Document
Ordering number : ENN5066B
CMOS IC
LC75854E, 75854W
1/4 Duty LCD Display Drivers with Key Input Function
Overview
The LC75854E and LC75854W are 1/4 duty LCD display drivers that can directly drive up to 164 segments and can control up to four general-purpose output ports. These products also incorporate a key scan circuit that accepts input from up to 30 keys to reduce printed circuit board wiring.
Features
• Key input function for up to 30 keys (A key scan is performed only when a key is pressed.)
• 1/4 duty - 1/2 bias and 1/4 duty - 1/3 bias drive schemes can be controlled from serial data (up to 164 segments).
• Sleep mode and all segments off functions that are controlled from serial data
• Segment output port/general-purpose output port function switching that is controlled from serial data
• Serial data I/O supports CCB format communication with the system controller.
• Direct display of display data without the use of a decoder provides high generality.
• Provision of an on-chip voltage-detection type reset circuit prevents incorrect displays.
• RC oscillator circuit
Package Dimensions
unit: mm
3159-QFP64E
1.0 48
49
[LC75854E]
17.2
14.0
1.6
0.8
0.35
1.0
33
32
0.15
17.2 14.0 1.6 1.0 0.8 1.0 3.0max
64 1
17 16
0.1 2.7
unit: mm 3190-SQFP64
15.6
0.8
SANYO: QFP64E
1.25
48 49
[LC75854W]
12.0 10.0
0.5 0.18
1.25
33
32
0.15
12.0 10.0 0.5 1.25
64 1
17 16
0.1 1.7max
1.25
• CCB is a trademark of SANYO ELECTRIC CO., LTD.
• CCB is SANYO’s original bus format and all the bus addresses are controlled by SANYO.
0.5 0.5
SANYO: SQFP64
Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft’s control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO representative nearest you before using any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all SANYO products described or contained herein.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
O3099TH (OT)/N3095HA (OT)/52295TH (OT) No. 5066-1/25
LC75854E, 75854W
Specifications
Absolute Maximum Ratings at Ta = 25°C, VSS = 0 V
Parameter Maximum supply voltage Input voltage
Output voltage
Output current
Allowable power dissipation Operating temperature Storage temperature
Symbol
VDD max VIN1 VIN2 VOUT1 VOUT2 IOUT1 IOUT2 IOUT3 IOUT4
Pd max
Topr
Tstg
Conditions VDD CE, CL, DI OSC, KI1 to KI5, TEST, VDD1, VDD2 DO OSC, S1 to S41, COM1 to COM4, KS1 to KS6, P1 to P4 S1 to S41 COM1 to COM4 KS1 to KS6 P1 to P4 Ta = 85°C
Ratings –0.3 to +7.0 –0.3 to +7.0 –0.3 to VDD + 0.3 –0.3 to +7.0 –0.3 to VDD + 0.3
300 3 1 5
200 –40 to +85 –55 to +125
Allowable Operating Ranges at Ta = –40 to +85°C, VSS = 0 V
Parameter
Supply voltage
Input voltage
Input high level voltage
Input low level voltage Recommended external resistance Recommended external capacitance Guaranteed oscillation range Data setup time Data hold time CE wait time CE setup time CE hold time High level clock pulse width Low level clock pulse width Rise time Fall time DO output delay time DO rise time
Symbol
Conditions
VDD VDD1 VDD2 VIH1 VIH2
VIL
ROSC
VDD VDD1 VDD2 CE, CL, DI KI1 to KI5 CE, CL, DI, KI1 to KI5
OSC
COSC
fOSC tds tdh tcp tcs tch tøH tøL tr tf tdc tdr
OSC
OSC CL, DI: Figure 2 CL, DI: Figure 2 CE, CL: Figure 2 CE, CL: Figure 2 CE, CL: Figure 2 CL: Figure 2 CL: Figure 2 CE, CL, DI: Figure 2 CE, CL, DI: Figure 2 DO, RPU = 4.7 kΩ, CL = 10 pF*1: Figure 2 DO, RPU = 4.7 kΩ, CL = 10 pF*1: Figure 2
min 4.5
0.8 VDD 0.6 VDD
0
Ratings typ
2/3 VDD 1/3 VDD
62
max 6.0
VDD VDD
6.0
VDD 0.2 VDD
680
25 50 100 160 160 160 160 160 160 160
160 160
1.5 1.5
Note: *1. Since DO is an open-drain output, these values depend on the resistance of the pull-up resistor RPU and the load capacitance CL.
Unit V V V V V µA mA mA mA
mW °C °C
Unit
V V V V V V
kΩ
pF
kHz ns ns ns ns ns ns ns ns ns µs µs
No. 5066-2/25
LC75854E, 75854W
Electrical Characteristics for the Allowable Operating Ranges
Parameter Hysteresis Power-down detection voltage Input high level current Input low level current Input floating voltage Pull-down resistance Output off leakage current Output high level voltage
Output low level voltage
Output middle level voltage*2
Oscillator frequency Current drain
Symbol
Conditions
VH VDET
IIH IIL VIF RPD IOFFH VOH1 VOH2 VOH3 VOH4 VOL1 VOL2 VOL3 VOL4 VOL5
VMID1
CE, CL, DI
CE, CL, DI: VI = 6.0 V CE, CL, DI: VI = 0 V KI1 to KI5 KI1 to KI5: VDD = 5.0 V DO: VO = 6.0 V KS1 to KS6: IO = –500 µA P1 to P4.