SAH-C515 SIEMENS [Siemens Semiconductor Group], SAH-C515 Datasheet - Page 145
![no-image](/images/no-image-200.jpg)
SAH-C515
Manufacturer Part Number
SAH-C515
Description
8-Bit CMOS Microcontroller
Manufacturer
SIEMENS [Siemens Semiconductor Group]
Datasheet
1.SAH-C515.pdf
(160 pages)
- Current page: 145 of 160
- Download datasheet (912Kb)
AC Characteristics (16 MHz) (cont’d)
External Data Memory Characteristics
Parameter
RD pulse width
WR pulse width
Address hold after ALE
RD to valid data in
Data hold after RD
Data float after RD
ALE to valid data in
Address to valid data in
ALE to WR or RD
Address valid to WR or RD
WR or RD high to ALE high
Data valid to WR transition
Data setup before WR
Data hold after WR
Address float after RD
External Clock Drive Characteristics
Parameter
Oscillator period
High time
Low time
Rise time
Fall time
Semiconductor Group
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
Symbol
t
t
t
t
t
RLRH
WLWH
LLAX2
RLDV
RHDX
RHDZ
LLDV
AVDV
LLWL
AVWL
WHLH
QVWX
QVWH
WHQX
RLAZ
CLCL
CHCX
CLCX
CLCH
CHCL
min.
275
275
90
–
0
–
–
–
138
120
23
13
288
13
–
min.
62.5
20
20
–
–
10-7
16 MHz
Clock
max.
–
–
–
148
–
55
350
398
238
–
103
–
–
–
0
Freq. = 1 MHz to 16 MHz
Variable Clock
min.
6
6
2t
–
0
–
–
–
3
4
t
t
7
t
–
Limit Values
Limit Values
CLCL
CLCL
CLCL
t
t
t
t
t
1/
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
t
CLCL
– 40
– 50
– 50
– 100
– 100
– 35
– 50
– 130
– 150
Variable Clock
Device Specifications
max.
1000
t
t
20
20
= 1 MHz to 16 MHz
CLCL
CLCL
–
–
t
t
CLCX
CHCX
max.
–
–
–
5
–
2
8
9
3
–
t
–
–
–
0
CLCL
t
t
t
t
t
CLCL
CLCL
CLCL
CLCL
CLCL
+ 40
– 165
– 70
– 150
– 165
+ 50
C515
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Unit
ns
ns
ns
ns
ns
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