Datasheet

 1997 Microchip Technology Inc. DS30444E - page 145
PIC16C9XX
FIGURE 17-1: LCD VOLTAGE WAVEFORM
TABLE 17-2: LCD MODULE ELECTRICAL SPECIFICATIONS
TABLE 17-3: V
LCD CHARGE PUMP ELECTRICAL SPECIFICATIONS
Parameter
No.
Sym Characteristic Min Typ† Max Units Conditions
D200 VLCD3 LCD Voltage on pin
VLCD3
VDD - 0.3 — Vss + 7.0 V
D201 VLCD2 LCD Voltage on pin
VLCD2
— — VLCD3 V
D202 VLCD1 LCD Voltage on pin
VLCD1
— — VDD V
D220* VOH Output High
Voltage
Max VLCDN -
0.1
— Max VLCDN V COM outputs IOH = 25 µA
SEG outputs IOH = 3 µA
D221* VOL Output Low Voltage Min VLCDN — Min VLCDN +
0.1
V COM outputs IOL = 25 µA
SEG outputs IOL = 3 µA
D222* FLCDRC LCDRC Oscillator Fre-
quency
5 15 50 kHz VDD = 5V, -40˚C to +85˚C
D223* TrLCD Output Rise Time — — 200 µs COM outputs Cload = 5,000 pF
SEG outputs Cload = 500 pF
VDD = 5.0V, T = 25°C
D224* TfLCD Output Fall Time (1) — — 200 µs COM outputs Cload = 5,000 pF
SEG outputs Cload = 500 pF
VDD = 5.0V, T = 25°C
* These parameters are characterized but not tested.
† Data in “Typ” column is at 5V, 25°C unless otherwise stated. These parameters are for design guidance only and are not
tested.
(1) 0 ohm source impedance at VLCD.
Parameter
No.
Symbol Characteristic Min Typ Max Units Conditions
D250* I
VADJ VLCDADJ regulated current output — 10 — µA
D252* ∆ IVADJ/∆ VDD VLCDADJ current VDD Rejection — — 0.1/1 µA/V
D265* VVADJ VLCDADJ voltage limits PIC16C92X 1.0 — 2.3 V
PIC16LC92X 1.0 VDD -
0.7V
V VDD < 3V
* These parameters are characterized but not tested.
Note 1: For design guidance only.
VLCD3
V
LCD2
V
LCD1
V
SS
D223
D224