at25df321 ATMEL Corporation, at25df321 Datasheet - Page 29

• Manufacturer Part Number: at25df321
• Description: At25df321 32-megabit 2.7-volt Only Serial Firmware Dataflash Memory
• Manufacturer: ATMEL Corporation

12.4
Notes:
3669A–DFLASH–07/07
Symbol
f
f
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
SCK
RDLF
SCKH
SCKL
SCKR
SCKF
CSH
CSLS
CSLH
CSHS
CSHH
DS
DH
DIS
V
OH
HLS
HLH
HH
HHH
HLQZ
HHQX
WPS
WPH
SECP
SECUP
EDPD
RDPD
(2)
(1)
(1)(3)
(1)(3)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
AC Characteristics
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.
Parameter
Serial Clock (SCK) Frequency
SCK Frequency for Read Array (Low Frequency – 03h opcode)
SCK High Time
SCK Low Time
SCK Rise Time, Peak-to-Peak (Slew Rate)
SCK Fall Time, Peak-to-Peak (Slew Rate)
Chip Select High Time
Chip Select Low Setup Time (relative to SCK)
Chip Select Low Hold Time (relative to SCK)
Chip Select High Setup Time (relative to SCK)
Chip Select High Hold Time (relative to SCK)
Data In Setup Time
Data In Hold Time
Output Disable Time
Output Valid Time
Output Hold Time
HOLD Low Setup Time (relative to SCK)
HOLD Low Hold Time (relative to SCK)
HOLD High Setup Time (relative to SCK)
HOLD High Hold Time (relative to SCK)
HOLD Low to Output High-Z
HOLD High to Output Low-Z
Write Protect Setup Time
Write Protect Hold Time
Sector Protect Time (from Chip Select High)
Sector Unprotect Time (from Chip Select High)
Chip Select High to Deep Power-Down
Chip Select High to Standby Mode
Min
100
6.8
6.8
0.1
0.1
50
20
5
5
5
5
2
3
0
5
5
5
5
AT25DF321
Max
20
70
33
20
6
6
6
6
3
3
Units
MHz
MHz
V/ns
V/ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs
µs
29