PIC16CE625-20I/SS Microchip Technology, PIC16CE625-20I/SS Datasheet - Page 31
![IC MCU OTP 2KX14 EE COMP 20SSOP](/photos/6/58/65895/150-20-ssop_sml.jpg)
PIC16CE625-20I/SS
Manufacturer Part Number
PIC16CE625-20I/SS
Description
IC MCU OTP 2KX14 EE COMP 20SSOP
Manufacturer
Microchip Technology
Series
PIC® 16Cr
Datasheet
1.PIC16CE623-04P.pdf
(113 pages)
Specifications of PIC16CE625-20I/SS
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Peripherals
Brown-out Detect/Reset, POR, WDT
Number Of I /o
13
Program Memory Size
3.5KB (2K x 14)
Program Memory Type
OTP
Eeprom Size
128 x 8
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
20-SSOP
For Use With
309-1016 - ADAPTER 20-SSOP TO 18-DIP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Converters
-
Connectivity
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16CE625-20I/SS
Manufacturer:
MICROCHIP
Quantity:
6 625
FIGURE 6-1:
FIGURE 6-2:
6.2
After generating a START condition, the processor
transmits a control byte consisting of a EEPROM
address and a Read/Write bit that indicates what type
of operation is to be performed. The EEPROM address
consists of a 4-bit device code (1010) followed by three
don’t care bits.
The last bit of the control byte determines the operation
to be performed. When set to a one, a read operation
is selected, and when set to a zero, a write operation is
selected. (Figure 6-3). The bus is monitored for its cor-
responding EEPROM address all the time. It generates
an acknowledge bit if the EEPROM address was true
and it is not in a programming mode.
SDA
SCL
1999 Microchip Technology Inc.
SCL
SDA
(A)
Device Addressing
CONDITION
START
(B)
DATA TRANSFER SEQUENCE ON THE SERIAL BUS
ACKNOWLEDGE TIMING
1
Transmitter must release the SDA line at this point
allowing the Receiver to pull the SDA line low to
acknowledge the previous eight bits of data.
2
3
Data from transmitter
4
ACKNOWLEDGE
ADDRESS OR
VALID
5
(C)
6
TO CHANGE
ALLOWED
7
DATA
Acknowledge
FIGURE 6-3:
8
Start Bit
Bit
S
9
1
Device Select
(D)
1
0
Receiver must release the SDA line at this
point so the Transmitter can continue
sending data.
Bits
Data from transmitter
EEPROM Address
CONTROL BYTE FORMAT
1
2
PIC16CE62X
0
3
Read/Write Bit
X
Don’t Care
Acknowledge Bit
Bits
X
DS40182C-page 31
X
CONDITION
R/W
STOP
(C)
ACK
(A)