PIC16F1946-I/PT Microchip Technology, PIC16F1946-I/PT Datasheet - Page 3

• Manufacturer Part Number: PIC16F1946-I/PT
• Description: IC MCU 8BIT FLASH 64TQFP
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 16Fr

Specifications of PIC16F1946-I/PT

• Program Memory Type: FLASH
• Program Memory Size: 14KB (8K x 14)
• Package / Case: 64-TFQFP
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 32MHz
• Connectivity: I²C, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, POR, PWM, WDT
• Number Of I /o: 54
• Eeprom Size: 256 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 17x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• Interface Type: EUSART/I2C/SPI
• Maximum Clock Frequency: 32 MHz
• Number Of Programmable I/os: 54
• Number Of Timers: 5
• Maximum Operating Temperature: + 85 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
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 17-ch x 10-bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

Silicon Errata Issues
1. Module: Oscillator
1.1 HS Oscillator
FIGURE 1:
 2010 Microchip Technology Inc.
Note:
F
T
T
See the ADC Clock Period (T
section of the DS41414B data sheet.
The HS oscillator requires a minimum voltage of
3.0 volts (at 65°C or less) to operate at 20 MHz.
Work around
None.
Affected Silicon Revisions
CY
AD
OSC
A2
X
= 4/32 MHz = 125 nsec
= 1 µsec, ADCS = F
= 32 MHz
This document summarizes all silicon
errata issues from all revisions of silicon,
previous as well as current. Only the
issues indicated by the shaded column in
the following tables apply to the current
silicon revision (A4).
4 T
A3
8 T
1 T
CY
CY
AD
A4
INSTRUCTION CYCLE DELAY CALCULATION EXAMPLE
OSC
/32
AD
) vs. Device Operating Frequencies table, in the Analog-to-Digital Converter
88 T
11 T
84 T
CY
AD
CY
2. Module: ADC
2.1 Analog-to-Digital Converter (ADC)
PIC16(L)F1946/1947
Under certain device operating conditions, the
ADC conversion may not complete properly. When
this occurs, the ADC Interrupt Flag (ADIF) does
not get set, the ADGO/DONE bit does not get
cleared and the conversion result does not get
loaded into the ADRESH and ADRESL result reg-
isters.
Work around
Method 1: Select
Method 2: Provide a fixed delay in software
oscillator as the ADC conversion
clock source, and perform all
conversions with the device in
Sleep.
to stop the A-to-D conversion
manually, after all 10 bits are
converted,
conversion
automatically. The conversion is
stopped by clearing the GO/
DONE bit in software. The GO/
DONE bit must be cleared during
the last ½ T
conversion
completed automatically. Refer to
Figure 1
Stop the A/D conversion
between 10.5 and 11 T
cycles.
See the Analog-to-Digital
Conversion Timing diagram
in
Converter section of the
DS41414B data sheet.
the
for details.
the
AD
Analog-to-Digital
but
would
cycle, before the
DS80497C-page 3
dedicated
would
before
complete
AD
have
RC
the