NJU3712

The NJU3712 is an 8-bit serial to parallel converter especially apply to MPU outport expander.The effective outport assignment of MPU is available as the connection between NJU3712 and MPU is required only 4 lines.Up to 5MHz signal can be input to the serial data input terminal and the data is output from parallel output buffer through serial in parallel out shift register and parallel data latches.Furthermore,the NJU3712 output the serial data from SO terminal through the shift register,therefore output bit number can increase by cascade connection.The hvsteresis input circuit realized wide noise margin and high driverbilitv output buffer(25mA) can drive LED directly.

Features of the NJU3712 are:(1)8-bit serial in parallel out; (2)hysteresis input:0.5V tyP; (3)operating voltage:5V±10%; (4)operating frequency:5MHz or more; (5)output current:25mA; (6)C-MOS technology; (7)package outline:DIP/SOP 16;(8)cascade connection.

The absolute maximum ratings of the NJU3712 can be summarized as:(1)supply voltage range:-0.5 to +7.0V;(2)storage temperature range:-65 to +150;(3)operating temperature range:--25 to +85 ;(4)input voltage range:Vss-0.5V to Vdd+0.5V;(5)output voltage range:Vss-0.5V to Vdd+0.5V;(6)output current:±25mA;(7)power dissipation:700mW.The products described in this document are designed, developed and manufactured as contemplated for general use, including without limitation, ordinary industrial use, general office use, personal use, and household use, but are not designed, developed and manufactured as contemplated (1) for any use that includes fatal risks or dangers that, unless extremely high safety is secured, could have a serious effect to the public, and could lead directly to death, personal injury, severe physical damage or other loss (i.e., nuclear reaction control in nuclear facility, aircraft flight control, air traffic control, mass transport control, medical life support system, missile launch control in weapon system), or (2) for any use where chance of failure is intolerable (i.e., submersible repeater and artificial satellite).

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