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BU97981MUV PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 BU97981MUV
기능 Multi-function LCD Segment Drivers
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BU97981MUV 데이터시트, 핀배열, 회로
Datasheet
Multi-function LCD Segment Drivers
BU97981xxx Series MAX 196 Segments (SEG49xCOM4)
Features
Integrated RAM for Display Data (DDRAM):
49 x4 Bit (Max 196 Segment)
LCD Drive Output:
4 Common Output, Max 49 Segment Output
Integrated 3ch LED Driver Circuit
Segment/ LED (Max 3port) Output Mode Selectable
Segment/ GPO (Max 31port) Output Mode
Selectable
Support PWM Generation from Ext. or Internal
Clock
(Resolution: 8bit Mode/12bit Mode Selectable)
Support Standby Mode
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.)
DSC
DVC
Car audio
Home Electrical Appliance
Meter Equipment
etc.
Key Specifications
Supply Voltage Range:
+1.8V to +3.6V
LCD Drive Power Supply Range: +3.3V to +5.5V
Operating Temperature Range: -30°C to +75°C
Max Segments:
BU97981KV
196 Segments
BU97981MUV
168 Segments
BU97981GU
196 Segments
Max GPO Outputs:
BU97981KV
31port
BU97981MUV
27port
BU97981GU
31port
Max LED Drive Outputs:
BU97981KV
3port
BU97981MUV
3port
BU97981GU
3port
Display Duty:
Static. 1/3, 1/4 Selectable
Bias:
Static, 1/3
Integrated Regulator for LCD Drive:
3.2, 3.3, 3.4, 4.4, 4.5, 4.6, 5.0V Selectable
Interface:
3wire Serial Interface
Typical Application Circuit
BU97981KV LED/GPO using case
LED : 3port
GPO : 5port
LCD :164seg
VLED
5.0V 3.3V
VLCD
VDD
SEG48 (LED1)
SEG47 (LED2)
SEG46 (LED3)
BU97981KV
*Reading resistor value
Please detect the value according to
inpu curremt value.
(cuurent MAX = 20mA)
SEG45(GPO1) to
SEG41(GPO5)
Other
device
VSS1
VSS2
TEST1 CSB SCL SD INHb CLKIN
SEG0 to SEG40
COM0 to COM3
LCD
Input signal from cintroller
CLKIN
Extenal CLK input terminal
In case being unused, connect to
VSS or be opened.
Figure 1. Typical Application Circuit
Product structureSilicon monolithic integrated circuit
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ2211114001
This product has no designed protection against radioactive rays.
1/46
TSZ02201-0A2A0D300110-1-2
10.Apr.2015 Rev.006




BU97981MUV pdf, 반도체, 판매, 대치품
BU97981xxx Series MAX 196 segments (SEG49xCOM4)
Block Diagram / Pin Arrangement / Pin Description
Datasheet
BU97981GU
VLCD
INHb
CLKIN
VDD
VSS
VSS2
COM0……COM3 SEG0 ……………………………… SEG48
LCD voltage
Generator
Ref Voltage
Circuit
Vreg
LCD
BIAS
SELECTOR
common
driver
Segment Segment Segment
driver driver/GPO driver/LED
GPO/LED
Controller
common blink timing
counter generator
DDRAM
GPO data latch
PWM
Generator
VSS
OSCILLATOR
Power On Reset
Command register
Data Decoder
serial inter face
IF FILTER
Output
Controller
CSB
SD
Figure 6. Block Diagram
SCL
PWMOUT
12345678
H SEG4 SEG5 SEG9 SEG11 SEG14 SEG16 SEG18 SEG20
G SEG2 SEG3 SEG7 SEG8 SEG12 SEG17 SEG19 SEG21
F SEG0 SEG1 SEG6 SEG10 SEG13 SEG22 SEG23 SEG25
E COM2 COM0 COM1 COM3 SEG15 SEG26 SEG24 SEG27
D VLCD VDD INHB SEG47 SEG31 SEG29 SEG28 SEG30
C VSS1 SDA SCL SEG45 SEG42 SEG38 SEG33 SEG32
B (NC) CLKIN VSS2 SEG44 SEG40 SEG39 SEG35 SEG34
A
PWM
CSB
SEG48 SEG46 SEG43 SEG41 SEG37 SEG36
OUT
Figure 7. Pin Configuration (TOP VIEW)
Terminal
CSB
SCL
SD
VDD
CLKIN
VSS1
VLCD
I/O
I
I
I
-
I
-
-
INHb
I
PWMOUT
COM0 to 3
SEG0 to 14
SEG15 to 45
SEG46 to 48
VSS2
O
O
O
O
O
-
Table 3. Pin Description
Unused case
-
-
-
-
OPEN / VSS
-
-
VDD
OPEN
OPEN
OPEN
OPEN
OPEN
GND
Function
Chip select: "L" active
Serial data transfer clock
Input serial data
Power supply for LOGIC
External clock input terminal (for display/PWM using selectable)
Support Hi-Z input mode at internal clock mode
GND
Power supply for LCD
Display turning on/off select terminal
H: turning on display, L: turning off display
INHb = “L”: All SEG/COM terminal : output VSS level
GPO terminal : output VSS level
LED drive terminal : output Hi-Z
PWM output for LED2 group
COMMON output for LCD
SEGMENT output for LCD
SEGMENT output for LCD/GPO
SEGMENT output for LCD/LED driver
GND (for SEG46-48 / LED driver)
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
4/46
TSZ02201-0A2A0D300110-1-2
10.Apr.2015 Rev.006

4페이지










BU97981MUV 전자부품, 판매, 대치품
BU97981xxx Series MAX 196 segments (SEG49xCOM4)
Datasheet
Electrical Characteristics Continued
DC characteristics (Ta=-30°C to +75°C, VDD=1.8V to 3.6V, VLCD=3.3V to 5.5V, VSS=0)
(BU97981MUV)
Parameter
Symbol
Min
Limits
Typ
Max
Unit
Conditions
“H” level Input Voltage
VIH 0.8VDD -
VDD
V SD, SCL, CSB, TEST1,CLKIN, INHb
“L” level Input Voltage
VIL VSS
- 0.2VDD V SD, SCL, CSB, TEST1,CLKIN, INHb
Hysteresis Width
“H” level Input Current
“L” level Input Current
“H” Level Output Voltage
(Note1&3)
VH - 0.2 -
V SCL, INHb, VDD=3.3V, Ta=25°C
IIH1 -
IIL1 -5
VOH1
VLCD
-0.4
VOH2
VLCD
-0.4
VOH3
VLCD
-0.6
-
-
-
-
-
5
µA
SD, SCL, CSB, CLKIN, INHb,
VI=3.6V
-
µA
SD, SCL, CSB, CLKIN, INHb, TEST1,
VI=0V
Iload=-50µA, VLCD=5.0V
- V SEG0 to SEG41,
Unused integrated regulator
Iload=-50µA, VLCD=5.0V,
- V COM0 to COM3,
Unused integrated regulator
Iload=-1mA,VLCD=5.0V,
- V SEG12 to SEG38 (GPO mode)
Unused integrated regulator
VOL1
-
- 0.4 V Iload= 50µA, VLCD=5.0V, SEG0 to SEG41
VOL2
-
- 0.4 V Iload= 50µA, VLCD=5.0V, COM0 to COM3
“L” Level Output Voltage (Note3) VOL3
-
-
0.5
V
Iload=1mA, VLCD=5.0V,
SEG12 to SEG38 (GPO mode), PWMOUT
VOL4
-
0.11 0.5
V
Iload=20mA, VLCD=5.0V,
SEG39 to SEG41 (LED drive mode)
IstVDD -
3
10
µA
Input terminal ALL‟L‟,
Display off, Oscillation off
IstVLCD -
0.5 5
µA
Input terminal ALL‟L‟,
Display off, Oscillation off
VDD=3.3V, Ta=25°C, 1/3bias, fFR=64Hz,
IVDD1 -
8 15 µA PWM generate off,
All output pin open
VDD=3.3V, Ta=25°C, 1/3bias, fFR=64Hz,
IVDD2 -
90 130 µA PWM Frequency=500Hz setting,
Current Consumption (Note2)
IVLCD1 -
All output pin open
VLCD=5.0V, Ta=25°C, 1/3bias, fFR=64Hz,
10
15
µA
Unused Integrated regulator,
LED generate off,
All output pin open
VLCD=5.0V, Ta=25°C, 1/3bias, fFR=64Hz,
IVLCD2 -
25
40
µA
Used Integrated regulator,
LED generate off,
All output pin open
VLCD=5.0V, Ta=25°C,1/3bias, fFR=64Hz,
IVLCD3 -
30
48
µA
Used Integrated regulator,
PWM Frequency=500Hz setting,
All output pin open
(Note1) Integrated regulator using case, please add load regulation value to output voltage listed above.
(Note2) Power save mode 1 and frame inversion setting
(Note3) Iload: In case, load current from only one port
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
7/46
TSZ02201-0A2A0D300110-1-2
10.Apr.2015 Rev.006

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