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74HC_HCT4538 Datasheet(PDF) 4 Page - NXP Semiconductors |
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74HC_HCT4538 Datasheet(HTML) 4 Page - NXP Semiconductors |
4 / 24 page 74HC_HCT4538_3 © NXP B.V. 2009. All rights reserved. Product data sheet Rev. 03 — 8 June 2009 4 of 24 NXP Semiconductors 74HC4538; 74HCT4538 Dual retriggerable precision monostable multivibrator 5. Pinning information 5.1 Pinning 5.2 Pin description Fig 3. Pin configuration for DIP16 and SO16 Fig 4. Pin configuration for SSOP16 and TSSOP16 74HC4538 74HCT4538 1CEXT VCC 1REXT/CEXT 2CEXT 1CD 2REXT/CEXT 1B 2CD 1A 2B 1Q 2A 1Q 2Q GND 2Q 001aak190 1 2 3 4 5 6 7 8 10 9 12 11 14 13 16 15 74HC4538 74HCT4538 1CEXT VCC 1REXT/CEXT 2CEXT 1CD 2REXT/CEXT 1B 2CD 1A 2B 1Q 2A 1Q 2Q GND 2Q 001aak191 1 2 3 4 5 6 7 8 10 9 12 11 14 13 16 15 Table 2. Pin description Symbol Pin Description 1CEXT, 2CEXT 1, 15 external capacitor connection (always connected to ground) 1REXT/CEXT, 2REXT/CEXT 2, 14 external capacitor/resistor connection 1CD, 2CD 3, 13 direct reset input (active LOW) 1B, 2B 4, 12 input (LOW to HIGH triggered) 1A, 2A 5, 11 input (HIGH to LOW triggered) 1Q, 2Q 6, 10 output 1Q, 2Q 7, 9 complementary output (active LOW) GND 8 ground (0 V) VCC 16 supply voltage |
Similar Part No. - 74HC_HCT4538_15 |
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Similar Description - 74HC_HCT4538_15 |
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