MM745HC174 Hex D-Type Flip-Flops with Clear
January 2009
MM74HC174 Hex D-Type Flip-Flops with Clear
Features Description
The MM74HC174 edge-triggered flip-flops utilize
Typical Propagation Delay: 16ns
silicon-gate CMOS technology to implement D-type flip-
Wide Operating Voltage Range: 2V6V
flops. They possess high noise immunity, low-power,
and speeds comparable to low-power Schottky TTL
Low Input Current: 1A maximum
circuits. This device contains six master-slave flip-flops
Low Quiescent Current: 80A (74HC Series)
with a common clock and common clear. Data on the D
input with the specified setup and hold times is
Output Drive: 10 LSTTL Loads
transferred to the Q output on the LOW-to-HIGH
transition of the CLOCK input. When LOW, the input
sets all outputs to a LOW state.
Each output can drive ten low-power Schottky TTL
equivalent loads. The MM74HC174 is functionally and
pin comparable to the 74LS174. All inputs are protected
from damage due to static discharge by diodes to V
CC
and ground.
Ordering Information
Operating
Packing
Part Number Temperature Package
Eco Status
Method
Range
MM74HC174M -40 to +85C Tubes
16-Lead Small Outline Integrated Circuit
RoHS
Tape and
(SOIC), JEDEC MS-012, 0.150 Inch Narrow
MM74HC174MX -40 to +85C
Reel
MM74HC174MTC -40 to +85C Tubes
16-Lead Thin Shrink Small Outline Package
RoHS
Tape and
(TSSOP), JEDEC MO-153, 4.4mm Wide
MM74HC174MTCX -40 to +85C
Reel
16-Lead Plastic Dual-In-Line Package
MM74HC174N -40 to +85C
RoHS Tubes
(PDIP), JEDEC MS-001, 0.300 Inch Wide
For Fairchilds definition of green Eco Status, please visit: MM74HC174 Hex D-Type Flip-Flop with Clear
Pin Configuration
Figure 1. Pin Configuration (Top View)
Truth Table (Each Flip-Flop) Logic Diagram
Inputs Output
Clear Clock D Q
LOW Dont Care Dont Care LOW
(1)
HIGH HIGH HIGH
(1)
HIGH LOW LOW
(2)
HIGH LOW Dont Care Q
0
Notes:
1. Transition from LOW to HIGH level.
2. The level of Q before the indicated steady-state
input conditions were established.
Figure 2. Logic Diagram
1999 Fairchild Semiconductor Corporation www.fairchildsemi.com
MM74HC174 Rev. 1.1.0 2