AT28HC64B Ver la hoja de datos (PDF) - Atmel Corporation

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AT28HC64B

64K 8K x 8 High Speed CMOS E2PROM with Page Write and Software Data Protection

Atmel Corporation 

AT28HC64B

Data Polling Characteristics (1)

Symbol

Parameter

Min

tDH

Data Hold Time

0

tOEH

OE Hold Time

0

tOE

OE to Output Delay (2)

tWR

Write Recovery Time

0

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

Data Polling Waveforms

Typ

Max

2. See AC Read Characteristics.

Units

ns

ns

ns

ns

Toggle Bit Characteristics (1)

Symbol

Parameter

Min

tDH

Data Hold Time

10

tOEH

OE Hold Time

10

tOE

OE to Output Delay (2)

tOEHP

OE High Pulse

150

tWR

Write Recovery Time

0

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

Toggle Bit Waveforms (1, 2, 3)

Typ

Max

2. See AC Read Characteristics.

Units

ns

ns

ns

ns

ns

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.

2-275

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