product struct ure silicon monolithic integrated circuit this product is not designed protection against radioactive rays. 1 / 30 tsz02201 - 0p4p0d301120 - 1 - 2 8.july.2015 rev.001 www.rohm.com ? 2015 rohm co., ltd. all rights reserved. tsz22111 ? 14 ? 001 lcd segment drivers multi - function lcd segment drivers b u9150 1 kv - m max 2 04 segment( 5 1 seg x4com) general description the bu91501kv - m is 1/4 or 1/3 - duty general - purpose lcd d river that can be used for frequency display in electronic tu ners under the control of a microcontroller. the bu91501kv - m can drive up to 2 04 lcd segments directly and c ontrol up to 4 general - purpose output ports and up to 30 key input detection. features ? aec - q100 qualified (note) ? key input function for up to 30 k eys (a key scan is performed only when a key is pressed.) ? either 1/4 or 1/3 duty can be selected 1/4 duty drive up to 204 segments 1/3 duty drive up to 156 segments ? integrated ram for display data (ddram) ? segment/gpo (max 4port) output mode selectable ? su pport standby mode ? integrated power - on reset circuit ? integrated oscillator circuit ? no external component ? low power consumption design (note ) grade 2 applications ? car audio, home electrical appliance, meter e quipment etc. key specifications supply volta ge range: 2.7v to 6.0v lcd drive power supply range: 4.5v to 6.0v operating temperature range: - 40c to + 105c max segments: 204 segments display duty: 1/3, 1/4 selectable bias: 1/2, 1/3 selectable interface: 3wire serial interface package w (typ.) x d (typ.) x h (max.) typical application circuit fi gure 1 . typical application circuit vqfp64 12.00mm x 12.00mm x 1.60mm lcd panel ( up to 204 segments ) vdd vlcd resb csb scl sd do com1 com2 com3 p1/s1 p2/s2 p4/s4 s5 com4/s41 (p1) (p2) (p4) +5v +5.5v (note1) to control ler s40 from contro ller ks1/s42 | ks6/s47 ki1/s48 | k i5/s52 (general purpose ports ) (for use control of backlight) key matrix (note1) (note1) insert capaci tors between vdd/vlcd and vss c0.1uf . datashee t
2 / 30 bu 9 1 50 1 kv - m data s heet tsz02201 - 0p4p0d301120 - 1 - 2 8.july.2015 rev.001 www.rohm.com ? 2015 rohm co., ltd. all rights reserved. tsz22111 >? 1 5 >? 001 block diagram / pin configuration / pin description figure 2. block diagram figur e 3. pin configuration (top view) terminal terminal no. i/o handling when unused functions csb 59 i vdd & |