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BU9798GUW PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 BU9798GUW
기능 Multifunction Segment Drivers
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BU9798GUW 데이터시트, 핀배열, 회로
LCD Segment Driver series
Multifunction
Segment Drivers
BU97930MUV,BU97931FV,BU9798KV,BU9798GUW,BU97500KV
No.10044EAT04
Description
New released Multi-function type segment drivers support GPO function, LED driving function, static-driving mode, and
Blink function that can blink each segment individually.
ROHM Multi-function segment driver series contribute to reduction in cost of system and easy software development.
Features (BU97930MUV, BU97931FV, BU9798KV/GUW)
1) LCD drive output
Common output : 4, Segment output : 27 (BU97930MUV)
Common output : 4, Segment output : 28 (BU97931FV)
Common output : 4, Segment output : 49 (BU9798KV/GUW)
2) Integrated Display data RAM (DDRAM)
RAM: 28*4 =112 bit (BU97930MUV, BU97931FV)
RAM: 49*4 =196 bit (BU9798KV/GUW)
3) 3-wire Serial interface (SD, SCL, CSB)
4) Integrated Oscillator circuit
5) Integrated LCD Voltage generator circuit
Support: 1/3 Bias, 1/3 or 1/4 Duty
Support: 1/1 Bias, 1/1Duty (Static Driving)
Integrated buffer amp
Integrated regulator for LCD drive: 3.2, 3.3, 3.4, 4.4, 4.5, 4.6, 5.0V selectable (BU9798KV/GUW)
6) Support Split Supply for Logic (VDD) and LCD (VLCD)
7) Integrated LED driver circuit
8) Segment terminals operation, segment output mode/GPO output mode selectable
9) Segment terminals operation, segment output mode/LED output mode selectable (BU9798KV/GUW)
10) Support PWM source select, external clock or internal clock
Resolution 8bit mode/12bit mode selectable (BU9798KV/GUW)
Resolution 8bit mode (BU97930MUV, BU97931FV)
11) Low power consumption design
12) Support standby mode
13) Integrated Power-On-Reset circuit (POR).
14) No external component
15) Support Independent blink function
Blink frequency 1.6, 2.0, 2.6, 4.0Hz selectable
16) Operating power supply : 1.8 ~ 3.6V
17) LCD drive power supply : 2.7 ~ 5.5V (BU97930MUV, BU97931FV)
: 3.3 ~ 5.5V (BU9798KV/GUW)
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
1/23
2010.04 - Rev.A




BU9798GUW pdf, 반도체, 판매, 대치품
BU97930MUV,BU97931FV,BU9798KV,BU9798GUW,BU97500KV
Technical Note
Electrical Characteristics
<BU97930MUV>
DC characteristics (Ta=-40 ~ 85 °C, VDD=1.8V ~ 3.6V, VLCD=2.7V ~ 5.5V, VSS=0)
Parameter
Limits
Symbol
Unit
MIN TYP MAX
Conditions
“H” level input voltage
VIH 0.8VDD -
VDD V SD, SCL, CSB, CLKIN, INHb
“L” level input voltage
VIL VSS
- 0.2VDD V SD, SCL, CSB, CLKIN, INHb
Hysteresis width
“H” level input current
“L” level input current
“H” level output voltage (*2)
“L” level output voltage (*2)
Current consumption (*1)
VH -
IIH1 -
IIL1
VOH1
VOH2
VOH3
VOL1
-5
VLCD
-0.4
VLCD
-0.4
VLCD
-0.6
-
VOL2
-
VOL3
-
VOL4
-
IstVDD
-
IstVLCD
-
0.2
-
-
-
-
-
-
-
-
0.34
3
0.5
IVDD1
-
8
IVDD2
-
30
IVLCD1
-
10
IVLCD2
*1 Power save mode 1 and frame inversion setting
*2 Iload: In case, load current from only one port
-
30
- V SCL, INHb, VDD=3.3V, Ta=25°C
5
µA
SD, SCL, CSB, CLKIN,
INHb, VI=3.6V
-
µA
SD, SCL, CSB, CLKIN,
INHb, VI=0V
-
V
Iload=-50µA, VLCD=5.0V
SEG0 ~ SEG26
-
V
Iload=-50µA, VLCD=5.0V,
COM0 ~ COM3
-
V
Iload=-1mA,VLCD=5.0V,
SEG23 ~ SEG26(GPO mode)
0.4
V
Iload= 50µA, VLCD=5.0V,
SEG0 ~ SEG26
0.4
V
Iload= 50µA, VLCD=5.0V,
COM0 ~ COM3
0.5
V
Iload=1mA, VLCD=5.0V,
SEG23 ~ SEG26(GPO mode)
0.5
V
Iload=20mA, VLCD=5.0V,
LED
10
µA
Input terminal ALL’L’,
Display off, Oscillation off
5
µA
Input terminal ALL’L’,
Display off, Oscillation off
VDD=3.3V, Ta=25°C, 1/3bias, fFR=64Hz,
15 µA PWM generate off,
All output pin open
VDD=3.3V, Ta=25°C, 1/3bias, fFR=64Hz,
45 µA PWM Frequency=500Hz setting,
All output pin open
VDD=5.0V, Ta=25°C, 1/3bias, fFR=64Hz,
15 µA LED generate off,
All output pin open
VDD=5.0V, Ta=25°C, 1/3bias, fFR=64Hz,
48 µA PWM Frequency=500Hz setting,
All output pin open
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
4/23
2010.04 - Rev.A

4페이지










BU9798GUW 전자부품, 판매, 대치품
BU97930MUV,BU97931FV,BU9798KV,BU9798GUW,BU97500KV
Technical Note
Oscillation Frequency Characteristics (Ta=-40 ~ 85°C, VDD=1.8V ~ 3.6V, VLCD=2.7V ~ 5.5V, VSS=0)
Parameter
Limits
Symbol
Unit
MIN MIN MIN
Conditions
Frame frequency 1
fFR1
57.6
64
70.4 Hz VDD=3.3V, Ta=25°C, fFR=64Hz setting
Frame frequency 2
fFR2
51.2
64
73.0 Hz VDD=2.5 ~ 3.6V fFR=64Hz setting
Frame frequency 3
fFR3
45.0
-
64 Hz VDD=1.8 ~ 2.5V fFR=64Hz setting
MPU interface Characteristics (Ta=-40 ~ 85°C, VDD=1.8V ~ 3.6V, VLCD=2.7V ~ 5.5V, VSS=0)
Parameter
Symbol
Limits
Unit
MIN TYP MAX
Conditions
Input rise time
tr - - 50 ns
Input fall time
tf - - 50 ns
SCL cycle time
tSCYC 250 - - ns
“H” SCL pulse width
tSHW
50
- - ns
“L” SCL pulse width
tSLW
50
- - ns
SD setup time
tSDS
50
- - ns
SD hold time
tSDH
50
- - ns
CSB setup time
tCSS
50
- - ns
CSB hold time
tCSH
50
- - ns
“H” CSB pulse width
tCHW
50
- - ns
tCHW
CSB
SCL
SD
tCSS
tf
tSLW
tSCYC
tSHW
tSDS tSDH
tr
tCSH
Fig.2 Serial Interface Timing
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
7/23
2010.04 - Rev.A

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BU9798GUW

Multifunction Segment Drivers

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