PIC16C74A-20I/L Microchip Technology, PIC16C74A-20I/L Datasheet - Page 46

• Manufacturer Part Number: PIC16C74A-20I/L
• Description: IC MCU OTP 4KX14 A/D PWM 44PLCC
• Manufacturer: Microchip Technology
• Series: PIC® 16Cr

Specifications of PIC16C74A-20I/L

• Core Size: 8-Bit
• Program Memory Size: 7KB (4K x 14)
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Core Processor: PIC
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Number Of I /o: 33
• Program Memory Type: OTP
• Ram Size: 192 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 6 V
• Data Converters: A/D 8x8b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-PLCC
• Controller Family/series: PIC16C
• No. Of I/o's: 33
• Ram Memory Size: 192Byte
• Cpu Speed: 20MHz
• No. Of Timers: 3
• Processor Series: PIC16C
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 192 B
• Interface Type: I2C, SPI, USART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 33
• Number Of Timers: 3
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: ICE2000, DM163022
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit, 8 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC164309 - MODULE SKT FOR PM3 44PLCC444-1001 - DEMO BOARD FOR PICMICRO MCUDVA16XL441 - ADAPTER DEVICE ICE 44PLCC309-1040 - ADAPTER 44-PLCC ZIF TO 40-DIP309-1039 - ADAPTER 44-PLCC TO 40-DIPDV007003 - PROGRAMMER UNIVERSAL PROMATE II
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

PIC16C7X
FIGURE 5-4:
TABLE 5-3:
DS30390E-page 46
Set RBIF
Name
RB0/INT
RB1
RB2
RB3
RB4
RB5
RB6
RB7
Legend: TTL = TTL input, ST = Schmitt Trigger input
Note 1: This buffer is a Schmitt Trigger input when configured as the external interrupt.
Data bus
Note 1: I/O pins have diode protection to V
WR TRIS
WR Port
RBPU
RB7:RB6 in serial programming mode
2: This buffer is a Schmitt Trigger input when used in serial programming mode.
2: To enable weak pull-ups, set the appropriate TRIS bit(s)
(2)
From other
RB7:RB4 pins
and clear the RBPU bit (OPTION<7>).
Bit#
bit0
bit1
bit2
bit3
bit4
bit5
bit6
bit7
BLOCK DIAGRAM OF
RB7:RB4 PINS (PIC16C73/74)
PORTB FUNCTIONS
RD TRIS
RD Port
Data Latch
TRIS Latch
D
D
CK
CK
Q
Q
TTL/ST
TTL/ST
TTL/ST
Buffer
TTL
TTL
TTL
TTL
TTL
Q
Q
Latch
(1)
(2)
(2)
DD
EN
EN
D
and V
D
TTL
Input
Buffer
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.
Function
SS
V
RD Port
P
.
DD
Buffer
weak
pull-up
I/O
pin
ST
(1)
FIGURE 5-5:
Data bus
WR Port
WR TRIS
RBPU
Note 1: I/O pins have diode protection to V
RB7:RB6 in serial programming mode
Set RBIF
From other
RB7:RB4 pins
2: To enable weak pull-ups, set the appropriate TRIS bit(s)
(2)
and clear the RBPU bit (OPTION<7>).
RD TRIS
RD Port
Data Latch
TRIS Latch
D
D
BLOCK DIAGRAM OF
RB7:RB4 PINS (PIC16C72/
73A/74A/76/77)
CK
CK
Q
Q
1997 Microchip Technology Inc.
Q
Q
Latch
DD
EN
EN
D
D
and V
TTL
Input
Buffer
SS
V
P
DD
.
weak
pull-up
RD Port
Buffer
I/O
pin
Q1
Q3
(1)
ST