PIC16C781-I/P Microchip Technology, PIC16C781-I/P Datasheet - Page 27

• Manufacturer Part Number: PIC16C781-I/P
• Description: IC MCU OTP 1KX14 W/AD COMP 20DIP
• Manufacturer: Microchip Technology
• Series: PIC® 16Cr

Specifications of PIC16C781-I/P

• Core Size: 8-Bit
• Program Memory Size: 1.75KB (1K x 14)
• Core Processor: PIC
• Speed: 20MHz
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 13
• Program Memory Type: OTP
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 8x8b; D/A 1x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-DIP (0.300", 7.62mm)
• Controller Family/series: PIC16C
• No. Of I/o's: 16
• Ram Memory Size: 128Byte
• Cpu Speed: 20MHz
• No. Of Timers: 3
• Processor Series: PIC16C
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 128 B
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 16
• Number Of Timers: 2
• Operating Supply Voltage: 2.5 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 bit
• On-chip Dac: 8 bit, 1 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: ISPICR1 - ADAPTER IN-CIRCUIT PROGRAMMINGDVA16XP202 - ADAPTER DEVICE PIC16C781/782DM163012 - BOARD DEMO PICDEM FOR 16C781/782AC164028 - MODULE SKT PROMATEII 20SOIC/DIP
• Eeprom Size: -
• Connectivity: -
• Lead Free Status / Rohs Status: Details
• Other names: PIC16C781I/P

3.0
Most pins for the I/O ports are multiplexed with an alter-
nate function for the peripheral features on the device.
In general, when a peripheral is enabled, that pin may
not be used as a general purpose I/O pin.
Additional information on I/O ports may be found in the
PICmicro™ Mid-Range Reference Manual (DS33023)
3.1
The PIC16C781/782 has two I/O ports: PORTA and
PORTB. Some of these port pins are mixed signal (can
be digital or analog). When an analog signal is present
on a pin, the pin must be configured as an analog input
REGISTER 3-1:
2001 Microchip Technology Inc.
I/O PORTS
I/O Port Analog/Digital Mode
bit 7-0
bit 7
ANS<7:0>: Select Analog Input Function on AN<7:0> bits
1 = Analog input
0 = Digital I/O
Legend:
R = Readable bit
- n = Value at POR
ANALOG SELECT REGISTER (ANSEL: 9Dh)
Note:
R/W-1
ANS7
Setting a pin to an analog input disables the digital input buffer. The corresponding
TRIS bit should be set to input mode when using pins as analog inputs.
R/W-1
ANS6
R/W-1
ANS5
Preliminary
W = Writable bit
’1’ = Bit is set
R/W-1
ANS4
to prevent unnecessary current drawn from the power
supply. The Analog Select register (ANSEL) allows the
user to individually select the Digital/Analog mode on
these pins. When the Analog mode is active, the port
pin always reads as a logic 0.
Note 1: On a Power-on Reset, the ANSEL regis-
R/W-1
ANS3
U = Unimplemented bit, read as ‘0’
’0’ = Bit is cleared
2: If a pin is configured as Analog mode, the
ter configures these mixed signal pins as
Analog mode: RA<3:0>, RB<3:0>.
pin always reads '0', even if the digital out-
put is active.
PIC16C781/782
R/W-1
ANS2
x = Bit is unknown
R/W-1
ANS1
DS41171A-page 25
R/W-1
ANS0
bit 0