SN74ALVCH373PWRE4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The SN74ALVCH373PWRE4 is an octal transparent D-type latch with 3-state outputs from Texas Instruments using ALVCH CMOS technology. It offers 8-bit data latching with active-low output enable, operating from 1.65V to 3.6V supply and 24mA output drive in a 20-pin TSSOP package. Ideal for low-voltage bus interface and data buffering applications.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- SN74ALVCH373PWRE4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SN74ALVCH373PWRE4?
- Octal 8-bit transparent latch with 3-state outputs and dual enable controls (active-low OE and active-high LE) for flexible bus management
- ALVCH CMOS technology with 24mA output drive current and 50pF load capacitance, supporting low-voltage operation from 1.65V to 3.6V
- 20-pin TSSOP package (PWRE4 tape-and-reel suffix) for high-density PCB assembly with RoHS-compliant, lead-free construction
What is SN74ALVCH373PWRE4 used for?
The SN74ALVCH373PWRE4 is used in low-voltage microprocessor and DSP systems as an address or data bus latch, capturing 8-bit parallel data when the latch enable is asserted. Its 3-state outputs allow seamless connection to shared buses in memory interfaces, FPGAs, and multi-master designs where bus contention must be prevented. It is also applied in portable electronics, communications hardware, and industrial automation controllers requiring reliable data buffering at 1.8V to 3.3V supply levels.
What are the specifications of SN74ALVCH373PWRE4?
| YTEOL | 0 |
| Control Type | ENABLE LOW/HIGH |
| Count Direction | UNIDIRECTIONAL |
| Family | ALVC/VCX/A |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS DRIVER |
| Max I(ol) | 0.024A |
| Number of Bits | 8 |
| Number of Functions | 1 |
| Number of Ports | 2 |
| Output Characteristics | 3-STATE |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP20,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.02mA |
| Prop. Delay@Nom-Sup | 3.6ns |
| Propagation Delay (tpd) | 6.1ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 3.6V |
| Supply Voltage-Min (Vsup) | 1.65V |
| Supply Voltage-Nom (Vsup) | 1.8V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Malaysia |
Where can I find the SN74ALVCH373PWRE4 datasheet?
SN74ALVCH373PWRE4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SN74ALVCH373PWRE4?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the supply voltage range for the SN74ALVCH373PWRE4?
The SN74ALVCH373PWRE4 operates from a supply voltage range of 1.65V to 3.6V, covering 1.8V, 2.5V, and 3.3V logic standards. This wide range makes it highly versatile for modern low-voltage digital systems in embedded computing, FPGAs, and mobile applications.
What is the difference between a transparent latch (373) and an edge-triggered flip-flop (374)?
The SN74ALVCH373PWRE4, as a 373-type device, is a level-sensitive transparent latch: when the latch enable (LE) is HIGH, the outputs follow the inputs in real time. In contrast, a 374-type edge-triggered flip-flop only captures data on the clock edge. Transparent latches are preferred when data must be held during address demultiplexing or bus phase transitions.
What does the 'PWRE4' suffix indicate on the SN74ALVCH373PWRE4?
In the part number SN74ALVCH373PWRE4, 'PW' designates the 20-pin TSSOP package, 'R' indicates the tape-and-reel packaging for automated pick-and-place assembly, and 'E4' confirms the RoHS-compliant, lead-free (Pb-free) construction per JESD-609 code e4.
How much output drive current can the SN74ALVCH373PWRE4 provide?
The SN74ALVCH373PWRE4 provides a maximum output low current (IOL) of 24mA per output pin. This drive strength is sufficient to interface directly with standard TTL and CMOS loads, LED indicators, or bus termination networks in low-voltage digital circuits.
What are equivalent or alternative parts for the SN74ALVCH373PWRE4?
Functional alternatives include the SN74LVC373A (2V–5.5V, 5V-tolerant inputs), SN74ALVC373 (same ALVC family, without 'H' drive strength), and 74VHC373 from other manufacturers. The 'H' in ALVCH indicates enhanced output drive compared to standard ALVC, making the SN74ALVCH373PWRE4 preferable in applications requiring higher bus drive capability.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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