SM8951A Datasheet, PDF (9/17 Pages) SyncMOS Technologies,Inc – 8 - Bit Micro-controller with 4/8KB flash embedded

SyncMOS Technologies Inc.
September 2002
Application Reference
Valid for SM8951A/8952A
X'tal 3MHz 6MHz
C1 30 pF 30 pF
C2 30 pF 30 pF
R
open open
9MHz
30 pF
30 pF
open
12MHz
30 pF
30 pF
open
X'tal 16MHz 25MHz 33MHz 40MHz
C1 30 pF
15 pF 5 pF
2 pF
C2 30 pF 15 pF 5 pF
2 pF
R
open
62KΩ 6.8KΩ 4.7KΩ
SM8951A/8952A
X'tal
R
C1
C2
XI
SM8951A/8952A
X2
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
OSC
ALE
1
2
T2 T3
#PSEN
#RD
PORT2
PORT0
3
INST in Float
3
A7 - A0
4
Float
5
ADDRESS A15 - A8
6
DATA in
Specifications subject to change without notice,contact your sales representatives for the most recent information.
9/17
7
8
Float
ADDRESS
or Float
Ver 1.0 PID 8951A/8952A 09/02