Datasheet > BU99022NUX-3

BU99022NUX-3

更新时间： 2024-01-12 20:54:03

品牌	Logo	应用领域
罗姆 - ROHM		可编程只读存储器电动程控只读存储器电可擦编程只读存储器
页数	文件大小	规格书
26页	585K
描述
I2C BUS 2kbit 2kbit 2ports serial EEPROM

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中文翻译

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数据手册

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BU99022NUX-3 数据手册

Datasheet

BU99022NUX-3

●AC operating characteristic

(Unless otherwise specified, Ta=－40～+85℃, VCC=1.7～5.5V)

Limit

Typ.

－

Parameter

Symbol

Unit

Min.

－

Max.

400

－

SCL frequency

fSCL

tHIGH

tLOW

kHz

μs

Data clock “HIGH“ time

Data clock “LOW“ time

SDA, SCL rise time ^*1*2

SDA, SCL fall time ^*1*2

Start condition hold time

Start condition setup time

Input data hold time

0.6

1.2

－

1.0

－

tHD:STA

tSU:STA

tHD:DAT

tSU:DAT

tPD

0.6

－

Input data setup time

Output data delay time

Output data hold time

Stop condition setup time

100

0.1

0.6

1.2

－

0.9

－

μs

tDH

－

tSU:STO

tBUF

－

Bus release time before

transfer start

－

Internal write cycle time

tWR

－

Noise removal valid period

(SDA, SCL terminal)

－

0.1

－

WP hold time

tHD:WP

tSU:WP

tHIGH:WP

1.0

0.1

1.0

－

WP setup time

－

WP valid time

－

*1 Not 100% TESTED.

*2 It is recommended that tR/tF is less than 300ns fundamentally.

When tR/tF is more than 300ns and less than 1us, it is possible that other device on the

same bus are entered unintended start/stop condition. For prevent it, note in designing

the AC timing.

Condition

Input data level:VIL=0.2×Vcc VIH=0.8×Vcc

Input data timing refarence level: 0.3×Vcc/0.7×Vcc

Output data timing refarence level: 0.3×Vcc/0.7×Vcc

Rise/Fall time : ≦20ns

●Sync data input / output timing

tHIGH

70%

30%

SCL

70% 70%

70%

30%

tLOW

tHD:DAT

tSU:DAT

DATA(n)

DATA(1)

70%

30%

ACK

D0 ACK

SDA

(input)

tWR

tPD

tDH

tBUF

30%

70%

30%

70%

30%

SDA

(output)

tSU:WP

tHD:WP

STOP CONDITION

○Input read at the rise edge of SCL

○Data output in sync with the fall of SCL

Fig.2 WP timing at write execution

Fig.1-(a) Sync data input / output timing

70%

DATA(n)

DATA(1)

70%

ACK

tSU:STA

tHD:STA

tSU:STO

tWR

tHIGH:WP

70%

30%

70%

STOP CONDITION

START CONDITION

Fig.1-(b) Start-stop bit timing

Fig.3 WP timing at write cancel

70%

ACK

write data

(n-th address)

tWR

STOP CONDITION START CONDITION

Fig.1-(c) Write cycle timing

www.rohm.com

TSZ02201-0R2R0G100010-1-2

2011.12.19 Rev.001

3/23

TSZ22111・14・001

1 234 5 6 7...26

中文翻译

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与BU99022NUX-3相关器件

型号	品牌	获取价格	描述	数据表
BU99022NUX-3TR	ROHM	获取价格	I2C BUS 2kbit 2kbit 2ports serial EEPROM
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BU9972GU	ROHM	获取价格	NTSC/PAL Digital Video Encoder
BU9972GU-E2	ROHM	获取价格	Color Signal Encoder, PBGA63, 0.50 MM PITCH, ROHS COMPLIANT, VBGA-63
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