BU97930MUV Datasheet, PDF (2/24 Pages) Rohm – Multifunction Segment Drivers

BU97930MUV,BU97931FV,BU9798KV,BU9798GUW,BU97500KV
●Features (BU97500KV)
1) LCD drive output:
Common output : 4, Segment output : 51
2) Integrated Display data RAM (DDRAM)
RAM: 51*4 =204 bit
3) 3-wire Serial interface (SD, SCL, CSB )
4) Integrated Oscillator circuit
5) Integrated Power supply circuit for LCD driving:
Support 1/2 and 1/3 Bias
Support 1/3 and 1/4 Duty
Integrated Buffer AMP
6) Support Split Supply for Logic (VDD) and LCD (VLCD)
7) Segment terminals operation, segment output mode/GPO output mode selectable
8) Low power consumption design
9) Support standby mode
10) Integrated Power-on Reset circuit
11) No external components
12) Operating power supply: VDD = 2.7 ~ 5.5V
13) LCD drive power supply: VLCD=4.5 ~ 5.5V
Technical Note
●Applications
Telephone, FAX, Portable equipment (POS, ECR, PDA etc.),
DSC, DVC, Car Audio, Home electrical appliance, Meter equipment, Healthcare equipment etc.
●Line up matrix
Parameter
Segment output
Common output
Total display dot number
Adjustable contrast function
Support split voltage supply
Interface
Package
BU97930MUV
27
1/3/4
108
-
YES
3wireSPI
VQFN040V6060
BU97931FV
28
1/3/4
112
-
YES
3wire SPI
SSOP-B40
BU9798KV/GUW
49
1/3/4
196
YES
YES
3wire SPI
VQFP64
/ VBGA063W050
BU97500KV
52 (1/3Duty)
51 (1/4Duty)
3 (1/3Duty)
4 (1/4Duty)
156 (1/3Duty)
204 (1/4Duty)
-
YES
3wire SPI
VQFP64
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2010.04 - Rev.A