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PDF PIC16C745 Data sheet ( Hoja de datos )
| Número de pieza | PIC16C745 | |
| Descripción | 8-Bit CMOS Microcontrollers with USB | |
| Fabricantes | Microchip Technology | |
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PIC16C745/765
8-Bit CMOS Microcontrollers with USB
Devices included in this data sheet:
• PIC16C745
• PIC16C765
Microcontroller Core Features:
• High-performance RISC CPU
• Only 35 single word instructions
Device
Memory
Program Data
x14 x8
Pins
A/D
Resolution
A/D
Channels
PIC16C745 8K 256 28
8
5
PIC16C765 8K 256 40
8
8
• All single cycle instructions except for program
branches which are two cycle
• Interrupt capability (up to 12 internal/external
interrupt sources)
• Eight level deep hardware stack
• Direct, indirect and relative addressing modes
• Power-on Reset (POR)
• Power-up Timer (PWRT) and Oscillator Start-up
Timer (OST)
• Watchdog Timer (WDT) with its own on-chip RC
oscillator for reliable operation
• Brown-out detection circuitry for
Brown-out Reset (BOR)
• Programmable code-protection
• Power saving SLEEP mode
• Selectable oscillator options
- EC - External clock (24 MHz)
- E4 - External clock with PLL (6 MHz)
- HS - Crystal/Resonator (24 MHz)
- H4 - Crystal/Resonator with PLL (6 MHz)
• Processor clock of 24 MHz derived from 6 MHz
crystal or resonator
• Fully static low-power, high-speed CMOS
• In-Circuit Serial Programming(ICSP)
• Operating voltage range
- 4.35 to 5.25V
• High Sink/Source Current 25/25 mA
• Wide temperature range
- Industrial (-40C - 85C)
• Low-power consumption:
- ~ 16 mA @ 5V, 24 MHz
- 100 A typical standby current
Pin Diagrams
28-Pin DIP, SOIC
MCLR/VPP
RA0/AN0
RA1/AN1
RA2/AN2
RA3/AN3/VREF
RA4/T0CKI
RA5/AN4
Vss
OSC1/CLKIN
OSC2/CLKOUT
RC0/T1OSO/T1CKI
RC1/T1OSI/CCP2
RC2/CCP1
VUSB
• 1 28
2 27
3 26
4 25
5 24
6 23
7 22
8 21
9 20
10 19
11 18
12 17
13 16
14 15
RB7
RB6
RB5
RB4
RB3
RB2
RB1
RB0/INT
VDD
Vss
RC7/RX/DT
RC6/TX/CK
D+
D-
Peripheral Features:
• Universal Serial Bus (USB 1.1)
- Soft attach/detach
• 64 bytes of USB dual port RAM
• 22 (PIC16C745) or 33 (PIC16C765) I/O pins
- Individual direction control
- 1 high voltage open drain (RA4)
- 8 PORTB pins with:
- Interrupt-on-change control (RB<7:4> only)
- Weak pull-up control
- 3 pins dedicated to USB
• Timer0: 8-bit timer/counter with 8-bit prescaler
• Timer1: 16-bit timer/counter with prescaler
can be incremented during SLEEP via external
crystal/clock
• Timer2: 8-bit timer/counter with 8-bit period
register, prescaler and postscaler
• 2 Capture, Compare and PWM modules
- Capture is 16-bit, max. resolution is 10.4 ns
- Compare is 16-bit, max. resolution is 167 ns
- PWM maximum resolution is 10-bit
• 8-bit multi-channel Analog-to-Digital converter
• Universal Synchronous Asynchronous Receiver
Transmitter (USART/SCI)
• Parallel Slave Port (PSP) 8-bits wide, with exter-
nal RD, WR and CS controls (PIC16C765 only)
1999-2013 Microchip Technology Inc.
Preliminary
DS41124D-page 1
1 page  
1.0 GENERAL DESCRIPTION
The PIC16C745/765 devices are low cost, high-perfor-
mance, CMOS, fully-static, 8-bit microcontrollers in the
PIC16CXX mid-range family.
All PIC® microcontrollers employ an advanced RISC
architecture. The PIC16C745/765 microcontroller fam-
ily has enhanced core features, eight-level deep stack
and multiple internal and external interrupt sources.
The separate instruction and data buses of the Harvard
architecture allow a 14-bit wide instruction word with
the separate 8-bit wide data. The two stage instruction
pipeline allows all instructions to execute in a single
cycle, except for program branches, which require two
cycles. A total of 35 instructions (reduced instruction
set) are available. Additionally, a large register set gives
some of the architectural innovations used to achieve a
very high performance.
The PIC16C745 device has 22 I/O pins. The
PIC16C765 device has 33 I/O pins. Each device has
256 bytes of RAM. In addition, several peripheral fea-
tures are available including: three timer/counters, two
Capture/Compare/PWM modules and two serial ports.
The Universal Serial Bus (USB 1.1) low speed periph-
eral provides bus communications. The Universal
Synchronous Asynchronous Receiver Transmitter
(USART) is also known as the Serial Communications
Interface or SCI. Also, a 5-channel high-speed 8-bit
A/D is provided on the PIC16C745, while the
PIC16C765 offers 8 channels. The 8-bit resolution is
ideally suited for applications requiring a low cost ana-
log interface (e.g., thermostat control, pressure sens-
ing, etc.).
The PIC16C745/765 devices have special features to
reduce external components, thus reducing cost,
enhancing system reliability and reducing power con-
sumption. There are 4 oscillator options, of which EC is
for the external regulated clock source, E4 is for the
external regulated clock source with the PLL enabled,
HS is for the high speed crystals/resonators and H4 is
for high speed crystals/resonators with the PLL
enabled. The SLEEP (power-down) feature provides a
power-saving mode. The user can wake-up the chip
from SLEEP through several external and internal
interrupts and RESETS.
PIC16C745/765
A highly reliable Watchdog Timer (WDT), with a dedi-
cated on-chip RC oscillator, provides protection against
software lock-up, and also provides one way of waking
the device from SLEEP.
A UV erasable CERDIP packaged version is ideal for
code development, while the cost-effective One-Time-
Programmable (OTP) version is suitable for production
in any volume.
The PIC16C745/765 devices fit nicely in many applica-
tions ranging from security and remote sensors to appli-
ance controls and automotives. The EPROM
technology makes customization of application pro-
grams (data loggers, industrial controls, UPS)
extremely fast and convenient. The small footprint pack-
ages make this microcontroller series perfect for all
applications with space limitations. Low-cost, low-
power, high-performance, ease of use and I/O flexibility
make the PIC16C745/765 devices very versatile, even
in areas where no microcontroller use has been consid-
ered before (e.g., timer functions, serial communication,
capture and compare, PWM functions and coprocessor
applications).
1.1 Family and Upward Compatibility
Users familiar with the PIC16C5X microcontroller fam-
ily will realize that this is an enhanced version of the
PIC16C5X architecture. Code written for the
PIC16C5X can be easily ported to the PIC16C745/765
family of devices.
1.2 Development Support
PIC® devices are supported by the complete line of
Microchip Development tools.
Please refer to Section 15.0 for more details about
Microchip’s development tools.
1999-2013 Microchip Technology Inc.
Preliminary
DS41124D-page 5
5 Page 
PIC16C745/765
TABLE 3-1: PIC16C745/765 PINOUT DESCRIPTION
Name
Function
Input
Type
Output
Type
Description
MCLR/VPP
OSC1/CLKIN
OSC2/CLKOUT
MCLR
VPP
OSC1
CLKIN
OSC2
CLKOUT
ST
Power
Xtal
ST
—
—
—
—
—
—
Xtal
CMOS
Master Clear
Programming Voltage
Crystal/Resonator
External Clock Input
Crystal/Resonator
Internal Clock (FINT/4) Output
RA0/AN0
RA1/AN1
RA2/AN2
RA3/AN3/VREF
RA4/T0CKI
RA5/AN4
RB0/INT
RB1
RB2
RB3
RB4
RB5
RB6/ICSPC
RB7/ICSPD
RA0
AN0
RA1
AN1
RA2
AN2
RA3
AN3
VREF
RA4
T0CKI
RA5
AN4
RB0
INT
RB1
RB2
RB3
RB4
RB5
RB6
ICSPC
RB7
ICSPD
ST CMOS Bi-directional I/O
AN — A/D Input
ST CMOS Bi-directional I/O
AN — A/D Input
ST CMOS Bi-directional I/O
AN — A/D Input
ST CMOS Bi-directional I/O
AN — A/D Input
AN — A/D Positive Reference
ST OD Bi-directional I/O
ST — Timer 0 Clock Input
ST Bi-directional I/O
AN — A/D Input
TTL CMOS Bi-directional I/O(1)
ST — Interrupt
TTL CMOS Bi-directional I/O(1)
TTL CMOS Bi-directional I/O(1)
TTL CMOS Bi-directional I/O(1)
TTL CMOS Bi-directional I/O with Interrupt-on-Change(1)
TTL CMOS Bi-directional I/O with Interrupt-on-Change(1)
TTL CMOS Bi-directional I/O with Interrupt-on-Change(1)
ST In-Circuit Serial Programming Clock Input
TTL CMOS Bi-directional I/O with Interrupt-on-Change(1)
ST CMOS In-Circuit Serial Programming Data I/O
RC0
ST CMOS Bi-directional I/O
RC0/T1OSO/T1CKI
T1OSO
—
Xtal T1 Oscillator Output
T1CKI
ST
— T1 Clock Input
RC1/T1OSI/CCP2(1)
RC1
T1OSI
ST CMOS Bi-directional I/O
Xtal — T1 Oscillator Input
CCP2
Capture In/Compare Out/PWM Out 2
RC2/CCP1
RC2
CCP1
ST CMOS Bi-directional I/O
Capture In/Compare Out/PWM Out 1
VUSB
VUSB
Power Regulator Output Voltage
D-
D-
USB
USB USB Differential Bus
Legend:
D+ D+ USB
OD = open drain, ST = Schmitt Trigger
USB USB Differential Bus
Note 1: Weak pull-ups. PORT B pull-ups are byte wide programmable.
2: PIC16C765 only.
1999-2013 Microchip Technology Inc.
Preliminary
DS41124D-page 11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet PIC16C745.PDF ] | |
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