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NJU3714G-TE2
NJU3714 12-BIT SERIAL TO PARALLEL CONVERTER PACKAGE OUTLINE GENERAL DESCRIPTION The NJU3714 is a 12-bit serial to parallel converter especially applying to MPU outport expander. The effective outport assignment of MPU is available as the connection between NJU3714 and MPU using only 4 lines. The serial data synchronizing with 5MHz or more clock can be input to the serial data input terminal and the data are output from parallel output buffer through serial in parallel out shift register and parallel data latches. Furthermore, the NJU3714 output the serial data from SO terminal through the shift register, therefore output bit number can increase by cascade connection. The hysteresis input circuit realizes wide noise margin and the high drive-ability output buffer (25mA) can drive LED directly. NJU3714G NJU3714D NJU3714V PIN CONFIGURATION FEATURES 12-Bit Serial In Parallel Out Hysteresis Input 0.5V typ Operating Voltage 5V±10% Maximum Operating Frequency 5MHz and more Output Current 25mA C-MOS Technology Package Outline DIP20/SOP20/SSOP20 P5 P6 P7 P8 VSS P9 P10 P11 P12 SO 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 VDD P4 P3 P2 P1 VSS CLR STB CLK DATA NJU3714D/G/V BLOCK DIAGRAM P1 DATA Latch Circuit Shift Register P2 CLK P3 P11 P12 SO STB CLR Ver.2003-11-18 Controller Circuit -1-
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