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LC75844M PDF даташит

Спецификация LC75844M изготовлена ​​​​«ON Semiconductor» и имеет функцию, называемую «1/4-Duty General-Purpose LCD Display Driver».

Детали детали

Номер произв LC75844M
Описание 1/4-Duty General-Purpose LCD Display Driver
Производители ON Semiconductor
логотип ON Semiconductor логотип 

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LC75844M Даташит, Описание, Даташиты
Ordering number : EN6235A
LC75844M
CMOS IC
1/4-Duty General-Purpose
LCD Display Driver
http://onsemi.com
Overview
The LC75844M is a 1/4 duty general-purpose LCD driver that can be used for frequency display in electronic tuners
under the control of a microcontroller. The LC75844M can drive an LCD with up to 88 segments directly. The
LC75844M can also control up to 4 general-purpose output ports. Since the LC75844M uses separate power supply
systems for the LCD drive block and the logic block, the LCD driver block power-supply voltage can be set to any
voltage in the range 2.7 to 6.0 volts, regardless of the logic block power-supply voltage.
Application
Car, Home frequency display
Features
Support for 1/4 duty 1/2 bias or 1/4 duty 1/3 bias drive of up to 88 segments under serial data control.
Serial data input supports CCB format communication with the system controller.
Serial data control of the power-saving mode based backup function and all the segments forced off function
Serial data control of switching between the segment output port and the general-purpose output port functions
High generality, since display data is displayed directly without decoder intervention.
Independent VLCD for the LCD driver block (VLCD can be set to any voltage in the range 2.7 to 6.0 volts,
regardless of the logic block power-supply voltage.)
The INH pin can force the display to the off state.
RC oscillator circuit
CCB is ON Semiconductor® ’s original format. All addresses are managed
by ON Semiconductor® for this format.
CCB is a registered trademark of Semiconductor Components Industries, LLC.
Semiconductor Components Industries, LLC, 2013
July, 2013
80608HKIM B8-8317 / 92299TH(OT) No.6235-1/15









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LC75844M Даташит, Описание, Даташиты
LC75844M
Specifications
Absolute Maximum Ratings at Ta = 25°C, VSS = 0V
Parameter
Maximum supply voltage
Input voltage
Output voltage
Output current
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VDD max
VLCD max
VIN1
VIN2
VIN3
VOUT1
VOUT2
IOUT1
IOUT2
IOUT3
Pd max
Topr
Tstg
Conditions
VDD
VLCD
CE, CL, DI, INH
OSC
VLCD1, VLCD2
OSC
S1 to S22, COM1 to COM4, P1 to P4
S1 to S22
COM1 to COM4
P1 to P4
Ta = 85°C
Ratings
-0.3 to +7.0
-0.3 to +7.0
-0.3 to +7.0
-0.3 to VDD+0.3
-0.3 to VLCD+0.3
-0.3 to VDD+0.3
-0.3 to VLCD+0.3
300
3
5
100
-40 to +85
-55 to +125
Unit
V
V
V
μA
mA
mW
°C
°C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating
Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.
Allowable Operating Ranges at Ta = -40 to +85°C, VSS = 0V
Parameter
Supply voltage
Input voltage
Input high-level voltage
Input low-level voltage
Recommended external resistor
Recommended external capacitor
Oscillation guaranteed 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
INH switching time
Symbol
VDD
VLCD
VLCD1
VLCD2
VIH
VIL
Rosc
Cosc
fosc
tds
tdh
tcp
tcs
tch
tφH
tφL
tr
tf
tc
Conditions
VDD
VLCD
VLCD1
VLCD2
CE, CL, DI, INH
CE, CL, DI, INH
OSC
OSC
OSC
CL, DI
CL, DI
CE, CL
CE, CL
CE, CL
CL
CL
CE, CL, DI
CE, CL, DI
INH, CE
[Figure 2]
[Figure 2]
[Figure 2]
[Figure 2]
[Figure 2]
[Figure 2]
[Figure 2]
[Figure 2]
[Figure 2]
[Figure 3]
min
2.7
2.7
0.8VDD
0
25
160
160
160
160
160
160
160
10
Ratings
typ
2/3VLCD
1/3VLCD
43
680
50
160
160
max
6.0
6.0
VLCD
VLCD
6.0
0.2VDD
100
Unit
V
V
V
V
kΩ
pF
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
μs
No.6235-2/15









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LC75844M Даташит, Описание, Даташиты
LC75844M
Electrical Characteristics at Allowable Operating Ranges
Parameter
Symbol
Pin
Conditions
Ratings
min typ max
Hysteresis width
Input high-level current
Input low-level current
Output high-level voltage
Output low-level voltage
VH
IIH
IIL
VOH1
VOH2
VOH3
VOL1
CE, CL, DI, INH
CE, CL, DI, INH
CE, CL, DI, INH
S1 to S22
COM1 to COM4
P1 to P4
S1 to S22
VI = 6.0V
VI = 0V
IO = -20μA
IO = -100μA
IO = -1mA
IO = 20μA
-5.0
VLCD-0.9
VLCD-0.9
VLCD-0.9
0.1VDD
5.0
0.9
VOL2
COM1 to COM4 IO = 100μA
0.9
Output middle-level
voltage *1
VOL3
VMID1
P1 to P4
COM1 to COM4
IO = 1mA
1/2 bias, IO = ±100μA
1/2VLCD
-0.9
0.9
1/2VLCD
+0.9
VMID2 S1 to S22
1/3 bias, IO = ±20μA
2/3VLCD
-0.9
2/3VLCD
+0.9
VMID3 S1 to S22
1/3 bias, IO = ±20μA
1/3VLCD
-0.9
1/3VLCD
+0.9
VMID4 COM1 to COM4 1/3 bias, IO = ±100μA
2/3VLCD
-0.9
2/3VLCD
+0.9
VMID5 COM1 to COM4 1/3 bias, IO = ±100μA
1/3VLCD
-0.9
1/3VLCD
+0.9
Oscillator frequency
fOSC
OSC
Rosc = 43kΩ
Cosc = 680pF
40 50 60
Supply current
IDD1
VDD
Power saving mode
5
IDD2
VDD
VDD = 6.0V, output open,
fosc = 50kHz
230 460
ILCD1 VLCD
Power saving mode
5
ILCD2 VLCD
VLCD = 6.0V, output open,
1/2 bias, fosc = 50kHz
100 200
ILCD3 VLCD
VLCD = 6.0V, output open,
1/3 bias, fosc = 50kHz
60 120
Note: *1 Excluding the bias voltage generation divider resistors built into VLCD1, VLCD2. (See Figure 1.)
Unit
V
μA
μA
V
V
V
kHz
μA
VLCD
VLCD1
VLCD2
To the common segment driver
Except these resistors
VSS
Figure 1
No.6235-3/15










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