(Hong Kong)
Product Summary
The 74HC221N is a high-speed Si-gate CMOS device and are pin compatible with low power Schottky TTL (LSTTL). The 74HC221N is specified in compliance with JEDEC standard no. 7A. The 74HC221N is a dual non-retriggerable monostable multivibrator. It features an active LOW-going edge input (nA) and an active HIGH-going edge input (nB), either of which can be used as an enable input.
Parametrics
74HC221N absolute maximum ratings: (1) propagation delay (CL = 15pF; VCC = 5V ;) tPHL: 29ns for HC, 32ns for HCT; (2) propagation delay (CL = 15pF; VCC = 5V ;) tPLH: 35ns for HC, 36ns for HCT; (3) input capacitance: 3.5pF; (4) power dissipation capacitance per package: 90pF for HC, 96pF for HCT.
Features
74HC221N features: (1)Pulse width variance is typically less than ±5%; (2)Pin-out identical to “123”; (3)Overriding reset terminates output pulse; (4)nB inputs have hysteresis for improved noise immunity; (5)Output capability: standard (except for nREXT/CEXT); (6)ICC category: MSI.
Diagrams
| Image | Part No | Mfg | Description |  |
Pricing (USD) |
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 74HC221N |
NXP Semiconductors |
Monostable Multivibrator DUAL MONOSTABLE MULTIVIBRATOR |
Data Sheet |
Negotiable |
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74HC221N,652 |
NXP Semiconductors |
Monostable Multivibrator DUAL MONOSTABLE |
Data Sheet |
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