NXP Semiconductors 74HCT4538
74HCT4538 is a dual retriggerable-resettable monostable multivibrator. Each multivibrator has two trigger/retrigger inputs (nA and nB), a direct reset input (nCD), two complementary outputs (nQ and nQ), and two pins (nREXT/CEXT and nCEXT) for connecting the external timing components CEXT and REXT. The device may be triggered by either the positive or the negative edges of the input pulse.| Part No. | 74HCT4538 |
|---|---|
| Datasheet | 74HCT4538 Download |
| Manufacturer |  NXP Semiconductors |
| Description | Dual retriggerable precision monostable multivibrator |
| Buy | Stock & Price |
FEATURES AND BENEFITS
● Tolerant of slow trigger rise and fall times● Separate reset inputs
● Triggering from falling or rising edge
● Complies with JEDEC standard no. 7A
● Input levels:
● For 74HC4538: CMOS level
● For 74HCT4538: TTL level
● ESD protection:
● HBM JESD22-A114F exceeds 2000 V
● MM JESD22-A115-A exceeds 200 V
● Multiple package options
● Specified from 40 C to +85 C and from 40 C to +125 C NXP Semiconductors 74HC4538; 74HCT4538 Dual retriggerable precision monostable multivibrator 3. Ordering information Table 1. Ordering information Type number Package Temperature range Name
DESCRIPTION
Version 74HC4538D 40 C to +125 C SO16 plastic small outline package; 16 leads; body width 3.9 mm SOT109-1 74HCT4538D 74HC4538DB 40 C to +125 C 74HCT4538DB SSOP16 plastic shrink small outline package; 16 leads; body width 5.3 mm SOT338-1 74HC4538PW 40 C to +125 C 74HCT4538PW TSSOP16 plastic thin shrink small outline package; 16 leads; body width 4.4 mm SOT403-1 4. Functional diagram Fig 1.
