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<strong>ITT</strong>9300<br />

MSI 4-Bit Shift Register<br />

SELECTOR SWITCH SHOWN IN N=IS POSITION<br />

INPUT -------4<br />

Po PI P2 P3<br />

9300 SR<br />

Qo QI Q2 Q3 Q3<br />

MASTER _________ ~<br />

RESET<br />

10-+---- OUTPUT<br />

fin + N<br />

Figure 9 -<br />

DIVIDE BY N COUNTER FOR<br />

N = 2 to 15<br />

This counter produces an output pulse for every<br />

tl<br />

LSD<br />

~ SELECTOR<br />

SWITCH<br />

2 3 4 5 6 7 8 9<br />

hi>~"<br />

INPUT<br />

~<br />

ift>o-<br />

COUNT SEQUENCE<br />

9 o 0 1 1<br />

8 o 0 0 1<br />

7 o 0 0 0<br />

6 1 000<br />

5 1 1 0 0<br />

4 o 1 1 0<br />

1 0 1 1<br />

I I 0 I<br />

I I I 0<br />

0 o 1 1 I<br />

t<br />

), I<br />

J PE Po Pl P2 P3<br />

9300 SR<br />

Q3 Q3<br />

I-< K MR Qo Ql Q2<br />

'I'<br />

I<br />

~ L:<br />

p-<br />

N input pulses, where the number N is<br />

determined by the setting <strong>of</strong> the slide selector<br />

switch as shown or by logic inputs to the<br />

parallel data lines from an external source.<br />

M5D<br />

-::f"] SELECTOR<br />

SWITCH<br />

1 2 3 4 5 6 7 8 9<br />

IP-~:';"<br />

to<br />

9007<br />

),<br />

J PE Po Pl P2 P3<br />

9300 SR<br />

Qo Ql Q2 Q3 Q3<br />

Figure 10 - TWO DECADE<br />

PROGRAMMABLE DIVIDER<br />

~<br />

This circuit divides by any number "N" from 1<br />

to 1 00. The selected N is one greater than is<br />

shown on the slide switches. As an example<br />

the switched are showing 56, therefore the<br />

circuit will divide by 57 with this setting.<br />

'\<br />

OUT PUT<br />

fin' TN<br />

3-316

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