PIC16F690-E/P Microchip Technology, PIC16F690-E/P Datasheet - Page 85

• Manufacturer Part Number: PIC16F690-E/P
• Description: IC PIC MCU FLASH 4KX14 20DIP
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F690-E/P

• Program Memory Type: FLASH
• Program Memory Size: 7KB (4K x 14)
• Package / Case: 20-DIP (0.300", 7.62mm)
• 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: 18
• Eeprom Size: 256 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: I2C/SPI/SSP/EUSART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 17
• Number Of Timers: 3
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: Through Hole
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, DM163014, DM164120-1, DM163029
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 12-ch x 10-bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: PIC16F690DM-PCTLHS - BOARD DEMO PICTAIL HUMIDITY SNSRAC162061 - HEADER INTRFC MPLAB ICD2 20PINAC164039 - MODULE SKT PROMATE II 20DIP/SOICDM163029 - BOARD PICDEM FOR MECHATRONICSACICE0203 - MPLABICE 20P 300 MIL ADAPTER
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

REGISTER 5-1:
TABLE 5-1:
© 2008 Microchip Technology Inc.
INTCON
OPTION_REG RABPU INTEDG
TMR0
TRISA
Legend: – = Unimplemented locations, read as ‘0’, u = unchanged, x = unknown. Shaded cells are not used by the
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2-0
Note 1:
RABPU
R/W-1
Name
Timer0 module.
A dedicated 16-bit WDT postscaler is available. See Section 14.5 “Watchdog Timer (WDT)” for more
information.
RABPU: PORTA/PORTB Pull-up Enable bit
1 = Pull-ups on PORTA/PORTB are disabled
0 = Pull-ups on PORTA/PORTB are disabled by individual WPUAx control bits
INTEDG: Interrupt Edge Select bit
1 = Interrupt on rising edge of INT pin
0 = Interrupt on falling edge of INT pin
T0CS: TMR0 Clock Source Select bit
1 = Transition on T0CKI pin
0 = Internal instruction cycle clock (F
T0SE: TMR0 Source Edge Select bit
1 = Increment on high-to-low transition on T0CKI pin
0 = Increment on low-to-high transition on T0CKI pin
PSA: Prescaler Assignment bit
1 = Prescaler is assigned to the WDT
0 = Prescaler is assigned to the Timer0 module
PS<2:0>: Prescaler Rate Select bits
Timer0 Module Register
SUMMARY OF REGISTERS ASSOCIATED WITH TIMER0
Bit 7
INTEDG
GIE
R/W-1
—
OPTION_REG: OPTION REGISTER
BIT VALUE
PEIE
Bit 6
000
001
010
011
100
101
110
111
—
W = Writable bit
‘1’ = Bit is set
R/W-1
T0CS
PIC16F631/677/685/687/689/690
TRISA5 TRISA4 TRISA3 TRISA2 TRISA1 TRISA0 --11 1111 --11 1111
T0CS
Bit 5
TMR0 RATE
T0IE
1 : 2
1 : 4
1 : 8
1 : 16
1 : 32
1 : 64
1 : 128
1 : 256
T0SE
Bit 4
INTE
R/W-1
T0SE
WDT RATE
1 : 1
1 : 2
1 : 4
1 : 8
1 : 16
1 : 32
1 : 64
1 : 128
OSC
RABIE
Bit 3
PSA
/4)
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
R/W-1
PSA
Bit 2
T0IF
PS2
INTF
Bit 1
PS1
R/W-1
PS2
RABIF 0000 0000 0000 0000
Bit 0
PS0
x = Bit is unknown
1111 1111 1111 1111
xxxx xxxx uuuu uuuu
POR, BOR
Value on
R/W-1
PS1
DS41262E-page 83
Value on
all other
Resets
R/W-1
PS0
bit 0