NJU3711A

NJU3711A 8-BIT SERIAL TO PARALLEL CONVERTER ! GENERAL DESCRIPTION The NJU3711A is an 8-bit serial to parallel converter especially applying to MPU outport expander. It can operate from 2.4V to 5.5V. The effective outport assignment of MPU is available as the connection between NJU3711A 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. The hysteresis input circuit realizes wide noise margin and the high drive-ability output buffer (25mA) can drive LED directly. ! PACKAGE OUTLINE NJU3711AV ! FEATURES # 8-Bit Serial In Parallel Out # Hysteresis Input 0.5V typ at 5V # Operating Voltage 2.4 to 5.5V # Maximum Operating Frequency 5MHz # Output Current 25mA at 5V, 5mA at 3V # C-MOS Technology # Package Outline SSOP14 ! BLOCK DIAGRAM ! PIN CONFIGURATION P3 1 P4 2 P5 3 VSS 4 P6 5 P7 6 P8 7 14 13 12 11 10 9 8 NJU3711AV VDD P2 P1 CLR STB CLK DATA DATA CLK P1 P2 P3 Shift Register Latch Circuit STB CLR Controller Circuit P7 P8 Ver.2008-02-22 -1- NJU3711A ! TERMINAL DESCRIPTION No. SYMBOL I/O 1 P3 O 2 P4 O 3 P5 O 4 VSS 5 P6 O 6 P7 O 7 P8 O 8 DATA I 9 CLK I 10 STB I 11 CLR I 12 P1 O 13 P2 O 14 VDD - FUNCTION Parallel Conversion Data Output Terminals GND Parallel Conversion Data Output Terminals Serial Data Input Terminal Clock Signal Input...