7

0015P–EPROM–10/11

Atmel AT27C512R

Table 5-6.

DC programming characteristics

Table 5-7.

AC programming characteristics

Notes:

1. V

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 100µsec

±5%.

Table 5-8.

The Atmel AT27C512R integrated product identification code

T

Symbol

Parameter

Test conditions

Limits

Units

Min

Max

I

LI

Input load current

V

±10

µA

V

IL

Input low level

-0.6

0.8

V

V

IH

Input high level

2.0

V

V

V

OL

Output low voltage

I

0.4

V

V

OH

Output high voltage

I

2.4

V

I

CC2

V

25

mA

I

PP2

OE/V

CE = V

IL

25

mA

V

ID

A9 product identification voltage

11.5

12.5

V

T

Symbol

Parameter

Test conditions

(1)

Limits

Units

Min

Max

t

AS

Address setup time

Input rise and fall times

(10% to 90%) 20ns

Input pulse levels

0.45V to 2.4V

Input timing reference level

0.8V to 2.0V

Output timing reference level

0.8V to 2.0V

2µs

t

OES

OE/V

2

µs

t

OEH

OE/V

2

µs

t

DS

Data setup time

2

µs

t

AH

Address hold time

0

µs

t

DH

Data hold time

2

µs

t

DFP

CE high to output float delay

(2)

0

130

ns

t

VCS

V

2

µs

t

PW

CE program pulse width

(3)

95

105

µs

t

DV

Data valid from CE

(2)

1µs

t

VR

OE/V

2

µs

t

PRT

OE/V

programming

50

ns

Codes

Pins

Hex data

A0

O7

O6

O5

O4

O3

O2

O1

O0

Manufacturer

0

0

0

0

1

1

1

1

0

1E

Device type

1

0

0

0

0

1

1

0

1

0D