74HCT32
Document overview
- PDF pages: 8
Technical content
Page 1
Description
The 74HCT32 provides provides four independent 2-input OR gates
with standard push-pull outputs. The device is designed for operation
with a power supply range of 4.5V to 5.5V.
The gates perform the Boolean function:
Y = A + B or Y = A • B
Features
- Wide Supply Voltage Range from 4.5V to 5.5V
- Pin Compatible with Low Power Schottky (LSTTL)
- Inputs Are TTL Voltage Level Compatible
- Sinks or Sources 4mA at VCC = 4.5V
- CMOS Low Power Consumption
- Schmitt Trigger Action at All Inputs
- ESD Protection Exceeds JESD 22 200-V Machine Model (A115-A) 2000-V Human Body Model (A114-A) Exceeds 1000-V Charged Device Model (C101C)
- Range of Package Options SO-14 and TSSOP-14
- Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
- Halogen and Antimony Free. “Green” Device (Note 3)
QUADRUPLE 2-INPUT OR GATES
Pin Assignments

Applications
- General Purpose Logic
- Wide array of products such as: PCs, networking, notebooks, netbooks Computer peripherals, hard drives, CD/DVD ROM TV, DVD, DVR, set top box
Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See http://www.diodes.com for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free. 3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds.
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Page 2
Pin Descriptions
| Column 1 | Column 2 | Column 3 |
|---|---|---|
| Pin Number | Pin Name | Function |
| 1 | 1A | Data Input |
| 2 | 1B | Data Input |
| 3 | 1Y | Data Output |
| 4 | 2A | Data Input |
| 5 | 2B | Data Input |
| 6 | 2Y | Data Output |
| 7 | GND | Ground |
| 8 | 3Y | Data Output |
| 9 | 3A | Data Input |
| 10 | 3B | Data Input |
| 11 | 4Y | Data Output |
| 12 | 4A | Data Input |
| 13 | 4B | Data Input |
| 14 | VCC | Supply Voltage |
Logic Diagram
Function Table
| Column 1 | Column 2 | Column 3 |
|---|---|---|
| Inputs | Output | |
| A | B | Y |
| L | L | L |
| L | H | H |
| H | L | H |
| H | H | H |
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Page 3
Absolute Maximum Ratings (Note 4) (@TA = +25°C, unless otherwise specified.)
| Symbol | Description | Rating | Unit |
|---|---|---|---|
| ESD HBM | Human Body Model ESD Protection | 2 | KV |
| ESD CDM | Charged Device Model ESD Protection | 1 | KV |
| ESD MM | Machine Model ESD Protection | 200 | V |
| VCC | Supply Voltage Range | -0.5 to +7.0 | V |
| VI | Input Voltage Range (Note 5) | -0.5 to +7.0 | V |
| IIK | Input Clamp Current VI < -0.5V or Vi > VCC +0.5V | ±20 | mA |
| IOK | Output Clamp Current VO < -0.5V or VO > VCC +0.5V | ±20 | mA |
| IO | Continuous Output Current -0.5V < VO VCC +0.5V | +/- 25 | mA |
| ICC | Continuous Current Through Vcc | 50 | mA |
| IGND | Continuous Current Through GND | -50 | mA |
| TJ | Operating Junction Temperature | -40 to +150 | °C |
| TSTG | Storage Temperature | -65 to +150 | °C |
| PTOT | Total Power Dissipation | 500 | mW |
Notes: 4. Stresses beyond the absolute maximum may result in immediate failure or reduced reliability. These are stress values and device operation should be within recommend values. 5. Input Voltage cannot exceed VCC to the extent the Maximum clamp current is exceeded.
Recommended Operating Conditions (Note 6) (@TA = +25°C, unless otherwise specified.)
| Symbol | Parameter | Conditions | Min | Max | Unit |
|---|---|---|---|---|---|
| VCC | Supply Voltage | 4.5 | 5.5 | V | |
| VI | Input Voltage | 0 | VCC | V | |
| VO | Output Voltage | 0 | VCC | V | |
| Δt/ΔV | Input Transition Rise or Fall Rate | VCC = 4.5V to 5.5V | 500 | ns/V | |
| TA | Operating Free-Air Temperature | -40 | +125 | °C |
Note: 6. Unused inputs should be held at VCC or Ground.
Electrical Characteristics (@TA = +25°C, unless otherwise specified.)
| Symbol | Parameter | Test Conditions | VCC | TA = -40°C to +85°C | TA = -40°C to +125°C | Unit | ||
|---|---|---|---|---|---|---|---|---|
| Min | Max | Min | Max | |||||
| VIH | High-level Input Voltage | 4.5V to 5.5V | 2.0 | 2.0 | V | |||
| VIL | Low-level Input Voltage | 4.5V to 5.5V | 0.8 | 0.8 | V | |||
| VOH | High-level Output Voltage | IOH = -20μA | 4.5V | 4.4 | 4.4 | V | ||
| IOH = -4mA | 4.5V | 3.80 | 3.70 | |||||
| VOL | Low-level Output Voltage | IOL = 20μA | 4.5V | 0.1 | 0.1 | V | ||
| IOL = 4mA | 4.5V | 0.33 | 0.4 | |||||
| II | Input Current | VI =GND to 6.0V | 6.0V | ± 1 | ± 1 | μA | ||
| ICC | Supply Current | VI = GND or VCC, IO = 0 | 6.0V | 20 | 40 | μA | ||
| ΔICC | Additional Supply Current | One input at VCC –2.1V Other pins at VCC or GND | 4.5V to 5.5V | 675 | 735 | μA |
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Page 4
Switching Characteristics
| Symbol | Parameter | Test Conditions | VCC | TA = +25°C | -40°C to +85°C | -40°C to +125°C | Unit | ||
|---|---|---|---|---|---|---|---|---|---|
| Min | Typ | Max | Max | Max | |||||
| tPD | Propagation Delay AN to YN | Figure 1 CL = 50pF | 4.5V | — | 11 | 24 | 30 | 36 | ns |
| tt | Transition Time | Figure 1 CL = 50pF | 4.5V | — | 7 | 15 | 19 | 22 | ns |
Operating Characteristics (@TA = +25°C, unless otherwise specified.)
| Parameter | Test Conditions | VCC = 5.5 V | Unit | |
|---|---|---|---|---|
| Typ | ||||
| Cpd | Power Dissipation Capacitance per Gate | f = 1 MHz | 28 | pF |
| CI | Input Capacitance | VI = VCC – or GND | 4 | pF |
Parameter Measurement Information
| Column 1 | Column 2 | Column 3 | Column 4 | Column 5 |
|---|---|---|---|---|
| Vcc | Inputs | VM | CL | |
| VI | tr/tf | |||
| 4.5V | 3.0V | 3ns | 1.5V | VOH/2 |

Voltage Waveform Pulse Duration
Notes: A. Includes test lead and test apparatus capacitance. B. All pulses are supplied at pulse repetition rate ≤ 1 MHz.

Voltage Waveform Propagation Delay Times Inverting and Non Inverting Outputs
C. Inputs are measured separately one transition per measurement. D. tPLH and tPHL are the same as tPD.
Figure 1 Load Circuit and Voltage Waveforms
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Page 5
Ordering Information


| Part Number | Package Code | Packaging | 7” Tape and Reel | |
|---|---|---|---|---|
| Quantity | Part Number Suffix | |||
| 74HCT32S14-13 | S14 | SO-14 | 2500/Tape & Reel | -13 |
| 74HCT32T14-13 | T14 | TSSOP-14 | 2500/Tape & Reel | -13 |
Marking Information
(1) SO-14, TSSOP-14

| Part Number | Package |
|---|---|
| 74HCT32S14 | SO-14 |
| 74HCT32T14 | TSSOP-14 |
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Page 6
Package Outline Dimensions (All dimensions in mm.)
Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for latest version.
Package Type: SO-14


Gauge Plane
L θ Detail “A”

Detail “A”
Package Type: TSSOP-14



Gauge Plane
Pin# 1 Indent
Seating Plane
Detail ‘A’
A
D
C
Detail ‘A’
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Page 7
Suggested Pad Layout
Please see AP02001 at http://www.diodes.com/datasheets/ap02001.pdf for latest version.
Package Type: SO-14
X
| Column 1 | Column 2 |
|---|---|
| Dimensions | Value (in mm) |
| X | 0.60 |
| Y | 1.50 |
| C1 | 5.4 |
| C2 | 1.27 |
C1
C2
Y
Package Type: TSSOP-14
X
| Column 1 | Column 2 |
|---|---|
| Dimensions | Value (in mm) |
| X | 0.45 |
| Y | 1.45 |
| C1 | 5.9 |
| C2 | 0.65 |
C1
C2
Y
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Page 8
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