m48t212a STMicroelectronics, m48t212a Datasheet - Page 7

• Manufacturer Part Number: m48t212a
• Description: 3.3v Timekeeper Controller
• Manufacturer: STMicroelectronics

Table 9. Chip Enable Control and Bank Select Characteristics
(T
Figure 6. Chip Enable Control and Bank Select Timing
Table 10. Read Mode Characteristics
(T
Note: 1. C
A
A
t
= 0 to 70°C)
= 0 to 70°C)
t
t
Symbol
t
GLQX
EHQZ
GHQZ
ELQX
Symbol
t
t
t
t
t
GLQV
AXQX
AVQV
ELQV
t
AVAV
t
EXPD
APD
L
EX
A
E1 CON
E2 CON
(1)
(1)
(1)
(1)
= 5pF
Read Cycle Time
Address Valid to Output Valid
Chip Enable Low to Output Valid
Output Enable Low to Output Valid
Chip Enable Low to Output Transition
Output Enable Low to Output Transition
Chip Enable High to Output Hi-Z
Output Enable High to Output Hi-Z
Address Transition to Output Transition
EX to E1
A to E1
CON
CON
or E2
or E2
tEXPD
CON
CON
(Low or High)
Parameter
(Low or High)
Parameter
tEXPD
tAPD
Min
85
5
0
5
Min
M48T212A
M48T212A
-85
-85
Max
85
85
35
25
25
Max
15
15
AI02639
M48T212A
Unit
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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