IA6805E2_07 Datasheet, PDF (6/33 Pages) InnovASIC, Inc – Microprocessor Unit

IA6805E2
Microprocessor Unit
As of Production Version 00
Crystal Parameters Representative Frequencies:
R_S max
C0
C1
Q
C_OSC1
C_OSC2
5.0 MHz 4.0 MHz 1.0 MHz
50Ω
75Ω
400Ω
8 pF
7 pF
5 pF
0.02 pF 0.012 pF 0.008 pF
50 k
40 k
30 k
15-30 pF 15-30 pF 15-40 pF
15-25 pF 15-25 pF 15-30 pF
29 August 2007
Oscillator Connections:
38
OSC2
38
OSC2
CRYSTAL CIRCUIT
L
C1
RS
39
C0
OSC1
39
OSC1
CRYSTAL OSCILLATOR CONNECTIONS
ia6805E2
10 MΩ
38
39
OSC2
C _OSC2
OSC1
C _OSC1
OSC1 PIN
t_OL
t_OH
t
t_OLOL
OSC1
39
OSC2
NC
38
IA6805E2
Figure 3. OSC1, OSC2 (System Clock)
OSC1 to Bus Transitions Timing Waveforms:
Copyright © 2007
OSC1
AS
DS
RW_n
A[12:8]
B[7:0]
MPU READ
MUX ADDR
MPU
READ
DATA*
B[7:0]
MPU WRITE
MUX ADDR
MPU WRITE DATA
*READ DATA "LATCHED" ON DS FALL
Figure 4. OSC1, OSC2 (System Clock)
IA211081401-03
©
Page 6 of 33
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