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74AHCT1G08DCKRG4
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Product Detailed Parameters
- Description：IC GATE AND 1CH 2-INP SC70-5
- Series：74AHCT
- Mfr：Texas Instruments
- Package：Tape & Reel (TR)
- Logic Type：AND Gate
- Number of Circuits：1
- Number of Inputs：2
- Features：-
- Voltage - Supply：4.5V ~ 5.5V
- Current - Quiescent (Max)：1 µA
- Current - Output High, Low：8mA, 8mA
- Input Logic Level - Low：0.8V
- Input Logic Level - High：2V
- Max Propagation Delay @ V, Max CL：7.9ns @ 5V, 50pF
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Supplier Device Package：SC-70-5
- Package / Case：5-TSSOP, SC-70-5, SOT-353
- Grade：-
- Qualification：-
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Overview
The SN74AHCT1G08DCKRG4 is a single 2-input AND gate from Texas Instruments, belonging to the 74AHCT logic family. It operates within a supply voltage range of 4.5 V to 5.5 V and features TTL-compatible inputs. The device provides symmetric output drive currents of 8 mA for both high and low states. Maximum propagation delay is specified at 7.9 ns under standard test conditions (5 V supply, 50 pF load). It is housed in a compact SC-70 (SOT-353) surface-mount package with five pins.
Feature Summary
- TTL-compatible input thresholds enable direct interfacing with legacy 5 V logic systems.
- High-speed performance supports data rates requiring sub-10 ns switching times.
- Robust output drive capability ensures signal integrity across moderate capacitive loads.
Applications
- Level shifting between 3.3 V control signals and 5 V peripheral interfaces
- Signal gating in digital communication protocols
- Address decoding in microcontroller-based embedded systems
Procurement Notes
Verify the suffix 'G4' indicates lead-free composition and RoHS compliance. Confirm the SC-70 package variant matches PCB footprint requirements. Ensure operating temperature range aligns with system environmental specifications. Cross-reference datasheet electrical characteristics against target application timing constraints.
Selection Notes
Select this component when TTL-level compatibility is required alongside high-speed operation. The AHCT series bridges CMOS speed with TTL input voltage levels. Consider the SC-70 package for space-constrained designs. Verify that the 5.5 V maximum rating suits the highest expected supply voltage in the circuit.
Part Context
This part belongs to the 74AHCT1G08 family of single-function gates. The 'AHC' denotes advanced high-speed CMOS technology, while 'T' signifies TTL-compatible inputs. The '1G' indicates a single gate configuration, and '08' identifies the AND function. The 'DCKR' suffix specifies the SC-70 package and reel tape packaging format.
Replacement Considerations
SN74AHCT1G08DCKRE4: Lead-free version with identical electrical characteristics and pinout. SN74AHCT1G08DBVR: Alternative SOT-23-5 package offering similar performance in a different form factor. SN74LVC1G08DCKR: Lower voltage operation (1.65 V–5.5 V) but lacks TTL-compatible inputs.
