PIC16C924-08/SP Microchip Technology, PIC16C924-08/SP Datasheet - Page 95
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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: 95 of 189
- Download datasheet (2Mb)
13.1
The LCD module has 3 possible clock source inputs
and supports static, 1/2, 1/3, and 1/4 multiplexing.
13.1.1
The clock sources for the LCD timing generation are:
• Internal RC oscillator
• Timer1 oscillator
• System clock divided by 256
The first timing source is an internal RC oscillator which
runs at a nominal frequency of 14 kHz. This oscillator
provides a lower speed clock which may be used to
continue running the LCD while the processor is in
sleep. The RC oscillator will power-down when it is not
selected or when the LCD module is disabled.
FIGURE 13-8: LCD CLOCK GENERATION
1997 Microchip Technology Inc.
crystal oscillator
Nominal F
TMR1 32 kHz
Internal RC oscillator
F
OSC
LCD Timing
TIMING CLOCK SOURCE SELECTION
RC
= 14 kHz
256
CS1:CS0
4
2
LMUX1:LMUX0
Static
1/2
1/3
1/4
The second source is the Timer1 external oscillator.
This oscillator provides a lower speed clock which may
be used to continue running the LCD while the proces-
sor is in sleep. It is assumed that the frequency pro-
vided on this oscillator will be 32 kHz. To use the
Timer1 oscillator as a LCD module clock source, it is
only necessary to set the T1OSCEN (T1CON<3>) bit.
The third source is the system clock divided by 256.
This divider ratio is chosen to provide about 32 kHz
output when the external oscillator is 8 MHz. The
divider is not programmable. Instead the LCDPS regis-
ter is used to set the LCD frame clock rate.
All of the clock sources are selected with bits CS1:CS0
(LCDCON<3:2>). Refer to Figure 13-1 for details of the
register programming.
4-bit Programmable
LCDPS<3:0>
Prescaler
data bus
internal
PIC16C9XX
32
LMUX1:LMUX0
Ring Counter
DS30444E - page 95
1,2,3,4
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