PIC16LC774/PQ Microchip Technology, PIC16LC774/PQ Datasheet - Page 128

• Manufacturer Part Number: PIC16LC774/PQ
• Description: IC MCU OTP 4KX14 A/D PWM 44-MQFP
• Manufacturer: Microchip Technology
• Series: PIC® 16Cr

Specifications of PIC16LC774/PQ

• 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: 7KB (4K x 14)
• Program Memory Type: OTP
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.5 V ~ 5.5 V
• Data Converters: A/D 10x12b
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 44-MQFP, 44-PQFP
• Processor Series: PIC16LC
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: I2C, SPI, SSP, UART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 33
• Number Of Timers: 3 bit
• Operating Supply Voltage: 2.5 V to 5.5 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: ICE2000, DM163022
• Minimum Operating Temperature: 0 C
• On-chip Adc: 10 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

PIC16C77X
FIGURE 12-1: CONFIGURATION WORD
12.2
12.2.1
The PIC16C77X can be operated in four different oscil-
lator modes. The user can program two configuration
bits (FOSC1 and FOSC0) to select one of these four
modes:
• LP
• XT
• HS
• RC
DS30275A-page 128
bit13
bit 13-12: CP1:CP0: Code Protection bits
bit 9-8:
bit 5-4:
bit 11-10: BORV1:BORV0: Brown-out Reset Voltage bits
bit 7:
bit 6:
bit 3:
bit 2:
bit 1-0:
Note 1: Enabling Brown-out Reset automatically enables the Power-up Timer (PWRT) regardless of the value of bit PWRTE.
CP1
2: All of the CP1:CP0 pairs have to be given the same value to enable the code protection scheme listed.
3: These are the minimum trip points for the BOR, see Table 15-4 for the trip point tolerances. Selection of an unused
CP0 BORV1 BORV0 CP1
12
Oscillator Configurations
OSCILLATOR TYPES
11 = Program memory code protection off
10 = 0800h-0FFFh code protected
01 = 0400h-0FFFh code protected
00 = 0000h-0FFFh code protected
11 = V
10 = V
01 = V
00 = V
Unimplemented, Read as ’1’
BODEN: Brown-out Reset Enable bit
1 = Brown-out Reset enabled
0 = Brown-out Reset disabled
PWRTE: Power-up Timer Enable bit
1 = PWRT disabled
0 = PWRT enabled
WDTE: Watchdog Timer Enable bit
1 = WDT enabled
0 = WDT disabled
FOSC1:FOSC0: Oscillator Selection bits
11 = RC oscillator
10 = HS oscillator
01 = XT oscillator
00 = LP oscillator
Ensure the Power-up Timer is enabled anytime Brown-out Reset is enabled.
setting may result in an inadvertant interrupt.
Low Power Crystal
Crystal/Resonator
High Speed Crystal/Resonator
Resistor/Capacitor
11
BOR
BOR
BOR
BOR
set to 2.5V
set to 2.7V
set to 4.2V
set to 4.5V
10
9
CP0
8
7
-
(2)
(1)
(1)
BODEN CP1
Advance Information
6
(3)
5
CP0 PWRTE
4
12.2.2
In XT, LP or HS modes, a crystal or ceramic resonator
is connected to the OSC1/CLKIN and OSC2/CLKOUT
pins to
PIC16C77X oscillator design requires the use of a par-
allel cut crystal. Use of a series cut crystal may give a
frequency out of the crystal manufacturers specifica-
tions.
A difference from the other mid-range devices may be
noted in that the device can be driven from an external
clock only when configured in HS mode
3
WDTE
CRYSTAL OSCILLATOR/CERAMIC
RESONATORS
2
establish
FOSC1
1
oscillation
FOSC0
1999 Microchip Technology Inc.
bit0
Register:
Address
(Figure
(Figure
CONFIG
12-2).
2007h
12-3).
The