4 ac characteristics – maximum clock frequencies, 5 ac characteristics – all other parameters, 4 ac characteristics – Rainbow Electronics AT25DQ321 User Manual

Page 55

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55

AT25DQ321 [DATASHEET]

8718D–DFLASH–12/2012

13.4 AC Characteristics

Maximum Clock Frequencies

13.5 AC Characteristics – All Other Parameters

Notes: 1. Not 100% tested. (Value guaranteed by design and characterization)

2. 15pF load at frequencies above 70MHz, 30pF otherwise.
3. Only applicable as a constraint for the Write Status Register Byte 1 command when SPRL = 1.

Symbol

Parameter

Min

Max

Units

RapidS and SPI Operation

f

MAX

Maximum Clock Frequency for All Operations – RapidS Operation Only
(Excluding 03h, 0Bh, 3Bh, 6Bh, and 9F Opcodes)

100

MHz

f

CLK

Maximum Clock Frequency for All Operations (Excluding 03h Opcode)

85

MHz

f

RDLF

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

50

MHz

f

RDDO

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

85

MHz

f

RDQO

Maximum Clock Frequency for 6Bh Opcode (Quad-Output Read)

66

MHz

Symbol

Parameter

Min

Max

Units

t

CLKH

Clock High Time

4.3

ns

t

CLKL

Clock Low Time

4.3

ns

t

CLKR

(1)

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

0.1

V/ns

t

CLKF

(1)

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

0.1

V/ns

t

CSH

Chip Select High Time

50

ns

t

CSLS

Chip Select Low Setup Time (Relative to Clock)

5

ns

t

CSLH

Chip Select Low Hold Time (Relative to Clock)

5

ns

t

CSHS

Chip Select High Setup Time (Relative to Clock)

5

ns

t

CSHH

Chip Select High Hold Time (Relative to Clock)

5

ns

t

DS

Data In Setup Time

2

ns

t

DH

Data In Hold Time

1

ns

t

DIS

(1)

Output Disable Time

5

ns

t

V

(2)

Output Valid Time

5

ns

t

OH

Output Hold Time

2

ns

t

HLS

HOLD Low Setup Time (Relative to Clock)

5

ns

t

HLH

HOLD Low Hold Time (Relative to Clock)

5

ns

t

HHS

HOLD High Setup Time (Relative to Clock)

5

ns

t

HHH

HOLD High Hold Time (Relative to Clock)

5

ns

t

HLQZ

(1)

HOLD Low to Output High-Z

5

ns

t

HHQX

(1)

HOLD High to Output Low-Z

5

ns

t

WPS

(1)(3)

Write Protect Setup Time

20

ns

t

WPH

(1)(3)

Write Protect Hold Time

100

ns

t

SECP

(1)

Sector Protect Time (From Chip Select High)

20

ns

t

SECUP

(1)

Sector Unprotect Time (From Chip Select High)

20

ns

t

LOCK

(1)

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

200

μs

t

EDPD

(1)

Chip Select High to Deep Power-Down

1

μs

t

RDPD

(1)

Chip Select High to Standby Mode

30

μs

t

RST

Reset Time

30

μs

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