Hex D-type flip-flop with reset; positive-edge trigger
Rev. 4 — 12 May 2016
Product data sheet
1. General description
The 74HC174; 74HCT174 are hex positive edge-triggered D-type flip-flops with individual
data inputs (Dn) and outputs (Qn). The common clock (CP) and master reset (MR) inputs
load and reset all flip-flops simultaneously. The D-input that meets the set-up and hold
time requirements on the LOW-to-HIGH clock transition is stored in the flip-flop and
appears at the Q output. A LOW on MR causes the flip-flops and outputs to be reset LOW.
Inputs include clamp diodes. This enables the use of current limiting resistors to interface
inputs to voltages in excess of VCC.
2. Features and benefits
For 74HC174: CMOS level
For 74HCT174: TTL level
Six edge-triggered D-type flip-flops
Asynchronous master reset
Complies with JEDEC standard no. 7A
HBM JESD22-A114F exceeds 2000 V
MM JESD22-A115-A exceeds 200 V.
Multiple package options
Specified from 40 C to +85 C and 40 C to +125 C.
3. Ordering information
Table 1. Ordering information
Type number Package
Temperature range Name
74HC174D 40 C to +125 C SO16
plastic small outline package; 16 leads; body width 3.9 mm SOT109-1
74HC174DB 40 C to +125 C
SSOP16 plastic shrink small outline package; 16 leads; body width SOT338-1
74HC174PW 40 C to +125 C
TSSOP16 plastic thin shrink small outline package; 16 leads;
body width 4.4 mm