PIC16C770/P Microchip Technology, PIC16C770/P Datasheet - Page 103

• Manufacturer Part Number: PIC16C770/P
• Description: IC MCU CMOS A/D 2K 20MHZ 20-DIP
• Manufacturer: Microchip Technology
• Series: PIC® 16Cr

Specifications of PIC16C770/P

• Program Memory Type: OTP
• Program Memory Size: 3.5KB (2K x 14)
• Package / Case: 20-DIP (0.300", 7.62mm)
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 15
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 6x12b
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Processor Series: PIC16C
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: I2C/SPI/SSP
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 16
• Number Of Timers: 3
• Operating Supply Voltage: 2.5 V to 5.5 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: Through Hole
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: ICE2000
• Minimum Operating Temperature: 0 C
• On-chip Adc: 6-ch x 12-bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: DVA16XP200 - ADAPTER ICE 20DIP/SOIC/SSOPAC164028 - MODULE SKT PROMATEII 20SOIC/DIP
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

10.0
The Voltage Reference module provides reference
voltages for the Brown-out Reset circuitry, the Low-volt-
age Detect circuitry and the A/D converter.
REGISTER 10-1: LOW-VOLTAGE DETECT CONTROL REGISTER (LVDCON: 9Ch)
2002 Microchip Technology Inc.
VOLTAGE REFERENCE
MODULE AND LOW-VOLTAGE
DETECT
bit 7-6
bit 5
bit 4
bit 3-0
Unimplemented: Read as '0'
BGST: Bandgap Stable Status Flag bit
1 = Indicates that the bandgap voltage is stable, and LVD interrupt is reliable
0 = Indicates that the bandgap voltage is not stable, and LVD interrupt should not be enabled
LVDEN: Low-voltage Detect Power Enable bit
1 = Enables LVD, powers up bandgap circuit and reference generator
0 = Disables LVD, powers down bandgap circuit if unused by BOR or VRH/VRL
LV<3:0>: Low Voltage Detection Limit bits
1111 = External analog input is used
1110 = 4.5V
1101 = 4.2V
1100 = 4.0V
1011 = 3.8V
1010 = 3.6V
1001 = 3.5V
1000 = 3.3V
0111 = 3.0V
0110 = 2.8V
0101 = 2.7V
0100 = 2.5V
0011 = Reserved. Do not use.
0010 = Reserved. Do not use.
0001 = Reserved. Do not use.
0000 = Reserved. Do not use.
bit 7
Legend:
R = Readable bit
- n = Value at POR
Note:
U-0
—
These are the minimum trip points for the LVD. See Table 15-8 for the trip point tol-
erances. Selection of reserved setting may result in an inadvertent interrupt.
U-0
—
BGST
R-0
W = Writable bit
’1’ = Bit is set
LVDEN
R/W-0
The source for the reference voltages comes from the
bandgap reference circuit. The bandgap circuit is ener-
gized anytime the reference voltage is required by the
other sub-modules, and is powered down when not in
use. The control registers for this module are LVDCON
and REFCON, as shown in Register 10-1 and
Figure 10-2.
(1)
PIC16C717/770/771
R/W-0
U = Unimplemented bit, read as ‘0’
’0’ = Bit is cleared
LV3
R/W-1
LV2
x = Bit is unknown
R/W-0
LV1
DS41120B-page 101
R/W-1
LV0
bit 0