PIC16C622-04I/P Microchip Technology, PIC16C622-04I/P Datasheet - Page 62
![IC MCU OTP 2KX14 COMP 18DIP](/photos/6/76/67657/18-dip_300mil__sml.jpg)
PIC16C622-04I/P
Manufacturer Part Number
PIC16C622-04I/P
Description
IC MCU OTP 2KX14 COMP 18DIP
Manufacturer
Microchip Technology
Series
PIC® 16Cr
Specifications of PIC16C622-04I/P
Core Processor
PIC
Core Size
8-Bit
Speed
4MHz
Peripherals
Brown-out Detect/Reset, POR, WDT
Number Of I /o
13
Program Memory Size
3.5KB (2K x 14)
Program Memory Type
OTP
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
3 V ~ 6 V
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
18-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Connectivity
-
Other names
PIC16C622-04I/PR
PIC16C622-04I/PR
PIC16C622-04I/PR
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PIC16C62X
9.9
If
programmed, the on-chip program memory can be
read out for verification purposes.
9.10
Four memory locations (2000h-2003h) are designated
as ID locations where the user can store checksum or
other code identification numbers. These locations are
not accessible during normal execution, but are
readable and writable during Program/Verify. Only the
Least Significant 4 bits of the ID locations are used.
DS30235J-page 60
Note:
the
Code Protection
ID Locations
code
Microchip does not recommend code
protecting windowed devices.
protection
bit(s)
have
not
been
9.11
The PIC16C62X microcontrollers can be serially
programmed while in the end application circuit. This is
simply done with two lines for clock and data and three
other lines for power, ground and the programming
voltage. This allows customers to manufacture boards
with unprogrammed devices and then program the
microcontroller just before shipping the product. This
also allows the most recent firmware or a custom
firmware to be programmed.
The device is placed into a Program/Verify mode by
holding the RB6 and RB7 pins low, while raising the
MCLR (V
specification). RB6 becomes the programming clock
and RB7 becomes the programming data. Both RB6
and RB7 are Schmitt Trigger inputs in this mode.
After RESET, to place the device into Programming/
Verify mode, the program counter (PC) is at location
00h. A 6-bit command is then supplied to the device.
Depending on the command, 14-bits of program data
are then supplied to or from the device, depending if
the command was a load or a read. For complete
details of serial programming, please refer to the
PIC16C6X/7X/9XX
(DS30228).
A typical In-Circuit Serial Programming connection is
shown in Figure 9-19.
FIGURE 9-19:
External
Connector
Signals
Data I/O
CLK
+5V
V
0V
In-Circuit Serial Programming™
PP
PP
) pin from V
To Normal
Connections
To Normal
Connections
TYPICAL IN-CIRCUIT
SERIAL PROGRAMMING
CONNECTION
Programming
2003 Microchip Technology Inc.
IL
to V
IHH
(see programming
V
V
MCLR/V
RB6
RB7
V
PIC16C62X
DD
SS
DD
Specification
PP
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