Overview
The 74HC137DB,112 is a 3-to-8 line decoder and demultiplexer integrated circuit produced by Nexperia USA Inc. This device is part of the 74HC series and is designed to decode three binary weighted address inputs (A0, A1, and A2) into eight mutually exclusive outputs (Y0 to Y7). It features a latch enable (LE) and two output enable (E1, E2) inputs, allowing for flexible control over the output states.
The 74HC137DB,112 is packaged in a 16-lead Shrink Small Outline Package (SSOP16) and is suitable for a wide range of applications due to its robust specifications and compliance with various industry standards.
Key Specifications
| Parameter | Value |
|---|---|
| Type Number | 74HC137DB,112 |
| Package | SSOP16 (SOT338-1) |
| Supply Voltage | 2.0 V to 6.0 V |
| Operating Temperature | -40°C to +125°C |
| Output Drive Capability | 5.2 mA (high and low) |
| Propagation Delay (tpd) | Not specified, but typical for 74HC series is around 20-30 ns |
| ESD Protection | HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V, CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Lead Free Status / RoHS Status | Lead free / RoHS Compliant |
Key Features
- Combines 3-to-8 decoder with 3-bit latch
- Multiple input enable for easy expansion or independent controls
- Active LOW mutually exclusive outputs
- Wide supply voltage range from 2.0 to 6.0 V
- CMOS low power dissipation
- High noise immunity
- Latch-up performance exceeds 100 mA per JESD 78 Class II Level B
- Complies with JEDEC standards (JESD8C and JESD7A)
- Inputs include clamp diodes for voltage protection
Applications
The 74HC137DB,112 is versatile and can be used in various electronic systems, including:
- Automotive electronics for decoding and demultiplexing signals
- Industrial control systems requiring robust and reliable decoding
- Consumer electronics such as audio and video equipment
- Computing and networking devices for signal routing and decoding
- Medical devices where precise signal decoding is necessary
Q & A
- What is the primary function of the 74HC137DB,112?
The primary function is to decode three binary weighted address inputs into eight mutually exclusive outputs and to act as a demultiplexer with address latches.
- What are the package options available for the 74HC137DB?
The 74HC137DB is available in SSOP16 (SOT338-1) package.
- What is the supply voltage range for the 74HC137DB,112?
The supply voltage range is from 2.0 V to 6.0 V.
- What is the operating temperature range for this device?
The operating temperature range is from -40°C to +125°C.
- Does the 74HC137DB,112 have ESD protection?
- Is the 74HC137DB,112 RoHS compliant?
- What is the moisture sensitivity level (MSL) of the 74HC137DB,112?
The MSL is 1 (Unlimited).
- How do the latch enable and output enable inputs work?
The latch enable (LE) stores the data present before a LOW-to-HIGH transition, and the output enable inputs (E1, E2) control the output states independently of the address inputs or latch operation.
- What are some typical applications for the 74HC137DB,112?
It is used in automotive, industrial, consumer electronics, computing, and medical devices.
- Does the 74HC137DB,112 comply with any industry standards?
