AT49F1604 查看數據表（PDF） - Atmel Corporation

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AT49F1604

16-megabit (1M x 16/2M x 8) 5-volt Only Flash Memory

Atmel Corporation 

AC Read Characteristics

Symbol

tACC

tCE(1)

tOE(2)

tDF(3)(4)

tOH

tRO

Parameter

Address to Output Delay

CE to Output Delay

OE to Output Delay

CE or OE to Output Float

Output Hold from OE, CE or Address, whichever occurred first

RESET to Output Delay

AC Read Waveforms(1)(2)(3)(4)

ADDRESS

ADDRESS VALID

CE

AT49F16X4(T)-90

Min

Max

90

90

0

40

0

25

0

800

Units

ns

ns

ns

ns

ns

ns

tCE

OE

tOE

RESET

OUTPUT

tACC

tRO

HIGH Z

tDF

tOH

OUTPUT

VALID

Notes:

1. CE may be delayed up to tACC - tCE after the address transition without impact on tACC.

2. OE may be delayed up to tCE - tOE after the falling edge of CE without impact on tCE or by tACC - tOE after an address change

without impact on tACC.

3. tDF is specified from OE or CE, whichever occurs first (CL = 5 pF).

4. This parameter is characterized and is not 100% tested.

Input Test Waveforms and

Measurement Level

3.0

Output Test Load

tR, tF < 5 ns

Pin Capacitance

f = 1 MHz, T = 25°C(1)

Symbol

Typ

Max

CIN

COUT

Note:

4

6

8

12

1. This parameter is characterized and is not 100% tested.

Units

pF

pF

10

AT49F1604(T)/1614(T)

Conditions

VIN = 0V

VOUT = 0V

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