PIC16LF737-I/ML Microchip Technology, PIC16LF737-I/ML Datasheet - Page 47
![IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,LLCC,28PIN,PLASTIC](/photos/6/81/68120/150-28-qfn_sml.jpg)
PIC16LF737-I/ML
Manufacturer Part Number
PIC16LF737-I/ML
Description
IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,LLCC,28PIN,PLASTIC
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Specifications of PIC16LF737-I/ML
Rohs Compliant
YES
Core Processor
PIC
Core Size
8-Bit
Speed
10MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
25
Program Memory Size
7KB (4K x 14)
Program Memory Type
FLASH
Ram Size
368 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 11x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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4.7.3.2
A Reset will clear SCS<1:0> back to ‘00’. The
sequence for starting the primary oscillator following a
Reset is the same for all forms of Reset, including
POR. There is no transition sequence from the
alternate system clock to the primary system clock on
a Reset condition. Instead, the device will reset the
state of the OSCCON register and default to the
primary system clock. The sequence of events that
take place after this will depend upon the value of the
FOSC bits in the Configuration register. If the external
oscillator is configured as a crystal (HS, XT or LP), the
CPU will be held in the Q1 state until 1024 clock cycles
have transpired on the primary clock. This is
necessary because the crystal oscillator had been
powered down until the time of the transition.
During
execution and/or peripheral operation is suspended.
If the primary system clock is either RC, EC or INTRC,
the CPU will begin operating on the first Q1 cycle
following the wake-up event. This means that there is
FIGURE 4-10:
2004 Microchip Technology Inc.
System Clock
Note:
Note 1:
CPU Start-up
Peripheral
Program
Counter
2:
3:
4:
T1OSI
OSC1
OSC2
OSTS
Clock
Reset
Sleep
the
T
T
T
Refer to parameter D032 in Section 18.0 “Electrical Characteristics”.
OSC
EPU
T
If Two-Speed Clock Start-up mode is
enabled, the INTRC will act as the system
clock until the Oscillator Start-up Timer has
timed out.
1
P
Returning to Primary Oscillator with
a Reset
= 30.52 s.
= 5-10 s.
= 50 ns minimum.
oscillator
Q4
PC
TIMING LP CLOCK TO PRIMARY SYSTEM CLOCK AFTER RESET (HS, XT, LP)
Q1
start-up
T
OST
T
EPU
(4)
(3)
time,
0000h
instruction
Q1 Q2 Q3 Q4 Q1 Q2
T
OSC
T
T
1
(2)
P
(1)
no oscillator start-up time required because the
primary clock is already stable; however, there is a
delay between the wake-up event and the following
Q2. An internal delay timer of 5-10 s will suspend
operation after the Reset to allow the CPU to become
ready for code execution. The CPU and peripheral
clock will be held in the first Q1.
The sequence of events is as follows:
1.
2.
3.
4.
0001h
Q3 Q4 Q1 Q2
A device Reset is asserted from one of many
sources (WDT, BOR, MCLR, etc.).
The device resets and the CPU start-up timer is
enabled if in Sleep mode. The device is held in
Reset until the CPU start-up time-out is
complete.
If the primary system clock is configured as an
external oscillator (HS, XT, LP), then the OST
will be active waiting for 1024 clocks of the pri-
mary system clock. While waiting for the OST,
the device will be held in Reset. The OST and
CPU start-up timers run in parallel.
After both the CPU start-up timer and the
Oscillator Start-up Timer have timed out, the
device will wait for one additional clock cycle
and instruction execution will begin.
0003h
Q3
Q4
PIC16F7X7
Q1 Q2 Q3 Q4
0004h
DS30498C-page 45
0005h
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