m69aw048b STMicroelectronics, m69aw048b Datasheet - Page 14

• Manufacturer Part Number: m69aw048b
• Description: 32 Mbit 2m X16 3v Asynchronous Psram
• Manufacturer: STMicroelectronics

M69AW048B
Table 11. Read Mode AC Characteristics
Note: 1. Maximum value is applicable if E1 is kept Low without change of address input of A3 to A20. If needed by system operation, please
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t
t
AVEH2
AVAX2
t
t
t
t
AVQV2
t
t
t
AXAV2
AVQV
t
t
t
t
t
t
Symbol
AXAV
t
t
t
t
ELAX
ELEH
t
t
t
t
AVAX
GHQX
GHQZ
AXQX
BHQX
BHQZ
EHAX
EHQX
EHQZ
GLQV
GLQX
BLQV
BLQX
ELQV
ELQX
t
t
t
t
GHAX
AVGL
EHEL
AVEL
2. Address should not be changed within minimum Read Cycle Time.
3. The output load 50pF with 50
4. The output load 5pF without any other load.
5. Applicable to A3 to A20 when E1 is kept Low.
6. Applicable only to A0, A1 and A2 when E1 is kept Low for the page address access.
7. In case Page Read Cycle is continued with keeping E1 stays Low, E1 must be brought to High within 4µs. In other words, Page
8. Applicable when at least two of address inputs among applicable are switched from previous state.
9. Minimum Read Cycle TIme and minimum Page Read Cycle Time must be satisfied.
(1,6,7)
(1,2)
(1,6,7)
(5,8)
(1,2)
(1,2)
(3,5)
contact your local ST representative for relaxation of the 1000ns limitation.
Read Cycle must be closed within 4µs.
(6,8)
(3,6)
(3)
(3)
(4)
(9)
(3)
(4)
(3)
(4)
(3)
(4)
(3)
(4)
(3)
(4)
t
t
CHAH
OHAH
t
t
t
t
t
t
t
t
t
t
t
t
Alt.
t
t
t
t
t
PRC
PRC
ASC
ASO
t
t
t
t
CHZ
t
t
t
OHZ
t
PAA
AXP
BHZ
CLZ
OLZ
BLZ
RC
OH
OH
CP
OH
RC
RC
CE
OH
OE
AA
AX
BA
Address Valid Time
Page Read Cycle Time
Page Read Cycle Time
Address Valid to Chip Enable Low
Address Valid to Output Enable Low
Address Valid to Output Valid
Page Address Access Time
Address Invalid Time
Page Address Invalid Time
Data hold from address change
Upper/Lower Byte Enable High to Output Transition
Upper/Lower Byte Enable High to Output Hi-Z
Upper/Lower Byte Enable Low to Output Valid
Upper/Lower Byte Enable Low to Output Transition
Chip Enable High to Address Invalid
Chip Enable High to Chip Enable Low
Chip Enable High to Output Transition
Chip Enable High to Output Hi-Z
Read Cycle Time
Read Cycle Time
Chip Enable Low to Output Valid
Chip Enable Low to Output Transition
Output Enable High to Address Invalid
Output Data Hold Time
Output Enable High to Output Hi-Z
Output Enable Low to Output Valid
Output Enable Low to Output Transition
termination to V
CC
Parameter
*0.5 V.
Min
70
25
25
–5
10
–5
15
70
70
–5
3
3
0
3
3
3
0
M69AW048B
1000
1000
1000
1000
1000
Max
70
18
10
10
20
30
20
70
20
40
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns