AT27C512R View Datasheet(PDF) - Atmel Corporation

Part Name

Description

View to exact match

AT27C512R

512K (64K x 8) OTP EPROM

Atmel Corporation 

16. AC Programming Characteristics

TA = 25 ± 5°C, VCC = 6.5 ± 0.25V, OE/VPP = 13.0 ± 0.25V

Symbol Parameter

Test Conditions(1)

Limits

Min

Max

Units

tAS

tOES

tOEH

tDS

tAH

tDH

tDFP

tVCS

tPW

tDV

tVR

tPRT

Notes:

Address Setup Time

2

µs

OE/VPP Setup Time

2

µs

OE/VPP Hold Time

Input Rise and Fall Times

2

µs

Data Setup Time

(10% to 90%) 20 ns

2

µs

Address Hold Time

Input Pulse Levels

0

µs

Data Hold Time

0.45V to 2.4V

2

µs

CE High to Output Float Delay(2)

0

130

ns

Input Timing Reference Level

VCC Setup Time

0.8V to 2.0V

2

µs

CE Program Pulse Width(3)

95

105

µs

Data Valid from CE(2)

OE/VPP Recovery Time

Output Timing Reference Level

0.8V to 2.0V

2

1

µs

µs

OE/VPP Pulse Rise Time During

Programming

50

ns

1. VCC must be applied simultaneously or before OE/VPP and removed simultaneously or after OE/VPP.

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

driven – see timing diagram.

3. Program Pulse width tolerance is 100 µsec ± 5%.

17. Atmel’s AT27C512R Integrated Product Identification Code

Codes

Pins

A0

O7

O6

O5

O4

O3

O2

O1

O0

Hex

Data

Manufacturer

0

0

0

0

1

1

1

1

0

1E

Device Type

1

0

0

0

0

1

1

0

1

0D

8 AT27C512R

0015O–EPROM–12/07

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