TM74HC245

8bitCMOS Data Buffer TM74HC245 Characterization TM74HC245 is a 3-state Output Octal Bus Transceiver, mainly used in large-screen display, as well as in other consumer electronics products to enhance drive. This product is excellent in performance and reliable in quality. Features      CMOS Technology Wide voltage range: 3.0V-5.5V Noninverting 3-state gate output 8-bit bidirectional transceiver Package type: SOP20, SSOP20, TSSOP20 Block diagram of internal structure Fig. 1 1 www.titanmec.com ©Titan Micro Electronics V1.2 8bitCMOS Data Buffer TM74HC245 Pin arrangement DIR A0 A1 A2 A3 A4 A5 A6 A7 GND 1 20 2 19 3 18 4 17 5 Top View 16 6 15 7 14 8 13 9 12 10 11 VCC OE B0 B1 B2 B3 B4 B5 B6 B7 Fig. 2 Pin Function Pin Name Pin No. I/O Function Description A0—A7 2—9 — Data input and output B0—B7 18—11 — Data input and output OE 19 I DIR 1 O GND 20 Output Enable Direction control DIR=1:A B DIR=0:B A Logic GND VDD 10 Logic Power Here are the ESD logo and descriptions provided as a reminder for electrostatic protection: An integrated circuit is a static sensitive device. Since a considerable amount of static electricity is likely to be generated in a dry season or a dry environment and electrostatic discharge will damage integrated circuits, it is the advice of Titan that preventive measures should be taken for all appropriate ICs are. Improper operation and welding may cause ESD damage or performance degradation, and put the chip out of service. Truth table Output Enable OE Output Control DIR L L H L H H Operating state Bn input, An output An input, Bn output High-impedance state 2 www.titanmec.com ©Titan Micro Electronics V1.2 8bitCMOS Data Buffer TM74HC245 Limit parameter Tested at 25℃, unless otherwise stated TM74HC245 Parameter Name Parameter Symbol Limit Logic Supply Voltage Logic input voltage Output drive current Output Sink Current Power loss Operating temperature Storage temperature VDD VI1 IOH IOL PD Topt Tstg -0.5~+7.0 -0.5~VDD+0.5 -95 105