SyncMOS Technologies Inc.
September 2002
Application Reference
Valid for SM8951A/8952A
X'tal
C1
C2
R
X'tal
C1
C2
R
3MHz
30 pF
30 pF
open
16MHz
30 pF
30 pF
open
6MHz
30 pF
30 pF
open
25MHz
15 pF
15 pF
62KΩ
9MHz
30 pF
30 pF
open
33MHz
5 pF
5 pF
6.8KΩ
12MHz
30 pF
30 pF
open
40MHz
2 pF
2 pF
4.7KΩ
C1
X'tal
XI
SM8951A/8952A
SM8951A/8952A
R
X2
C2
NOTE: Oscillation circuit may differs with different crystal or ceramic
resonator in higher oscillation frequency which was due to each
crystal or ceramic resonator has its own characteristics.
User should check with the crystal or ceramic resonator manufacturer
for appropriate value of external components.
Data Memory Read Cycle Timing
T12
T1
T2
T3
T4
T5
T6
T7
T8
T9
T10
T11
T12
T1
T2
T3
OSC
1
2
ALE
#PSEN
#RD
5
7
3
PORT2
ADDRESS A15 - A8
3
4
Float
6
DATA in
8
Float
ADDRESS
or Float
PORT0
INST in Float
A7 - A0
Specifications subject to change without notice,contact your sales representatives for the most recent information.
9/17
Ver 1.0
PID 8951A/8952A 09/02
SYNCMOS [ SYNCMOS TECHNOLOGIES,INC ]
