PIC16C924-08/SP Microchip Technology, PIC16C924-08/SP Datasheet - Page 101
![no-image](/images/manufacturer_photos/0/4/439/microchip_technology_sml.jpg)
PIC16C924-08/SP
Manufacturer Part Number
PIC16C924-08/SP
Description
IC MCU 64 LD 8MHZ 4K OTP 64-SDIP
Manufacturer
Microchip Technology
Series
PIC® 16Cr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F818-ISO.pdf
(6 pages)
3.PIC16C923-04L.pdf
(189 pages)
4.PIC16LC924-04L.pdf
(10 pages)
Specifications of PIC16C924-08/SP
Core Processor
PIC
Core Size
8-Bit
Speed
8MHz
Connectivity
I²C, SPI
Peripherals
LCD, POR, PWM, WDT
Number Of I /o
25
Program Memory Size
7KB (4K x 14)
Program Memory Type
OTP
Ram Size
176 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 6 V
Data Converters
A/D 5x8b
Oscillator Type
External
Operating Temperature
0°C ~ 70°C
Package / Case
64-SDIP (0.750", 19.05mm)
For Use With
AC164025 - MODULE SKT PROMATEII 64DIPDVA16XP640 - ADAPTER DEVICE FOR MPLAB-ICE
Lead Free Status / RoHS Status
Request inventory verification / Request inventory verification
Eeprom Size
-
- PIC16F616T-ISL PDF datasheet
- PIC16F818-ISO PDF datasheet #2
- PIC16C923-04L PDF datasheet #3
- PIC16LC924-04L PDF datasheet #4
- Current page: 101 of 189
- Download datasheet (2Mb)
13.5
There are two methods for LCD voltage generation,
internal charge pump, or external resistor ladder.
13.5.1
The LCD charge pump is shown in Figure 13-13. The
1.0V - 2.3V regulator will establish a stable base volt-
age from the varying battery voltage. This regulator is
adjustable through the range by connecting a variable
external resistor from VLCDADJ to ground. The poten-
tiometer provides contrast adjustment for the LCD. This
base voltage is connected to V
pump. The charge pump boosts V
FIGURE 13-13:CHARGE PUMP AND RESISTOR LADDER
1997 Microchip Technology Inc.
V
DD
VLCDADJ
100k*
130k*
Voltage Generation
CHARGE PUMP
* These values are provided for design guidance only and should be
nominal
10 A
optimized to the application by the designer.
V
V
DD
DD
V
0.47 F*
LCD
LCD
10k*
3
LCD
1 on the charge
1 into V
V
0.47 F*
LCD
LCD
10k*
10k*
2
2 =
Charge Pump
V
0.47 F*
LCD
2*V
is not operating, Vlcd3 will be internally tied to V
the Electrical Specifications section for charge pump
capacitor and potentiometer values.
13.5.2
The LCD module can also use an external resistor lad-
der (R-Ladder) to generate the LCD voltages.
Figure 13-13 shows external connections for static and
1/3 bias. The VGEN (LCDCON<4>) bit must be cleared
to use an external R-Ladder.
1
LCD
10k*
1 and V
EXTERNAL R-LADDER
LCD
3 = 3 * V
0.47 F*
C1
PIC16C9XX
5k*
5k*
LCD
C2
1. When the charge pump
DS30444E - page 101
Connections for
internal charge
pump, VGEN = 1
Connections for
external R-ladder,
1/3 Bias,
VGEN = 0
Connections for
external R-ladder,
Static Bias,
VGEN = 0
SLPEN
LCDEN
DD
. See
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