AS5SP1M18DQ

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Revision 1.0 04/04/04

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10

COTS PEM

AS5SP1M18DQ

Austin Semiconductor, Inc.

SSRAM

Power Down (SNOOZE MODE)

Power Down or Snooze is a Power conservation mode which

when building large/very dense arrays, using multiple devices in a

multi-banked or paged array, can greatly reduce the Operating

current requirements of your total memory array solution.

The device is placed in this mode via the use of the ZZ pin, an

asynchronous control pin which when asserted, places the array

into the lower power or Power Down mode. Awakening the array

or leaving the Power Down (SNOOZE) mode is done so by de-

asserting the ZZ pin .

While in the Power Down or Snooze mode, Data integrity is

guaranteed. Accesses pending when the device entered the mode

are not considered valid nor is the completion of the operation

guaranteed. The device must be de-selected prior to entering the

Power Down mode, all Chip Enables, ADSP\ and ADSC\ must

remain inactive for the duration of ZZ recovery time (tZZREC).

ZZ Mode Electrical Characteristics

ZZ Mode Timing Diagram

Ordering Information

Mechanical Diagram

CLK

ADSP\

ADSC\

CEx\

CE2

ZZ

IDD

IDDzz

tZZS

tZZREC

16.00 +/- 0.20mm

14.00 +/- 0.10mm

0.30 +/- 0.08

0.65mm TYP.

See Detail A

100 Pin TQFP

14mm x 20mm

JEDEC MS026-D/BHA

Detail A

1.40 +/- 0.05mm

1.60mm Max.

1.00mm TYP.

0.10 +0.10/-0.05mm

0.60 +/- 0.15mm

12 +/- 1

Standoff

0.15 MAX

Seating Plane

0.05 MIN

0.10

tCD

Clock

ASI Part Number

Configuration

(ns)

(Mhz)

Industrial Operating Range (-40

AS5SP1M18DQ-30IT

1Mx18, 3.3vCore/3.3,2.5vIO

3.0

200

AS5SP1M18DQ-35IT

1Mx18, 3.3vCore/3.3,2.5vIO

3.5

166

AS5SP1M18DQ-40IT

1Mx18, 3.3vCore/3.3,2.5vIO

4.0

133

Enhanced Operating Range (-40

AS5SP1M18DQ-30ET

1Mx18, 3.3vCore/3.3,2.5vIO

3.0

200

AS5SP1M18DQ-35ET

1Mx18, 3.3vCore/3.3,2.5vIO

3.5

166

AS5SP1M18DQ-40ET

1Mx18, 3.3vCore/3.3,2.5vIO

4.0

133

Extended Operating Range (-55

AS5SP1M18DQ-35XT

1Mx18, 3.3vCore/3.3,2.5vIO

3.5

166

AS5SP1M18DQ-40XT

1Mx18, 3.3vCore/3.3,2.5vIO

4.0

133

Parameter

Symbol

Test Conditon

Min.

Max.

Units

Power Down (SNOOZE) Mode

IDDzz

ZZ >/- VDD - 0.2V

60

mA

ZZ Active (Signal HIGH) to Power Down

tZZS

ZZ >/- VDD - 0.2V

2 tCYC

ns

ZZ Inactive (Signal Low) to Power Up

tZZR

ZZ </- 0.2V

2 tCYC

ns