 
74AHCT17A
Hex buffer Schmitt trigger
The 74AHCT17A is a hex buffer with Schmitt-trigger inputs, capable of transforming slowly changing input signals into sharply defined, jitter-free output signals.
Designed to operate over a VCC range from 4.5 V to 5.5 V, the inputs are TTL compatible. This range allows the device to be used to translate from 3.3 V to 5 V.
This device is fully specified for partial Power-down applications using IOFF. The IOFF circuitry disables the output, preventing the damaging backflow current through the device when it is powered down.
Features and benefits
- Direct interface with TTL levels 
- Supply voltage range from 4.5 V to 5.5 V 
- Typical tpd of 3.2 ns at 5 V 
- Typical VOL(p) < 0.8 V at VCC = 5 V, Tamb = 25 °C 
- Typical VOH(v) > 2.3 V at VCC = 5 V, Tamb = 25 °C 
- Supports mixed-mode voltage operation on all ports 
- IOFF circuitry provides partial Power-down mode operation 
- Latch-up performance exceeds 250 mA per JESD 78 Class II 
- ESD protection: - HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 3000 V 
- CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 2000 V 
 
- Specified from -40 °C to +85 °C and from -40 °C to +125 °C 
参数类型
| 型号 | VCC (V) | Logic switching levels | Output drive capability (mA) | fmax (MHz) | Nr of bits | Power dissipation considerations | Tamb (°C) | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Rth(j-c) (K/W) | Package name | 
|---|---|---|---|---|---|---|---|---|---|---|---|
| 74AHCT17APW | 4.5 - 5.5 | TTL | ± 8 | 60 | 6 | low | -40~125 | 143 | 7.9 | 69 | TSSOP14 | 
封装
| 型号 | 可订购的器件编号,(订购码(12NC)) | 状态 | 标示 | 封装 | 外形图 | 回流焊/波峰焊 | 包装 | 
|---|---|---|---|---|---|---|---|
| 74AHCT17APW | 74AHCT17APWJ (935338682118) | Active | AHCT17A |   TSSOP14 (SOT402-1) | SOT402-1 | SSOP-TSSOP-VSO-WAVE | SOT402-1_118 | 
文档 (8)
| 文件名称 | 标题 | 类型 | 日期 | 
|---|---|---|---|
| 74AHCT17A | Hex buffer Schmitt trigger | Data sheet | 2024-01-23 | 
| AN90063 | Questions about package outline drawings | Application note | 2025-10-22 | 
| SOT402-1 | 3D model for products with SOT402-1 package | Design support | 2023-02-02 | 
| ahct17a | ahct17a IBIS model | IBIS model | 2017-06-02 | 
| Nexperia_package_poster | Nexperia package poster | Leaflet | 2020-05-15 | 
| TSSOP14_SOT402-1_mk | plastic, thin shrink small outline package; 14 leads; 0.65 mm pitch; 5 mm x 4.4 mm x 1.1 mm body | Marcom graphics | 2017-01-28 | 
| SOT402-1 | plastic, thin shrink small outline package; 14 leads; 0.65 mm pitch; 5 mm x 4.4 mm x 1.2 mm body | Package information | 2023-11-07 | 
| SSOP-TSSOP-VSO-WAVE | Footprint for wave soldering | Wave soldering | 2009-10-08 | 
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