1. General description

The 74HC109-Q100; 74HCT109-Q100 is a dual positive edge triggered JK flip-flop featuring

individual nJ and nK inputs. It has clock (nCP) inputs, set (nSD) and reset (nRD) inputs and

complementary nQ and nQ outputs. The set and reset are asynchronous active LOW inputs and

operate independently of the clock input. The nJ and nK inputs control the state changes of the

flip-flops as described in the mode select function table. The nJ and nK inputs must be stable one

set-up time prior to the LOW-to-HIGH clock transition for predictable operation. The JK design

allows operation as a D-type flip-flop by connecting the nJ and nK inputs together. Inputs include

clamp diodes. It enables the use of current limiting resistors to interface inputs to voltages in

excess of VCC.

Schmitt-trigger action in the clock input makes the circuit highly tolerant to slower clock rise and fall

times.

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

? Input levels:

? For 74HC109-Q100: CMOS level

? For 74HCT109-Q100: TTL level

? J and K inputs for easy D-type flip-flop

? Toggle flip-flop or do nothing mode

? Specified in compliance with JEDEC standard no. 7A

? 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)

74HC109D-Q100屬于集成電路（IC） > 觸發(fā)器。安世半導體(中國)有限公司制造生產(chǎn)的74HC109D-Q100觸發(fā)器觸發(fā)器是能夠存儲單個邏輯狀態(tài)或信息“位”的基本數(shù)字存儲器件。這些器件至少有兩個輸入；一個或多個用于傳遞要存儲的數(shù)據(jù)，另一個用于指示存儲該數(shù)據(jù)的時間點。不同的觸發(fā)器類型，例如 D（延遲）、SR（置位復位）和 JK，對提供給其輸入的信號有不同的響應，可用于實現(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)僅在接收到有效時鐘信號時才會改變。