SN74LVC823APWR屬于集成電路（IC）的觸發(fā)器。由美國德州儀器公司制造生產(chǎn)的SN74LVC823APWR觸發(fā)器觸發(fā)器是能夠存儲(chǔ)單個(gè)邏輯狀態(tài)或信息“位”的基本數(shù)字存儲(chǔ)器件。這些器件至少有兩個(gè)輸入；一個(gè)或多個(gè)用于傳遞要存儲(chǔ)的數(shù)據(jù)，另一個(gè)用于指示存儲(chǔ)該數(shù)據(jù)的時(shí)間點(diǎn)。不同的觸發(fā)器類型，例如 D（延遲）、SR（置位復(fù)位）和 JK，對(duì)提供給其輸入的信號(hào)有不同的響應(yīng)，可用于實(shí)現(xiàn)不同的邏輯功能。這些器件與鎖存器的不同之處在于它們是邊緣敏感器件，其保持的邏輯狀態(tài)僅在接收到有效時(shí)鐘信號(hào)時(shí)才會(huì)改變。

FEATURES

· Operates From 1.65 V to 3.6 V

· Inputs Accept Voltages to 5.5 V

· Max tpd of 7.9 ns at 3.3 V

· Typical VOLP (Output Ground Bounce)

<0.8 V at VCC = 3.3 V, TA = 25°C

· Typical VOHV (Output VOH Undershoot)

>2 V at VCC = 3.3 V, TA = 25°C

· Supports Mixed-Mode Signal Operation on All

Ports (5-V Input/Output Voltage With

3.3-V VCC)

· Ioff Supports Partial-Power-Down Mode

Operation

· Latch-Up Performance Exceeds 250 mA Per

JESD 17

· ESD Protection Exceeds JESD 22

– 2000-V Human-Body Model (A114-A)

– 200-V Machine Model (A115-A)

– 1000-V Charged-Device Model (C101)

DESCRIPTION/ORDERING INFORMATION

This 9-bit bus-interface flip-flop is designed for 1.65-V to 3.6-V VCC operation.

The SN74LVC823A is designed specifically for driving highly capacitive or relatively low-impedance loads. It is

particularly suitable for implementing wider buffer registers, I/O ports, bidirectional bus drivers with parity, and

working registers.

With the clock-enable (CLKEN) input low, the nine D-type edge-triggered flip-flops enter data on the low-to-high

transitions of the clock. Taking CLKEN high disables the clock buffer, latching the outputs. This device has

noninverting data (D) inputs. Taking the clear (CLR) input low causes the nine Q outputs to go low,

independently of the clock.