PIC16C642-04/SO Microchip Technology, PIC16C642-04/SO Datasheet - Page 33

• 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

EXAMPLE 5-2:
CLRF
BSF
MOVLW
MOVWF
TABLE 5-3:
TABLE 5-4:
RB0/INT
RB1
RB2
RB3
RB4
RB5
RB6
RB7
Legend: ST = Schmitt Trigger input, TTL = TTL input
Note 1: This buffer is a Schmitt Trigger input when configured as the external interrupt.
Address Name
06h
86h
81h
Legend: x = unknown, u = unchanged, shaded cells are not used by PORTB.
1996 Microchip Technology Inc.
Name
2: This buffer is a Schmitt Trigger input when used in serial programming mode.
PORTB
STATUS, RP0
0xCF
TRISB
PORTB
TRISB
OPTION
Bit #
bit0
bit1
bit2
bit3
bit4
bit5
bit6
bit7
PORTB FUNCTIONS
SUMMARY OF REGISTERS ASSOCIATED WITH PORTB
INITIALIZING PORTB
TRISB7
RBPU
Bit 7
RB7
; Initialize PORTB by
; clearing output
; data latches
; Select Bank 1
; Value used to
; initialize data
; direction
; Set RB<3:0> as inputs
; RB<5:4> as outputs
; RB<7:6> as inputs
Buffer Type
TTL/ST
TTL/ST
TTL/ST
INTEDG
TRISB6
TTL
TTL
TTL
TTL
TTL
Bit 6
RB6
(1)
(2)
(2)
TRISB5 TRISB4 TRISB3 TRISB2 TRISB1 TRISB0 1111 1111
T0CS
Bit 5
RB5
Input/output or external interrupt input. Internal software programmable
weak pull-up.
Input/output pin. Internal software programmable weak pull-up.
Input/output pin. Internal software programmable weak pull-up.
Input/output pin. Internal software programmable weak pull-up.
Input/output pin (with interrupt on change). Internal software programmable
weak pull-up.
Input/output pin (with interrupt on change). Internal software programmable
weak pull-up.
Input/output pin (with interrupt on change). Internal software programmable
weak pull-up. Serial programming clock pin.
Input/output pin (with interrupt on change). Internal software programmable
weak pull-up. Serial programming data pin.
T0SE
Bit 4
RB4
Preliminary
PIC16C64X & PIC16C66X
Bit 3
RB3
PSA
Bit 2
RB2
PS2
Function
Bit 1
RB1
PS1
Bit 0
RB0
PS0
xxxx xxxx
1111 1111
Value on:
POR,
BOR
DS30559A-page 33
uuuu uuuu
1111 1111
1111 1111
Value on
all other
resets