Datasheet > 24C640-SN

24C640-SN

更新时间： 2022-11-27 07:53:37

品牌	Logo	应用领域
美国微芯 - MICROCHIP		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
12页	181K
描述
64K SPI Bus Serial EEPROM

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24C640-SN 数据手册

25AA640/25LC640/25C640

TABLE 1-3:

AC CHARACTERISTICS

All parameters apply over the

speciﬁed operating ranges

unless otherwise noted.

Commercial (C): Tamb = 0°C to +70°C

VCC = 1.8V to 5.5V

Industrial (I):

Tamb = -40°C to +85°C

Automotive (E):

Tamb = -40°C to +125°C VCC = 4.5V to 5.5V (25C640 only)

Parameter

Symbol

Min

Max

Units

Test Conditions

Clock Frequency

FCLK

—

MHz

VCC = 4.5V to 5.5V

VCC = 2.5V to 4.5V

VCC = 1.8V to 2.5V

CS Setup Time

CS Hold Time

TCSS

TCSH

100

250

500

—

VCC = 4.5V to 5.5V

VCC = 2.5V to 4.5V

VCC = 1.8V to 2.5V

150

250

475

—

VCC = 4.5V to 5.5V

VCC = 2.5V to 4.5V

VCC = 1.8V to 2.5V

CS Disable Time

Data Setup Time

TCSD

TSU

500

—

VCC = 4.5V to 5.5V

VCC = 2.5V to 4.5V

VCC = 1.8V to 2.5V

Data Hold Time

THD

100

—

VCC = 4.5V to 5.5V

VCC = 2.5V to 4.5V

VCC = 1.8V to 2.5V

CLK Rise Time

CLK Fall Time

Clock High Time

—

µs

(Note 1)

THI

150

250

475

—

VCC = 4.5V to 5.5V

VCC = 2.5V to 4.5V

VCC = 1.8V to 2.5V

Clock Low Time

TLO

150

250

475

—

VCC = 4.5V to 5.5V

VCC = 2.5V to 4.5V

VCC = 1.8V to 2.5V

Clock Delay Time

Clock Enable Time

TCLD

TCLE

—

Output Valid from

Clock Low

—

150

250

475

VCC = 4.5V to 5.5V

VCC = 2.5V to 4.5V

VCC = 1.8V to 2.5V

Output Hold Time

THO

TDIS

—

(Note 1)

Output Disable Time

—

200

250

500

VCC = 4.5V to 5.5V (Note 1)

VCC = 2.5V to 4.5V (Note 1)

VCC = 1.8V to 2.5V (Note 1)

HOLD Setup Time

THS

THH

THZ

THV

100

200

—

VCC = 4.5V to 5.5V

VCC = 2.5V to 4.5V

VCC = 1.8V to 2.5V

HOLD Hold Time

100

200

—

VCC = 4.5V to 5.5V

VCC = 2.5V to 4.5V

VCC = 1.8V to 2.5V

HOLD Low to Output High-Z

HOLD High to Output Valid

100

150

200

—

VCC = 4.5V to 5.5V (Note 1)

VCC = 2.5V to 4.5V (Note 1)

VCC = 1.8V to 2.5V (Note 1)

100

150

200

—

VCC = 4.5V to 5.5V

VCC = 2.5V to 4.5V

VCC = 1.8V to 2.5V

Internal Write Cycle Time

Endurance

TWC

—

E/W Cycles (Note 2)

Note 1: This parameter is periodically sampled and not 100% tested.

2: This parameter is not tested but guaranteed by characterization. For endurance estimates in a speciﬁc application, please

consult the Total Endurance Model which can be obtained on Microchip’s BBS or website.

1997 Microchip Technology Inc.

Preliminary

DS21223A-page 3

1 234 5 6 7...12

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