Circuitos Integrados | ||
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74597 |
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8-bit shift register with input flip-flops |
PDF datasheet |
D1 | 1 • | 16 | Vcc |
D2 | 2 | 15 | D0 |
D3 | 3 | 14 | DS |
D4 | 4 | 13 | PL |
D5 | 5 | 12 | STCP |
D6 | 6 | 11 | SHCP |
D7 | 7 | 10 | MR |
GND | 8 | 9 | Q |
Pin | Symbol | Description |
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1 | D1 | parallel data input |
2 | D2 | parallel data input |
3 | D3 | parallel data input |
4 | D4 | parallel data input |
5 | D5 | parallel data input |
6 | D6 | parallel data input |
7 | D7 | parallel data input |
8 | GND | ground |
9 | Q | serial data output |
10 | MR | asynchronous master reset (active low) |
11 | SHCP | shift clock input (low-to-high, edge-triggered) |
12 | STCP | storage clock input (low-to-high, edge-triggered) |
13 | PL | parallel load input (active low) |
14 | DS | serial data input |
15 | D0 | parallel data input |
16 | Vcc | supply voltage |
Specifications |
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(typical values under recommended operating conditions, unless specified) |
Parameter | Value | Unit |
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Propagation delay, SHCP to Q |
17 (74HC) 20 (74HCT) |
ns |
Propagation delay, STCP to Q |
25 (74HC) 29 (74HCT) |
ns |
Propagation delay, PL to Q |
21 (74HC) 26 (74HCT) |
ns |
Maximum clock frequency, SHCP |
96 (74HC) 83 (74HCT) |
MHz |
Note |
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Data is maintained by an independent source and accuracy is not guaranteed. Check with the manufacturer's datasheet for up-to-date information. |
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