PIC12F615T-I/MD Microchip Technology, PIC12F615T-I/MD Datasheet - Page 38
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PIC12F615T-I/MD
Manufacturer Part Number
PIC12F615T-I/MD
Description
1.75KB Flash, 64B RAM, 6 I/O, 8MHz Internal Oscillator 8 DFN 4x4mm T/R
Manufacturer
Microchip Technology
Series
PIC® 12Fr
Datasheets
1.PIC12F609T-ISN.pdf
(212 pages)
2.PIC12F609T-ISN.pdf
(26 pages)
3.PIC12F609T-ISN.pdf
(8 pages)
Specifications of PIC12F615T-I/MD
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
5
Program Memory Size
1.75KB (1K x 14)
Program Memory Type
FLASH
Ram Size
64 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
8-DFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
APGRD004 - REF DESIGN MOD AUTO AMBNT LIGHTAC162083 - HEADER MPLAB ICD2 PIC16F616 8/14AC164326 - MODULA SKT PM3 20QFNXLT08DFN2 - SOCKET TRANSITION ICE 14DIP/8DFN
Eeprom Size
-
Connectivity
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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PIC12F609/615/617/12HV609/615
4.2
Clock Source modes can be classified as external or
internal.
• External Clock modes rely on external circuitry for
• Internal clock sources are contained internally
The system clock can be selected between external or
internal clock sources via the FOSC<2:0> bits of the
Configuration Word register.
TABLE 4-1:
4.3.2
The External Clock (EC) mode allows an externally
generated logic level as the system clock source. When
operating in this mode, an external clock source is
connected to the OSC1 input and the OSC2 is available
for general purpose I/O. Figure 4-2 shows the pin
connections for EC mode.
The Oscillator Start-up Timer (OST) is disabled when
EC mode is selected. Therefore, there is no delay in
operation after a Power-on Reset (POR) or wake-up
from Sleep. Because the PIC
static, stopping the external clock input will have the
effect of halting the device while leaving all data intact.
Upon restarting the external clock, the device will
resume operation as if no time had elapsed.
FIGURE 4-2:
DS41302D-page 38
Switch From
Sleep/POR
Sleep/POR
Sleep/POR
Note 1:
the clock source. Examples are: Oscillator mod-
ules (EC mode), quartz crystal resonators or
ceramic resonators (LP, XT and HS modes) and
Resistor-Capacitor (RC) mode circuits.
within the Oscillator module. The Oscillator
module has two selectable clock frequencies:
4 MHz and 8 MHz
Clock from
Ext. System
Clock Source Modes
EC MODE
Alternate pin functions are listed in the
Section 1.0 “Device Overview”.
I/O
OSCILLATOR DELAY EXAMPLES
EXTERNAL CLOCK (EC)
MODE OPERATION
OSC1/CLKIN
OSC2/CLKOUT
Switch To
INTOSC
EC, RC
LP, XT, HS
®
PIC
MCU design is fully
®
MCU
(1)
Frequency
125 kHz to 8 MHz
DC – 20 MHz
32 kHz to 20 MHz
4.3
4.3.1
If the Oscillator module is configured for LP, XT or HS
modes, the Oscillator Start-up Timer (OST) counts
1024 oscillations from OSC1. This occurs following a
Power-on Reset (POR) and when the Power-up Timer
(PWRT) has expired (if configured), or a wake-up from
Sleep. During this time, the program counter does not
increment and program execution is suspended. The
OST ensures that the oscillator circuit, using a quartz
crystal resonator or ceramic resonator, has started and
is providing a stable system clock to the Oscillator
module. When switching between clock sources, a
delay is required to allow the new clock to stabilize.
These oscillator delays are shown in Table 4-1.
External Clock Modes
OSCILLATOR START-UP TIMER
(OST)
Oscillator Delay
Oscillator Warm-Up Delay (T
2 instruction cycles
1024 Clock Cycles (OST)
2010 Microchip Technology Inc.
WARM
)
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