28F002BC データシートの表示（PDF） - Intel

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28F002BC

2-MBIT (256K X 8) BOOT BLOCK FLASH MEMORY

Intel 

28F002BC 2-MBIT BOOT BLOCK FLASH MEMORY

E

1

VIH

ADDRESSES (A)

VIL

VIH

WE# (E)

2

AIN

t AVAV

3

AIN

t AVEH

4

t EHAX

VIL

VIH

t

WLEL

OE# (G)

tEHWH

VIL

VIH

CE# (W)

t EHEL

t EHQV1,2,3,4

VIL

t ELEH

t DVEH

VIH

DATA (D/Q)

VIL

High Z

t EHDX

DIN

DIN

6.5V VHH

t PHWL

tPHHEH

RP# (P) VIH

VIL

VIH

WP# VIL

VPPH 2

VPPH1

V (V)

PP

VPPLK

VIL

t VPEH

NOTES:

1. VCC Power-Up and Standby

2. Write Program Setup or Erase Setup Command

3. Write Valid Address and Data (Program or Erase Confirm Command

4. Automated Program or Erase Delay

5. Read Status Register Data

6. Write Read Array Command

5

6

Valid

SRD

DIN

tQVPH

t QVVL

0578_13

Figure 14. Alternate AC Waveforms for Write and Erase Operations (CE#—Controlled Writes)

Table 11. Erase and Program Timings (TA = +25°C)

Parameter1

VPP = 12V ± 10%2

VCC = 5V ± 10%

VPP = 12V ± 5%

VCC = 5V ± 10%

Typ

Max

Typ

Max

Boot/Parameter Block Erase Time

5.8

40

1.0

7

Main Block Erase Time

14

60

2.4

14

Main Block Write Time

6.0

20

1.2

4.2

NOTES:

1. All numbers are sampled, not 100% tested.

2. Erase times near max limits when the 10% VPP option is used.

Units

s

s

s

34

PRELIMINARY

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