BU97930MUV-E2

Datasheet Multifunction LCD Segment Driver BU97930MUV MAX 108 segments (SEG27COM4) Features Key Specifications Integrated RAM for display data (DDRAM): Supply Voltage Range: +1.8V to +3.6V 27 x 4 bit (Max 108 Segment) LCD drive power supply Range: +2.7V to +5.5V LCD drive output: Operating Temperature Range: -40C to +85C 4 Common output, Max 27 Segment output Max Segments: 108 Segments Integrated 1ch LED driver circuit Display Duty: Static, 1/3, 1/4 selectable Segment /GPO(Max 4port) output mode selectable Bias: Static, 1/3 Support PWM generation from ext. or internal clock Interface: 3wire serial interface (Resolution: 8bit) Support standby mode Package W (Typ.) x D (Typ.) x H (Max.) Integrated Power-on-Reset circuit (POR) Integrated Oscillator circuit No external component Low power consumption design Independent power supply for LCD driving Support Blink function (Blink frequency 1.6, 2.0, 2.6, 4.0Hz selectable) Applications Telephone FAX Portable equipment (POS, ECR, PDA etc.) VQFN040V6060 DSC 6.00mm x 6.00mm x 1.00mm DVC Car audio Home electrical appliance Meter equipment etc. Typical Application Circuit LED/GPO using case VLED= 5. 0 V *R egarding resistor value Please detect the value according to VLCD input current value ( current MAX = 20 mA ) LED VDD Other device SEG26 ( GPO 1 ) to BU97930 M UV SEG23 ( GPO 4 ) 5. 0 V 3. 3 V VSS SEG0 to SEG 22 CSB SD SCL INHb CLKIN LCD COM 0 to COM3 CLKIN External CLK input terminal In case being unused, c onnect to VSS or be opened. Input signal from controller Figure 1. Typical application circuit Product structureSilicon monolithic integrated circuit This product is not designed for protection against radioactive rays. www.rohm.com TSZ02201-0A0A2D300060-1-2 2013 ROHM Co., Ltd. All rights reserved. 1/28 TSZ2211114001 10.Apr.2015 Rev.004 BU97930MUV MAX 108 segments (SEG27COM4) Block Diagram / Pin Configuration / Pin Description COM0COM3 SEG0 .22 SEG2 3...26 LED VLCD LCD voltage common Segment Segment LED Ge nerator driver driver driver/GPO driver 40 11 VSS COM3 GPO 39 12 Controlle LCD LED SEG0 r BIAS 38 13 SELECTOR SEG26 SEG1 blink timing common DDRAM 37 14 SEG25 SEG2 counter generator GPO data latch PWM Generator 36 15 SEG24 SEG3 EXT-PAD 35 16 SEG23 SEG4 VSS 34 17 SEG22 SEG5 INHb 33 18 SEG21 SEG6 Command Data register clock 32 19 CR Os cillator SEG20 SEG7 divider Decoder (typ=40.96kHz (Div.2) ) 31 20 Power On SEG19 SEG8 serial inter face Reset CLKIN OSC b lock VDD IF FILTER VSS CSB SD SCL Figure 2. Block Diagram Figure 3. Pin Configuration (BOTTOM VIEW) Table 1 Pin Description Terminal Terminal I/O unused case Function number CSB 1 I - Chip select: active SCL 2 I - Serial data transfer clock SD 3 I - Input serial data VDD 4 - - Power supply for LOGIC External clock input terminal (for display/PWM using selectable) CLKIN 6 I OPEN / VSS Support Hi-Z input mode at internal clock mode VSS 40 - - GND VLCD 7 - - Power supply for LCD Display turning on/off select terminal H: turning on display, L: turning off display INHb 5 I VDD INHb = L: All SEG/COM terminals : output VSS level GPO terminal : output VSS level LED drive terminal : output Hi-Z COM0 to 3 8 to 11 O OPEN COMMON output for LCD SEG0 to 22 12 to 34 O OPEN SEGMENT output for LCD SEG23 to 26 35 to 38 O OPEN SEGMENT output for LCD/GPO LED 39 O OPEN LED driver output EXT-PAD - - VSS substrate www.rohm.com TSZ02201-0A0A2D300060-1-2 2013 ROHM Co., Ltd. All rights reserved. 2/28 TSZ2211115001 10.Apr.2015 Rev.004 30 1 SEG18 CSB 29 2 SEG17 SCL 28 3 SEG16 SD 27 4 SEG15 VDD 26 5 SEG14 INHb 25 6 SEG13 CLKIN 24 7 SEG12 VLCD 23 8 SEG11 COM0 22 9 SEG10 COM1 21 10 SEG9 COM2