BU4841_技术文档

Voltage Detector IC Series

Low Voltage Standard

CMOS Voltage Detector IC Series

BU48□□G, BU48□□F, BU48□□FVE, BU49□□G, BU49□□F, BU49□□FVE series

No.09006ECT01

 Description

ROHM standard CMOS reset IC series is a high-accuracy low current consumption reset IC series.

The lineup was established with two output types (Nch open drain and CMOS output) and detection voltage range from

0.9V to 4.8V in increments of 0.1V, so that the series may be selected according to the application at hand.

 Features

1) Detection voltage from 0.9V to 4.8V in 0.1V increments

2) Highly accurate detection voltage: ±1.0%

3) Ultra-low current consumption

4) Nch open drain output (BU48□□G/F/FVE)and CMOS output (BU49□□G/F/FVE)

5) Small surface package

SSOP5: BU48□□G，BU49□□G

SOP4: BU48□□F，BU49□□F

VSOF5: BU48□□FVE，BU49□□FVE

 Applications

All electronics devices that use microcontrollers and logic circuits.

 Selection Guide

No.

Specifications

Description

1

Output Circuit Format

Detection Voltage

Package

8:Open Drain Output, 9:CMOS Output

Example VDET: Represented as 0.1V steps in the

range from 0.9V to 4.8V

Part Number : BU4

2

1

2

3

(Displayed as 0.9 in the case of 0.9V)

G:SSOP5(SMP5C2)/ F:SOP4/ FVE:VSOF5(EMP5)

3

 Lineup

Detection

voltage

4.8V

4.7V

4.6V

4.5V

4.4V

4.3V

4.2V

4.1V

4.0V

3.9V

3.8V

3.7V

3.6V

3.5V

3.4V

3.3V

3.2V

3.1V

3.0V

2.9V

Part

Detection

Part

Detection

Part

Detection

voltage

2.8V

2.7V

2.6V

2.5V

2.4V

2.3V

2.2V

2.1V

2.0V

1.9V

1.8V

1.7V

1.6V

1.5V

1.4V

1.3V

1.2V

1.1V

1.0V

0.9V

Part

Making

Number

BU4848

BU4847

BU4846

BU4845

BU4844

BU4843

BU4842

BU4841

BU4840

BU4839

BU4838

BU4837

BU4836

BU4835

BU4834

BU4833

BU4832

BU4831

BU4830

BU4829

voltage

2.8V

2.7V

2.6V

2.5V

2.4V

2.3V

2.2V

2.1V

2.0V

1.9V

1.8V

1.7V

1.6V

1.5V

1.4V

1.3V

1.2V

1.1V

1.0V

0.9V

Number

voltage

4.8V

4.7V

4.6V

4.5V

4.4V

4.3V

4.2V

4.1V

4.0V

3.9V

3.8V

3.7V

3.6V

3.5V

3.4V

3.3V

3.2V

3.1V

3.0V

2.9V

Number

JR

JQ

JP

JN

JM

JL

JK

JJ

JH

JG

JF

JE

JD

JO

JB

JA

HZ

HY

HX

HW

HV

HU

HT

HS

HR

HQ

HP

HN

HM

HL

BU4828

BU4827

BU4826

BU4825

BU4824

BU4823

BU4822

BU4821

BU4820

BU4819

BU4818

BU4817

BU4816

BU4815

BU4814

BU4813

BU4812

BU4811

BU4810

BU4809

LH

LG

LF

BU4948

BU4947

BU4946

BU4945

BU4944

BU4943

BU4942

BU4941

BU4940

BU4939

BU4938

BU4937

BU4936

BU4935

BU4934

BU4933

BU4932

BU4931

BU4930

BU4929

KM

KL

KK

KJ

KH

KG

KF

KE

KD

KC

KB

KA

JZ

JY

JX

JW

JV

JU

JT

JS

BU4928

BU4927

BU4926

BU4925

BU4924

BU4923

BU4922

BU4921

BU4920

BU4919

BU4918

BU4917

BU4916

BU4915

BU4914

BU4913

BU4912

BU4911

BU4910

BU4909

LE

LD

LC

LB

LA

KZ

KY

KX

KW

KV

KU

KT

KS

KR

KQ

KP

KN

HK

HJ

HH

HG

HF

HE

HD

HC

HB

HA

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2009.06 - Rev.C

1/8

Technical Note

BU48□□G, BU48□□F, BU48□□FVE, BU49□□G, BU49□□F, BU49□□FVE series

 Absolute maximum ratings (Ta=25°C)

Parameter

Power Supply Voltage

Symbol

Limits

-0.3 ~ +7

Unit

V

VDD-GND

Nch Open Drain Output

CMOS Output

GND-0.3 ~ +7

GND-0.3 ~ VDD+0.3

540

Output Voltage

VOUT

V

*1*4

SSOP5

SOP4

Power

*2*4

*3*4

Pd

400

mW

Dissipation

VSOF5

210

Operating Temperature

Topr

Tstg

-40 ~ +125

-55 ~ +125

°C

Ambient Storage Temperature

*1 When used at temperatures higher than Ta=25°C, the power is reduced by 5.4mW per 1°C above 25°C.

*2 When used at temperatures higher than Ta=25°C, the power is reduced by 4.0mW per 1°C above 25°C.

*3 When used at temperatures higher than Ta=25°C, the power is reduced by 2.1mW per 1°C above 25°C.

*4 When a ROHM standard circuit board (70mm×70mm×1.6mm, glass epoxy board)is mounted.

 Electrical characteristics

Limit

Typ.

Parameter

Symbol

Condition

Unit

Min.

Max.

BU4848

BU4847

BU4846

BU4845

BU4844

BU4843

BU4842

BU4841

BU4840

BU4839

BU4838

BU4837

BU4836

BU4835

BU4834

BU4833

BU4832

BU4831

BU4830

BU4829

BU4828

BU4827

BU4826

BU4825

BU4824

BU4823

BU4822

BU4821

BU4820

BU4819

BU4818

BU4817

BU4816

BU4815

BU4814

BU4813

BU4812

BU4811

BU4810

BU4809

4.752

4.653

4.554

4.455

4.356

4.257

4.158

4.059

3.960

3.861

3.762

3.663

3.564

3.465

3.366

3.267

3.168

3.069

2.970

2.871

2.772

2.673

2.574

2.475

2.376

2.277

2.178

2.079

1.980

1.881

1.782

1.683

1.584

1.485

1.386

1.287

1.188

1.089

0.990

0.891

4.800

4.700

4.600

4.500

4.400

4.300

4.200

4.100

4.000

3.900

3.800

3.700

3.600

3.500

3.400

3.300

3.200

3.100

3.000

2.900

2.800

2.700

2.600

2.500

2.400

2.300

2.200

2.100

2.000

1.900

1.800

1.700

1.600

1.500

1.400

1.300

1.200

1.100

1.000

0.900

4.848

4.747

4.646

4.545

4.444

4.343

4.242

4.141

4.040

3.939

3.838

3.737

3.636

3.535

3.434

3.333

3.232

3.131

3.030

VDD=HL , Ta=25°C

RL=470kΩ

2.929

2.828

Detection Voltage

VDET

V

2.727

2.626

2.525

2.424

2.323

2.222

2.121

2.020

1.919

1.818

1.717

1.616

1.515

1.414

1.313

1.212

1.111

1.010

0.909

Detection Voltage

Temperature Coefficient

*1

VDET/∆T Ta=-40°C~125°C

VDD=LHL

-

±30

-

ppm/°C

V

VDET

×0.03

VDET

×0.03

VDET

×0.05

VDET

×0.05

VDET

×0.08

VDET

×0.07

VDET≤1.0V

VDET≥1.1V

Hysteresis Voltage

∆VDET

Ta=-40°C~125°C

RL=470kΩ

*1 Designed Guarantee.(Outgoing inspection is not done on all products.)

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

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2009.06 - Rev.C

2/8

Technical Note

BU48□□G, BU48□□F, BU48□□FVE, BU49□□G, BU49□□F, BU49□□FVE series

 Electrical characteristics (Unless Otherwise Specified Ta=-25 to 125°C)

Limit

Parameter

Symbol

Condition

Unit

Min.

Typ.

0.15

0.20

0.25

0.30

0.35

0.40

0.30

0.35

0.40

0.45

0.50

0.55

-

Max.

V_DET=0.9-1.3V

-

0.88

1.05

V_DET=1.4-2.1V

V_DET=2.2-2.7V

V_DET=2.8-3.3V

V_DET=3.4-4.2V

V_DET=4.3-4.8V

V_DET=0.9-1.3V

V_DET=1.4-2.1V

V_DET=2.2-2.7V

V_DET=2.8-3.3V

V_DET=3.4-4.2V

V_DET=4.3-4.8V

-

1.23

µA

Circuit Current when ON

IDD1

VDD=VDET-0.2V

VDD=VDET+2.0V

-

1.40

-

1.58

1.75

1.40

1.58

-

1.75

µA

Circuit Current when OFF

IDD2

-

1.93

-

2.10

2.28

-

VOL≤0.4V, Ta=25~125°C, RL=470kΩ

VOL≤0.4V, Ta=-40~25°C, RL=470kΩ

VDS=0.05V VDD=0.85V

0.70

0.90

20

1.0

4.0

1.7

2.0

-

Operating Voltage Range

‘Low’ Output Current (Nch)

VOPL

IOL

V

-

100

3.3

-

µA

VDS=0.5V VDD=1.5V VDET=1.7-4.8V

VDS=0.5V VDD=2.4V VDET=2.7-4.8V

VDS=0.5V VDD=4.8V VDET=0.9-3.9V

VDS=0.5V VDD=6.0V VDET=4.0-4.8V

VDD=VDS=7V

mA

7.2

‘High’ Output Current (Pch)

3.4

IOH

mA

µA

(only BU49□□G/F/FVE)

4.0

Output Leak Current when

OFF

-

0

0.1

1

Ta=-40°C~85°C

Ileak

VDD=VDS=7V

(only BU48□□G/F/FVE)

Ta=85°C~125°C

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

 Block Diagrams

BU48□□G/F/FVE

BU49□□G/F/FVE

VDD

VOUT

Vref

GND

Fig.1

Fig.2

TOP VIEW

SSOP5

SOP4

VSOF5

PIN No.

Symbol

Function

PIN No.

Symbol

VOUT

VDD

Function

Reset output

PIN No. Symbol

Function

1

2

3

4

5

VOUT Reset output

1

2

3

4

1

2

3

4

5

VOUT

SUB

N.C.

Reset output

Substrate*

VDD

GND

N.C.

Power supply voltage

Unconnected terminal

GND

N.C.

Unconnected terminal

Power supply voltage

GND

Unconnected terminal

GND

VDD

GND

*Connect the substrate to VDD

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2009.06 - Rev.C

3/8

Technical Note

BU48□□G, BU48□□F, BU48□□FVE, BU49□□G, BU49□□F, BU49□□FVE series

 Reference Data (Unless specified otherwise, Ta=25°C)

0.6

0.5

0.4

0.3

0.2

0.1

0.0

5

4

3

2

1

0

25

20

15

10

5

BU4916F

】

BU4816F

】

【

BU4816F

【

】

【

V_DD=6.0V

V_DD=4.8V

V_DD=1.2V

0

1

2

3

4

5

6

7

0.0

0.5

1.0

1.5

2.0

2.5

0

1

2

3

4

5

6

DRAIN-SOURCE VOLTAGE

V_DS[V]

：

V

_DDSUPPLY VOLTAGE V_DD[V]

：

DRAIN-SOURCE VOLTAGE V_DS[V]

：

Fig.3 Circuit Current

Fig.4 “LOW” Output Current

Fig.5 “High” Output Current

7

6

5

4

3

2

1

0

1.0

0.8

0.6

0.4

0.2

0.0

2.0

1.5

1.0

BU4816F

【

】

BU4816F

【

】

Low to high(V_DET+ΔV_DET

)

High to low(V^DET)

BU4816F

0

【

】

0.0

0.5

1.0

1.5

2.0

2.5

-40

40

80

120

0

1

2

3

4

5

6

7

V_DDSUPPLY VOLTAGE V_DD[V]

：

TEMPERATURE Ta[ ]

： ℃

V

_DDSUPPLY VOLTAGE V_DD[V]

：

Fig.7 Operating Limit Voltage

Fig.6 I/O Characteristics

Fig.8 Detecting Voltage

Release Voltage

0.5

1.0

0.8

0.6

0.4

0.2

0.0

BU4816F

【

】

BU4816F

【

】

0.4

0.3

0.2

0.1

0.0

0.8

0.6

0.4

0.2

0.0

-40

0

40

80

120

-40

0

40

80

120

-40

0

40

80

120

TEMPERATURE Ta[

]

℃

：

TEMPERATURE Ta[

]

℃

：

TEMPERATURE Ta[

]

℃

：

Fig.9 Circuit Current when ON

Fig.10 Circuit Current when OFF

Fig.11 Operating Limit Voltage

www.rohm.com

2009.06 - Rev.C

4/8

Technical Note

BU48□□G, BU48□□F, BU48□□FVE, BU49□□G, BU49□□F, BU49□□FVE series

 Reference Data

Examples of Output rising value(TPLH)and Output falling value(TPHL)

Part Number

BU4845G/F/FVE

BU4945G/F/FVE

TPLH[µs]

23.3

TPHL[µs]

275.9

3.5

354.3

VDD=4.3V5.1V

VDD=5.1V4.3V

* This data is for reference only.

This figure will vary with the application, so please confirm actual operation conditions before use.

 Explanation of Operation

For both the open drain type(Fig.12)and the CMOS output type(Fig.13), the detection and release voltages are

used as threshold voltages. When the voltage applied to the VDD pins reaches the applicable threshold voltage, the Vout

terminal voltage switches from either “High” to “Low” or from “Low” to “High”. Because the BU48□□G/F/FVE series uses an

open drain output type, it is possible to connect a pull-up resistor to VDD or another power supply [The output “High” voltage

(VOUT) in this case becomes VDD or the voltage of the other power supply].

VDD

V

DD

VDD

R1

R2

R1

R2

Q2

Q1

RL

Vref

RESET

OUT

V

VOUT RESET

Q1

R3

GND

Fig.12 (BU48□□ type internal block diagram)

Fig.13 (BU49□□ type internal block diagram)

 Timing Waveforms

Example:The following shows the relationship between the input voltage VDD, the CT Terminal Voltage VCT and the output

voltage VOUT when the input power supply voltage VDD is made to sweep up and sweep down (The circuits are those in

Fig.12 and 13).

1

When the power supply is turned on, the output is unsettled

from after over the operating limit voltage (VOPL) until TPHL.

DD

V

Therefore it is possible that the reset signal is not outputted

when the rise time of VDD is faster than TPHL.

V^DET+ΔV^DET

⑤

V^DET

2

When VDD is greater than VOPL but less than the reset release

V^OPL

0V

voltage (VDET + VDET), output (VOUT) voltages will switch to L.

3

If VDD exceeds the reset release voltage (VDET + VDET), then

OUT

V

VOUT switches from L to H (with a delay of TPLH).

V^OH

4

If VDD drops below the detection voltage (VDET) when the

T^PLH

T^PHL

PLH

T

power supply is powered down or when there is a power supply

fluctuation, VOUT switches to L (with a delay of TPHL).

T^PHL

V^OL

5

The potential deference between the detection voltage and

①

②

③

④

the release voltage is known as the hysteresis width (VDET). The

system is designed such that the output does not flip-flop with

power supply fluctuations within this hysteresis width, preventing

malfunctions due to noise.

Fig.14

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2009.06 - Rev.C

5/8

Technical Note

BU48□□G, BU48□□F, BU48□□FVE, BU49□□G, BU49□□F, BU49□□FVE series

 Circuit Applications

1) Examples of a common power supply detection reset circuit

VDD1

VDD2

Application examples of BU48□□G/F/FVE series

(Open Drain output type) and BU49□□G/F/FVE series

RL

(CMOS output type) are shown below.

Microcontroller

RST

BU48□□□

CASE1:The power supply of the microcontroller (VDD2) differs

from the power supply of the reset detection (VDD1).

Use the Open Drain Output Type (BU48□□G/FVE)

attached a load resistance (RL) between the output and

VDD2. (As shown Fig.15)

CIN

CL

(Capac itor for

noise filtering)

GND

CASE2:The power supply of the microcontroller (VDD1) is same

as the power supply of the reset detection (VDD1).

Use CMOS output type (BU43□□G/FVE) or Open Drain

Output Type (BU48□□G/FVE) attached a load

resistance (RL) between the output and VDD1.

(As shown Fig.16)

Fig.15 Open collector Output type

VDD1

Microcontroller

RST

BU49□□□

When a capacitance CL for noise filtering or setting the

output delay time is connected to the Vout pin (the reset

signal input terminal of the microcontroller), please take

into account the waveform of the rise and fall of the

output voltage (Vout).

CIN

CL

(Capacitor for

nois e filtering)

GND

Fig.16 CMOS Output type

2) Examples of the power supply with resistor dividers

In applications where the power supply input terminal (VDD) of an IC with resistor dividers, it is possible that a

through-current will momentarily flow into the circuit when the output logic switches, resulting in malfunctions (such as

output oscillatory state).

(Through-current is a current that momentarily flows from the power supply (VDD) to ground (GND) when the output level

switches from “High” to “Low” or vice versa.)

Consider the use of BD48□□ when the power supply input it with resistor dividers.

V1

R2

I1

VDD

CIN

BU48□□

BU49□□

R1

VOUT

CL

GND

Fig.17

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2009.06 - Rev.C

6/8

Technical Note

BU48□□G, BU48□□F, BU48□□FVE, BU49□□G, BU49□□F, BU49□□FVE series

 Operation Notes

1 . Absolute maximum range

Absolute Maximum Ratings are those values beyond which the life of a device may be destroyed. We cannot be defined the

failure mode, such as short mode or open mode. Therefore a physical security countermeasure, like fuse, is to be given

when a specific mode to be beyond absolute maximum ratings is considered.

2 . GND potential

GND terminal should be a lowest voltage potential every state.

Please make sure all pins that are over ground even if include transient feature.

3 . Electrical Characteristics

Be sure to check the electrical characteristics, that are one the tentative specification will be changed by temperature,

supply voltage, and external circuit.

4 . Bypass Capacitor for Noise Rejection

Please put into the to reject noise between VDD pin and GND with 1uF over and between VOUT pin and GND with 1000pF.

If extremely big capacitor is used, transient response might be late. Please confirm sufficiently for the point.

5 . Short Circuit between Terminal and Soldering

Don’t short-circuit between Output pin and VDD pin, Output pin and GND pin, or VDD pin and GND pin. When soldering the

IC on circuit board please is unusually cautious about the orientation and the position of the IC. When the orientation is

mistaken the IC may be destroyed.

6 . Electromagnetic Field

Mal-function may happen when the device is used in the strong electromagnetic field.

7 . The VDD line inpedance might cause oscillation because of the detection current.

8 . A VDD -GND capacitor (as close connection as possible) should be used in high VDD line impedance condition.

9 . Lower than the mininum input voltage makes the VOUT high impedance, and it must be VDD in pull up (VDD) condition.

10. Recommended value of RL Resistar is over 10kΩ (VDET=1.5V~4.8V),

over 100kΩ (VDET=0.9~1.4V).

11. This IC has extremely high impedance terminals. Small leak current due to the uncleanness of PCB surface might cause

unexpected operations. Application values in these conditions should be selected carefully. If 10MΩ leakage is assumed

between the CT terminal and the GND terminal, 1MΩ connection between the CT terminal and the VDD terminal would be

recommended. Also, if the leakage is assumed between the VOUT terminal and the GND terminal, the pull up resistor

should be less than 1/10 of the assumed leak resistance.

12. External parameters

For RL, the recommended range is 10kΩ~1MΩ. There are many factors (board layout, etc) that can affect characteristics.

Please verify and confirm using practical applications.

13. Power on reset operation

Please note that the power on reset output varies with the Vcc rise up time. Please verify the actual operation.

14. Precautions for board inspection

Connecting low-impedance capacitors to run inspections with the board may produce stress on the IC. Therefore, be

certain to use proper discharge procedure before each process of the test operation.

To prevent electrostatic accumulation and discharge in the assembly process, thoroughly ground yourself and any

equipment that could sustain ESD damage, and continue observing ESD-prevention procedures in all handing, transfer

and storage operations. Before attempting to connect components to the test setup, make certain that the power supply is

OFF. Likewise, be sure the power supply is OFF before removing any component connected to the test setup.

15. When the power supply, is turned on because of incertain cases, momentary Rash-current flow into the IC at the logic

unsettled, the couple capacitance, GND pattern of width and leading line must be considered.

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2009.06 - Rev.C

7/8

Technical Note

BU48□□G, BU48□□F, BU48□□FVE, BU49□□G, BU49□□F, BU49□□FVE series

 Part Number Selection

B

U

4

8

0

9

G

－

T

R

BU48: Standard CMOS reset IC

Open drain type

Detection voltage

09: 0.9V (0.1V step)

48: 4.8V

Package

Taping Specifications

Embossed Taping

G: SSOP5

F: SOP4

BU49: Standard CMOS reset IC

CMOS Output type

FVE: VSOF5

SSOP5

°

+

−4

2.9 0.2

6

°

4

Tape

Embossed carrier tape

3000pcs

5

4

Quantity

TR

Direction

of feed

The direction is the 1pin of product is at the upper right when you hold

reel on the left hand and you pull out the tape on the right hand

(

)

1

2

3

1pin

+0.05

0.13

−0.03

+0.05

−0.04

0.42

0.1

0.95

Direction of feed

Order quantity needs to be multiple of the minimum quantity.

Reel

(Unit : mm)

∗

SOP4

2.0 0.2

Tape

Embossed carrier tape

°

+6

–4

1.3

3

°

4

Quantity

3000pcs

4

TR

Direction

of feed

The direction is the 1pin of product is at the upper right when you hold

reel on the left hand and you pull out the tape on the right hand

(

)

1

2

0.05

+0.05

–0.03

0.13

1pin

S

+0.05

–0.04

0.42

0.1

S

+0.05

–0.04

Direction of feed

Order quantity needs to be multiple of the minimum quantity.

0.32

Reel

(Unit : mm)

∗

VSOF5

1.6 0.05

1.0 0.05

Tape

Embossed carrier tape

5

4

Quantity

3000pcs

TR

Direction

of feed

The direction is the 1pin of product is at the upper right when you hold

reel on the left hand and you pull out the tape on the right hand

(

)

1pin

1

2

3

0.13 0.05

Direction of feed

Order quantity needs to be multiple of the minimum quantity.

0.22 0.05

0.5

Reel

(Unit : mm)

∗

www.rohm.com

2009.06 - Rev.C

8/8

Notice

N o t e s

No copying or reproduction of this document, in part or in whole, is permitted without the

consent of ROHM Co.,Ltd.

The content speciﬁed herein is subject to change for improvement without notice.

The content speciﬁed herein is for the purpose of introducing ROHM's products (hereinafter

"Products"). If you wish to use any such Product, please be sure to refer to the speciﬁcations,

which can be obtained from ROHM upon request.

Examples of application circuits, circuit constants and any other information contained herein

illustrate the standard usage and operations of the Products. The peripheral conditions must

be taken into account when designing circuits for mass production.

Great care was taken in ensuring the accuracy of the information speciﬁed in this document.

However, should you incur any damage arising from any inaccuracy or misprint of such

information, ROHM shall bear no responsibility for such damage.

The technical information speciﬁed herein is intended only to show the typical functions of and

examples of application circuits for the Products. ROHM does not grant you, explicitly or

implicitly, any license to use or exercise intellectual property or other rights held by ROHM and

other parties. ROHM shall bear no responsibility whatsoever for any dispute arising from the

use of such technical information.

The Products speciﬁed in this document are intended to be used with general-use electronic

equipment or devices (such as audio visual equipment, ofﬁce-automation equipment, commu-

nication devices, electronic appliances and amusement devices).

The Products speciﬁed in this document are not designed to be radiation tolerant.

While ROHM always makes efforts to enhance the quality and reliability of its Products, a

Product may fail or malfunction for a variety of reasons.

Please be sure to implement in your equipment using the Products safety measures to guard

against the possibility of physical injury, ﬁre or any other damage caused in the event of the

failure of any Product, such as derating, redundancy, ﬁre control and fail-safe designs. ROHM

shall bear no responsibility whatsoever for your use of any Product outside of the prescribed

scope or not in accordance with the instruction manual.

The Products are not designed or manufactured to be used with any equipment, device or

system which requires an extremely high level of reliability the failure or malfunction of which

may result in a direct threat to human life or create a risk of human injury (such as a medical

instrument, transportation equipment, aerospace machinery, nuclear-reactor controller,

fuel-controller or other safety device). ROHM shall bear no responsibility in any way for use of

any of the Products for the above special purposes. If a Product is intended to be used for any

such special purpose, please contact a ROHM sales representative before purchasing.

If you intend to export or ship overseas any Product or technology speciﬁed herein that may

be controlled under the Foreign Exchange and the Foreign Trade Law, you will be required to

obtain a license or permit under the Law.

Thank you for your accessing to ROHM product informations.

More detail product informations and catalogs are available, please contact us.

ROHM Customer Support System

http://www.rohm.com/contact/

www.rohm.com

R0039

A


型号：	BU4841
厂家：	ROHM
描述：	Low Voltage Standard CMOS Voltage Detector IC Series 低电压标准CMOS电压检测器IC系列
文件：	总9页 (文件大小：260K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

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