ROHM BU9832GUL-W Technical data

A

High Reliability Serial EEPROMs

WL-CSP EEPROM family SPI BUS

BU9832GUL-W

●Description

BU9832GUL-W is a serial EEPROM of SPI BUS interface method.

●Features

1) High speed clock action up to 5MHz (Max.)

2) Wait function by

3) Part or whole of memory arrays settable as read only memory area by program.

4) 1.8 ~ 5.5V single power source action most suitable for battery use.

5) 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 (5V) : 1.5mA (Typ.) At read action (5V) : 1.0mA (Typ.) At standby action (5V) : 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 Write prohibition block setting by status registers (BP1, BP0) Write mistake prevention function at low voltage.

11) Data at shipment Memory array: FFh, status register WPEN, BP1, BP0 : 0

12) Data kept for 40 years.

13) Data rewrite up to 1,000,000times.

●Page write

HOLD terminal.

WP pin.

No.10001EAT16

Product number Number of pages

BU9832GUL-W

●BU9832GUL-W

Type Capacity Bit format

BU9832GUL-W

●Absolute maximum ratings (Ta=25℃)

Parameter Symbol Ratings Unit

Impressed voltage

Permissible dissipation

Storage Temperature range

Operating Temperature range

Terminal voltage

*1 When using at Ta=25℃ or higher, 220mW to be reduced per 1℃

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32 Byte

Vcc -0.3~+6.5 V

Pd 220(VCSP50L2)

Tstg -65~+125 ℃

Topr -40~+85 ℃

― -0.3~Vcc+0.3 V

Power source

voltage

8Kbit 1K×8 1.8~5.5V VCSP50L2

*1

mW

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BU9832GUL-W

● Recommended action conditions

Parameter Symbol Ratings Unit

Power source voltage Vcc 1.8~5.5

Input voltage

Vin 0~Vcc

● Memory cell characteristics (Ta=25℃, Vcc=1.8~5.5V)

Parameter

Limits

Min. Typ. Max

Technical Note

V

Unit

Number of data rewrite times *1

Data hold years *1

*1 : Not 100% TESTED

1,000,000 – – Times

40 – – Years

● Input / output capacity (Ta=25℃, frequency=5MHz)

Parameter Symbol

Input capacity

Output capacity

*1 : Not 100% TESTED

*1

C

*1

C

– 8 pF VIN=GND

IN

– 8 pF V

OUT

Limits

Min. Max

Unit Conditions

●Electrical characteristics (Unless otherwise specified, Ta=-40~+85℃, Vcc=1.8~5.5V)

Parameter

Symbol

Min. Typ. Max.

Limits

Unit

“H” input voltage 1 VIH1 0.7xVcc – Vcc+0.3 V 1.8≦Vcc≦5.5V

“L” input voltage 1 VIL1 -0.3 – 0.3xVcc V 1.8≦Vcc≦5.5V

“L” output voltage 1 VOL1 0 – 0.4 V IOL=2.1mA(Vcc=2.5V~5.5V)

“L” output voltage 2 VOL2 0 – 0.2 V IOL=150µA(Vcc=1.8V~2.5V)

=GND

OUT

Conditions

“H” output voltage 1 VOH1 Vcc-0.5 – Vcc V IOH=-0.4mA(Vcc=2.5V~5.5V)

“H” output voltage 2 VOH2 Vcc-0.2 – Vcc V IOH=-100µA(Vcc=1.8V~2.5V)

Input leak current ILI -1 – 1 µA VIN=0~Vcc

Output leak current ILO -1 – 1 µA VOUT=0~Vcc, CS =Vcc

Vcc=1.8V,fSCK=2MHz, tE/W=5ms

ICC1 – – 1.0 mA

Byte write, Page write, Write status register

Current consumption at write action

ICC2 – – 2.0 mA

Vcc=2.5V,fSCK=5MHz, tE/W=5ms Byte write, Page write, Write status register Vcc=5.5V,fSCK=5MHz, tE/W=5ms

ICC3 – – 3.0 mA

Byte write, Page write, Write status register

Current consumption at read action

ICC4 – – 1.5 mA

ICC5 – – 2.0 mA

Standby current ISB – – 2 µA

○This product is not designed for protection against radioactive rays.

Vcc=2.5V,fSCK=5MHz Read, Read status register

Vcc=5.5V,fSCK=5MHzN Read, Read status register

Vcc=5.5V SCK=SI=Vcc or=GND,SO=OPEN

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●Operating timing characteristics (Ta=-40~+85℃, unless otherwise specified, load capacity CL1=100pF)

SCK frequency

SCK high time

SCK low time

Parameter Symbol

fSCK – – 2 – – 5

tSCKWH

tSCKWL

Min. Typ. Max. Min. Typ. Max.

200 – – 85 – – ns

1.8≤Vcc≺2.5V 2.5≤Vcc≺5.5V

Technical Note

Unit

MHｚ

CS high time

CS setup time

CS hold time

SCK setup time

SCK hold time

SI setup time

SI hold time

Data output delay time1

Data output delay time2 (CL2=30pF)

Output hold time

Output disable time

HOLD setting setup time

HOLD setting hold time

HOLD release setup time

HOLD release hold time

Time from HOLD to output High-Z

Time from HOLD To output change

SCK rise time

SCK fall time

Output rise time

Output fall time

*1

Write time

*1 NOT 100% TESTED

tCS 200 – – 85 – – ns

tCSS 200 – – 90 – – ns

tCSH 200 – – 85 – – ns

tSCKS

tSCKH

200 – – 90 – – ns

tDIS 40 – – 20 – – ns

tDIH 50 – – 40 – – ns

tPD1 – – 150 – – 70 ns

tPD2 – – 145 – – 55 ns

tOH 0 – – 0 – – ns

tOZ – – 250 – – 100 ns

tHFS 120 – – 60 – – ns

tHFH 90 – – 40 – – ns

tHRS 120 – – 60 – – ns

tHRH 140 – – 70 – – ns

tHOZ – – 250 – – 100 ns

tHPD – – 150 – – 70 ns

tRC – – 1 – – 1 µs

tFC – – 1 – – 1 µs

tRO – – 100 – – 50 ns

tFO – – 100 – – 50 ns

tE/W – – 5 – – 5 ms

●AC measurement conditions

Parameter Symbol

Min. Typ. Max.

Limits

Load capacity 1 CL1 – – 100 pF

Unit

Load capacity 2 CL2 – – 30 pF

Input rise time – – – 50 ns

Input fall time – – – 50 ns

Input voltage – 0.2Vcc/0.8Vcc V

Input / Output judgment voltage – 0.3Vcc/0.7Vcc V

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A1A2A

●Sync data input / output timing

tCSS

tCS

CS

SCK

SI

SO

tSCKS

tSCKWH

tSCKWL

tDIS

tDIH

High-Z

Fig.1 Input timing

tRC

tFC

SI is taken into IC inside in sync with data rise edge of SCK. IInput address and data from the most significant bit MSB.

CS

SCK

SI

SO

tPD

tOH

Fig.2 Input / Output timing

tRO,tFO

tCSH

tSCKH

tOZ

tCS

h-Z

Hi

SO is output in sync with data fall edge of SCK. Data is output from the most significant bit MSB.

●Block diagram

CS

SCK

INSTRUCTION DECODE

CONTROL CLOCK

GENE RATI ON

SI

HOLD

INSTRUCTION

REGISTER

WPB

SO

●Pin assignment and description

VOLTAGE

DETE CTIO N

WRITE

INHIBITION

ADDRESS

REGISTER

DATA

REGISTER

Fig.4 Block diagram

Land

No.

Terminal

name

Input/

Output

A1 WPB Input

"H"

CS

"L"

SCK

SI

SO

HOLD

n+1

Dn+1

tHFS tHFH

tHOZ Dn

High-Z

tHRS tHRH

tDIS

n

tHPD

Dn Dn-1

Fig.3 HOLD timing

HIGH VOLTAGE

GENERATOR

STATUS R EGISTER

ADDRESS

11b it

DECO DER

READ/WRITE

AMP

11bit

1～64K

EEPROM

8bit 8bit

Function

Write protect input Write status register command is prohibited.

Technical Note

n-1

C

B

C1

C2 C3

B1 B3

A2 GND – All input / output reference voltage, 0V

A3 SI Input Start bit, ope code, address, and serial data input

INDEX post

3

2

1

3

Fig.5 Pin assignment diagram

B1 SO Output Serial data output

B3 SCK Input Serial clock input

C1 CS Input Chip select input

C2 Vcc – Power source to be connected

Hold input

C3 HOLD Input

Command communication may be suspended temporarily (HOLD status)

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●Characteristic data (The following characteristic data are Typ. Values.)

6

Ta=-40℃

5

Ta=25℃ Ta=85℃

4

IOH[mA]

SPEC

Vcc[V]

SPEC

Vcc[V]

SPEC

Ta=-40℃ Ta=25℃ Ta=85℃

SPEC

3

VIH[V]

2

1

0

0123456

Fig.6 "H" input voltege　VIH(CS,SCK,SI,HOLD,WP) Fig.7 　"L" input voltage　VIL(CS,SCK,SI,HOLD,WP)

2

1.8

1.6

VOH[V]

SPEC

1.4

1.2 0 0.4 0.8 1.2

Fig.9　"H" output voltage　VOH-IOH (Vcc=1.8V)

1.5

1

Ta=-40℃

ILI[μA]

Ta=25℃ Ta=85℃

0.5

0

0123456

Fig.12　Input leak current　ILI(CS,SCK,SI,HOLD,WP)

2.5

fSK=5MHz

DATA=55h

2

1.5

Ta=-40℃ Ta=25℃

1

ICC4,5[mA]

Ta=85℃

0.5

0

0123456

Fig.15　Consumption current at READ operation ICC4,5(READ,WRSR,fSK=5MHz)

250

200

150

100

tSCKWH[ns]

50

SPEC

0

0123456

Fig.18 tSCK high time　tSCKWH Fig.20 CS high time　tCS

6

Ta=-40℃

5

Ta=25℃ Ta=85℃

4

3

VIL[V]

2

1

0

0123456

1

Ta=-40℃

0.8

Ta=25℃ Ta=85℃

0.6

VOL[V]

0.4

0.2

0

0123456

Fig.10　"L" output voltage　VOL-IOL (Vcc=2.5V)

1.5

1

Ta=-40℃ Ta=25℃ Ta=85℃

ILO[μA]

0.5

0

0123456

Fig.13 Output leak current　ILO(SO)

2.5

2

Ta=-40℃

1.5

Ta=25℃ Ta=85℃

ISB[μA]

1

0.5

0

0123456

Fig.16　Consumption current at standby operation　ISB

250

200

150

100

tSCKWL[ns]

50

0

0123456

Vcc[V]

SPEC

IOL[mA]

SPEC

Vcc[V]

SPEC

Fig.19 tSCK low time　tSCKWL

Vcc[V]

Ta=-40℃ Ta=25℃ Ta=85℃

SPEC

Technical Note

1

Ta=-40℃

0.8

Ta=25℃ Ta=85℃

0.6

VOL[V]

0.4

SPEC

0.2

0

0123456

Fig.8　"L" output voltage　VOL-IOL (Vcc=1.8V)

2.6

2.4

2.2

VOH[V]

SPEC

2

1.8 0 0.4 0.8 1.2

Fig.11　"H" output voltage　VOH-IOH (Vcc=2.5V)

4

fSK=5MHz

DATA=55h

3

2

ICC1,2,3[mA]

1

0

0123456

Fig.14　Current consumption at WRITE operation

ICC1,2,3 (WRITE,PAGE WRITE,W RSR,fSCK=5MHz)

100

10

fSCK[MHz]

1

0.1 0123456

250

200

150

tCS[ns]

100

50

0

0123456

IOL[mA]

Ta=-40℃ Ta=25℃ Ta=85℃

IOH[mA]

Ta=-40℃ Ta=25℃ Ta=85℃

SPEC

Vcc[V]

SPEC

Fig.17　SCK frequency　fSC

SPEC

Vcc[V]

Ta=-40℃ Ta=25℃ Ta=85℃

SPEC

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●Characteristic data (The following characteristic data are Typ. Values.)

250

Vcc[V]

SPEC

Vcc[V]

Ta=-40℃ Ta=25℃ Ta=85℃

SPEC

200

150

100

tCSS[ns]

50

0

-50

60

50

40

30

tDIH[ns]

20

10

0

SPEC

0123456

Fig.21　CS setup time　tCSS

SPEC

Ta=-40℃ Ta=25℃ Ta=85℃

0123456

Fig.24　SI hold time　tDIH

250

Vcc[V]

Ta=-40℃ Ta=25℃ Ta=85℃

SPEC

Ta=-40℃ Ta=25℃ Ta=85℃

SPEC

　ｔPD

200

150

100

tCSH[ns]

50

0

200

150

100

tPD1[ns]

50

0

Fig.25　Data output delay time

SPEC

0123456

Fig.22　CS hold time　tCSH

SPEC

0123456

300

SPEC

Vcc[V]

SPEC

Vcc[V]

SPEC

Ta=-40℃ Ta=25℃ Ta=85℃

250

200

150

tOZ[ns]

100

50

0

300

250

200

150

tHOZ[ns]

100

50

0

120

90

60

tFO[ns]

30

SPEC

0123456

Fig.27　Output disable time　tOZ Fig.28　HOLD setting hold time　tHFH Fig.29　HOLD release hold time　tHRH

SPEC

CS

0123456

Fig.30　Time From HOLD to output High-Z　 tHOZ

SPEC

140

120

100

80

60

tHFH[ns]

40

20

0

-20 0123456

160

120

80

tHPD[ns]

40

0

-40

10

8

6

4

tE/W[ms]

2

SPEC

CS

0123456

Fig.31　Time from HOLD to output change　tHPD

SPEC

Vcc[V]

SPEC

Vcc[V]

Ta=-40℃ Ta=25℃ Ta=85℃

0

0123456

Vcc[V]

Fig.33 Output fall time　 tFO

0

0123456

Fig.34 Write cycl e time　tE/W

Vcc[V]

1(CL=100pF)

Technical Note

60

SPEC

Vcc[V]

SPEC

Ta=-40℃ Ta=25℃ Ta=85℃

SPEC

Vcc[V]

Ta=-40℃ Ta=25℃ Ta=85℃

40

20

tDIS[ns]

0

-20

-40

200

150

100

tPD2[ns]

50

0

0123456

Fig.26　Data output delay time　tPD2(CL=30pF)

150

120

90

60

tHRH[ns]

30

0

-30

120

90

60

tRO[ns]

30

0

SPEC

0123456

Fig.23　SI setup time　tDIS

SPEC

0123456

SPEC

CS

0123456

Fig.32 Output rise time　tRO

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ROHM BU9832GUL-W Technical data

Specifications and Main Features

Frequently Asked Questions

User Manual