at52br3224a ATMEL Corporation, at52br3224a Datasheet - Page 39

• Manufacturer Part Number: at52br3224a
• Description: At52br3224a 32-megabit Flash + 4-megabit/ 8-megabit Sram Stack Memory
• Manufacturer: ATMEL Corporation

AC Characteristics
T
AC Test Conditions
TA = -40° C to 85° C, Unless Otherwise Specified
3338B–STKD–6/03
A
Parameter
Input Pulse Level
Input Rise and Fall Time
Input and Output Timing Reference Level
Output Load
= -40° C to 85° C, Unless Otherwise Specified
10
11
12
13
14
15
16
17
18
19
20
21
22
23
#
1
2
3
4
5
6
7
8
9
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
OHZ
t
WHZ
t
ACS
OLZ
CHZ
BHZ
CLZ
BLZ
WC
CW
BW
WP
WR
DW
OW
RC
OE
OH
AW
DH
AA
BA
AS
t
Others
CLZ
, t
OLZ
Parameter
Read Cycle Time
Address Access Time
Chip Select Access Time
Output Enable to Output Valid
SLB, SUB Access Time
Chip Select to Output in Low Z
Output Enable to Output in Low Z
SLB, SUB Enable to Output in Low Z
Chip Deselection to Output in High Z
Out Disable to Output in High Z
SLB, SUB Disable to Output in High Z
Output Hold from Address Change
Write Cycle Time
Chip Selection to End of Write
Address Valid to End of Write
SLB, SUB Valid to End of Write
Address Setup Time
Write Pulse Width
Write Recovery Time
Write to Output in High Z
Data to Write Time Overlap
Data Hold from Write Time
Output Active from End of Write
, t
BLZ
, t
CHZ
, t
OHZ
, t
BHZ
, t
WHZ
, t
OW
AT52BR3224A(T)/3228A(T)
Value
0.4V to 2.2V
5 ns
1.5V
CL = 5 pF + 1 TTL Load
CL = 30 pF + 1 TTL Load
Min
70
10
10
10
70
60
60
60
50
30
5
0
0
0
0
0
0
0
5
70 ns
Max
70
70
35
70
25
25
25
20
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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