SAB-C167CR-4R33M INFINEON [Infineon Technologies AG], SAB-C167CR-4R33M Datasheet - Page 86

• Manufacturer Part Number: SAB-C167CR-4R33M
• Description: 16-Bit Single-Chip Microcontroller
• Manufacturer: INFINEON [Infineon Technologies AG]

External XRAM Access
If XPER-Share mode is enabled the on-chip XRAM of the C167CR can be accessed
(during hold states) by an external master like an asynchronous SRAM.
Table 22
Parameter
Address setup time before RD/WR falling edge
Address hold time after RD/WR rising edge
Data turn on delay after RD falling edge
Data output valid delay after address latched
Data turn off delay after RD rising edge
Write data setup time before WR rising edge
Write data hold time after WR rising edge
WR pulse width
WR signal recovery time
1) The minimum access cycle time is 60 ns.
Figure 23
Data Sheet
Address
Command
(RD, WR)
Write Data
Read Data
XRAM Access Timing (Operating Conditions apply)
External Access to the XRAM
t
40
t
42
t
43
84
t
47
Symbol
t
t
t
t
t
t
t
t
t
40
41
42
43
44
45
46
47
48
t
45
SR
SR
CC
CC
CC
SR
SR
SR
SR
t
46
t
41
t
44
Electrical Parameters
t
48
Min.
4
0
1
–
1
10
2
20
t
40
1)
Limits
Max.
–
–
–
40
14
–
–
–
–
MCT04423
V3.3, 2005-02
C167CR
C167SR
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns