AT25DF641 datasheet(49/59 Pages) ATMEL

49 / 59 page

3680E–DFLASH–12/08

AT25DF641 [Preliminary]

14.4

AC Characteristics - Maximum Clock Frequencies

Symbol

Parameter

Min

Max

Units

RapidS and SPI Operation

fMAX

Maximum Clock Frequency for All Operations – RapidS Operation Only

(excluding 0Bh, 03h, 3Bh, and 9F opcodes)

100

MHz

fCLK

Maximum Clock Frequency for All Operations

(excluding 03h and 3Bh opcodes)

MHz

fRDLF

Maximum Clock Frequency for 03h Opcode (Read Array – Low Frequency)

MHz

fRDDO

Maximum Clock Frequency for 3Bh Opcode (Dual-Output Read)

MHz

14.5

AC Characteristics – All Other Parameters

Symbol

Parameter

Min

Max

Units

tCLKH

Clock High Time

4.3

tCLKL

Clock Low Time

4.3

CLKR

(1)

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

0.1

V/ns

tCLKF

(1)

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

0.1

V/ns

tCSH

Chip Select High Time

CSLS

Chip Select Low Setup Time (relative to Clock)

tCSLH

Chip Select Low Hold Time (relative to Clock)

CSHS

Chip Select High Setup Time (relative to Clock)

CSHH

Chip Select High Hold Time (relative to Clock)

tDS

Data In Setup Time

2ns

Data In Hold Time

1ns

DIS

(1)

Output Disable Time

5ns

(2)

Output Valid Time

5ns

Output Hold Time

2ns

HLS

HOLD Low Setup Time (relative to Clock)

tHLH

HOLD Low Hold Time (relative to Clock)

HHS

HOLD High Setup Time (relative to Clock)

HHH

HOLD High Hold Time (relative to Clock)

tHLQZ

(1)

HOLD Low to Output High-Z

5ns

HHQX

(1)

HOLD High to Output Low-Z

5ns

WPS

(1)(3)

Write Protect Setup Time

tWPH

(1)(3)

Write Protect Hold Time

100

SECP

(1)

Sector Protect Time (from Chip Select High)

tSECUP

(1)

Sector Unprotect Time (from Chip Select High)

tLOCK

(1)

Sector Lockdown and Freeze Sector Lockdown State Time (from Chip Select High)

200

µs

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