SAB-C165 SIEMENS [Siemens Semiconductor Group], SAB-C165 Datasheet - Page 32

• Manufacturer Part Number: SAB-C165
• Description: C16x-Family of High-Performance CMOS 16-Bit Microcontrollers
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

AC Characteristics
External Clock Drive XTAL1
V
T
T
Parameter
Oscillator period
High time
Low time
Rise time
Fall time
Figure 11
External Clock Drive XTAL1
Memory Cycle Variables
The timing tables below use three variables which are derived from the BUSCONx registers and
represent the special characteristics of the programmed memory cycle. The following table
describes, how these variables are to be computed.
Description
ALE Extension
Memory Cycle Time Waitstates
Memory Tristate Time
Semiconductor Group
A
A
CC
= 0 to +70 ˚C
= -40 to +85 ˚C
= 5 V
10 %;
V
for SAB-C165-LM, SAB-C165-RM, SAB-C165-LF, SAB-C165-RF
for SAF-C165-LM
SS
= 0 V
Symbol
TCL SR 25
t
t
t
t
1
2
3
4
SR 6
SR 6
SR –
SR –
min.
Symbol Values
t
t
t
A
C
F
Max. CPU Clock
= 20 MHz
31
TCL * <ALECTL>
2TCL * (15 - <MCTC>)
2TCL * (1 - <MTTC>)
max.
25
–
–
5
5
min.
6
6
–
–
25
1/2TCL = 1 to 20 MHz
Variable CPU Clock
max.
–
–
5
5
500
C165
Unit
ns
ns
ns
ns
ns