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AT25DF081A Datasheet, PDF (44/54 Pages) ATMEL Corporation – 8-Mbit 2.7V Minimum Serial Peripheral Interface Serial Flash Memory
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14.4 AC Characteristics – Maximum Clock Frequencies
Symbol Parameter
RapidS and SPI Operation
fMAX
Maximum Clock Frequency for All Operations – RapidS Operation Only
(excluding 0Bh, 03h, 3Bh, and 9F opcodes)
fCLK
Maximum Clock Frequency for All Operations
(excluding 03h and 3Bh opcodes)
fRDLF
fRDDO
Maximum Clock Frequency for 03h Opcode (Read Array – Low Frequency)
Maximum Clock Frequency for 3Bh Opcode (Dual-Output Read)
Min
Max Units
100
MHz
85
MHz
50
MHz
85
MHz
14.5 AC Characteristics – All Other Parameters
Symbol Parameter
Min
Max
tCLKH
Clock High Time
4.3
tCLKL
Clock Low Time
4.3
tCLKR(1)
Clock Rise Time, Peak-to-Peak (Slew Rate)
0.1
tCLKF(1)
Clock Fall Time, Peak-to-Peak (Slew Rate)
0.1
tCSH
Chip Select High Time
50
tCSLS
Chip Select Low Setup Time (relative to Clock)
5
tCSLH
Chip Select Low Hold Time (relative to Clock)
5
tCSHS
Chip Select High Setup Time (relative to Clock)
5
tCSHH
Chip Select High Hold Time (relative to Clock)
5
tDS
Data In Setup Time
2
tDH
tDIS(1)
tV(2)
Data In Hold Time
Output Disable Time
Output Valid Time
1
5
5
tOH
Output Hold Time
2
tHLS
HOLD Low Setup Time (relative to Clock)
5
tHLH
HOLD Low Hold Time (relative to Clock)
5
tHHS
HOLD High Setup Time (relative to Clock)
5
tHHH
HOLD High Hold Time (relative to Clock)
5
tHLQZ(1)
HOLD Low to Output High-Z
5
tHHQX(1)
HOLD High to Output Low-Z
5
tWPS(1)(3) Write Protect Setup Time
20
tWPH(1)(3) Write Protect Hold Time
100
tSECP(1)
Sector Protect Time (from Chip Select High)
20
tSECUP(1) Sector Unprotect Time (from Chip Select High)
20
tLOCK(1)
Sector Lockdown and Freeze Sector Lockdown State Time (from Chip Select High)
200
tEDPD(1)
Chip Select High to Deep Power-Down
1
tRDPD(1)
Chip Select High to Standby Mode
30
tRST
Reset Time
30
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
Units
ns
ns
V/ns
V/ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
μs
μs
μs
μs
44 AT25DF081A
8715C–SFLSH–1/2013
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