Datasheet
Serial EEPROM Series Standard EEPROM
WLCSP EEPROM
BU9880GUL-W
(64Kbit)
●Package
W(Typ.) x D(Typ.) x H(Max.)
●General
Description
BU9880GUL-W is a serial EEPROM of I
2
C BUS interface method.
●Features
■
Completely conforming to the world standard I
2
C BUS.
All controls available by 2 ports of serial clock (SCL) and
serial data (SDA)
■
Other devices than EEPROM can be connected to the same port,
saving microcontroller port.
■
1.7V to 5.5V single power source action most suitable for battery use.
■
FAST MODE 400kHz at 1.7V to 5.5V
■
Page write mode useful for initial value write at factory shipment.
■
Auto erase and auto end function at data rewrite.
■
Low current consumption
At write operation (5.0V)
: 0.5mA (Typ.)
At read operation (5.0V)
: 0.2mA (Typ.)
At standby operation (5.0V) : 0.1µA (Typ.)
■
Write mistake prevention function
Write (write protect) function added
Write mistake prevention function at low voltage
■
Data rewrite up to 1,000,000 times
■
Data kept for 40 years
■
Noise filter built in SCL / SDA terminal
■
Shipment data all address FFh
●Page
Write
Product number
BU9880GUL-W
VCSP50L1
1.98mm x 1.59mm x 0.55mm
Number of pages
32Byte
●Absolute
Maximum Ratings
(Ta=25℃)
Parameter
Impressed voltage
Permissible dissipation
Storage temperature range
Action temperature range
Terminal voltage
symbol
V
CC
Pd
Tstg
Topr
－
Ratings
-0.3 to 6.5
220
-65 to 125
-40 to 85
-0.3 to V
CC
+1.0
Unit
V
mW
℃
℃
V
The Max value of Terminal Voltage is not over 6.5V.
When using at Ta=25℃or higher, 2.2mW to be reduced per 1℃
Remarks
●Memory
cell characteristics(Ta=25℃,
Vcc=1.7V to 5.5V)
Limits
Parameter
Min.
Typ.
Number of data rewrite times
*1
Data hold years
*1
Max.
－
－
Unit
Times
Years
1,000,000
40
－
－
Shipment data all address FFh
*1 Not 100% TESTED
●Recommended
Operating Ratings
Parameter
Power source voltage
Input voltage
Symbol
V
CC
V
IN
Ratings
1.7 to 5.5
0 to V
CC
Unit
V
○Product
structure：Silicon monolithic integrated circuit
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
○This
product is not designed protection against radioactive rays
1/22
TSZ02201-0R2R0G100340-1-2
21.AUG.2012 Rev.001
BU9880GUL-W
(64Kbit)
●Electrical
Characteristics
(Unless otherwise specified Ta=-40℃ to 85℃, V
CC
=1.7V to 5.5V)
Limits
Parameter
Symbol
Unit
Min
Typ.
Max.
"H" Input Voltage1
"L" Input Voltage1
"L" Output Voltage1
"L" Output Voltage2
Input Leakage Current
Output Leakage Current
V
IH1
V
IL1
V
OL1
V
OL2
I
LI
I
LO
I
CC1
Current consumption
at action
I
CC2
I
SB
0.7V
CC
－0.3
－
－
－1
－1
－
－
－
－
－
－
－
－
－
－
－
－
V
CC
+1.0
0.3V
CC
0.4
0.2
1
1
2.0
0.5
2.0
V
V
V
V
µA
µA
mA
mA
µA
Datasheet
Condition
I
OL
=3.0mA, 2.5V≦V
CC
≦5.5V(SDA)
I
OL
=0.7mA, 1.7V≦V
CC
＜2.5V(SDA)
V
IN
=0V to V
CC
V
OUT
=0V to V
CC
(SDA)
V
CC
=5.5V , fSCL =400kHz, tWR=5ms
Byte Write, Page Write
V
CC
=5.5V , fSCL =400kHz
Random read, Current read,
Sequential read
V
CC
=5.5V , SDA・SCL=V
CC
, WP=GND
A0,A1,A2=GND
Standby Current
●Action
timing characteristics
(Unless otherwise specified Ta=-40℃ to 85℃½V
CC
=1.7V to 5.5V)
Limits
Parameter
Symbol
Min.
Typ.
SCL Frequency
Data clock "High" time
Data clock "Low" time
SDA, SCL rise time *1
SDA, SCL fall time
*1
Start condition hold time
Start condition setup time
Input data hold time
Input data setup time
Output data delay time
Output data hold time
Stop condition data setup time
Bus release time before transfer start
Internal write cycle time
Noise removal valid period (SDA,SCL terminal)
WP hold time
WP setup time
WP valid time
*1 : Not 100% TESTED
Max.
400
－
－
0.3
0.3
－
－
－
－
0.9
－
－
－
5
0.1
－
－
－
Unit
kHz
µs
µs
µs
µs
µs
µs
ns
ns
µs
µs
µs
µs
ms
µs
ns
µs
µs
fSCL
tHIGH
tLOW
tR
tF
tHD:STA
tSU:STA
tHD:DAT
tSU:DAT
tPD
tDH
tSU:STO
tBUF
tWR
tI
tHD:WP
tSU:WP
tHIGH:WP
－
0.6
1.2
－
－
0.6
0.6
0
100
0.1
0.1
0.6
1.2
－
－
0
0.1
1.0
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
2/22
TSZ02201-0R2R0G100340-1-2
21.AUG.2012 Rev.001
BU9880GUL-W
(64Kbit)
●Sync
Data Input / Output Timing
tR
SCL
tHD :STA
SDA
tSU :DAT
tLOW
tHD :DAT
tF
tHIGH
Datasheet
SCL
DATA(1)
SDA
tBUF
tPD
tDH
DATA(n)
ACK
ACK
tWR
D1
D0
(Input)
SDA
WP
Stop condition
(Output)
○Input
read at the rise edge of SCL
○Data
output in sync with the fall of SCL
tSU
：
WP
tHD
：
WP
Figure 1-(a) Sync data input / output timing
Figure 1-(d) WP timing at write execution
SCL
tSU :STA
SDA
tHD :STA
tSU :STO
SCL
DATA(1)
SDA
D1
D0
ACK
tHIGH:WP
WP
DATA(n)
ACK
tWR
START BIT
STOP BIT
Figure 1-(b) Start - stop bit timing
○At
write execution, in the area from the D0 taken clock rise
of the first DATA(1), to tWR, set WP= 'LOW'.
○By
setting WP "HIGH" in the area, write can be cancelled.
When it is set WP = 'HIGH' during tWR, write is forcibly ended,
and data of address under access is not guaranteed, therefore write it
once again.
SCL
SDA
D0
ACK
WRITE DATA(n)
STOP
CONDITION
t
WR
START
CONDITION
Figure 1-(e) WP timing at write cancel
Figure 1-(c) Write cycle timing
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
3/22
TSZ02201-0R2R0G100340-1-2
21.AUG.2012 Rev.001
BU9880GUL-W
(64Kbit)
●Block
Diagram
A0 1
13bit
Datasheet
64Kbit
EEPROM
array
8bit
8
Vcc
A1 2
Adddress
decoder
13bit
Slave - word
address register
Data
register
7
WP
START
STOP
A2
3
Control circuit
ACK
6
SCL
GND
4
High voltage
generating circuit
Power source
voltage detection
5
SDA
●Pin
Configuration
(BOTTOM VIEW)
C
VSS
B
SDA
A
SCL
1
●Pin
Descriptions
Land No.
C3
C2
C1
B3
B1
A3
A2
A1
Terminal name
A1
A2
GND
A0
SDA
Vcc
WP
SCL
Input / output
Input
Input
-
Input
Input / output
-
Input
Input
Slave address
Slave address
Reference voltage of all input / output
Slave address
Slave and word address, Serial data input serial data output
Power Supply
Write protect terminal
Serial clock input
Function
WP
2
V
CC
3
A0
A2
A1
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
4/22
TSZ02201-0R2R0G100340-1-2
21.AUG.2012 Rev.001
BU9880GUL-W
(64Kbit)
●Typical
Performance Curves
(The following values are Typ. ones.)
Datasheet
Figure 2. ‘H’ input voltage V
IH
(A0,A1,A2,SCL,SDA,WP)
Figure 3. ‘L’ input voltage V
IL
(A0,A1,A2,SCL,SDA,WP)
Figure 4. ‘L’ output voltage V
OL
-I
OL
(Vcc=1.7V)
Figure 5. ‘L’ output voltage V
OL
-I
OL
(Vcc=2.5V)
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
5/22
TSZ02201-0R2R0G100340-1-2
21.AUG.2012 Rev.001
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