PIC16F946 Datasheet, PDF (262/274 Pages) Microchip Technology – 64-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver and nanoWatt Technology

PIC16F946
APPENDIX C: CONVERSION
CONSIDERATIONS
Considerations for converting from previous versions
of devices to the ones listed in this data sheet are listed
in Table C-1.
TABLE C-1: CONVERSION CONSIDERATIONS
Characteristic
PIC16F946
PIC16F926
Pins
Timers
Interrupts
Communication
Frequency
Voltage
A/D
CCP
Comparator
Comparator Voltage
Reference
Program Memory
RAM
EEPROM Data
Code Protection
Program Memory
Write Protection
LCD Module
Other
64
3
20
USART, SSP
(SPI™, I²C™ Slave)
20 MHz
2.0V-5.5V
10-bit,
7 conversion clock selects
2
2
Yes
64
3
9
SSP
(SPI, I²C Master/Slave)
20 MHz
2.5V-5.5V
10-bit,
4 conversion clock selects
1
—
—
8K Flash
332 bytes
256 bytes
On/Off
—
8K OTP
336 bytes
—
Segmented, starting at end
of program memory
—
42 segment drivers,
4 commons
In-Circuit Debugger
32 segment drivers,
4 commons
—
PIC18F6490
64
4
22
USART, SSP
(SPI, I²C Master/Slave)
20 MHz
2.0V-5.5V
10-bit,
8 conversion clock selects
2
2
Yes
8K Flash
768 bytes
—
On/Off
—
32 segment drivers,
4 commons
In-Circuit Debugger
DS41265A-page 260
Preliminary
© 2005 Microchip Technology Inc.