NJU3711M Nisshinbo

NJU3711 8-BIT SERIAL TO PARALLEL CONVERTER GENERAL DESCRIPTION PACKAGE OUTLINE The NJU3711 is an 8-bit serial to parallel converter especially applying to MPU outport expander. The effective outport assignment of MPU is available as the connection between NJU3711 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 NJU3711M NJU3711D 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. NJU3711V PIN CONFIGURATION FEATURES 8-Bit Serial In Parallel Out V Hysteresis Input 0.5V typ 1 14 DD P3 13 P4 2 P2 Operating Voltage 5V10% P1 P5 3 12 Maximum Operating Frequency 5MHz and more V 4 11 CLR SS Output Current 25mA 5 10 STB P6 C-MOS Technology P7 6 9 CLK Package Outline DIP14/DMP14/SSOP14 P8 7 8 DATA NJU3711D/M/V BLOCK DIAGRAM P1 DATA P2 CLK P3 P7 P8 STB Controller Circuit CLR Ver.2003-11-18 - 1 - Shift Register Latch Circuit NJU3711 TERMINAL DESCRIPTION No. SYMBOL I/O FUNCTION 1 P3 O Parallel Conversion Data Output Terminals 2 P4 O 3 P5 O 4 V - GND SS 5 P6 O 6 P7 O Parallel Conversion Data Output Terminals 7 P8 O 8 DATA I Serial Data Input Terminal 9 CLK I Clock Signal Input Terminal STB 10 I Strobe Signal Input Terminal 11 CLR I Clear Signal Input Terminal 12 P1 O Parallel Conversion Data Output Terminals 13 P2 O 14 V - Power Supply Terminal (4.5 to 5.5V) DD Ver.2003-11-18 - 2 -