at52br3244 ATMEL Corporation, at52br3244 Datasheet - Page 37

• Manufacturer Part Number: at52br3244
• Description: 32-megabit 2m X 16 Flash +4-megabit 256k X 16 / 8-megabit 512k X 16 Sram Stack Memory
• Manufacturer: ATMEL Corporation

AC Characteristics
T
AC Test Conditions
TA = -40°C to 85°C, Unless Otherwise Specified
2471E–STKD–10/02
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
#
4
5
6
7
8
9
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
WHZ
t
t
CHZ
OHZ
t
t
CLZ
OLZ
BLZ
BHZ
WC
CW
WR
OW
OE
OH
AW
BW
WP
DW
DH
BA
AS
CL = 5 pF + 1 TTL Load
CL = 30 pF + 1 TTL Load
Parameter
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
Value
0.4V to 2.2V
5 ns
1.5V
CL = 5 pF + 1 TTL Load
CL = 30 pF + 1 TTL Load
AT52BR3244(T)/3248(T)
Min
10
10
10
70
60
60
60
50
30
5
0
0
0
0
0
0
0
5
70 ns
Max
35
70
30
30
30
20
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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