Part Number : 74HC74
Function : Dual D-type Flip-flop with set and reset; positive edge-trigger
Package : DIP, SOIC, TSSOP 14 Pin type
Maker : NXP Semiconductors.
Pinouts : 
Description :
The 74HC74 is identical in pinout to the LS74. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LSTTL outputs.
This device consists of two D flip−flops with individual Set, Reset, and Clock inputs. Information at a D−input is transferred to the corresponding Q output on the next positive going edge of the clock input. Both Q and Q outputs are available from each flip−flop. The Set and Reset inputs are asynchronous.
Features
• Output Drive Capability: 10 LSTTL Loads
• Outputs Directly Interface to CMOS, NMOS, and TTL
• Operating Voltage Range: 2.0 to 6.0 V
Datasheet PDF Download : 
Others datasheet of same file :
7474, 74HC74BQ, 74HC74CU, 74HC74D