Rainbow Electronics bu9882-w User Manual
EDID EEPROM for DDC2TM monitor
01W145A
BU9882-
W/F-W/FV-W
Description Dimension (Units : mm)
BU9882-W/F-W/FV-W is EEPROM for storing EDID
based on DDC2
TM
of PC monitor. Due to the independent
TM
BU9882-W
operating ports, and memory, this EEPROM can
simultaneously communicate with two personal computers.
19.4 ± 0.3
14 8
There is also a switch that connects the PC to CPU in the
monitor side, so that the PC can control the monitor.
Features
1)128word x 8bit x 2port configuration of 2kbit serial EEPROM
2) 2PC connection possible
3) 2port simultaneous read function when dual port used.
4) For DDC2
TM
5) Wide range of power supply voltage (2.5~5.5V)
0.51Min.
4.25 ± 0.3
3.2 ± 0.2
2.54
DIP14
6) Page write function (Max. 8Byte)
7) Low current consumption
Operating (5V) : 1.5mA (Typ.)
Stand by (5V) : 0.1µA (Typ.)
8) Inadvertent write protection function
Built-in noise filter to SCL, SDA pin
Write protection at low power supply voltage
9) High reliable Double-Cell system
BU9882F-W
14
6.2±0.3
4.4±0.2
1
1.5±0.1
1.27
0.11
0.4±0.1
8.7±0.2
Applications
CRT monitor, LCD monitor, LCD projector
SOP14
Absolute Maximum Ratings (Ta=25˚C)
Parameter Symbol
Supply Voltage
Power Dissipation
Operating Temperature Range
Storage Temperature Range
Terminal Voltage
∗1 Derating : 9.5mW/˚C for operation above Ta=25˚C ∗2 Derating : 4.5mW/˚C for operation above Ta=25˚C
∗3 Maximum: 6.8V
Vcc
Pd
Topr
Tstg
—
Limits
–0.3 ~
950 (DIP14)
450 (SOP14)
–40
~
–65
~
~
125
VCC+1.0 –0.3
6.5
85
Unit
BU9882FV-W
V
∗1
∗2
mW
˚C
˚C
∗3
V
5.0 ± 0.2
4.4 ± 0.2
6.4 ± 0.3
1
0.1
0.65
1.15 ± 0.1
SSOP-B14
Recommended Operating Conditions (Ta=25˚C)
Parameter
Supply Voltage 5.5 V
Input Voltage VCC+1.0 V
Symbol
VCC
VIN
Min. Max. Unit
2.5
0
Typ.
—
—
71
0.5 ± 0.1
8
7
8714
0.22 ± 0.1
6.5 ± 0.3
0.15±0.1
0.1
0.3Min.
0.15 ± 0.1
0.1
7.62
0° ~ 15°
0.3Min.
1
± 0.
0.3
November, 2001
Electrical characteristics (Unless otherwise specified; Ta=–40 ~ 85˚C, Vcc=2.5 ~ 5.5V)
Symbol
"H" Input Voltage 1
"L" Input Voltage 1
"L" Input Voltage 2
"L" Output Voltage
Input Leak Current 1
Input Leak Current 2
Output Leak Current
Operating Current
Stand by current
∗ IOL at monitor mode (DDCENA=High) is sum of current flowed from Pull up resistance on SDA_MON side, and Pull up resistance on SDA_PC0/PC1 side.
VIH1
VIL1
VIL2
VOL1
ILI1
ILI2
ILO
ICC
ISB
Min.
2.0
—
—
—
–1
–1
–1
—
—
—
—
—
—
—
—
—
—
0.1
Max.
—
0.8
0.2VCC
0.4
1
50
1
3.0
5
Unit ConditionsTyp. Parameter
V
VCC≥4.0V
V
V
VCC<4.0V
SDA_PC0/1, IOL=3.0mA
V
µA
SCL_PC0/1, DDCENA,BANKSEL,VIN=0V~VCC+1.0V
µA
WPB
SDA_PC0/1,SCL/SDA_MON(DDCENA=GND),
µA
VOUT=0V~VCC+1.0V
fSCL=400kHz, VCC=5.5V
mA
∗
SCL/SDA_PC0/1=VCC
µA
SCL/SDA_MON=Hi—Z
DDCENA=WPB=BANKSEL=GND, DUALPCB=VCC
Application Circuit
< SINGLE Port >
PC 0 MONITOR
SCL
SDA
SCL_PCO
SDA_PCO
SCL_PC1
SDA_PC1
GND
1
2
NC
3
4
5
NC
6
7
BU9882-W/F-W/FV-W
BANK0
(1kbit)
BANK1
(1kbit)
VCC
14
WPB
13
DUALPCB
12
BANKSEL
11
DDCENA
10
SCL_MON
9
SDA_MON
8
VCC
CPU
< DUAL Port >
PC 0 MONITOR
SCL
SDA
PC 1
SCL
SDA
SCL_PCO
SDA_PCO
SCL_PC1
SDA_PC1
GND
1
2
NC
3
4
5
NC
6
7
BU9882-W/F-W/FV-W
BANK0
(1kbit)
BANK1
(1kbit)
VCC
14
WPB
13
DUALPCB
12
BANKSEL
11
DDCENA
10
SCL_MON
9
SDA_MON
8
VCC
CPU
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