HT27C020 datasheet(5/11 Pages) HOLTEK

Part #	HT27C020

Description	OTP CMOS 256Kx 8-Bit EPROM

PDF	11 Pages

Scroll/Zoom	100%

Manufacturer	HOLTEK [Holtek Semiconductor Inc]

Direct Link	http://www.holtek.com

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5 / 11 page

Programming operation

Ta=+25

°C±5°C

Symbol

Parameter

Test Conditions

Min. Typ. Max. Unit

VCC

Conditions

tAS

Address Setup Time

—

µs

tOES

OE Setup Time

—

µs

tDS

Data Setup Time

—

µs

tAH

Address Hold Time

—

µs

tDH

Data Hold Time

—

µs

tDFP

Output Enable to Output Float

Delay

—

130

tVPS

VPP Setup Time

—

µs

tPW

PGM Program Pulse Width

—

105

µs

tVCS

VCC Setup Time

—

µs

tCES

CE Setup Time

—

tOE

Data Valid from OE

—

150

µs

tPRT

VPP Pulse Rise Time During

Programming

—

µs

Test waveforms and measurements

For -70, -90, -120 devices:

Output test load

tR, tF< 20ns (10% to 90%)

Note: CL=100pF including jig capacitance, except for the

-45 devices, where CL=30pF.

HT27C020

10th May ’99

HT27C020 Datasheet(PDF) 5 Page - Holtek Semiconductor Inc

HT27C020 Datasheet(HTML) 5 Page - Holtek Semiconductor Inc

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