PIC16F194X/16LF194X
64-Pin 8-Bit Flash Microcontroller Product Brief
High-Performance RISC CPU:
• Only 49 Instructions to Learn
• Operating Speed:
- DC – 32 MHz clock input
- DC – 125 ns instruction cycle
• Interrupt Capability with Automatic Context
Saving
• 16-Level Deep Hardware Stack with Optional
Overflow/Underflow Reset
• Direct, Indirect and Relative Addressing modes:
- Two full 16-bit File Select Registers (FSRs)
- FSRs can read program and data memory
Peripheral Features:
• Integrated LCD Controller:
- Up to 184 segments
- Variable clock input
- Contrast control
- Internal voltage reference selections
• Up to 53 I/O Pins and 1 Input-only Pin:
- High current sink/source for LED drivers
- Individually programmable interrupt-on-
change pins
- Individually programmable weak pull-ups
• Timer0: 8-Bit Timer/Counter with 8-Bit
Programmable Prescaler
• Enhanced Timer1:
- 16-bit timer/counter with prescaler
- External Gate Input mode
- Dedicated low-power 32 kHz oscillator driver
• Timer2, 4, 6: 8-Bit Timer/Counter with 8-Bit Period
Register, Prescaler and Postscaler
• Two Capture/Compare/PWM modules (CCP):
- Software selectable time bases
• Three Enhanced Capture, Compare, PWM
modules (ECCP):
- Software selectable time bases
- Auto-shutdown and auto-restart
- PWM steering
• Two Master Synchronous Serial Ports (MSSP)
with SPI and I
2
C
TM
with:
- 7-bit address masking
- SMBus/PMBus
TM
compatibility
• Two Enhanced Universal Synchronous Asynchro-
nous Receiver Transmitters (EUSART):
- RS-232, RS-485 and LIN compatible
- Auto-Baud Detect
- Auto-wake-up on start
• SR Latch (Integrated 555 Timer):
- Multiple Set/Reset input options
• Analog-to-Digital Converter (ADC):
- 10-bit resolution
- Up to 17 channels
• 3 Comparators:
- Rail-to-rail inputs/outputs
- Power mode control
- Software controllable hysteresis
• Voltage Reference module:
- Fixed Voltage Reference (FVR) with 1.024V,
2.048V and 4.096V output levels
- 5-bit rail-to-rail resistive DAC with positive
and negative reference selection
• mTouch™ Oscillator Module
- 17 channels for button, sensor, or slider input
Special Microcontroller Features:
• Precision Internal Oscillator:
- Factory calibrated to ±1%, typical
- Software selectable frequency range from
32 MHz to 31 kHz
• 31 kHz Low-Power Internal Oscillator
• External Oscillator Block with:
- 4 crystal/resonator modes up to 32 MHz
- 3 external clock modes up to 32 MHz
• 4x Phase Locked Loop (PLL)
• Fail-Safe Clock Monitor
• Two-Speed Start-up
• Power-Saving Sleep mode
• Power-on Reset (POR)
• Power-up Timer (PWRT)
• Oscillator Start-up Timer (OST)
• Brown-out Reset (BOR) with Selectable Trip Point
• Extended Watch-Dog Timer (WDT)
• In-Circuit Serial Programming™ (ICSP™) via two
pins
• In-Circuit Debug (ICD) via Two Pins
• Enhanced Low-Voltage Programming (LVP)
• Operating Voltage Range:
- 1.8V to 3.6V (PIC16LF194X)
- 1.8V to 5.5V (PIC16F194X)
• Programmable Code Protection
• Self-Programmable under Software Control
Low-Power Features:
• Standby Current (PIC16LF194X):
- 100 nA @ 1.8V, typical
• Operating Current (PIC16LF194X):
- 150
μA
@ 1 MHz, 1.8V, typical
• Low-Power Watchdog Timer Current
(PIC16LF194X):
- 1.0
μA
@ 1.8V, typical
©
2008 Microchip Technology Inc.
Advance Information
DS41366A-page 1
PIC16F194X/16LF194X
TABLE 1:
Device
FAMILY TYPES
Program
Data
Memory
SRAM
10-bit A/D
EEPROM
I/Os
Flash
(bytes)
(ch)
(bytes)
(words)
8192
8192
16384
16384
256
256
256
256
512
512
1024
1024
54
54
54
54
17
17
17
17
Timers
8/16-bit
LCD
I
2
C™ CCP/
segments/
EUSART
and SPI ECCP
commons
2
2
2
2
2
2
2
2
2/3
2/3
2/3
2/3
46/4
46/4
46/4
46/4
PIC16F1946
PIC16LF1946
PIC16F1947
PIC16LF1947
4/1
4/1
4/1
4/1
FIGURE 1:
64-PIN TQFP PACKAGE DIAGRAM FOR PIC16F1946/1947
RD6/P1B/SEG6/SCK2/SCL2
RD7/SEG7/SS2
RD5/P1C/SEG5/SDI2/SDA2
RE6/P1B/COM3
RE7/CCP2/P2A/SEG31
RE3/P3C/COM0
RE4/P3B/COM1
RE5/P1C/COM2
RD0/P2D/SEG0
V
DD
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
VLCD2/P2C/RE1
VLCD1/P2D/RE0
SEG42/P3A/CCP3/RG0
SEG43/C3OUT/CPS15/AN15/TX2/CK2/RG1
SEG44/C3IN+/CPS14/AN14/RX2/DT2/RG2
SEG45/P3D/CCP4/C3IN0-/CPS13/AN13/RG3
RD4/P3B/SEG4/SDO2
TQFP
RE2/P2B/VLCD3
RD1/P2C/SEG1
RD2/P2B/SEG2
RD3/P3C/SEG3
V
SS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
RB0/INT/SRI/FLT0/SEG30
RB1/SEG8
RB2/SEG9
RB3/SEG10
RB4/SEG11
RB5/T1G/SEG29
RB6/SEG38/ICSPCLK/ICDCLK
V
SS
RA6/OSC2/CLKOUT/SEG36
RA7/OSC1/CLKIN/SEG37
V
DD
RB7/SEG39/ICSPDAT/ICDCLK
RC5/SDO1/SEG12
RC4/SDI1/SDA1/SEG16
RC3/SCK1/SCL1/SEG17
RC2/CCP1/P1A/SEG13
V
PP
/MCLR/RG5
SEG26/P1D/CCP5/C3IN1-/CPS12/AN12/RG4
PIC16F194X/
PIC16LF194X
V
SS
V
CA
(1)
P
SEG25/SS1/C123IN3-/CPS5/AN5/RF7
SEG24/C1IN+/CPS11/AN11/RF6
SEG23/DACOUT/C12IN1-/CPS10/AN10/RF5
SEG22/C2IN+/CPS9/AN9/RF4
SEG21/C123IN2-/CPS8/AN8/RF3
SEG20/SRQ/C1OUT/CPS7/AN7/RF2
SEG19/SRNQ/C2OUT/CPS6/AN6/RF1
SEG41/C12IN0-/CPS16/AN16/RF0
SEG14/T0CKI/RA4
SEG32/CCP2/P2A/T1OSI/RC1
AV
SS
SEG35/CPS3/V
REF
+/AN3/RA3
SEG34/CPS2/V
REF
-/AN2/RA2
SEG27/CK1/TX1/RC6
SEG15/CPS4/AN4/RA5
Legend:
Note 1:
Pin functions in bold can be redirected via software.
PIC16F194X devices only.
DS41366A-page 2
Advance Information
SEG40/T1CKI/T1OSO/RC0
SEG18/CPS1/AN1/RA1
SEG33/CPS0/AN0/RA0
SEG28/DT1/RX1/RC7
AV
DD
V
SS
V
DD
©
2008 Microchip Technology Inc.
PIC16F194X/16LF194X
TABLE 2:
64-Pin TQFP
I/O
64-PIN DEVICE ALLOCATION TABLE (PIC16F1946/1947)
Comparator
Cap Sense
SR Latch
EUSART
Interrupt
Pull-up
Timers
MSSP
Basic
—
—
—
—
—
—
OSC2/
CLKOUT
OSC1/
CLKIN
—
—
—
—
—
—
ICSPCLK/
ICDCLK
ICSPDAT/
ICDDAT
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
CCP
LCD
SEG33
SEG18
SEG34
SEG35
SEG14
SEG15
SEG36
SEG37
SEG30
SEG8
SEG9
SEG10
SEG11
SEG29
SEG38
SEG39
SEG40
SEG32
SEG13
SEG17
SEG16
SEG12
SEG27
SEG28
SEG0
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
VLCD1
VLCD2
VLCD3
COM0
COM1
COM2
COM3
SEG31
A/D
AN0
AN1
AN2/
V
REF
-
AN3/
V
REF
+
—
AN4
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
RA0
RA1
RA2
RA3
RA4
RA5
RA6
RA7
RB0
RB1
RB2
RB3
RB4
RB5
RB6
RB7
RC0
RC1
RC2
RC3
RC4
RC5
RC6
RC7
RD0
RD1
RD2
RD3
RD4
RD5
RD6
RD7
RE0
RE1
RE2
RE3
RE4
RE5
RE6
RE7
Note 1:
2:
24
23
22
21
28
27
40
39
48
47
46
45
44
43
42
37
30
29
33
34
35
36
31
32
58
55
54
53
52
51
50
49
2
1
64
63
62
61
60
59
CPS0
CPS1
CPS2
CPS3
—
CPS4
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
SRI
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
T0CKI
—
—
—
—
—
—
—
—
T1G
—
—
T1OSO/
T1CKI
T1OSI
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
FLT0
—
—
—
—
—
—
—
—
CCP2
(1)
/
P2A
(1)
CCP1/
P1A
—
—
—
—
—
P2D
(1)
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
TX1/CK1
RX1/DT1
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
SCK1/
SCL1
SDI1/
SDA1
SDO1
—
—
—
—
—
—
SDO2
SDI2/
SDA2
SCK2/
SCL2
SS2
—
—
—
—
—
—
—
—
INT/
IOC
IOC
IOC
IOC
IOC
IOC
IOC
IOC
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Y
Y
Y
Y
Y
Y
Y
Y
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
P2C
(1)
P2B
(1)
P3C
(1)
P3B
(1)
P1C
(1)
P1B
(1)
—
P2D
(1)
P2C
(1)
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
P2B
(1)
P3C
(1)
P3B
(1)
P1C
(1)
P1B
P2A
(1)
CCP2
(1)
/
(1)
Pin functions in bold can be redirected via software.
Weak pull-up always enabled when MCLR is enabled, otherwise the pull-up is under user control.
©
2008 Microchip Technology Inc.
Advance Information
DS41366A-page 3
PIC16F194X/16LF194X
64-Pin TQFP
Comparator
Cap Sense
SR Latch
EUSART
Interrupt
Pull-up
Timers
MSSP
Basic
—
—
—
—
—
—
—
—
—
—
—
—
—
MCLR/V
PP
V
DD
V
SS
AV
DD
AV
SS
V
CAP
CCP
LCD
SEG41
SEG19
SEG20
SEG21
SEG22
SEG23
SEG24
SEG25
SEG42
SEG43
SEG44
—
—
—
—
SEG45
SEG26
—
—
A/D
AN16
AN6
AN7
AN8
AN9
AN10
AN11
AN5
—
AN15
AN14
AN13
AN12
—
—
I/O
RF0
RF1
RF2
RF3
RF4
RF5
RF6
RF7
RG0
RG1
RG2
RG3
RG4
RG5
V
DD
18
17
16
15
14
13
12
11
3
4
5
6
8
7
26,
38,
57
9,
25,
41,
56
19
20
10
CPS16
CPS6
CPS7
CPS8
CPS9
CPS10
CPS11
CPS5
—
CPS15
CPS14
CPS13
CPS12
—
—
C12IN0-
C2OUT
C1OUT
C123IN2-
C2IN+
C12IN1-
DACOUT
C1IN+
C123IN3-
—
C3OUT
C3IN+
C3IN0-
C3IN1-
—
—
—
SRNQ
SRQ
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
TX2/CK2
RX2/DT2
—
—
—
—
—
—
—
—
—
—
—
SS1
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Y
(2)
—
—
—
—
—
—
—
—
—
—
—
—
CCP3
P3A
—
—
CCP4
P3D
CCP5
P1D
—
—
V
SS
—
—
—
—
—
—
—
—
—
—
—
AV
DD
AV
SS
V
CAP
Note 1:
2:
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Pin functions in bold can be redirected via software.
Weak pull-up always enabled when MCLR is enabled, otherwise the pull-up is under user control.
DS41366A-page 4
Advance Information
©
2008 Microchip Technology Inc.
Note the following details of the code protection feature on Microchip devices:
•
•
Microchip products meet the specification contained in their particular Microchip Data Sheet.
Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the
intended manner and under normal conditions.
There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data
Sheets. Most likely, the person doing so is engaged in theft of intellectual property.
Microchip is willing to work with the customer who is concerned about the integrity of their code.
Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not
mean that we are guaranteeing the product as “unbreakable.”
•
•
•
Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our
products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts
allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.
Information contained in this publication regarding device
applications and the like is provided only for your convenience
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
MICROCHIP MAKES NO REPRESENTATIONS OR
WARRANTIES OF ANY KIND WHETHER EXPRESS OR
IMPLIED, WRITTEN OR ORAL, STATUTORY OR
OTHERWISE, RELATED TO THE INFORMATION,
INCLUDING BUT NOT LIMITED TO ITS CONDITION,
QUALITY, PERFORMANCE, MERCHANTABILITY OR
FITNESS FOR PURPOSE. Microchip disclaims all liability
arising from this information and its use. Use of Microchip
devices in life support and/or safety applications is entirely at
the buyer’s risk, and the buyer agrees to defend, indemnify and
hold harmless Microchip from any and all damages, claims,
suits, or expenses resulting from such use. No licenses are
conveyed, implicitly or otherwise, under any Microchip
intellectual property rights.
Trademarks
The Microchip name and logo, the Microchip logo, Accuron,
dsPIC, K
EE
L
OQ
, K
EE
L
OQ
logo, MPLAB, PIC, PICmicro,
PICSTART, rfPIC, SmartShunt and UNI/O are registered
trademarks of Microchip Technology Incorporated in the
U.S.A. and other countries.
FilterLab, Linear Active Thermistor, MXDEV, MXLAB,
SEEVAL, SmartSensor and The Embedded Control Solutions
Company are registered trademarks of Microchip Technology
Incorporated in the U.S.A.
Analog-for-the-Digital Age, Application Maestro, CodeGuard,
dsPICDEM, dsPICDEM.net, dsPICworks, dsSPEAK, ECAN,
ECONOMONITOR, FanSense, In-Circuit Serial
Programming, ICSP, ICEPIC, Mindi, MiWi, MPASM, MPLAB
Certified logo, MPLIB, MPLINK, mTouch, PICkit, PICDEM,
PICDEM.net, PICtail, PIC
32
logo, PowerCal, PowerInfo,
PowerMate, PowerTool, REAL ICE, rfLAB, Select Mode, Total
Endurance, WiperLock and ZENA are trademarks of
Microchip Technology Incorporated in the U.S.A. and other
countries.
SQTP is a service mark of Microchip Technology Incorporated
in the U.S.A.
All other trademarks mentioned herein are property of their
respective companies.
© 2008, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
Printed on recycled paper.
Microchip received ISO/TS-16949:2002 certification for its worldwide
headquarters, design and wafer fabrication facilities in Chandler and
Tempe, Arizona; Gresham, Oregon and design centers in California
and India. The Company’s quality system processes and procedures
are for its PIC
®
MCUs and dsPIC
®
DSCs, K
EE
L
OQ
®
code hopping
devices, Serial EEPROMs, microperipherals, nonvolatile memory and
analog products. In addition, Microchip’s quality system for the design
and manufacture of development systems is ISO 9001:2000 certified.
©
2008 Microchip Technology Inc.
Advance Information
DS41366A-page 5
嵌入式系统
