PIC16LF648A-I/SS Microchip Technology, PIC16LF648A-I/SS Datasheet - Page 91
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PIC16LF648A-I/SS
Manufacturer Part Number
PIC16LF648A-I/SS
Description
IC PIC MCU FLASH 4KX14 20SSOP
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F627A-IP.pdf
(180 pages)
2.PIC16LF627A-IP.pdf
(8 pages)
3.PIC16LF627A-ISO.pdf
(180 pages)
Specifications of PIC16LF648A-I/SS
Core Size
8-Bit
Program Memory Size
7KB (4K x 14)
Core Processor
PIC
Speed
20MHz
Connectivity
UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
16
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
20-SSOP
Controller Family/series
PIC16LF
No. Of I/o's
16
Eeprom Memory Size
256Byte
Ram Memory Size
256Byte
Cpu Speed
20MHz
No. Of Timers
3
Processor Series
PIC16LF
Core
PIC
Data Bus Width
8 bit
Data Ram Size
256 B
Interface Type
SCI, USART
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
16
Number Of Timers
1 x 16 bit
Operating Supply Voltage
2 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
52715-96, 52716-328, 52717-734
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, DM163014, DM164120-4
Minimum Operating Temperature
- 40 C
Data Rom Size
256 B
Height
1.75 mm
Length
7.2 mm
Supply Voltage (max)
5.5 V
Supply Voltage (min)
2 V
Width
5.3 mm
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Converters
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
PIC16LF648A-I/SS
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
13.0
The EEPROM data memory is readable and writable
during normal operation (full V
is not directly mapped in the register file space. Instead
it is indirectly addressed through the Special Function
Registers (SFRs). There are four SFRs used to read
and write this memory. These registers are:
• EECON1
• EECON2 (Not a physically implemented register)
• EEDATA
• EEADR
EEDATA holds the 8-bit data for read/write and EEADR
holds the address of the EEPROM location being
accessed. PIC16F627A/628A devices have 128 bytes
of data EEPROM with an address range from 0h to
7Fh. The PIC16F648A device has 256 bytes of data
EEPROM with an address range from 0h to FFh.
REGISTER 13-1:
REGISTER 13-2:
© 2005 Microchip Technology Inc.
DATA EEPROM MEMORY
bit 7-0
bit 7
bit 6-0
EEDATA – EEPROM DATA REGISTER (ADDRESS: 9Ah)
EEADR – EEPROM ADDRESS REGISTER (ADDRESS: 9Bh)
bit 7
EEDATn: Byte value to Write to or Read from data EEPROM memory location.
Legend:
R = Readable bit
-n = Value at POR
bit 7
PIC16F627A/628A
Unimplemented Address: Must be set to ‘0’
PIC16F648A
EEADR: Set to ‘1’ specifies top 128 locations (128-255) of EEPROM Read/Write Operation
EEADR: Specifies one of 128 locations of EEPROM Read/Write Operation
Legend:
R = Readable bit
-n = Value at POR
EEDAT7
EADR7
R/W-x
R/W-x
DD
range). This memory
EEDAT6
EADR6
R/W-x
R/W-x
EEDAT5
EADR5
R/W-x
R/W-x
W = Writable bit
‘1’ = Bit is set
W = Writable bit
‘1’ = Bit is set
PIC16F627A/628A/648A
EEDAT4
EADR4
R/W-x
R/W-x
The EEPROM data memory allows byte read and write.
A byte write automatically erases the location and
writes the new data (erase before write). The EEPROM
data memory is rated for high erase/write cycles. The
write time is controlled by an on-chip timer. The write
time will vary with voltage and temperature, as well as
from chip-to-chip. Please refer to AC specifications for
exact limits.
When the device is code-protected, the CPU can
continue to read and write the data EEPROM memory. A
device programmer can no longer access this memory.
Additional information on the data EEPROM is
available in the PICmicro
Manual (DS33023).
EEDAT3
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
EADR3
R/W-x
R/W-x
EEDAT2 EEDAT1
EADR2
R/W-x
R/W-x
®
Mid-Range Reference
x = Bit is unknown
x = Bit is unknown
EADR1
R/W-x
R/W-x
DS40044D-page 89
EEDAT0
EADR0
R/W-x
R/W-x
bit 0
bit 0