PIC16C433T-I/SO Microchip Technology, PIC16C433T-I/SO Datasheet - Page 68

• Manufacturer Part Number: PIC16C433T-I/SO
• Description: IC MCU CMOS 8BIT 10MHZ 2K 18SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Cr

Specifications of PIC16C433T-I/SO

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: LIN (Local Interconnect Network)
• Peripherals: POR, WDT
• Number Of I /o: 5
• Program Memory Size: 3.5KB (2K x 14)
• Program Memory Type: OTP
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 4x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 18-SOIC (7.5mm Width)
• For Use With: AC164030 - MODULE SKT PROMATEII 28DIP/SOIC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

PIC16C433
9.9
If the code protection bit(s) have not been pro-
grammed, 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 read-
able and writable during Program/Verify. It is recom-
mended that only the 4 Least Significant bits of the ID
location are used.
9.11
PIC16C433 microcontrollers can be serially pro-
grammed, 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 firm-
ware to be programmed.
The device is placed into a Program/Verify mode by hold-
ing the GP1 and GP0 pins low, while raising the MCLR
(V
tion). GP1 (clock) becomes the programming clock and
GP0 (data) becomes the programming data. Both GP0
and GP1 are Schmitt Trigger inputs in this mode.
After RESET, and if the device is placed into Program-
ming/Verify mode, the program counter (PC) is at loca-
tion 00h. A 6-bit command is then supplied to the
device. Depending on the command, 14 bits of pro-
gram 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 PIC16C433 Programming Specifications.
DS41139B-page 66
Note:
PP
) pin from V
Program Verification/Code Protection
ID Locations
In-Circuit Serial Programming
Microchip does not recommend code pro-
tecting windowed devices.
IL
to V
IHH
(see programming specifica-
Preliminary
FIGURE 9-18: TYPICAL IN-CIRCUIT SERIAL
External
Connector
Signals
Data I/O
CLK
+5V
V
0V
PP
PROGRAMMING
CONNECTION
To Normal
Connections
To Normal
Connections
 2002 Microchip Technology Inc.
V
V
MCLR/V
GP1
GP0
DD
SS
PIC16C433
PP
V
DD