Z51F3220FNX Datasheet, PDF (35/312 Pages) Zilog, Inc. – Z8051 Series 8-Bit Microcontrollers

Z51F3220
Product Specification
7.8 LCD Voltage Characteristics
Table 7-8 LCD Voltage Characteristics
Parameter Symbol
Conditions
(TA= -40°C ~ +85°C, VDD= 2.0V ~ 5.5V, VSS= 0V)
MIN
TYP
MAX
Unit
LCD contrast disabled, 1/4 bias
Typx0.95
VDD
Typx1.05 V
LCDCCR=00H
VDDx16/31
LCDCCR=01H
VDDx16/30
LCDCCR=02H
VDDx16/29
LCDCCR=03H
VDDx16/28
LCDCCR=04H
VDDx16/27
LCDCCR=05H
VDDx16/26
LCD Voltage
LCDCCR=06H
VDDx16/25
LCD contrast
VLC0 _enabled,
1/4 bias,
LCDCCR=07H
LCDCCR=08H
Typx0.9
VDDx16/24
VDDx16/23
Typx1.1
V
No panel load _LCDCCR=09H
VDDx16/22
LCDCCR=0AH
VDDx16/21
LCDCCR=0BH
VDDx16/20
LCDCCR=0CH
VDDx16/19
LCDCCR=0DH
VDDx16/18
LCDCCR=0EH
VDDx16/17
LCDCCR=0FH
VDDx16/16
LCD Mid Bias
Voltage(note)
VLC1 _{VDD=2.7V to 5.5V,}
VLC2 LCD clock = 0Hz,
VLC3 ^{1/4 bias, No panel load}
Typx0.9
Typx0.9
Typx0.9
3/4xVLC0
2/4xVLC0
1/4xVLC0
Typx1.1
Typx1.1 _V
Typx1.1
LCD Driver
Output
Impedance
LCD Bias
Dividing
Resistor
RLO VLCD=3V, ILOAD=±10uA
RLCD TA = 25^C
–
5
10
kΩ
40
60
80
NOTE) It is middle output voltage when the VDD and the VLC0 node are connected.
PS029902-0212
PRELIMINARY
32