AT27C020-12JC View Datasheet(PDF) - Atmel Corporation

Part Name

Description

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AT27C020-12JC

2-Megabit (256K x 8) OTP EPROM

Atmel Corporation 

AC Waveforms for Read Operation(1)

AT27C020

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.

Input Test Waveforms and Measurement Levels

For -55 devices only:

3.0V

AC

DRIVING

1.5V

LEVELS

0.0V

tR, tF < 5 ns (10% to 90%)

AC

MEASUREMENT

LEVEL

Output Test Load (1)

For -70,-90,-12,-15 devices only:

Note:

1. CL = 100 pF including jig

capacitance except -55

devices where CL = 30 pF.

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

Pin Capacitance

f = 1 MHz, T = 25°C(1)

Typ

Max

Units

CIN

4

8

pF

COUT

8

12

pF

Note: 1. Typical values for nominal supply voltage. This parameter is only sampled and is not 100% tested.

Conditions

VIN = 0V

VOUT = 0V

5

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