1. Company Information:

️· Company: Aeroflex Colorado Springs (Likely now part of Keysight Technologies)
️· Location: Colorado Springs
️· Document Type: Datasheet
️· Document Status: Can be Advanced (In Development), Preliminary (Shipping Prototype), or Final (Shipping QML – Qualified for Military – & Reduced High-Reliability)

2. Product Information:

️· Products: UT54ACS541 and UT54ACTS541
️· Type: Buffer/Driver IC (Octal)
️· SMD Part Numbers:
- UT54ACS541: Drawing Number 96594
- UT54ACTS541: Drawing Number 96595

3. Specifications:

️· Radiation Tolerance:
- 1E5 rads(Si)
- 3E5 rads(Si)
- 5E5 rads(Si)
- 1E6 rads(Si)
️· Supply Voltage (V DD): 4.5 to 5.5V
️· Input Voltage (VIN): 0 to VDD
️· Operating Temperature: -55 °C to +125 °C
️· DC Electrical Characteristics (Highlights):
- VIL (Low-Level Input Voltage): 0.8 - 0.3VDD (ACTS/ACS)
- VIH (High-Level Input Voltage): 0.5VDD - 0.7VDD (ACTS/ACS)
- IIN (Input Leakage Current): -1 to 1 μA
- VOL (Low-Level Output Voltage): 0.25 - 0.40 V
- VOH (High-Level Output Voltage): VDD - 0.25 to VDD
- IOS (Short-Circuit Output Current): -300 to 300 mA
- IDDQ (Quiescent Supply Current): 10 μA
️· AC Electrical Characteristics (Highlights):
- tPLH (An to Yn): 1-11 ns
- tPHL (An to Yn): 1-14 ns
- tPZL (G low to Yn active): 2-14 ns
- tPZH (G low to Yn active): 2-15 ns

4. Packaging:

️· Package Types:
- Flatpack (20-lead ceramic)
- Dual-in-line (DIP)
️· Lead Finish Options:
- Solder (A)
- Gold (C)
- Optional (X)
️· Class Designator:
- Q (QML Class Q)
- V (QML Class V)
️· Drawing Numbers: (As listed under Product Information)

5. Important Notes and Key Points:

️· Radiation Hardening: The devices are designed for radiation tolerance and require a specified radiation dose when ordering.
️· QML Requirement: QML (Qualified for Military) parts require radiation hardening.
️· Prototype Status: The datasheet is preliminary and subject to change.
️· Lead Finish Specification: The lead finish (solder or gold) must be specified when ordering.
️· Limits: Stresses beyond the listed absolute maximum ratings may cause permanent damage.
️· Design Limits: Some values are design limits but not guaranteed or tested.
️· Power Dissipation: Power dissipation is specified per switching output.
️· Testing Conditions: Functional tests are conducted with specified input test conditions.
️· Device Types 02 and 03: Special device types are offered with unique TID tolerance guarantees and test conditions.