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MC74HC1G08DTT1G

Single 2-input AND gate, 74HC, 2-6V, 7.5ns@5V, CMOS, push-pull, TSOP-5/SOT-23-5

6800

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Pieza del fabricante：

MC74HC1G08DTT1G

Paquete：

TSOP-5 / SOT-23-5 (3.0 x 1.5 x 1.0mm)

Descripción

Productos

The MC74HC1G08DTT1G is a single 2-input AND gate from onsemi in the 74HC high-speed CMOS family. Operating from 2.0V to 6.0V with 7.5ns propagation delay at 5V, it provides the AND logic function (Y = A·B) in a tiny TSOP-5 (SOT-23-5) package. With balanced propagation delays, ±5.2mA output drive, and input clamp diodes, it is ideal for single-gate logic glue in space-constrained designs.

Especificaciones

Logic Function	Single 2-Input AND Gate (Y = A·B)
Tensión de alimentación	2.0V to 6.0V
Retardo de propagación	7.5ns typ @ 5V
Output Drive	±5.2mA @ 4.5V
Corriente de reposo	1µA max
Input Type	Standard CMOS
Output Type	Push-Pull CMOS
Paquete	TSOP-5 / SOT-23-5 (3.0 x 1.5mm)
Temperatura de funcionamiento	-55°C to +125°C

Características

Single 2-input AND gate in TSOP-5 package
74HC high-speed CMOS technology
2.0V to 6.0V supply range
7.5ns propagation delay at 5V
Balanced propagation delays
Input clamp diodes
Low power consumption
Pb-free and RoHS compliant

Aplicaciones

Signal gating / enabling
Clock enable control
Condition monitoring (two conditions must be true)
Chip select qualification
Single-gate logic glue

Introducción del producto:MC74HC1G08DTT1G Presentación del producto

The MC74HC1G08DTT1G from onsemi is a single 2-input AND gate in the 74HC (High-Speed CMOS) family, providing the logic AND function Y = A·B in a tiny TSOP-5 (SOT-23-5) package. The output is high only when both inputs are high; for all other input combinations, the output is low. The 2.0V to 6.0V supply range covers 3.3V and 5V logic systems, and the 7.5ns typical propagation delay at 5V provides fast switching. The device is useful for signal gating (one input as signal, the other as enable), condition monitoring (two conditions must be simultaneously true), and chip select qualification. The DTT1G suffix specifies TSOP-5 tape-and-reel packaging rated for -55°C to +125°C.

Principio de funcionamiento:MC74HC1G08DTT1G Principio de funcionamiento

The MC74HC1G08DTT1G implements the 2-input AND function using a CMOS gate structure. The AND function produces a high output only when both inputs A and B are at a logic high level. In CMOS implementation, the AND gate is typically constructed as a NAND gate followed by an inverter, using complementary PMOS and NMOS transistor networks. The output stage is push-pull, providing active pull-up and pull-down with rail-to-rail output swing. Input clamp diodes protect the gate oxide from electrostatic discharge by limiting the input voltage to VCC + 0.5V and -0.5V.

Descripción de la clavija:MC74HC1G08DTT1G Definición y funciones de las clavijas

Pin	Nombre	Descripción
1	A	Entrada A
2	B	Entrada B
3	GND	Suelo
4	Y	AND output (Y = A AND B)
5	VCC	Supply voltage (2.0V to 6.0V)

Application Scenarios:In which products and applications isMC74HC1G08DTT1G usado

Clock Gating: Gate a clock signal with an enable control. Connect the clock to input A and the enable signal to input B. When enable is high, the clock passes through to output Y. When enable is low, Y stays low regardless of the clock state. This is a simple clock gate that prevents clock distribution to unused modules, reducing dynamic power consumption.
Dual-Condition Chip Select: Qualify a chip select with a second condition. Connect the address-decoded chip select to input A and a bus cycle indicator (e.g., read/write strobe) to input B. The chip is selected only when both the address matches AND the bus cycle is active, preventing spurious accesses.
Safety Interlock: Implement a safety interlock where two conditions must be simultaneously true for operation. Connect a door-closed sensor to input A and a guard-present sensor to input B. The AND output goes high (enabling the machine) only when both safety conditions are met. The hardware AND gate ensures the interlock cannot be bypassed by software.

Alternative Models:What chips are recommended as replacements for MC74HC1G08DTT1G

Modelo	VCC	Speed	Diferencia clave
SN74LVC1G08DCKR	1.65-5.5V	3.6ns	TI LVC, lower voltage, faster
NC7SZ08P5X	1.65-5.5V	3.5ns	Renesas, similar spec
74AUP1G08GF	0.8-3.6V	14ns	Nexperia, ultra-low power
MC74VHC1G08DTT1G	1.65-5.5V	3.5ns	onsemi VHC, faster