PIC16C72AT-20E/SS Microchip Technology, PIC16C72AT-20E/SS Datasheet - Page 66
![IC MCU OTP 2KX14 A/D PWM 28SSOP](/photos/6/81/68119/150-28-ssop_sml.jpg)
PIC16C72AT-20E/SS
Manufacturer Part Number
PIC16C72AT-20E/SS
Description
IC MCU OTP 2KX14 A/D PWM 28SSOP
Manufacturer
Microchip Technology
Series
PIC® 16Cr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F818-ISO.pdf
(6 pages)
3.PIC16C62B-04SO.pdf
(120 pages)
4.PIC16C72A-04SP.pdf
(6 pages)
Specifications of PIC16C72AT-20E/SS
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
22
Program Memory Size
3.5KB (2K x 14)
Program Memory Type
OTP
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 5x8b
Oscillator Type
External
Operating Temperature
-40°C ~ 125°C
Package / Case
28-SSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
PIC16C62B/72A
FIGURE 10-10: WAKE-UP FROM SLEEP THROUGH INTERRUPT
10.14
If the code protection bits have not been programmed,
the on-chip program memory can be read out for verifi-
cation purposes.
10.15
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.
For ROM devices, these values are submitted along
with the ROM code.
10.16
PIC16CXXX 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
more lines for power, ground and the programming volt-
age. This allows customers to manufacture boards with
unprogrammed devices, and then program the micro-
controller just before shipping the product. This also
allows the most recent firmware or a custom firmware
to be programmed.
For complete details of serial programming, please
refer to the In-Circuit Serial Programming (ICSP™)
Guide, DS30277.
DS35008B-page 66
Note 1:
Note:
INSTRUCTION FLOW
INTF flag
(INTCON<1>)
GIE bit
(INTCON<7>)
Instruction
fetched
CLKOUT(4)
Instruction
executed
2:
3:
4:
INT pin
OSC1
Program Verification/Code Protection
ID Locations
In-Circuit Serial Programming
PC
XT, HS or LP oscillator mode assumed.
T
GIE = ’1’ assumed. In this case after wake- up, the processor jumps to the interrupt routine. If GIE = ’0’, execution will continue in-line.
CLKOUT is not available in these osc modes, but shown here for timing reference.
Microchip does not recommend code pro-
tecting windowed devices.
OST
Inst(PC) = SLEEP
Q1 Q2 Q3 Q4
= 1024T
Inst(PC - 1)
PC
OSC
(drawing not to scale) This delay will not be there for RC osc mode.
Q1 Q2 Q3 Q4
Inst(PC + 1)
SLEEP
PC+1
Q1
Processor in
SLEEP
™
PC+2
Preliminary
T
OST
(2)
Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4
Inst(PC + 2)
Inst(PC + 1)
PC+2
Interrupt Latency
Dummy cycle
(Note 2)
PC + 2
Q1 Q2 Q3 Q4
1999 Microchip Technology Inc.
Inst(0004h)
Dummy cycle
0004h
Q1 Q2 Q3 Q4
Inst(0005h)
Inst(0004h)
0005h