AT28C64B-15 Ver la hoja de datos (PDF) - Atmel Corporation

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AT28C64B-15

64K (8K x 8) CMOS E2PROM with Page Write and Software Data Protection

Atmel Corporation 

AT28C64B

22. Data Polling Characteristics(1)

Symbol Parameter

Min

Typ

Max

tDH

tOEH

tOE

tWR

Notes:

Data Hold Time

0

OE Hold Time

0

OE to Output Delay(1)

Write Recovery Time

0

1. These parameters are characterized and not 100% tested. See “AC Read Characteristics” on page 6.

23. Data Polling Waveforms

Units

ns

ns

ns

ns

tOEH

tDH

tOE

24. Toggle Bit Characteristics(1)

Symbol Parameter

tDH

tOEH

tOE

tOEHP

tWR

Notes:

Data Hold Time

OE Hold Time

OE to Output Delay(2)

OE High Pulse

Write Recovery Time

1. These parameters are characterized and not 100% tested.

2. See “AC Read Characteristics” on page 6.

25. Toggle Bit Waveforms(1)(2)(3)

tWR

Min

Typ

Max

Units

10

ns

10

ns

ns

150

ns

0

ns

tOEH

tOEHP

tDH

tOE

tWR

Notes:

1. Toggling either OE or CE or both OE and CE will operate toggle bit.

2. Beginning and ending state of I/O6 will vary.

3. Any address location may be used but the address should not vary.

11

0270L–PEEPR–2/09

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