Datasheet > 27C64-12/15/17/20/25

27C64-12/15/17/20/25

更新时间： 2022-01-19 06:10:00

品牌	Logo	应用领域
其他 - ETC		可编程只读存储器电动程控只读存储器
页数	文件大小	规格书
13页	86K
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EPROM

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27C64

TABLE 1-4:

PROGRAMMING DC CHARACTERISTICS

Ambient Temperature: Tamb = 25°C ± 5°C

VCC = 6.5V ± 0.25V, VPP = VH = 13.0V ± 0.25V

Parameter

Status

Symbol

Min

Max.

Units

Conditions

Input Voltages

Logic”1”

Logic”0”

VIH

VIL

2.0

-0.1

VCC+1

0.8

Input Leakage

—

ILI

-10

µA

VIN = 0V to VCC

Output Voltages

Logic”1”

Logic”0”

VOH

VOL

2.4

—

0.45

IOH = -400 µA

IOL = 2.1 mA

VCC Current, program & verify

VPP Current, program

—

ICC2

IPP2

—

Note 1

A9 Product Identiﬁcation

11.5

12.5

Note 1: VCC must be applied simultaneously or before VPP and removed simultaneously or after VPP.

TABLE 1-5:

PROGRAMMING AC CHARACTERISTICS

for Program, Program Verify

and Program Inhibit Modes

AC Testing Waveform: VIH=2.4V and VIL=0.45V; VOH=2.0V; VOL=0.8V

Ambient Temperature: Tamb=25°C ±5°C

VCC= 6.5V ± 0.25V, VPP = VH = 13.0V ± 0.25V

Parameter

Symbol

Min

Max Units

Remarks

Address Set-Up Time

Data Set-Up Time

Data Hold Time

tAS

tDS

—

µs

tDH

—

Address Hold Time

Float Delay (2)

tAH

—

tDF

130

—

VCC Set-Up Time

Program Pulse Width (1)

CE Set-Up Time

tVCS

tPW

tCES

tOES

tVPS

tOE

105

—

100 µs typical

OE Set-Up Time

—

VPP Set-Up Time

Data Valid from OE

—

100

Note 1: For express algorithm, initial programming width tolerance is 100 µs ±5%.

2: This parameter is only sampled and not 100% tested. Output ﬂoat is deﬁned as the point where data is no

longer driven (see timing diagram).

DS11107L-page 4

1996 Microchip Technology Inc.

1 2 345 6 7...13

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