PIC16C74B-20/P Microchip Technology Inc., PIC16C74B-20/P Datasheet - Page 12

• Manufacturer Part Number: PIC16C74B-20/P
• Description: 40 PIN, 7 KB OTP, 192 RAM, 33 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC16C74B-20/P

• 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: 40-pin PDIP
• 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 3-2:
DS30605C-page 12
OSC1/CLKIN
OSC2/CLKOUT
MCLR/V
RA0/AN0
RA1/AN1
RA2/AN2
RA3/AN3/V
RA4/T0CKI
RA5/SS/AN4
RB0/INT
RB1
RB2
RB3
RB4
RB5
RB6
RB7
Legend: I = input
Note 1: This buffer is a Schmitt Trigger input when configured as the external interrupt.
Pin Name
2: This buffer is a Schmitt Trigger input when used in Serial Programming mode.
3: This buffer is a Schmitt Trigger input when configured as general purpose I/O and a TTL input when used in the Parallel
4: This buffer is a Schmitt Trigger input when configured in RC oscillator mode and a CMOS input otherwise.
5: A/D is not available on the PIC16C65B.
PP
(5)
(5)
(5)
— = Not used
Slave Port mode (for interfacing to a microprocessor bus).
REF
(5)
(5)
PIC16C65B/74B PINOUT DESCRIPTION
Pin#
DIP
13
14
33
34
35
36
37
38
39
40
1
2
3
4
5
6
7
O = output
TTL = TTL input
PLCC
Pin#
14
15
36
37
38
39
41
42
43
44
2
3
4
5
6
7
8
MQFP
TQFP
Pin#
30
31
18
19
20
21
22
23
24
10
11
14
15
16
17
8
9
I/O/P
Type
I/P
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O = input/output
ST = Schmitt Trigger input
O
I
ST/CMOS
TTL/ST
TTL/ST
TTL/ST
Buffer
Type
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
ST
ST
—
(1)
(2)
(2)
(4)
Oscillator crystal input/external clock source input.
Oscillator crystal output. Connects to crystal or resonator in
crystal oscillator mode. In RC mode, OSC2 pin outputs
CLKOUT which has 1/4 the frequency of OSC1, and
denotes the instruction cycle rate.
Master clear (RESET) input or programming voltage input.
This pin is an active low RESET to the device.
PORTA is a bi-directional I/O port.
PORTB is a bi-directional I/O port. PORTB can be software
programmed for internal weak pull-up on all inputs.
RA0 can also be analog input 0
RA1 can also be analog input 1
RA2 can also be analog input 2
RA3 can also be analog input 3 or analog reference
voltage
RA4 can also be the clock input to the Timer0 timer/
counter. Output is open drain type.
RA5 can also be analog input 4
the synchronous serial port.
RB0 can also be the external interrupt pin.
Interrupt-on-change pin.
Interrupt-on-change pin.
Interrupt-on-change pin. Serial programming clock.
Interrupt-on-change pin. Serial programming data.
P = power
(5)
.
Description
2000 Microchip Technology Inc.
(5)
(5)
(5)
(5)
or the slave select for
.
.
.