Product Summary

The PT6554LQ is a high performance Liquid Crystal Display (LCD) Driver IC utilizing CMOS technology specially designed with Key Input function. It can drive up to a maximum of 164 segments and control up to 4 general purpose output ports. It includes a Key Scan Circuit that can support up to 30 key inputs and provides On-Chip Voltage Detection Type Reset Circuit which prevents incorrect display. Display Data can be directly displayed without using any decoder. The PT6554LQ also supports both 1/4 duty-1/2 bias and 1/4 duty-1/3 bias drive techniques. Pin assignments and application circuit are optimized for easy PCB Layout and cost saving advantages.

Parametrics

Absolute maximum ratings: (1)Maximum supply voltage, VDDmax at VDD: -0.3 to +7.0 V; (2)Input voltage: VIN1 at CE, CLK, DI: -0.3 to +7.0 V; VIN2 at OSC, KI1 to KI5, TEST, VDD1, VDD2: -0.3 to VDD +0.3 V; (3)Output voltage: VOUT1at DO: -0.3 to +7.0 V; VOUT2 at OSC, SG1 to SG41, COM1 to COM4, P1 to P4: -0.3 to VDD +0.3 V; (4)Output current: IOUT2 at SG1 to SG41: 300 μA; IOUT3 at COM1 to COM4: 3 mA; IOUT4 at KS1 to KS6: 1 mA; IIN1at P1 to P4: 5 mA; (5)Allowable power dissipation, Pd max at Ta = 85℃: 200 mW; (6)Operating temperature, Topr: -40 to +85 ℃; (7)Storage temperature, Tstg: -65 to +150 ℃.

Features

Features: (1)CMOS technology; (2)Up to 164 segment drivers (4 Com x 41 Seg); (3)Up to 4 general purpose output ports; (4)Key input function; (5)1/4 duty-1/2 bias and 1/4 duty-1/3 bias drive techniques; (6)Sleep mode & all segment OFF function; (7)On-Chip voltage detection type reset circuit; (8)RC oscillation circuit; (9)Available in 64 pins, QFP or LQFP package.

Diagrams

PT6501
PT6501

Other


Data Sheet

Negotiable 
PT6501A
PT6501A

Texas Instruments

DC/DC Converters 3.3Vout 8A 5V-Inp Adj ISR

Data Sheet

0-8: $29.70
8-25: $26.52
25-100: $25.05
100-250: $24.14
PT6501B
PT6501B

Texas Instruments

DC/DC Converters 3.3Vout 8A 5V-Inp Adj ISR

Data Sheet

0-8: $30.11
8-25: $26.89
25-100: $25.40
100-250: $24.47
PT6501C
PT6501C

Texas Instruments

DC/DC Converters 3.3Vout 8A 5V-Inp Adj ISR

Data Sheet

Negotiable 
PT6501CT
PT6501CT


REGULATOR 3.3V 8A 14PIN SMD T/R

Data Sheet

Negotiable 
PT6501G
PT6501G

Texas Instruments

DC/DC Converters 3.3Vout 8A 5V-Inp Adj ISR

Data Sheet

0-8: $30.11
8-25: $26.89
25-100: $25.40
100-250: $24.47