Datasheet > 74HC373

74HC373

更新时间： 2024-11-28 06:31:51

品牌	Logo	应用领域
永盛 - Wing Shing		锁存器
页数	文件大小	规格书
6页	410K
描述
Octal Transparent D-type Latches W ith 3-State Outputs

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74HC373 数据手册

74HC373

Octal Transparent D-type Latches W ith 3-State Outputs

GENERAL DESCRIPTION

74HC373 is fabricated with high-speed silicon

gate CMOS technology. It has the high noise

immunity and low power consumption of standard

CMOS integrated circuits.

impedance state and increased drive provide the

capability to drive bus lines without interface or

pull-up components.

OE does not affect the internal operations of

the latches. Old data can be retained or new data

can be entered while the outputs are off.

These 8-bit latches with 3-state outputs are

designed specifically for driving highly capacitive

or relatively low-impedance loads. They are

particularly suitable for implementing buffer

registers, I/O ports, bi-directional bus drivers, and

working registers.

The eight latches in 74HC373 devices are

transparent D-type latches. While the latch-enable

(LE) input is high, the Q outputs follow the data (D)

inputs. When LE is low, the Q outputs are latched

at the levels that were set up at the D inputs.

An output-enable input (OE) makes the eight

outputs in either a normal logic state (high or low

logic levels) or the high-impedance state. In the

high-impedance state, the outputs neither load nor

drive the bus lines significantly. The high-

FEATURES

• Wide operating supply voltage range: 2-6V

• 8 high-current latches with 3-state outputs in a single package

• Full parallel access for loading

• Low input current: 1µA (Max.)

• Low power consumption: 80µA (Max.)

LOGIC DIAGRAM

1Q (2)

2Q (5)

3Q (6)

4Q (9)

5Q (12)

6Q (15)

7Q (16)

8Q (19)

OE (1)

LE (11)

1D (3)

2D (4)

3D (7)

4D (8)

5D (13)

6D (14)

7D (17)

8D (18)

FUNCTIONAL DESCRIPTION

Truth Table

Inputs

Outputs

H = High Level (steady state). L= Low Level (steady state)

X = Irrelevant (any input, including transitions)

12 3 4 5 6

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与74HC373相关器件

型号	品牌	获取价格	描述	数据表
74HC373BQ	NXP	获取价格	Octal D-type transparent latch; 3-state
74HC373BQ	NEXPERIA	获取价格	Octal D-type transparent latch; 3-stateProduction
74HC373BQ,115	NXP	获取价格	74HC(T)373 - Octal D-type transparent latch; 3-state QFN 20-Pin
74HC373BQ-Q100	NXP	获取价格	Octal D-type transparent latch; 3-state
74HC373BQ-Q100	NEXPERIA	获取价格	Octal D-type transparent latch; 3-stateProduction
74HC373BQ-Q100,115	NXP	获取价格	74HC(T)373-Q100 - Octal D-type transparent latch; 3-state QFN 20-Pin
74HC373D	NXP	获取价格	Octal D-type transparent latch; 3-state
74HC373D	NEXPERIA	获取价格	Octal D-type transparent latch; 3-stateProduction
74HC373D	TOSHIBA	获取价格	Octal D-Type Latch, SOIC20
74HC373D,652	NXP	获取价格	74HC(T)373 - Octal D-type transparent latch; 3-state SOP 20-Pin