AT27C2048-55JI_07 View Datasheet(PDF) - Atmel Corporation

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Description

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AT27C2048-55JI_07

2-Megabit (128K x 16) OTP EPROM

Atmel Corporation 

AT27C2048

9. AC Characteristics for Read Operation

Symbol

Parameter

Condition

tACC(3)

Address to Output Delay

CE = OE

= VIL

tCE(2)

CE to Output Delay

OE = VIL

tOE(2)(3)

OE to Output Delay

CE = VIL

tDF(4)(5)

OE or CE High to Output Float, Whichever Occurred First

tOH(4)

Output Hold from Address, CE or OE, Whichever

Occurred First

Note: 2, 3, 4, 5. See the AC Waveforms for Read Operation diagram.

AT27C2048

-55

-90

Min

Max

Min

Max

55

90

55

90

20

35

20

20

7

0

10. AC Waveforms for Read Operation(1)

Units

ns

ns

ns

ns

ns

Notes:

1. Timing measurement references are 0.8V and 2.0V. Input AC drive levels are 0.45V and 2.4V, unless otherwise specified.

2. OE may be delayed up to tCE - tOE after the falling edge of CE without impact on tCE.

3. OE may be delayed up to tACC - tOE after the address is valid without impact on tACC.

4. This parameter is only sampled and is not 100% tested.

5. Output float is defined as the point when data is no longer driven.

5

0632F–EPROM–12/07

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