4 ac characteristics – Rainbow Electronics AT25DF041A User Manual

Page 32

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32

3668E–DFLASH–11/2012

AT25DF041A

Notes:

1. Not 100% tested (value guaranteed by design and characterization).

2. 15 pF load at 70 MHz, 30 pF load at 66 MHz.

3. Only applicable as a constraint for the Write Status Register command when SPRL = 1

12.4

AC Characteristics

Symbol

Parameter

AT25DF041A

(2.3V version)

AT25DF041A

Min

Max

Min

Max

Units

f

SCK

Serial Clock (SCK) Frequency

50

70

MHz

f

RDLF

SCK Frequency for Read Array (Low Frequency - 03h opcode)

33

33

MHz

t

SCKH

SCK High Time

8.0

6.4

ns

t

SCKL

SCK Low Time

8.0

6.4

ns

t

SCKR

(1)

SCK Rise Time, Peak-to-Peak (Slew Rate)

0.1

0.1

V/ns

t

SCKF

(1)

SCK Fall Time, Peak-to-Peak (Slew Rate)

0.1

0.1

V/ns

t

CSH

Chip Select High Time

50

50

ns

t

CSLS

Chip Select Low Setup Time (relative to SCK)

5

5

ns

t

CSLH

Chip Select Low Hold Time (relative to SCK)

5

5

ns

t

CSHS

Chip Select High Setup Time (relative to SCK)

5

5

ns

t

CSHH

Chip Select High Hold Time (relative to SCK)

5

5

ns

t

DS

Data In Setup Time

2

2

ns

t

DH

Data In Hold Time

3

3

ns

t

DIS

(1)

Output Disable Time

7

6

ns

t

V

(2)

Output Valid Time

7

6

ns

t

OH

Output Hold Time

0

0

ns

t

HLS

HOLD Low Setup Time (relative to SCK)

5

5

ns

t

HLH

HOLD Low Hold Time (relative to SCK)

5

5

ns

t

HHS

HOLD High Setup Time (relative to SCK)

5

5

ns

t

HHH

HOLD High Hold Time (relative to SCK)

5

5

ns

t

HLQZ

(1)

HOLD Low to Output High-Z

7

6

ns

t

HHQX

(1)

HOLD High to Output Low-Z

7

6

ns

t

WPS

(1)(3)

Write Protect Setup Time

20

20

ns

t

WPH

(1)(3)

Write Protect Hold Time

100

100

ns

t

SECP

(1)

Sector Protect Time (from Chip Select High)

20

20

ns

t

SECUP

(1)

Sector Unprotect Time (from Chip Select High)

20

20

ns

t

EDPD

(1)

Chip Select High to Deep Power-down

3

3

µs

t

RDPD

(1)

Chip Select High to Standby Mode

3

3

µs

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