CY8C52 CYPRESS [Cypress Semiconductor], CY8C52 Datasheet - Page 65

• Manufacturer Part Number: CY8C52
• Description: Programmable System-on-Chip (PSoC)
• Manufacturer: CYPRESS [Cypress Semiconductor]

11.5.5 LCD Direct Drive
Table 11-22. LCD Direct Drive DC Specifications
Table 11-23. LCD Direct Drive AC Specifications
Document Number: 001-55034 Rev. *A
Icc
V
Icc
Icc
Icc
Icc
Icc
Icc
f
Notes
LCD
13. Additional conditions: All segments on; 2000 pF glass capacitance; Type A waveform; 32 Hz LCD refresh rate; Operating temperature = 25°C; Boost converter not
14. Connecting an actual LCD display increases the current consumption based on the size of the LCD glass.
Parameter
Parameter
bias
LCD
LCD
LCD
LCD
LCD
LCD
used.
LCD operating current
LCD bias range
LCD bias step size
Iout per segment driver
Icc per segment driver
Static (1 common)
LCD system operating current
LCD system operating current
1/4 duty (4 commons)
LCD system operating current
LCD system operating current
1/16 duty (16 commons)
LCD system operating current
LCD system operating current
LCD frame rate
LCD capacitance per
segment/common driver
Long term segment offset
Strong drive
Weak drive
Weak drive 2
Strong drive
Weak drive
Weak drive 2
No drive
Description
Description
PRELIMINARY
32x4 segment display at 30 Hz.
Segment capacitance is < 500 pF
Vdda must be 3V or higher
Drivers may be combined.
Vbias = 5V
Number of LCD pins: 33 (32x1)
Number of segments: 32
Vbias = 3V
Number of LCD pins: 33 (32x1)
Number of segments: 32
Vbias = 5V
Number of LCD pins: 36 (32x4)
Number of segments: 128
Vbias = 3V
Number of LCD pins: 36 (32x4)
Number of segments: 128
Vbias = 5V
Number of LCD pins: 48 (32x16)
Number of segments: 512
Vbias = 3V
Number of LCD pins: 48 (32x16)
Number of segments: 512
Conditions
Conditions
PSoC
[13]
[13]
[13]
[13]
[13]
[13]
®
5: CY8C52 Family Data Sheet
[14]
.
2.048
Min
Min
120
220
10
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
25.8
Typ
500
160
260
<25
0.5
15
11
22
12
10
24
21
93
83
Typ
1
50
-
-
5.325
5000
Max
200
300
10
Max
-
-
-
-
-
-
-
-
-
-
-
-
-
150
Page 65 of 85
Units
Units
mV
mV
μ A
pF
µA
µA
µA
µA
µA
µA
nA
µA
µA
µA
µA
µA
µA
V
Hz
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