PIC16F77-I/P Microchip Technology, PIC16F77-I/P Datasheet - Page 464
PIC16F77-I/P
Manufacturer Part Number
PIC16F77-I/P
Description
IC MCU FLASH 8KX14 A/D 40DIP
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F688T-ISL.pdf
(688 pages)
3.PIC16F818-ISO.pdf
(6 pages)
4.PIC16F73-ISP.pdf
(174 pages)
5.PIC16F73-ISP.pdf
(14 pages)
6.PIC16F73-ISP.pdf
(12 pages)
Specifications of PIC16F77-I/P
Program Memory Type
FLASH
Program Memory Size
14KB (8K x 14)
Package / Case
40-DIP (0.600", 15.24mm)
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
33
Ram Size
368 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 8x8b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Processor Series
PIC16F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
368 B
Interface Type
I2C/SPI/USART
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
33
Number Of Timers
3
Operating Supply Voltage
2 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
3rd Party Development Tools
52715-96, 52716-328, 52717-734
Development Tools By Supplier
ICE2000, DM163022
Minimum Operating Temperature
- 40 C
On-chip Adc
8-ch x 8-bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
444-1001 - DEMO BOARD FOR PICMICRO MCU
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
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Manufacturer
Quantity
Price
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Part Number:
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AVX
Quantity:
84 000
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Part Number:
PIC16F77-I/P
Manufacturer:
MICROCHI
Quantity:
2 000
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Quantity:
20 000
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PIC16F77-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
Part Number:
PIC16F77-I/PT
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
- PIC16F616T-ISL PDF datasheet
- PIC16F688T-ISL PDF datasheet #2
- PIC16F818-ISO PDF datasheet #3
- PIC16F73-ISP PDF datasheet #4
- PIC16F73-ISP PDF datasheet #5
- PIC16F73-ISP PDF datasheet #6
- Current page: 464 of 688
- Download datasheet (3Mb)
PICmicro MID-RANGE MCU FAMILY
25.3
25.3.1
DS31025A-page 25-6
crystal oscillator
Nominal F
TMR1 32 kHz
Internal RC oscillator
F
OSC
Timing Clock Source Selection
LCD Timing
RC
= 14 kHz
256
The LCD module has 3 possible clock source inputs and supports static, 1/2, 1/3, and 1/4 multi-
plexing.
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.
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 processor is in sleep. It is assumed
that the frequency provided 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 register is used to set the LCD frame clock rate.
The clock sources are selected with bits CS1:CS0 (LCDCON<3:2>). Refer to
details of the register programming.
Figure 25-2:
CS1:CS0
LCD Clock Generation
2
4
LMUX1:LMUX0
Static
1/2
1/3
1/4
used for device low frequency or sleep operation
used for device low frequency or sleep operation
4-bit Programmable
LCDPS<3:0>
Prescaler
data bus
internal
32
1997 Microchip Technology Inc.
LMUX1:LMUX0
Ring Counter
1,2,3,4
Figure 25-1
for
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