LSI53C040-160QFP LSI, LSI53C040-160QFP Datasheet - Page 175

• Manufacturer Part Number: LSI53C040-160QFP
• Manufacturer: LSI

Specifications of LSI53C040-160QFP

• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Supplier Unconfirmed

9.5.3 External Data Write Cycle
Figure 9.12 External Data Write Waveforms
AD[7:0]
Table 9.17
A[15:8]
PSEN/
A[7:0]
Symbol
WR/
ALE
t
t
t
t
t
t
13
14
15
16
6
7
ADDR
ADDR
Parameter
ALE to WR/ = Minimum delay from ALE falling to WR/
falling
WR/ pulse width = Minimum time WR/ is low
Data setup to WR/ = Minimum time data is valid prior to
WR/ rising
Data hold after WR/ = Minimum time data is valid after WR/
rising
Address Valid to ALE Falling = Minimum setup time for
A[15:8] and AD[7:0] to ALE falling
ALE Falling to Lower Address Valid = Maximum delay from
ALE falling to AD[7:0] valid
External Data Write Timings
t
6
ADDR
Microcontroller Interface Timings
t
7
t
13
ADDR
t
15
ADDR
ADDR
DATA
t
14
Min
50
50
50
20
20
–
t
16
Max
10
–
–
–
–
–
Units
ns
ns
ns
ns
ns
ns
9-15