
| 68 | COM4 | output | Common driver output pin for LCD driving at frame frequency fo[Hz] determined by control data FC0-FC2. |
| 69 | S67 | output | Segment output for LCD display data transferred by serial data input. |
| 70 | VDD | power_in | Power supply input; supply voltage of 2.7V to 6.0V must be applied; connect 0.1µF capacitor to VSS. |
| 71 | S68 | output | Segment output for LCD display data transferred by serial data input. |
| 72 | SDO | output | Serial data output (open-drain); outputs key data and power-saving acknowledge status; requires 1kΩ to 10kΩ pull-up resistor. |
| 73 | VSS | power_in | Ground connection; power supply reference for all circuits. |
| 74 | OSC/S69 | bidirectional | Segment output S69 or external clock input OSC; functionality selectable by control data OC bit. |
| 75 | INHb | input | Display off control input (active low); forces all segment and common outputs to VSS and stops oscillation when low. |
| 76 | SCE | input | Chip enable input for 3-wire serial interface; must be controlled by host controller. |
| 77 | SCL | input | Serial clock input for 3-wire serial data transfer; clock cycle time minimum 320ns. |
| 78 | SDI | input | Serial data input for 3-wire serial interface communication with host controller. |
| 79 | S1/P1/G1 | output | Segment output for LCD display data; configurable as PWM or General-purpose output via control data P0-P2. |
| 80 | S2/P2/G2 | output | Segment output for LCD display data; configurable as PWM or General-purpose output via control data P0-P2. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ROHM Semicon |
| Package | LQFP-80(12x12) |
| Category | LED Drivers |
| Pins | 80 |
CAD (KiCad official)
- Symbol:
BU97520AKV-ME2 - Footprint:
Package_QFP:LQFP-80_12x12mm_P0.5mm - 3D model: LQFP-80(12x12) (KiCad packages3D, STEP)
- 3D model files:
bu97520akv-me2-etched.step/bu97520akv-me2-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bu97520akv-me2.step/bu97520akv-me2.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ROHM Semicon datasheet (44 pp, sha256
2752135c4f4658ae, retrieved 2026-09-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).