74HC4094N

74HC4094 74HCT4094 8-stage shift-and-store bus register Rev. 6 31 December 2012 Product data sheet 1. General description The 74HC4094 74HCT4094 is an 8-bit serial-in/serial or parallel-out shift register with a storage register and 3-state outputs. Both the shift and storage register have separate clocks. The device features a serial input (D) and two serial outputs (QS1 and QS2) to enable cascading. Data is shifted on the LOW-to-HIGH transitions of the CP input. Data is available at QS1 on the LOW-to-HIGH transitions of the CP input to allow cascading when clock edges are fast. The same data is available at QS2 on the next HIGH-to-LOW transition of the CP input to allow cascading when clock edges are slow. The data in the shift register is transferred to the storage register when the STR input is HIGH. Data in the storage register appears at the outputs whenever the output enable input (OE) is HIGH. A LOW on OE causes the outputs to assume a high-impedance OFF-state. Operation of the OE input does not affect the state of the registers. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of V . CC 2. Features and benefits Complies with JEDEC standard JESD7A Input levels: For 74HC4094: CMOS level For 74HCT4094: TTL level Low-power dissipation ESD protection: HBM JESD22-A114F exceeds 2 000 V MM JESD22-A115-A exceeds 200 V Specified from 40 Cto+85 C and from 40 Cto+125 C 3. Applications Serial-to-parallel data conversion Remote control holding register74HC4094 74HCT4094 NXP Semiconductors 8-stage shift-and-store bus register 4. Ordering information Table 1. Ordering information Type number Package Temperature range Name Description Version 74HC4094N 40 C to +125 C DIP16 plastic dual in-line package 16 leads (300 mil) SOT38-4 74HCT4094N 74HC4094D 40 C to +125 C SO16 plastic small outline package 16 leads body width SOT109-1 3.9 mm 74HCT4094D 74HC4094DB 40 C to +125 C SSOP16 plastic shrink small outline package 16 leads SOT338-1 body width 5.3 mm 74HCT4094DB 74HC4094PW 40 C to +125 C TSSOP16 plastic thin shrink small outline package 16 leads SOT403-1 body width 4.4 mm 5. Functional diagram 31 1 C2 15 EN3 CP STR QS1 9 SRG8 3 QS2 10 C1/ QP0 4 24 1D 2D 3 QP1 5 5 6 QP2 6 2 D 7 QP3 7 14 QP4 14 13 QP5 13 12 QP6 12 11 9 QP7 11 OE 10 15 001aaf111 001aaf112 Fig 1. Functional diagram Fig 2. Logic symbol 74HC HCT4094 All information provided in this document is subject to legal disclaimers. NXP B.V. 2012. All rights reserved. Product data sheet Rev. 6 31 December 2012 2 of 23