High Reliability Series Serial EEPROM Series
WL-CSP EEPROMs family
SPI BUS
BR25S128GUZ-W
●Description
BR25S128GUZ-W is a 16K×8bit serial EEPROM of SPI BUS interface method.
No.11001JBT06
●Features
1) High speed clock action up to 10MHz (Max.)
2) Wait function by HOLDB terminal
3) Part or whole of memory arrays settable as read only memory area by program
4) 1.7½5.5V single power source action most suitable for battery use
5) 64Byte page write mode useful for initial value write at factory shipment
6) For SPI bus interface (CPOL, CPHA)=(0, 0), (1, 1)
7) Auto erase and auto end function at data rewrite
8) Low current consumption
At write action (5.0V)
: 1.5mA (Typ.)
At read action (5.0V)
: 1.0mA (Typ.)
At standby action (5.0V)
: 0.1μA (Typ.)
9) Address auto increment function at read action
10) Write mistake prevention function
Write prohibition at power on
Write prohibition by command code (WRDI)
Write prohibition by WPB pin
Write prohibition block setting by status registers (BP1, BP0)
Write mistake prevention function at low voltage
11) VCSP35L2 Package
12) Data at shipment Memory array: FFh, status register WPEN, BP1, BP0 : 0
13) Data kept for 40 years
14) Data rewrite up to 1,000,000 times
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
1/16
2011.11 - Rev.B
BR25S128GUZ-W
●Absolute
maximum ratings (Ta=25℃)
Parameter
Impressed voltage
Permissible
dissipation
Storage
temperature range
Operating
temperature range
Terminal voltage
Symbol
Vcc
Pd
Tstg
Topr
－
Limits
-0.3½+6.5
VCSP35L2 220
-65½+125
-40½+85
-0.3½Vcc+0.3
※
2
※
1
Technical Note
●Recommended
action conditions
Unit
V
mW
℃
℃
V
Parameter
Power source
voltage
Input voltage
Symbol
Vcc
V
IN
Limits
1.7½5.5
V
0½Vcc
Unit
●Input
/ output capacity (Ta=25℃, frequency=5MHz)
Parameter
Input capacity
※
1
Symbol Conditions Min. Max. Unit
C
IN
V
IN
=GND
－
8
pF
C
OUT
V
OUT
=GND
－
8
※1
Degradation is done at 4.5mW, for operation above 25℃.
※2
The Max value of Terminal Voltage is not over 6.5V.
Output capacity
※
1
●Memory
cell characteristics (Ta=25℃ , Vcc=1.7V½5.5V)
Limits
Parameter
Unit
Min.
Typ.
Max.
Number of data
1,000,000
Time
－
－
rewrite times
※
1
Data hold years
※
1
※1
Not 100% TESTED.
※1
Not 100% TESTED.
40
－
－
Year
●Electrical
characteristics (Unless otherwise specified, Ta=-40½+85℃, Vcc=1.7½5.5V)
Limits
Symb
Parameter
Unit
ol
Min.
Typ.
Max.
“H” Input Voltage1
“L” Input Voltage1
“L” Output Voltage1
“L” Output Voltage2
“H” Output Voltage1
“H” Output Voltage2
Input Leakage Current
Output Leakage Current
VIH1
VIL1
VOL1
VOL2
VOH1
VOH2
ILI
ILO
ICC1
Operating Current Write
ICC2
ICC3
ICC4
ICC5
ICC6
Operating Current Read
ICC7
ICC8
ICC9
ICC10
Standby Current
ISB
0.7xVcc
-0.3
0
0
Vcc-0.2
Vcc-0.2
-1
-1
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
Vcc+0.3
0.3xVcc
0.4
0.2
Vcc
Vcc
1
1
0.5
1
2
1
1
1.5
2
2
4
8
2
V
V
V
V
V
V
μA
μA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
μA
1.7≦Vcc≦5.5V
1.7≦Vcc≦5.5V
Conditions
IOL=2.1mA, 2.5≦Vcc<5.5V
IOL=1.0mA, 1.7≦Vcc<2.5V
IOH=-0.4mA, 2.5V≦Vcc<5.5V
IOH=-100μA, 1.7≦Vcc<2.5V
V
IN
=0½Vcc
V
OUT
=0½Vcc, CSB=Vcc
Vcc=1.8V,fSCK=5MHz, tE/W=5ms
Byte Write，Page Write
Vcc=2.5V,fSCK=10MHz, tE/W=5ms
Byte Write，Page Write
Vcc=5.5V,fSCK=10MHz, tE/W=5ms
Byte Write，Page Write
Vcc=1.8V,fSCK=5MHz, SO=OPEN
Read, Read Status Register
Vcc=2.5V,fSCK=2MHz, SO=OPEN
Read, Read Status Register
Vcc=2.5V,fSCK=5MHz, SO=OPEN
Read, Read Status Register
Vcc=2.5V,fSCK=10MHz, SO=OPEN
Read, Read Status Register
Vcc=5.5V,fSCK=5MHz, SO=OPEN
Read, Read Status Register
Vcc=5.5V,fSCK=10MHz, SO=OPEN
Read, Read Status Register
Vcc=5.5V,fSCK=20MHz, SO=OPEN
Read, Read Status Register
Vcc=5.5V, CSB=Vcc, SCK=SI=Vcc or GND
HOLDB=WPB=Vcc, SO=OPEN
○Radiation
resistance design is not made
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
2/16
2011.11 - Rev.B
BR25S128GUZ-W
●Block
diagram
CSB
SC
K
WRITE
INHIBITION
SI
INSTRUCTION
REGISTER
ADDRESS
REGISTER
DATA
REGISTER
14bit
ADDRESS
DECODER
R/W
AMP
14bit
131,072 bit
HIGH VOLTAGE
GENERATOR
INSTRUCTION DECODE
CONTROL CLOCK
GENERATION
VOLTAGE
DETECTION
Technical Note
HOLDB
WPB
EEPROM
8bit
8bit
SO
Fig.1
Block diagram
●Operating
timing characteristics (Ta=-40½+85℃, unless otherwise specified, load capacity C
L
=30pF)
1.7≦Vcc<2.5V
1.8≦Vcc<2.5V
2.5≦Vcc≦5.5V
Parameter
Symbol
Min. Typ. Max. Min. Typ. Max. Min. Typ. Max.
SCK frequency
SCK high time
SCK low time
CSB high time
CSB setup time
CSB hold time
SCK setup time
SCK hold time
SI setup time
SI hold time
Data output delay time
Output hold time
Output disable time
HOLDB setting setup time
HOLDB setting hold time
HOLDB release setup time
HOLDB release hold time
Time from HOLDB to output High-Z
Time from HOLDB to output change
SCK rise time
SCK fall time
OUTPUT rise time
OUTPUT fall time
Write time
※
Unit
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
μs
μs
ns
ns
ms
f
SCK
t
SCKWH
t
SCKWL
t
CS
t
CSS
t
CSH
t
SCKS
t
SCKH
t
DIS
t
DIH
t
PD
t
OH
t
OZ
t
HFS
t
HFH
t
HRS
t
HRH
t
HOZ
t
HPD
t
RC
t
FC
t
RO
t
FO
t
E/W
-
125
125
250
100
100
100
100
30
50
-
0
-
100
100
100
100
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
3
-
-
-
-
-
-
-
-
-
125
-
200
-
-
-
-
100
100
1
1
100
100
5
-
80
80
90
60
60
50
50
20
20
-
0
-
0
20
0
20
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
5
-
-
-
-
-
-
-
-
-
80
-
80
-
-
-
-
80
80
1
1
50
50
5
-
40
40
40
30
30
20
20
10
10
-
0
-
0
10
0
10
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
10
-
-
-
-
-
-
-
-
-
40
-
40
-
-
-
-
40
40
1
1
40
40
5
※
1
※
1
※
1
※
1
1 NOT 100% TESTED
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
3/16
2011.11 - Rev.B
BR25S128GUZ-W
●Pin
assignment and description
Terminal
name
CSB
SO
WPB
GND
SI
SCK
HOLDB
Vcc
Technical Note
Input/Output
Input
Output
Input
-
Input
Input
Input
-
Function
Chip select input
Serial data output
Write protect input
Write command is prohibited
Write status register command is prohibited
All input / output reference voltage, 0V
Start bit, ope code, address, and serial data input
Serial clock input
Hold input
Command communications may be suspended temporarily (HOLD status)
1
A1
NC
B1
SI
B2
HOLDB
B3
Vcc
B
C1
GND
C2
SO
C3
CSB
C
D1
NC
D2
WPB
D3
NC
D
2
A2
SCK
3
A3
NC
A
Power source to be connected
Fig.2 Pin assignment diagram
(Bottom View)
●Sync
data input / output timing
tCS
tCSS
tCS
CSB
tSCKS
tSCKWL
tSCKWH
tRC
tFC
CSB
SCK
SI
tPD
tCSH tSCKH
SCK
tDIS tDIH
SI
SO
High-Z
tOH
tRO,tFO
tOZ
SO
High-Z
Fig.3 Input timing
SI is taken into IC inside in sync with data rise edge of
SCK. Input address and data from the most significant bit
MSB
Fig.4
Input / Output timing
SO is output in sync with data fall edge of SCK. Data is
output from the most significant bit MSB.
CSB
"H"
"L"
tHFS
tHFH
tHRS tHRH
SCK
tDIS
SI
n+1
tHOZ
High-Z
tHPD
n
n-1
SO
Dn+1
Dn
Dn
Dn-1
HOLDB
Fig.5
HOLD timing
●AC
measurement conditions
Parameter
Load capacity
Input rise time
Input fall time
Input voltage
Input / Output judgment voltage
Symbol
C
L
-
-
-
-
Limits
Min.
Typ.
Max.
-
-
30
-
-
50
-
-
50
0.2Vcc/0.8Vcc
0.3Vcc/0.7Vcc
Unit
pF
ns
ns
V
V
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
4/16
2011.11 - Rev.B
BR25S128GUZ-W
●Characteristic
data (The following characteristic data are Typ. Values.)
6
5
4
VIH[V]
3
2
1
0
0
1
2
3
Vcc[V]
4
5
6
Technical Note
6
1
Ta=-40℃
Ta=25℃
Ta=85℃
5
SPEC
VIL[V]
Ta=-40℃
Ta=25℃
Ta=85℃
VOL1[V]
0.8
0.6
Ta=-40℃
Ta=25℃
Ta=85℃
4
3
2
1
0
0
1
2
3
Vcc[V]
4
5
6
SPEC
0.4
0.2
0
0
1
2
3
IOL[mA]
4
5
6
SPEC
Fig.6
"H" input voltage VIH(CSB,SCK,SI,HOLDB,WPB) Fig.7
"L"
input voltage VIL(CSB,SCK,SI,HOLDB,WPB)
2.6
Fig.8 "L" output voltage VOL1 (Vcc=2.5V)
1.5
1.5
2.5
VOH1[V]
1
ILI[μA]
SPEC
1
ILO[μA]
SPEC
2.4
0.5
Ta=-40℃
Ta=25℃
Ta=85℃
0.5
Ta=-40℃
Ta=25℃
Ta=85℃
SPEC
2.3
Ta=-40℃
Ta=25℃
Ta=85℃
0
0
2.2
0
0.4
IOH[mA]
0.8
1.2
-0.5
0
1
2
3
Vcc[V]
4
5
6
-0.5
0
1
2
3
4
VOUT[V]
5
6
Fig.9 "H" output voltage VOH1 (Vcc=2.5V)
4
Fig.10 Input leak current ILI(CSB,SCK,SI,HOLDB,WPB)
10
Fig.11 Output leak current ILO(SO)
5
DATA=00h
SPEC
3
ICC3[mA]
ICC10[mA]
8
6
4
2
DATA=00h
SPEC
4
2
ISB[μA]
Ta=-40℃
Ta=25℃
Ta=85℃
Ta=-40℃
Ta=25℃
Ta=85℃
3
2
1
0
-1
Ta=-40℃
Ta=25℃
Ta=85℃
SPEC
1
0
0
1
2
3
Vcc[V]
4
5
6
0
0
1
2
3
Vcc[V]
4
5
6
0
1
2
3
Vcc[V]
4
5
6
Fig.12 Current consumption at WRITE operation ICC3
1000
Fig.13 Current Consumption at READ operation ICC10 Fig.14 Current Consumption at standby operation IS
140
140
Ta=-40℃
Ta=25℃
Ta=85℃
tSCKWH [ns]
100
fSCK[MHz]
SPEC
SPEC
SPEC
Ta=-40℃
Ta=25℃
Ta=85℃
tSCKWL [ns]
120
100
80
60
40
20
0
0
1
2
3
Vcc[V]
4
5
6
0
1
2
3
Vcc[V]
120
100
80
60
40
20
0
Ta=-40℃
Ta=25℃
Ta=85℃
SPEC
10
SPEC
SPEC
SPEC
SPEC
SPEC
1
0
1
2
3
Vcc[V]
4
5
6
4
5
6
Fig.15 SCK frequency fSCK
300
120
Fig.16 SCK high time tSCKWH
120
Fig.17 SCK low time tSCKWL
SPEC
100
80
SPEC
250
200
tCS[ns]
150
100
100
SPEC
Ta=-40℃
Ta=25℃
Ta=85℃
Ta=-40℃
Ta=25℃
Ta=85℃
tCSH[ns]
Ta=-40℃
Ta=25℃
Ta=85℃
80
tCSS[ns]
SPEC
60
40
SPEC
60
40
20
0
SPEC
50
0
0
1
2
SPEC
SPEC
SPEC
20
0
3
Vcc[V]
4
5
6
0
1
2
3
Vcc[V]
4
5
6
0
1
2
3
Vcc[V]
4
5
6
Fig.18 CSB high time tCS
Fig.19 CSB setup time tCSS
Fig.20 CSB hold time tCSH
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© 2011 ROHM Co., Ltd. All rights reserved.
5/16
2011.11 - Rev.B
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