Microcontroller IC 8-Bit 20MHz 3.5KB (2K x 14) FLASH 18-SOIC PIC16F628A-I/SO
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GENERAL DESCRIPTION
The PIC16F627A/628A/648A are 18-pin Flash-based
members of the versatile PIC16F627A/628A/648A
family of low-cost, high-performance, CMOS, fullystatic,
8-bit microcontrollers.
All PICandreg; microcontrollers employ an advanced RISC
architecture. The PIC16F627A/628A/648A have
enhanced core features, an 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 singlecycle,
except for program branches (which require two
cycles). A total of 35 instructions (reduced instruction
set) are available, complemented by a large register
set.
PIC16F627A/628A/648A microcontrollers typically
achieve a 2:1 code compression and a 4:1 speed
improvement over other 8-bit microcontrollers in their
class.
PIC16F627A/628A/648A devices have integrated
features to reduce external components, thus reducing
system cost, enhancing system reliability and reducing
power consumption.
The PIC16F627A/628A/648A has 8 oscillator
configurations. The single-pin RC oscillator provides a
low-cost solution. The LP oscillator minimizes power
consumption, XT is a standard crystal, and INTOSC is
a self-contained precision two-speed internal oscillator.
The HS mode is for High-Speed crystals. The EC mode
is for an external clock source.
The Sleep (Power-down) mode offers power savings.
Users can wake-up the chip from Sleep through several
external interrupts, internal interrupts and Resets.
A highly reliable Watchdog Timer with its own on-chip
RC oscillator provides protection against software lockup.
Table 1-1 shows the features of the PIC16F627A/628A/
648A mid-range microcontroller family.
A simplified block diagram of the PIC16F627A/628A/
648A is shown in Figure 3-1.
The PIC16F627A/628A/648A series fits in applications
ranging from battery chargers to low power remote
sensors. The Flash technology makes customizing
application programs (detection levels, pulse generation,
timers, etc.) extremely fast and convenient. The
small footprint packages makes this microcontroller
series ideal for all applications with space limitations.
Low cost, low power, high performance, ease of use
and I/O flexibility make the PIC16F627A/628A/648A
very versatile.
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High-Performance RISC CPU:
andbull; Operating speeds from DC andndash; 20 MHz
andbull; Interrupt capability
andbull; 8-level deep hardware stack
andbull; Direct, Indirect and Relative Addressing modes
andbull; 35 single-word instructions:
- All instructions single cycle except branches
Special Microcontroller Features:
andbull; Internal and external oscillator options:
- Precision internal 4 MHz oscillator factory
calibrated to andplusmn;1%
- Low-power internal 48 kHz oscillator
- External Oscillator support for crystals and
resonators
andbull; Power-saving Sleep mode
andbull; Programmable weak pull-ups on PORTB
andbull; Multiplexed Master Clear/Input-pin
andbull; Watchdog Timer with independent oscillator for
reliable operation
andbull; Low-voltage programming
andbull; In-Circuit Serial Programmingandtrade; (via two pins)
andbull; Programmable code protection
andbull; Brown-out Reset
andbull; Power-on Reset
andbull; Power-up Timer and Oscillator Start-up Timer
andbull; Wide operating voltage range (2.0-5.5V)
andbull; Industrial and extended temperature range
andbull; High-Endurance Flash/EEPROM cell:
- 100,000 write Flash endurance
- 1,000,000 write EEPROM endurance
- 40 year data retention
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Low-Power Features:
andbull; Standby Current:
- 100 nA @ 2.0V, typical
andbull; Operating Current:
- 12andmu;A @ 32 kHz, 2.0V, typical
- 120andmu;A @ 1 MHz, 2.0V, typical
andbull; Watchdog Timer Current:
- 1andmu;A @ 2.0V, typical
andbull; Timer1 Oscillator Current:
- 1.2andmu;A @ 32 kHz, 2.0V, typical
andbull; Dual-speed Internal Oscillator:
- Run-time selectable between 4 MHz and
48 kHz
- 4andmu;s wake-up from Sleep, 3.0V, typical
Peripheral Features:
andbull; 16 I/O pins with individual direction control
andbull; High current sink/source for direct LED drive
andbull; Analog comparator module with:
- Two analog comparators
- Programmable on-chip voltage reference
(VREF) module
- Selectable internal or external reference
- Comparator outputs are externally accessible
andbull; Timer0: 8-bit timer/counter with 8-bit
programmable prescaler
andbull; Timer1: 16-bit timer/counter with external crystal/
clock capability
andbull; Timer2: 8-bit timer/counter with 8-bit period
register, prescaler and postscaler
andbull; Capture, Compare, PWM module:
- 16-bit Capture/Compare
- 10-bit PWM
andbull; Addressable Universal Synchronous/Asynchronous
Receiver/Transmitter USART/SCI
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Specification :
| Packaging | Tube |
| Part Status | Active |
| Core Processor | PIC |
| Core Size | 8-Bit |
| Speed | 20MHz |
| Connectivity | UART/USART |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Number of I/O | 16 |
| Program Memory Size | 3.5KB (2K x 14) |
| Program Memory Type | FLASH |
| EEPROM Size | 128 x 8 |
| RAM Size | 224 x 8 |
| Voltage - Supply (Vcc/Vdd) | 3 V ~ 5.5 V |
| Data Converters | - |
| Oscillator Type | Internal |
| Operating Temperature | -40anddeg;C ~ 85anddeg;C (TA) |
| Package / Case | 18-SOIC (0.295andquot;, 7.50mm Width) |
| Supplier Device Package | 18-SOIC |
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Microcontroller IC Integrated Circuit Parts 8-Bit 20MHz 3.5KB (2K X 14) FLASH 18-SOIC Images
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