M69AW048B

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Table 13. Standby/Power-Down Mode AC Characteristics

Note: 1. Applicable also to Power-up.

2. Applicable when 4Mb, 8Mb and 16Mb PAR mode is programmed

4. The Input Transition Time (t

τ) at AC testing is 5ns as shown below. If actual tτ is longer than 5ns, it may violate AC specification of

some timing parameters.

Figure 22. Power Down Program AC Waveforms

Note: 1. E2 = High.

2. All address inputs must be High from Cycle 1 to Cycle 5.

3. PDCADD stands for Power-Down Configuration Address. It must be compliant with the format specified in Table 6 otherwise the

data programmed during the Power-Down Program sequence may be incorrect.

4. PDCDAT stands for Power-Down Configuration Data. It must be compliant with the format specified in Table 5 otherwise the data

programmed during the Power-Down Program sequence may be incorrect.

Symbol

Alt.

Parameter

M69AW048B

Unit

Min

Max

E2 Low Setup Time for Power Down Entry

10

ns

E2 Low Hold Time after Power Down Entry

70

ns

(1)

E1 High Hold Time following E2 High after Power-

Down Exit (Deep Power-Down Mode only)

300

µs

(2)

E1 High Hold Time following E2 High after Power-

Down Exit (not in Deep Power-Down Mode)

1µs

E1 High Setup Time following E2 High after Power-

Down Exit

0µs

E1 High to G Invalid Time for Standby Entry

10

ns

(3)

E1 High to W Invalid Time for Standby Entry

10

ns

t

t

τ

Input Transition Time

1

25

ns

AI07225c

A0-A20

E1

W

DQ0-DQ15

MSB 2

G

MSB 2

MSB 2

MSB 2

MSB 2

PDCADD3

LB, UB

tAXAV

tAVAX

RDa

RDa

RDa

00

RDb

Cycle 1

Cycle 2

Cycle 3

Cycle 4

Cycle 5

Cycle 6