PEB20571 INFINEON [Infineon Technologies AG], PEB20571 Datasheet - Page 220

• Manufacturer Part Number: PEB20571
• Description: ICs for Communications
• Manufacturer: INFINEON [Infineon Technologies AG]

Timing for Multiplexed Bus
In this mode the ALE pin is used to lock the address send via the multiplexed A/D bus.
Table 9-5
Parameter
A-bus setup time before ALE falling
edge
A-bus hold time after ALE falling edge t
ALE pulse width
CS setup time before WR rising edge t
CS hold time after WR rising edge
D-bus setup time before WR rising
edge
D-bus hold time after WR rising edge t
ALE hold time after WR rising edge
WR pulse width
Figure 9-5
Preliminary Data Sheet
WR
CS
AD
ALE
Timing For Write Cycle In Intel/Infineon Multiplexed Mode
Write Cycle in Intel/Infineon Multiplexed Mode
t
SAL
t
WL
Address
t
HAL
Symbol
t
t
t
t
t
t
SAL
HAL
WL
SCW
HCW
SDW
HDW
HLW
WW
9-6
t
t
SDW
SCW
t
WW
min.
12
5
10
12
5
12
10
5
15
Limit Values
Data
max.
t
HLW
t
t
HCW
HDW
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
Timing Diagrams
Test
Condition
Output load
capacity of
50 pF
DELIC
2003-08