ML9470-12GAZ0AA ROHM

FEDL9470-11-01 Issue Date: Sep. 11, 2007 Semiconductor ML9470-11/12 Static,1/2Duty 80 Output LCD Driver GENERAL DESCRIPTION The ML9470 is a LCD driver which can directly drive up to 80 segments in the static display mode and up to 160 segments in the 1/2 duty dynamic display mode. FEATURES Operating range Supply voltage : 3.0 to 5.5 V Operating temperature range : 40 to + 105C Segment output Static display mode : Up to 80 segments can be displayed. 1/2 duty : Up to 160 segments can be displayed. Simple interface with microcomputer Built-in common signal generator One-to-one correspondence between input data and output data When input data is at H level : Display goes on. When input data is at L level : Display goes off. Test pin for all-on (SEG TEST) and all-off (BLANK / BLNAK) Can be cascade-connected Can be synchronized with the external common signal Applicable as an output expander LCD driving voltage can be adjusted by the combination of V and V LC1 LC2 Package 100-pin plastic QFP (QFP100-P-1420-0.65-BK) (Product name: ML9470-11GA) (Product name: ML9470-12GA) Comparison of device codes and function Device code Symbol Function ML9470-11 BLANK Active L ML9470-12 BLANK Active H 1/21 FEDL9470-11-01 LAPIS Semiconductor ML9470-11/12 BLOCK DIAGRAM ML9470-11 SEG1 SEG80 SEG TEST 80-Dot Segment Driver BLANK 80-Ch Data Selector 80 80 LOAD 80-Bit Latch(A) 80-Bit Latch(B) 80 80 CLOCK DATA IN 80-Stage Shift Register(A) 80-Stage Shift Register(B) DATA OUT2 DATA OUT1 D/S EXT/INT V LC1 V LC2 1/4 or 1/8 1/2 OSC OUT COMMON OSC OSC OUT Driver COM A OSC IN COM B COM OUT SYNC SYNC Circuit VDD GND 2/21