# UCD4015B CMOS Dual 4-Stage Shift Register

## Description & Features

· Dual, independent 4-stage serial-in/parallel-out shift registers.
· D-type, master-slave flip-flops in each stage.
· Serial data shifts with each positive clock transition.
· Reset all stages with a high signal on the reset line.
· Expandable to 8+ stages with multiple UCD4015B ICs.
· 12 MHz typical clock rate (at 10V).
· 1μA maximum input current (at 18V).
· Fully static operation.
· 8 master-slave flip-flops with input/output buffering.

## Applications

· General-purpose register.
· Serial-in/parallel-out data queueing.
· Serial-to-parallel data conversion.

## Ordering Information

Part Number	Package	Packing
UCD4015BL-D16-T	DIP-16	Tube
UCD4015BG-D16-T	DIP-16	Tube
UCD4015BG-S16-R	SOP-16	Tape Reel
UCD4015BG-P16-R	TSSOP-16	Tape Reel

## Absolute Maximum Ratings

· Supply Voltage (VDD): -0.5 to 20V
· Input/Output Voltage: -0.5 to VCC + 0.5V
· Input Clamp Current: ±10 mA
· Power Dissipation: 750mW (DIP-16), 500mW (SOP-16), 450mW (TSSOP-16)
· Operating Temperature: -40 to +125°C
· Storage Temperature: -65 to +150°C

## Recommended Operating Conditions

· Supply Voltage (VDD): 3 to 18V
· Clock Pulse Width: VDD=5V (180ns), VDD=10V (80ns), VDD=15V (50ns)
· Clock Frequency: VDD=5V (3 MHz), VDD=10V (6 MHz), VDD=15V (8.5 MHz)
· Clock Rise/Fall Time: VDD=5V (15μs), VDD=10V (6μs), VDD=15V (2μs)
· Data Setup Time: VDD=5V (70ns), VDD=10V (40ns), VDD=15V (30ns)

## Electrical Characteristics (Sample)

· Quiescent Supply Current (IDD): 0.04μA to 100μA (depending on VDD)
· Output Low Sink Current (IOL): 0.51mA to 6.8mA (depending on VDD)
· Output High Source Current (IOH): -0.51mA to -6.8mA (depending on VDD)
· Output Low Voltage (VOL): 0 to 0.05V (depending on VDD)
· Output High Voltage (VOH): 5V to 15V (depending on VDD)