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

<strong>ITT</strong>74174, <strong>ITT</strong>74175<br />

HEX/QUADRUPLE D-TYPE FLIP-FLOPS WITH CLEAR<br />

- -----<br />

SEMICONDUCTORS<br />

HEX/QUADRUPLE D-TYPE FLIP-FLOPS WITH<br />

CLEAR<br />

• <strong>ITT</strong>54/74174 Contain Six Flip-Flops with<br />

Single-Rail Outputs<br />

• <strong>ITT</strong>54/74175 Contain Four Flip-Flops with<br />

Dou.ble-Rail Outputs<br />

• Buffered Clock and Direct Clear Inputs<br />

• Individual Data Input to Each Flip-Flop<br />

• Applications include:<br />

Buffer/Storage Registers<br />

Shift Registers<br />

Pattern Generators<br />

These monolithic. positive-edge-triggered flip-flops<br />

utilize TTL circuitry to implement D-type flip-flop<br />

logic. All have a direct clear input, and the <strong>ITT</strong>-<br />

54174175 features complementary outputs from<br />

each flip-flop.<br />

Information at the D inputs meeting the setup time<br />

requirements is transferred to the Q outputs on the<br />

positive-going edge <strong>of</strong> the clock pulse. Clock triggering<br />

occurs at a particular voltage level and is not<br />

directly related to the transition time <strong>of</strong> the positivegoing<br />

pulse. When the clock input is at either the<br />

high or low level. the D input signal has no effect<br />

at the output.<br />

These circuits are fully compatible for use with<br />

most TTL or DTL circuits.<br />

FUNCTION TABLE<br />

(EACH FLIP-FLOP)<br />

2Q<br />

<strong>ITT</strong>74174<br />

DUAL-IN-LiNE PACKAGE<br />

AND FLAT PACKAGE<br />

PIN CONFIGURATION<br />

(TOP VIEW)<br />

<strong>ITT</strong>74175<br />

DUAL-IN-LiNE PACKAGE<br />

AND FLAT PACKAGE<br />

PIN CONFIGURATION<br />

(TOP VIEW)<br />

Vcc<br />

6Q<br />

60<br />

50<br />

5Q<br />

4Q<br />

Inputs<br />

Clear Clock D 0<br />

L X X L<br />

H<br />

•<br />

H H<br />

H<br />

•<br />

L L<br />

H L X 0 0<br />

Outputs<br />

H '" high level (steady state)<br />

L '" low level (steady state)<br />

X '" irrelevant<br />

• '" transition from low to high level<br />

0'<br />

H<br />

L<br />

H<br />

00<br />

0 0 '" the level <strong>of</strong> 0 before the indicated<br />

steady-state input conditions were established.<br />

, '" <strong>ITT</strong>54!74175<br />

POSITIVE LOGIC: SEE FUNCTION TABLE<br />

3-208

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