Datasheet > N84C163WD45TG

N84C163WD45TG

更新时间： 2022-02-26 10:49:54

品牌	Logo	应用领域
安森美 - ONSEMI		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
11页	98K
描述
Supervisory Circuits with I2C Serial CMOS EEPROM Precision Reset Controller

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N84C163WD45TG 数据手册

8TH B

ACK

N84C163

Hardware Data Protection

down) V or until V reaches the reset threshold

The N84C163 is designed with the following hardware

data protection features to provide a high degree of data

integrity.

(power up) V . Any attempt to access the

internal EEPROM is not recognized and an ACK

will not be sent on the SDA line when RESET or

RESET is active.

1. The N84C163 features a WP pin. When the WP

pin is tied high the entire memory array becomes

write protected (read only).

Reset Threshold Voltage

The N84C163 is offered with five reset threshold voltage

ranges. They are 4.50 ÷ 4.75 V, 4.25 ÷ 4.50 V, 3.00 ÷ 3.15 V,

2.85 ÷ 3.00 V and 2.55 ÷ 2.70 V.

2. The V sense provides write protection when

falls below the reset threshold value (V ).

The V lock out inhibits writes to the serial

EEPROM whenever V falls below (power

HIGH

LOW

SCL

HD:DAT

SU:STA

HD:STA

SU:DAT

SU:STO

SDA IN

BUF

SDA OUT

Figure 2. Bus Timing

SCL

SDA

BYTE n

STOP

CONDITION

START

CONDITION

ADDRESS

Figure 3. Write Cycle Timing

SDA

SCL

START BIT

STOP BIT

Figure 4. Start/Stop Timing

www.onsemi.com

1...3 4 567 8 9...11

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