74HC595BQ-Q100屬于集成電路（IC）的移位寄存器。由安世半導(dǎo)體(中國(guó))有限公司制造生產(chǎn)的74HC595BQ-Q100移位寄存器移位寄存器是低級(jí)邏輯器件，通常用于在串行和并行方式之間轉(zhuǎn)換數(shù)字邏輯信號(hào)形式的數(shù)據(jù)，或在數(shù)字字內(nèi)移動(dòng)數(shù)據(jù)位的位置。移位寄存器通常使用集成到一個(gè)設(shè)備中的一組觸發(fā)器來(lái)實(shí)現(xiàn)，常用于集成度更高的邏輯器件，但仍可用于 I/O 擴(kuò)展等應(yīng)用，在這些應(yīng)用中離散形式的函數(shù)可能會(huì)非常有用。

1. General description

The 74HC595-Q100; 74HCT595-Q100 is an 8-bit serial-in/serial or parallel-out shift register with

a storage register and 3-state outputs. Both the shift and storage register have separate clocks.

The device features a serial input (DS) and a serial output (Q7S) to enable cascading and an

asynchronous reset MR input. A LOW on MR will reset the shift register. Data is shifted on the

LOW-to-HIGH transitions of the SHCP input. The data in the shift register is transferred to the

storage register on a LOW-to-HIGH transition of the STCP input. If both clocks are connected

together, the shift register will always be one clock pulse ahead of the storage register. Data in the

storage register appears at the output whenever the output enable input (OE) is LOW. A HIGH on

OE causes the outputs to assume a high-impedance OFF-state. Operation of the OE input does

not affect the state of the registers. Inputs include clamp diodes. This enables the use of current

limiting resistors to interface inputs to voltages in excess of VCC.

This product has been qualified to the Automotive Electronics Council (AEC) standard Q100

(Grade 1) and is suitable for use in automotive applications.

2. Features and benefits

? Automotive product qualification in accordance with AEC-Q100 (Grade 1)

? Specified from -40 °C to +85 °C and from -40 °C to +125 °C

? 8-bit serial input

? 8-bit serial or parallel output

? Storage register with 3-state outputs

? Shift register with direct clear

? 100 MHz (typical) shift out frequency

? Complies with JEDEC standard no. 7A

? Input levels:

? For 74HC595-Q100: CMOS level

? For 74HCT595-Q100: TTL level

? ESD protection:

? MIL-STD-883, method 3015 exceeds 2000 V

? HBM JESD22-A114F exceeds 2000 V

? MM JESD22-A115-A exceeds 200 V (C = 200 pF, R = 0 Ω)

? Multiple package options

? DHVQFN package with Side-Wettable Flanks enabling Automatic Optical Inspection (AOI) of

solder joints

3. Applications

? Serial-to-parallel data conversion

? Remote control holding register