PIC16C642-04/SO Microchip Technology, PIC16C642-04/SO Datasheet - Page 115

• Manufacturer Part Number: PIC16C642-04/SO
• Description: IC MCU OTP 4KX14 COMP 28SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Cr

Specifications of PIC16C642-04/SO

• Core Size: 8-Bit
• Program Memory Size: 7KB (4K x 14)
• Core Processor: PIC
• Speed: 4MHz
• Peripherals: Brown-out Detect/Reset, LED, POR, WDT
• Number Of I /o: 22
• Program Memory Type: OTP
• Ram Size: 176 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 6 V
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 28-SOIC (7.5mm Width)
• Controller Family/series: PIC16C
• No. Of I/o's: 22
• Ram Memory Size: 176Byte
• Cpu Speed: 4MHz
• No. Of Timers: 1
• Processor Series: PIC16C
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 176 B
• Interface Type: RS- 232
• Maximum Clock Frequency: 4 MHz
• Number Of Programmable I/os: 33
• Number Of Timers: 8
• Operating Supply Voltage: 3 V to 6 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: -
• Data Converters: -
• Connectivity: -
• Lead Free Status / Rohs Status: Details

APPENDIX A: ENHANCEMENTS
The following are the list of enhancements over the
PIC16C5X microcontroller family:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10. Wake up from SLEEP through interrupt is
11. Two separate timers, Oscillator Start-up Timer
12. PORTB has weak pull-ups and interrupt on
13. Timer0 clock input, T0CKI pin is also a port pin
14. FSR is made a full 8-bit register.
15. “In-circuit programming” is made possible. The
16. PCON status register is added with a Power-on
17. Code protection scheme is enhanced such that
18. PORTA inputs are now Schmitt Trigger inputs.
19. Brown-out Reset circuitry has been added.
1996 Microchip Technology Inc.
Instruction word length is increased to 14 bits.
This allows larger page sizes both in program
memory (4K now as opposed to 512 before) and
register file (up to 176 bytes now versus 32 bytes
before).
A PC high latch register (PCLATH) is added to
handle program memory paging. PA2, PA1, PA0
bits are removed from STATUS register.
Data memory paging is slightly redefined.
STATUS register is modified.
Four new instructions have been added:
RETURN
Two instructions
phased out although they are kept for
compatibility with PIC16C5X.
OPTION
addressable.
Interrupt capability is added. Interrupt vector is
at 0004h.
Stack size is increased to 8 deep.
Reset vector is changed to 0000h.
Reset of all registers is revisited. Six different
reset (and wake-up) types are recognized.
Registers are reset differently.
added.
(OST) and Power-up Timer (PWRT) are
included for more reliable power-up. These
timers can be invoked selectively to avoid
unnecessary delays on power-up and wake-up.
change feature.
(RA4/T0CKI) and has a TRIS bit.
user can program PIC16CXX devices using only
five pins: V
(data in/out).
Reset status bit (POR), a Brown-out Reset sta-
tus bit (BOR), a Parity Error Reset (PER), and a
Memory Parity Enable (MPEEN) bit.
portions of the program memory can be
protected, while the remainder is unprotected.
,
RETFIE
and
DD
, V
,
TRIS
SS
ADDLW
TRIS
, V
PP
, and
and
registers
, RB6 (clock) and RB7
This document was created with FrameMaker 4 0 4
SUBLW
OPTION
.
are
are being
made
Preliminary
PIC16C64X & PIC16C66X
APPENDIX B: COMPATIBILITY
To convert code written for PIC16C5X to PIC16CXX,
the user should take the following steps:
1.
2.
3.
4.
5.
Remove any program memory page select
operations (PA2, PA1, PA0 bits) for
Revisit any computed jump operations (write to
PC or add to PC, etc.) to make sure page bits
are set properly under the new scheme.
Eliminate any data memory page switching.
Redefine data variables to reallocate them.
Verify all writes to STATUS, OPTION, and FSR
registers since these have changed.
Change reset vector to 0000h.
DS30559A-page 115
CALL
,
GOTO
.