BU97500KV-E2 ROHM

Datasheet Multifunction LCD Segment Driver BU97500KV MAX 204 segments (SEG51COM4) Features Key Specifications Integrated RAM for display data (DDRAM): Supply Voltage Range: +2.7V to +5.5V 51 x 4bit (Max 204 Segment) LCD drive power supply Range: +4.5V to +5.5V LCD drive output: Operating Temperature Range: -40C to +85C 4 Common output, Max 51Segment output Max Segments: 204 Segments Segment/GPO (Max 4port) output mode selectable Display Duty: 1/3, 1/4 selectable Support standby mode Bias: 1/2, 1/3 selectable Integrated Power-on Reset circuit Interface: 3wire serial interface Integrated Oscillator circuit No external component Package W (Typ.) x D (Typ.) x H (Max.) Low power consumption design Independent power supply for LCD driving Applications Telephone FAX Portable equipment (POS, ECR, PDA etc.) DSC DVC Car audio Home electrical appliance VQFP64 Meter equipment 12.00mm x 12.00mm x 1.60mm etc. Typical Application Circuit (P1) (P2) (General purpose ports) (For use control of backlight) (P4) +5V VDD OSC COM1 COM2 COM3 *1 P1/S1 P2/S2 +5.5V VLCD *1 P4/S4 LCD Panel S5 (Up to 204 Segments) RESB S40 From CSB COM4/S41 Control SCL S42 SD S52 OPEN DO *1 Insert capacitors between VDD and VSS C0.1uF Figure 1. Typical application circuit Product structureSilicon monolithic integrated circuit This product is not designed for protection against radioactive rays. www.rohm.com TSZ02201-0A0A2D300050-1-2 2013 ROHM Co., Ltd. All rights reserved. 1/23 TSZ2211114001 8.Jan.2013 Rev.002DatasheetDatasheet BU97500KV MAX 204 segments (SEG51COM4) Block Diagram / Pin Configuration / Pin Description LCD VOLTAGE GENERATOR VLCD SEGMENT DRIVER & LATCH 49 32 S46 S32 COMMON + - S47 S31 DRIVER S48 S30 + - SHIFT REGISTER S49 S29 S50 S28 S51 S27 S52 S26 OSC S25 CLOCK CONTROL OSC GENERATOR REGISTER RESB S24 TEST S23 CSB S22 DO SCL S21 3-SPI SD S20 SD INTERFACE VLCD S19 SCL VDD S18 CSB VSS S17 VDD 64 17 P.O.R RESET FILTER Figure 2. Block Diagram Figure 3. Pin Configuration (TOP VIEW) Table 1 Pin Description Terminal Terminal I/O Unused case Function No. CSB 59 I VDD Chip select : L active SCL 60 I VSS Serial data transfer clock SD 61 I VSS Input serial data VDD 63 - - Power Supply for the logic External clock input terminal OSC 56 I/O OPEN/VSS Supported Hi-Z input if the internal clock mode. VSS 64 - - GND VLCD 62 - - Power Supply for the LCD driver COM1 to 3 41 to 43 O OPEN COMMON output for LCD driving COMMON / SEGMENT output for LCD driving COM4/S41 44 O OPEN Assigned as SEGMENT output in 1/3Duty mode. S1/P1 to S4/P4 1 to 4 O OPEN SEGMENT output for LCD driving / General Purpose output S5 to S40 5 to 40 O OPEN SEGMENT output for LCD driving S42 to S52 45 to 55 Reset Input: RESB=L : Display is disabled RESB 57 I VDD RESB=H : Display is controllable NOTE) 3-SPI is NOT available if RESET is L. DO 58 O OPEN Output for manufacturing test: www.rohm.com TSZ02201-0A0A2D300050-1-2 2013 ROHM Co., Ltd. All rights reserved. 2/23 TSZ2211115001 8.Jan.2013 Rev.002 11 1166 RESB COM1 COM2 COM3 COM4/S41 S52 S5 S4/P4 S2/P2 S1/P1 48 P1/S1 S45 P2/S2 S44 P3/S3 S43 P4/S4 S42 S5 COM4/S41 S6 COM3 S7 COM2 S8 COM1 S9 S40 S10 S39 S11 S38 S12 S37 S13 S36 S14 S35 S15 S34 S16 S33 33