at45db321c ATMEL Corporation, at45db321c Datasheet - Page 22

• Manufacturer Part Number: at45db321c
• Description: 32-megabit 2.7 Volt Dataflash At45db321c For New Designs Use At45db321d
• Manufacturer: ATMEL Corporation

Table 10-4.
Note:
22
Symbol
f
f
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
SCK
CAR
WH
WL
CS
CSS
CSH
CSB
SU
H
HO
DIS
V
XFR
EP
P
PE
BE
RST
REC
WPE
WPD
(2)(3)
(2)(3)
(2)(3)
(2)(3)
(1)
(1)
1. Maximum specified frequency for SPI compatibility is 33 MHz.
2. The device uses an adaptive algorithm during program and erase operations. Use the RDY/BUSY bit of the status register or
3. Value are based on device characterization, not 100% tested in production.
AT45DB321C
the RDY/BUSY pin to determine whether the program or erase operation has completed. Fixed timing should not be used.
AC Characteristics – Serial Interface
Parameter
SCK Frequency
SCK Frequency for Continuous Array Read
SCK High Time
SCK Low Time
Minimum CS High Time
CS Setup Time
CS Hold Time
CS High to RDY/BUSY Low
Data In Setup Time
Data In Hold Time
Output Hold Time
Output Disable Time
Output Valid
Page to Buffer Transfer/Compare Time
Page Erase and Programming Time
Page Programming Time
Page Erase Time
Block Erase Time
RESET Pulse Width
RESET Recovery Time
WP Low to Protection Enabled
WP High to Protection Disabled
Min
250
100
250
10
10
10
3
6
0
1
Typ
16
20
8
8
Max
150
350
100
40
40
10
12
50
15
35
1
1
3387M–DFLASH–2/08
Units
MHz
MHz
ms
ms
ms
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs
µs
µs
µs
µs