General-purpose CMOS Logic IC Series (BU4S,BU4000B Series) High Voltage CMOS Logic ICs <Function Logic> BU4015B,BU4015BF,BU4021B,BU4021BF, No.09050EAT04 BU4094BC,BU4094BCF,BU4094BCFV,BU4538B,BU4028B Description BU4015B series ICs are 4-stage static shift registers, each consisting of 2 circuits. The D flip-flops of each stage share a common reset input, enabling asynchronous reset at any time. BU4021B series ICs are 8-bit static shift registers configured with 8 register cells, each of which has parallel input. Control of the parallel/serial input (P/S) enables serial input/output with clock synchronization and well as parallel input/serial output conversions. BU4094BC series ICs are shift/store registers, each consisting of an 8-bit shift register and an 8-bit latch. Output can be held in the data transfer mode because the data read into the shift register can be latched by the asynchronous strobe input, The BU4538B IC is a monostable multivibrator that can be reset and retriggered from either edge of an input pulse. A wide range of accurate output pulse widths is available because the output pulse width and accuracy are determined by the external timing constants Cx an Rx. The BU4028B IC is a decoder which converts BCD signals into decimal signals. Of the 10 outputs (Q0 ~ Q9), those corresponding to the input codes A-D are set to H, while the others are set to L. Features 1) Low power consumption 2) Wide operating supply voltage range 3) High impedance 4) High fan out 5) L-TTL2 and LS-TTL1 inputs can be driven directly. Applications BU4015B: serial / parallel data conversion and ring counter. BU4021B: control circuits, timing circuits and as a general purpose register requiring high degree of noise tolerance. BU4094BC: series/parallel data conversion and data receivers. BU4538B: can obtain the output pulse amplitude with improved accuracy by external capacity and resistance. BU4028B: code conversion, address decoding, memory selection control, demultiplexing or readout and decoding, etc. Lineup 2 High VoltageCMOS Logic BU4015B/ (Dual 4-bit static shift register) 4-bit register circuits BU4015BF <Function Logic> 1 BU4021B/ (8-bit static shift register) 8-bit register circuit BU4021BF BU4094BC/ 2 (8-bit bus compatible shift/store register) 8-bit register BU4094BCF/ circuits BU4094BCFV 1 Monostable (Dual high accuracy monostable multivibrator) BU4538B circuit multivibrator 1 BCD (BCD to Decimal decoder) BU4028B circuit Decimal www.rohm.com 2009.06 - Rev.A 1/17 2009 ROHM Co., Ltd. All rights reserved. BU4015B,BU4015BF,BU4021B,BU4021BF, Technical Note BU4094BC,BU4094BCF,BU4094BCFV,BU4538B,BU4028B Absolute Maximum Ratings Limit Parameter Symbol Unit BU4015B BU4021B BU4094BC BU4538B BU4028B Power Supply Voltage VDD -0.3 to 18 V Supply Current Iin 10 mA Operating Temperature Topr -40 to 85 Storage Temperature Tstg -55 to 150 Input Voltage VIN -0.3 to VDD+0.3 V Maximum Junction Temperature Tjmax 150 Recommended Operating Conditions Limit Parameter Symbol Unit BU4015B BU4021B BU4094BC BU4538B BU4028B Operating Power Supply VDD 3 to 16 (3 to 18V BU4094BC) V Input Voltage VIN 0 to VDD V Thermal Derating Curve 1400 1250 mV BU4 (*1) 620 mV BU4FV (*2) 1200 380 mV BU4F (*3) ()Below shows BU4 1000 BU4015B BU4021B 800 BU4094BC BU4538B BU4028B 600 400 (*1) (*2) (*3) Unit 200 10.0 5.0 3.1 mW/ 85 When used at Ta=25 or higher the value above is reduced per 1. Power Dissipation 0 25 50 75 100 125 150 175 is measured by using the sample mounted on a 70mm70mm1.6mm FR4 glass-epoxy PCB (cupper area is less than 3%) Ambient temperature Ta Input / Output Equivalent Circuits VDD VDD VDD VDD GND GND GND GND Input Output www.rohm.com 2009.06 - Rev.A 2/17 2009 ROHM Co., Ltd. All rights reserved. Power dissipation Pd mW