AM27X128 datasheet(8/10 Pages) AMD

8 / 10 page

Am27X128

AC CHARACTERISTICS

Caution: Do not remove the device from (or insert it into) a socket or board that has VPP or VCC applied.

Notes:

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

2. This parameter is sampled and not 100% tested.

3. Switching characteristics are over operating range, unless otherwise specified.

4. See Figure 3 and Table 1 for test specifications.

SWITCHING WAVEFORMS

Notes:

1. OE# may be delayed up to tACC – tOE after the falling edge of the addresses without impact on tACC.

2. tDF is specified from OE# or CE#, whichever occurs first.

PACKAGE CAPACITANCE

Notes:

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

2. TA = +25°C, f = 1 MHz.

Parameter Symbols

Description

Test Setup

Am27X128

Unit

JEDEC

Standard

-55

-70

-90

-120

-150

-200

-255

tAVQV

tACC

Address to Output Delay

CE#,

OE# = VIL

Max

120

150

200

250

tELQV

tCE

Chip Enable to Output Delay

OE# = VIL Max

120

150

200

250

tGLQV

tOE

Output Enable to Output

Delay

CE# = VIL Max

3540

4050

5050

tEHQZ

tGHQZ

tDF

(Note 2)

Chip Enable High or Output

Enable High to Output High Z,

Whichever Occurs First

Max

2525

2530

3030

tAXQX

tOH

Output Hold Time from

Addresses, CE# or OE#,

Whichever Occurs First

Min

000

Addresses

CE#

OE#

Output

12083F-9

Addresses Valid

High Z

tCE

Valid Output

2.4

0.45

2.0

0.8

2.0

0.8

tACC

(Note 1)

tOE

tDF (Note 2)

tOH

Parameter

Symbol

Parameter Description

Test Conditions

PD 028

PL 032

Unit

Typ

Max

Typ

Max

CIN

Input Capacitance

VIN = 0

COUT

Output Capacitance

VOUT = 0

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