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SN74HC112N_TI(德州仪器)中文资料_英文资料_价格_PDF手册

2024/5/14 16:05:46

419

SN74HC112N

具有清零和预置端的双路负边沿触发式 J-K 触发器

 


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1 Features

 

• Wide operating voltage range of 2 V to 6 V

• Outputs can drive up to 10 LSTTL loads

• Low power consumption, 40-μA max ICC

• Typical tpd = 13 ns

• ±4-mA output drive at 5 V

• Low input current of 1 μA max

 

                                 


 

 

2 Description

 

The ’HC112 devices contain two independent J-K negative-edge-triggered flip-flops. A low level at the preset (PRE) or clear (CLR) inputs sets or resets the outputs, regardless of the levels of the other inputs. When PRE and CLR are inactive (high), data at the J and K inputs meeting the setup time requirements are transferred to the outputs on the negative-going edge of the clock (CLK) pulse. Clock triggering occurs at a voltage level and is not directly related to the fall time of the CLK pulse. Following the hold-time interval, data at the J and K inputs may be changed without affecting the levels at the outputs. These versatile flipflops perform as toggle flip-flops by tying J and K high.