PIC16F874A-E/ML Microchip Technology, PIC16F874A-E/ML Datasheet - Page 48
![IC MCU FLASH 4KX14 A/D 44QFN](/photos/6/81/68122/150-44-qfn_sml.jpg)
PIC16F874A-E/ML
Manufacturer Part Number
PIC16F874A-E/ML
Description
IC MCU FLASH 4KX14 A/D 44QFN
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F688T-ISL.pdf
(688 pages)
3.PIC16C770-ISO.pdf
(8 pages)
4.PIC16F873A-ISO.pdf
(234 pages)
5.PIC16F873A-ISO.pdf
(6 pages)
6.PIC16F873A-ISO.pdf
(4 pages)
7.PIC16F873A-ISO.pdf
(6 pages)
8.PIC16F873A-ISO.pdf
(4 pages)
9.PIC16F873A-ISO.pdf
(22 pages)
Specifications of PIC16F874A-E/ML
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
33
Program Memory Size
7KB (4K x 14)
Program Memory Type
FLASH
Eeprom Size
128 x 8
Ram Size
192 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 125°C
Package / Case
44-QFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- PIC16F616T-ISL PDF datasheet
- PIC16F688T-ISL PDF datasheet #2
- PIC16C770-ISO PDF datasheet #3
- PIC16F873A-ISO PDF datasheet #4
- PIC16F873A-ISO PDF datasheet #5
- PIC16F873A-ISO PDF datasheet #6
- PIC16F873A-ISO PDF datasheet #7
- PIC16F873A-ISO PDF datasheet #8
- PIC16F873A-ISO PDF datasheet #9
- Current page: 48 of 234
- Download datasheet (5Mb)
PIC16F87XA
4.3
PORTC is an 8-bit wide, bidirectional port. The corre-
sponding data direction register is TRISC. Setting a
TRISC bit (= 1) will make the corresponding PORTC
pin an input (i.e., put the corresponding output driver in
a High-Impedance mode). Clearing a TRISC bit (= 0)
will make the corresponding PORTC pin an output (i.e.,
put the contents of the output latch on the selected pin).
PORTC is multiplexed with several peripheral functions
(Table 4-5). PORTC pins have Schmitt Trigger input
buffers.
When the I
pins can be configured with normal I
SMBus levels, by using the CKE bit (SSPSTAT<6>).
When enabling peripheral functions, care should be
taken in defining TRIS bits for each PORTC pin. Some
peripherals override the TRIS bit to make a pin an
output, while other peripherals override the TRIS bit to
make a pin an input. Since the TRIS bit override is in
effect while the peripheral is enabled, read-modify-
write instructions (BSF, BCF, XORWF) with TRISC as the
destination, should be avoided. The user should refer
to the corresponding peripheral section for the correct
TRIS bit settings.
FIGURE 4-6:
DS39582B-page 46
Note 1: I/O pins have diode protection to V
Port/Peripheral Select
Peripheral Data Out
Data Bus
WR Port
WR TRIS
RD TRIS
Peripheral
OE
RD Port
Peripheral Input
(3)
2: Port/Peripheral Select signal selects between port
3: Peripheral OE (Output Enable) is only activated if
PORTC and the TRISC Register
data and peripheral output.
Peripheral Select is active.
2
C module is enabled, the PORTC<4:3>
TRIS Latch
Data Latch
D
D
CK
CK
Q
Q
Q
Q
(2)
PORTC BLOCK DIAGRAM
(PERIPHERAL OUTPUT
OVERRIDE) RC<2:0>,
RC<7:5>
0
1
Q
EN
D
2
DD
Schmitt
Trigger
C levels, or with
and V
V
V
N
P
SS
DD
SS
.
pin
I/O
(1)
FIGURE 4-7:
Port/Peripheral Select
Peripheral Data Out
Data Bus
WR Port
WR TRIS
RD TRIS
Peripheral
OE
RD Port
SSP Input
Note 1: I/O pins have diode protection to V
(3)
2: Port/Peripheral Select signal selects between port data
3: Peripheral OE (Output Enable) is only activated if
and peripheral output.
Peripheral Select is active.
TRIS Latch
Data Latch
D
D
CK
CK
Q
Q
Q
Q
(2)
PORTC BLOCK DIAGRAM
(PERIPHERAL OUTPUT
OVERRIDE) RC<4:3>
2003 Microchip Technology Inc.
0
1
Q
CKE
SSPSTAT<6>
EN
D
Schmitt
Trigger
DD
and V
V
0
1
V
N
P
SS
DD
SS
Schmitt
Trigger
with
SMBus
Levels
.
pin
I/O
(1)
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