PIC16F628-20I/P Microchip Technology Inc., PIC16F628-20I/P Datasheet - Page 93
![no-image](/images/manufacturer_photos/0/4/440/microchip_technology_inc__sml.jpg)
PIC16F628-20I/P
Manufacturer Part Number
PIC16F628-20I/P
Description
18 PIN, 3.5 KB FLASH, 224 RAM, 16 I/O
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC16F628-20IP.pdf
(170 pages)
Specifications of PIC16F628-20I/P
Comparators
2
Cpu Speed
5 MIPS
Eeprom Memory
128 Bytes
Input Output
16
Interface
SCI/USART
Memory Type
Flash
Number Of Bits
8
Package Type
18-pin PDIP
Programmable Memory
3.5K Bytes
Ram Size
224 Bytes
Speed
20 MHz
Timers
2-8-bit, 1-16-bit
Voltage, Range
2-5.5 V
Lead Free Status / Rohs Status
RoHS Compliant part
Electrostatic Device
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
PIC16F628-20I/P
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
- Current page: 93 of 170
- Download datasheet (5Mb)
14.0
Special circuits to deal with the needs of real-time
applications are what sets a microcontroller apart from
other processors. The PIC16F62X family has a host of
such features intended to maximize system reliability,
minimize
components, provide power saving Operating modes
and offer code protection.
These are:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10. Code protection
11. ID Locations
12. In-circuit Serial Programming
The PIC16F62X has a Watchdog Timer which is
controlled by configuration bits. It runs off its own RC
oscillator for added reliability. There are two timers that
offer necessary delays on power-up. One is the
Oscillator Start-up Timer (OST), intended to keep the
chip in RESET until the crystal oscillator is stable. The
other is the Power-up Timer (PWRT), which provides a
fixed delay of 72 ms (nominal) on power-up only,
designed to keep the part in RESET while the power
supply stabilizes. There is also circuitry to RESET the
device if a Brown-out occurs, which provides at least a
72 ms RESET. With these three functions on-chip,
most applications need no external RESET circuitry.
The SLEEP mode is designed to offer a very low
current Power-down mode. The user can wake-up from
SLEEP through external RESET, Watchdog Timer
wake-up or through an interrupt. Several oscillator
options are also made available to allow the part to fit
the application. The ER oscillator option saves system
cost while the LP crystal option saves power. A set of
configuration bits are used to select various options.
2003 Microchip Technology Inc.
OSC selection
RESET
Power-on Reset (POR)
Power-up Timer (PWRT)
Oscillator Start-Up Timer (OST)
Brown-out Reset (BOD)
Interrupts
Watchdog Timer (WDT)
SLEEP
SPECIAL FEATURES OF THE
CPU
cost
through
elimination
of
external
Preliminary
14.1
The configuration bits can be programmed (read as '0')
or left unprogrammed (read as '1') to select various
device configurations. These bits are mapped in
program memory location 2007h.
The user will note that address 2007h is beyond
the user program memory space. In fact, it belongs
to the special configuration memory space (2000h –
programming. See Programming Specification.
3FFFh), which can be accessed only during
Configuration Bits
PIC16F62X
DS40300C-page 91
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