PIC16C74B-20I/L Microchip Technology Inc., PIC16C74B-20I/L Datasheet - Page 32

• Manufacturer Part Number: PIC16C74B-20I/L
• Description: 44 PIN, 7 KB OTP, 192 RAM, 33 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC16C74B-20I/L

• A/d Inputs: 8-Channel, 8-Bit
• Cpu Speed: 5 MIPS
• Eeprom Memory: 0 Bytes
• Input Output: 33
• Interface: I2C/SPI/USART
• Memory Type: OTP
• Number Of Bits: 8
• Package Type: 44-pin PLCC
• Programmable Memory: 7K Bytes
• Ram Size: 192 Bytes
• Speed: 4 MHz
• Timers: 2-8-bit, 1-16-bit
• Voltage, Range: 2.5-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

PIC16C63A/65B/73B/74B
TABLE 5-3:
TABLE 5-4:
DS30605C-page 32
Name
RB0/INT
RB1
RB2
RB3
RB4
RB5
RB6
RB7
Legend:
Note 1: This buffer is a Schmitt Trigger input when configured as the external interrupt.
06h
86h
81h
Legend: x = unknown, u = unchanged. Shaded cells are not used by PORTB.
Address
2:
TTL = TTL input, ST = Schmitt Trigger input
This buffer is a Schmitt Trigger input when used in Serial Programming mode.
PORTB
TRISB
OPTION_REG
Name
Bit#
bit0
bit1
bit2
bit3
bit4
bit5
bit6
bit7
SUMMARY OF REGISTERS ASSOCIATED WITH PORTB
PORTB FUNCTIONS
PORTB Data Direction register
RBPU
Bit 7
RB7
TTL/ST
TTL/ST
TTL/ST
Buffer
TTL
TTL
TTL
TTL
TTL
INTEDG
(1)
(2)
(2)
Bit 6
RB6
Function
Input/output pin 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.
Input/output pin (with interrupt-on-change). Internal software programmable weak
pull-up. Serial programming data.
T0CS
Bit 5
RB5
T0SE
Bit 4
RB4
Bit 3
RB3
PSA
Bit 2
RB2
PS2
Bit 1
RB1
PS1
Bit 0
RB0
PS0
2000 Microchip Technology Inc.
xxxx xxxx
1111 1111
1111 1111
Value on:
POR,
BOR
uuuu uuuu
1111 1111
1111 1111
Value on
RESETS
all other