PIC17C756A-33/PT Microchip Technology, PIC17C756A-33/PT Datasheet - Page 78
![IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,QFP,64PIN,PLASTIC](/photos/6/81/68123/c04-066_pf_sml.jpg)
PIC17C756A-33/PT
Manufacturer Part Number
PIC17C756A-33/PT
Description
IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,QFP,64PIN,PLASTIC
Manufacturer
Microchip Technology
Series
PIC® 17Cr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC17C752-16L.pdf
(304 pages)
3.PIC17C752-16L.pdf
(6 pages)
Specifications of PIC17C756A-33/PT
Rohs Compliant
YES
Core Processor
PIC
Core Size
8-Bit
Speed
33MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
50
Program Memory Size
32KB (16K x 16)
Program Memory Type
OTP
Ram Size
902 x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
External
Operating Temperature
0°C ~ 70°C
Package / Case
64-TFQFP
Processor Series
PIC17C
Core
PIC
Data Bus Width
8 bit
Data Ram Size
902 B
Interface Type
I2C, MSSP, RS- 232, SCI, SPI, USART
Maximum Clock Frequency
33 MHz
Number Of Programmable I/os
50
Number Of Timers
8
Operating Supply Voltage
3 V to 5.5 V
Maximum Operating Temperature
+ 70 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
0 C
On-chip Adc
12 bit
Data Rom Size
902 B
Height
1 mm
Length
10 mm
Supply Voltage (max)
5.5 V
Supply Voltage (min)
4.5 V
Width
10 mm
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC17C756A-33/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
- Current page: 78 of 304
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PIC17C7XX
10.3
PORTC is an 8-bit bi-directional port. The correspond-
ing data direction register is DDRC. A ’1’ in DDRC con-
figures the corresponding port pin as an input. A ’0’ in
the DDRC register configures the corresponding port
pin as an output. Reading PORTC reads the status of
the pins, whereas writing to PORTC will write to the port
latch. PORTC is multiplexed with the system bus.
When operating as the system bus, PORTC is the low
order byte of the address/data bus (AD7:AD0). The tim-
ing for the system bus is shown in the Electrical Speci-
fications section.
FIGURE 10-9:
DS30289B-page 78
Note:
Note: I/O pins have protection diodes to V
PORTC and DDRC Registers
This port is configured as the system bus
when the device’s configuration bits are
selected to Microprocessor or Extended
Microcontroller modes. In the two other
microcontroller modes, this port is a
general purpose I/O.
BLOCK DIAGRAM OF RC7:RC0 PORT PINS
TTL
Input
Buffer
DD
0
1
and V
Data
Port
SS
.
Q
Q
R
CK
CK
S
D
D
Example 10-3 shows an instruction sequence to initial-
ize PORTC. The Bank Select Register (BSR) must be
selected to Bank 1 for the port to be initialized. The fol-
lowing example uses the MOVLB instruction to load the
BSR register for bank selection.
EXAMPLE 10-3:
MOVLB
CLRF
MOVLW
MOVWF
1
PORTC, F
0xCF
DDRC
INSTRUCTION READ
; Select Bank 1
; Initialize PORTC data
; latches before setting
; the data direction reg
; Value used to initialize
; data direction
; Set RC<3:0> as inputs
; RC<5:4> as outputs
; RC<7:6> as inputs
INITIALIZING PORTC
DATA/ADDR_OUT
To D_Bus
2000 Microchip Technology Inc.
WR_PORTC
RD_PORTC
WR_DDRC
RD_DDRC
DRV_SYS
Data Bus
EX_EN
IR
System Bus
Control
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