PIC16F639-I/SS Microchip Technology, PIC16F639-I/SS Datasheet - Page 93
PIC16F639-I/SS
Manufacturer Part Number
PIC16F639-I/SS
Description
IC MCU FLASH 2KX14 20SSOP
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC12F635-ISN.pdf
(234 pages)
3.PIC16F636-ISL.pdf
(8 pages)
4.PIC16F636-ISL.pdf
(4 pages)
5.PIC16F639-ISS.pdf
(6 pages)
6.PIC16F676-EP.pdf
(132 pages)
Specifications of PIC16F639-I/SS
Program Memory Type
FLASH
Program Memory Size
3.5KB (2K x 14)
Package / Case
20-SSOP
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Peripherals
Brown-out Detect/Reset, LVD, POR, WDT
Number Of I /o
11
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 3.6 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
PIC16F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
128 B
Interface Type
SPI
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
12
Number Of Timers
2
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
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
XLT20SS1-1 - SOCKET TRANSITION 20DIP 20SSOPXLT20SS-1 - SOCKET TRANSITION 18DIP 20SSOPAC162066 - HEADER INTRFC MPLAB ICD2 20PINAC164307 - MODULE SKT FOR PM3 28SSOP
Eeprom Size
-
Data Converters
-
Connectivity
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
- PIC16F616T-ISL PDF datasheet
- PIC12F635-ISN PDF datasheet #2
- PIC16F636-ISL PDF datasheet #3
- PIC16F636-ISL PDF datasheet #4
- PIC16F639-ISS PDF datasheet #5
- PIC16F676-EP PDF datasheet #6
- Current page: 93 of 234
- Download datasheet (4Mb)
9.0
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. There are four SFRs used to read
and write this memory:
• EECON1
• EECON2 (not a physically implemented register)
• EEDAT
• EEADR
EEDAT holds the 8-bit data for read/write and EEADR
holds the address of the EEPROM location being
accessed. PIC16F636/639 has 256 bytes of data
EEPROM and the PIC12F635 has 128 bytes.
REGISTER 9-1:
REGISTER 9-2:
© 2007 Microchip Technology Inc.
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-0
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-0
Note 1:
EEADR7
EEDAT7
R/W-0
R/W-0
DATA EEPROM MEMORY
(1)
PIC16F636/639 only. Read as ‘0’ on PIC12F635.
EEDATn: Byte Value to Write To or Read From Data EEPROM bits
EEADR: Specifies One of 256 Locations for EEPROM Read/Write Operation bits
EEADR6
EEDAT6
R/W-0
R/W-0
EEDAT: EEPROM DATA REGISTER
EEADR: EEPROM ADDRESS REGISTER
DD
W = Writable bit
‘1’ = Bit is set
W = Writable bit
‘1’ = Bit is set
EEADR5
range). This memory
EEDAT5
R/W-0
R/W-0
EEADR4
EEDAT4
R/W-0
R/W-0
PIC12F635/PIC16F636/639
U = Unimplemented bit, read as ‘0’
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
‘0’ = Bit is cleared
EEADR3
EEDAT3
R/W-0
R/W-0
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 A/C specifications in
Section 15.0 “Electrical Specifications” for exact
limits.
When the data memory is code-protected, the CPU
may continue to read and write the data EEPROM
memory. The device programmer can no longer access
the data EEPROM data and will read zeroes.
EEADR2
EEDAT2
R/W-0
R/W-0
x = Bit is unknown
x = Bit is unknown
EEADR1
EEDAT1
R/W-0
R/W-0
DS41232D-page 91
EEADR0
EEDAT0
R/W-0
R/W-0
bit 0
bit 0
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