PIC16F77-I/ML Microchip Technology, PIC16F77-I/ML Datasheet - Page 366

• Manufacturer Part Number: PIC16F77-I/ML
• Description: 44 PIN, 14KB STD FLASH, 368 RAM, 33 I/O,
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F77-I/ML

• Rohs Compliant: YES
• 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
• Program Memory Size: 14KB (8K x 14)
• Program Memory Type: FLASH
• 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
• Package / Case: 44-QFN
• 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 bit
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 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
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With: XLT44QFN2 - SOCKET TRAN ICE 44QFN/40DIPAC164322 - MODULE SOCKET MPLAB PM3 28/44QFN444-1001 - DEMO BOARD FOR PICMICRO MCU
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

PICmicro MID-RANGE MCU FAMILY
19.7
DS31019A-page 19-6
Connection Considerations
The Voltage Reference Module operates independently of the comparator module. The output of
the reference generator may be connected to the V
and the VROE bit (VRCON<6>) is set. Enabling the Voltage Reference output onto the V
with an input signal present will increase current consumption. Configuring the V
output with V
The V
drive capability, a buffer must be used in conjunction with the Voltage Reference output for exter-
nal connections to V
Figure 19-2:
REF
PIC16CXXX
V
Note 1: R is the Voltage Reference Output Impedance and is dependent upon the
REF
pin can be used as a simple D/A output with limited drive capability. Due to the limited
REF
Module
Voltage Reference Output Buffer Example
enabled will also increase current consumption.
Voltage Reference Configuration VRCON<3:0> and VRCON<5>.
R
REF
(1)
.
Figure 19-2
ANx
shows an example buffering technique.
•
REF
pin if the corresponding TRIS bit is set
+
–
1997 Microchip Technology Inc.
•
V
REF
Output
REF
as a digital
REF
pin