PIC16F946-E/PT Microchip Technology, PIC16F946-E/PT Datasheet - Page 104

• Manufacturer Part Number: PIC16F946-E/PT
• Description: Microcontroller
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F946-E/PT

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, POR, PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 14KB (8K x 14)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 336 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 64-TFQFP
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 352 B
• Interface Type: SSP, I2C, AUSART, SPI
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 53
• Number Of Timers: 3
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, MA160011
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: MA160011 - DAUGHTER BOARD PICDEM LCD 16F91X
• Lead Free Status / Rohs Status: Details

PIC16F946
REGISTER 8-3:
TABLE 8-2:
DS41265A-page 102
0Bh/8Bh
0Dh
9Ch
97h
85h
8Dh
9Dh
Legend:
Address
INTCON
PIR2
CMCON0
CMCON1
TRISA
PIE2
VRCON
bit 7
bit 6
bit 5
bit 4
bit 3-0
x = unknown, u = unchanged, – = unimplemented, read as ‘0’. Shaded cells are not used by the comparator or Comparator Voltage
Reference module.
Name
REGISTERS ASSOCIATED WITH COMPARATOR MODULE
C2OUT
TRISA7
OSFIF
OSFIE
VREN
VRCON – VOLTAGE REFERENCE CONTROL REGISTER (ADDRESS: 9Dh)
Bit 7
bit 7
GIE
VREN: CV
1 = CV
0 = CV
Unimplemented: Read as ‘0’
VRR: CV
1 = Low range
0 = High range
Unimplemented: Read as ‘0’
VR<3:0>: CV
When VRR = 1: CV
When VRR = 0: CV
Legend:
R = Readable bit
- n = Value at POR
—
R/W-0
VREN
REF
REF
C1OUT
TRISA6
Bit 6
PEIE
C2IF
C2IE
REF
—
—
REF
circuit powered on
circuit powered down, no I
Range Selection bit
REF
Enable bit
U-0
—
TRISA5
C2INV
C1IE
Bit 5
T0IE
C1IF
VRR
Value Selection bits 0
—
REF
REF
= (VR<3:0>/24) * V
= V
TRISA4
R/W-0
LCDIF
C1INV
LCDIE
Bit 4
INTE
VRR
DD
Preliminary
—
—
W = Writable bit
‘1’ = Bit is set
/4 + (VR<3:0>/32) * V
TRISA3
RBIE
Bit 3
VR3
CIS
—
—
—
DD
R/W-0
—
drain and CV
VR<3:0>
DD
TRISA2
LVDIF
LVDIE
Bit 2
T0IF
CM2
VR2
—
R/W-0
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
VR3
DD
TRISA1
T1GSS
Bit 1
INTF
CM1
VR1
REF
15
—
—
= V
C2SYNC
R/W-0
CCP2IE
CCP2IF
TRISA0
SS
VR2
RBIF
Bit 0
CM0
VR0
© 2005 Microchip Technology Inc.
.
0000 000x
0000 -0-0
0000 0000
---- --10
1111 1111
0000 -0-0
0-0- 0000
POR, BOR
Value on
x = Bit is unknown
R/W-0
VR1
0000 000x
0000 -0-0
0000 0000
---- --10
1111 1111
0000 -0-0
0-0- 0000
Value on
all other
R/W-0
Resets
VR0
bit 0