PIC16C64A-20/L Microchip Technology, PIC16C64A-20/L Datasheet - Page 53
![IC MCU OTP 2KX14 PWM 44PLCC](/photos/6/63/66325/150-44-plcc_sml.jpg)
PIC16C64A-20/L
Manufacturer Part Number
PIC16C64A-20/L
Description
IC MCU OTP 2KX14 PWM 44PLCC
Manufacturer
Microchip Technology
Series
PIC® 16Cr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F818-ISO.pdf
(6 pages)
3.PIC16LC62A-04SP.pdf
(337 pages)
4.PIC16C64A-04P.pdf
(8 pages)
Specifications of PIC16C64A-20/L
Core Size
8-Bit
Program Memory Size
3.5KB (2K x 14)
Core Processor
PIC
Speed
20MHz
Connectivity
I²C, SPI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
33
Program Memory Type
OTP
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 6 V
Oscillator Type
External
Operating Temperature
0°C ~ 70°C
Package / Case
44-PLCC
Controller Family/series
PIC16C
No. Of I/o's
33
Ram Memory Size
128Byte
Cpu Speed
20MHz
No. Of Timers
3
No. Of Pwm Channels
1
Embedded Interface Type
I2C, SPI
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
AC164309 - MODULE SKT FOR PM3 44PLCC444-1001 - DEMO BOARD FOR PICMICRO MCUDVA16XL441 - ADAPTER DEVICE ICE 44PLCC309-1040 - ADAPTER 44-PLCC ZIF TO 40-DIP309-1039 - ADAPTER 44-PLCC TO 40-DIPDV007003 - PROGRAMMER UNIVERSAL PROMATE II
Eeprom Size
-
Data Converters
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16C64A-20/L
Manufacturer:
MICROCHIP
Quantity:
181
Company:
Part Number:
PIC16C64A-20/L
Manufacturer:
Microchip Technology
Quantity:
10 000
Part Number:
PIC16C64A-20/L
Manufacturer:
MICREL/麦瑞
Quantity:
20 000
- PIC16F616T-ISL PDF datasheet
- PIC16F818-ISO PDF datasheet #2
- PIC16LC62A-04SP PDF datasheet #3
- PIC16C64A-04P PDF datasheet #4
- Current page: 53 of 337
- Download datasheet (3Mb)
5.2
PORTB is an 8-bit wide bi-directional port. The corre-
sponding data direction register is TRISB. Setting a bit
in the TRISB register puts the corresponding output
driver in a hi-impedance mode. Clearing a bit in the
TRISB register puts the contents of the output latch on
the selected pin(s).
EXAMPLE 5-2:
BCF
CLRF
BSF
MOVLW
MOVWF
Each of the PORTB pins has a weak internal pull-up. A
single control bit can turn on all the pull-ups. This is
performed by clearing bit RBPU (OPTION<7>). The
weak pull-up is automatically turned off when the port
pin is configured as an output. The pull-ups are also
disabled on a Power-on Reset.
Four of PORTB’s pins, RB7:RB4, have an interrupt on
change feature. Only pins configured as inputs can
cause this interrupt to occur (i.e., any RB7:RB4 pin
configured as an output is excluded from the interrupt
on change comparison). The input pins (of RB7:RB4)
are compared with the old value latched on the last
read of PORTB. The “mismatch” outputs of RB7:RB4
are OR’ed together to generate the RB port change
interrupt with flag bit RBIF (INTCON<0>).
Applicable Devices
61 62 62A R62 63 R63 64 64A R64 65 65A R65 66 67
1997 Microchip Technology Inc.
STATUS, RP0
PORTB
STATUS, RP0
0xCF
TRISB
PORTB and TRISB Register
INITIALIZING PORTB
;
; Initialize PORTB by
; clearing output
; data latches
; Select Bank 1
; Value used to
; initialize data
; direction
; Set RB<3:0> as inputs
; RB<5:4> as outputs
; RB<7:6> as inputs
This interrupt can wake the device from SLEEP. The
user, in the interrupt service routine, can clear the inter-
rupt in the following manner:
a)
b)
A mismatch condition will continue to set flag bit RBIF.
Reading PORTB will end the mismatch condition, and
allow flag bit RBIF to be cleared.
This interrupt on mismatch feature, together with soft-
ware configurable pull-ups on these four pins allow
easy interface to a keypad and make it possible for
wake-up on key-depression. Refer to the Embedded
Control Handbook, Application Note, “Implementing
Wake-up on Key Stroke” (AN552) .
The interrupt on change feature is recommended for
wake-up on key depression operation and operations
where PORTB is only used for the interrupt on change
feature. Polling of PORTB is not recommended while
using the interrupt on change feature.
FIGURE 5-3:
Set RBIF
Note:
Data bus
Note 1: I/O pins have diode protection to V
WR TRIS
WR Port
RBPU
RB7:RB6 in serial programming mode
Any read or write of PORTB. This will end the
mismatch condition.
Clear flag bit RBIF.
2: To enable weak pull-ups, set the appropriate TRIS bit(s)
(2)
From other
RB7:RB4 pins
and clear the RPBU bit (OPTION<7>).
For PIC16C61/62/64/65, if a change on the
I/O pin should occur when a read operation
is being executed (start of the Q2 cycle),
then interrupt flag bit RBIF may not get set.
BLOCK DIAGRAM OF THE
RB7:RB4 PINS FOR
PIC16C61/62/64/65
RD TRIS
RD Port
Data Latch
TRIS Latch
D
D
CK
CK
Q
Q
PIC16C6X
Q
Q
Latch
DD
DS30234D-page 53
EN
EN
D
and V
D
TTL
Input
Buffer
SS
V
RD Port
P
.
DD
ST
Buffer
weak
pull-up
I/O
pin
(1)
Related parts for PIC16C64A-20/L
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![PIC16C64A-04/P](/photos/6/61/66192/150-40-dip_tmb.jpg)
Part Number:
Description:
IC MCU OTP 2KX14 PWM 40DIP
Manufacturer:
Microchip Technology
Datasheet:
![PIC16C64A-04I/L](/photos/6/63/66325/150-44-plcc_tmb.jpg)
Part Number:
Description:
IC MCU OTP 2KX14 PWM 44PLCC
Manufacturer:
Microchip Technology
Datasheet:
![PIC16C64A/JW](/photos/6/63/66338/150-40-cdip_tmb.jpg)
Part Number:
Description:
IC MCU EPROM 2KX14 PWM 40CDIP
Manufacturer:
Microchip Technology
Datasheet:
![PIC16C64A-04/L](/photos/6/63/66325/150-44-plcc_tmb.jpg)
Part Number:
Description:
IC MCU OTP 2KX14 PWM 44PLCC
Manufacturer:
Microchip Technology
Datasheet:
![PIC16C64A-04I/P](/photos/6/61/66192/150-40-dip_tmb.jpg)
Part Number:
Description:
IC MCU OTP 2KX14 PWM 40DIP
Manufacturer:
Microchip Technology
Datasheet:
![PIC16C64A-10/P](/photos/6/61/66192/150-40-dip_tmb.jpg)
Part Number:
Description:
IC MCU OTP 2KX14 PWM 40DIP
Manufacturer:
Microchip Technology
Datasheet:
![PIC16C64A-20I/P](/photos/6/61/66192/150-40-dip_tmb.jpg)
Part Number:
Description:
IC MCU OTP 2KX14 PWM 40DIP
Manufacturer:
Microchip Technology
Datasheet:
![PIC16C64A-04/PQ](/photos/6/59/65984/150-44-pqfp_tmb.jpg)
Part Number:
Description:
IC MCU OTP 2KX14 PWM 44-MQFP
Manufacturer:
Microchip Technology
Datasheet:
![PIC16C64A-10/L](/photos/6/63/66325/150-44-plcc_tmb.jpg)
Part Number:
Description:
IC MCU OTP 2KX14 PWM 44PLCC
Manufacturer:
Microchip Technology
Datasheet:
![PIC16C64A-20I/PQ](/photos/6/59/65984/150-44-pqfp_tmb.jpg)
Part Number:
Description:
IC MCU OTP 2KX14 PWM 44-MQFP
Manufacturer:
Microchip Technology
Datasheet:
![PIC16C64A-10I/L](/photos/6/63/66325/150-44-plcc_tmb.jpg)
Part Number:
Description:
IC MCU OTP 2KX14 PWM 44PLCC
Manufacturer:
Microchip Technology
Datasheet:
![PIC16C64A-20E/PQ](/photos/6/59/65984/150-44-pqfp_tmb.jpg)
Part Number:
Description:
IC MCU OTP 2KX14 PWM 44-MQFP
Manufacturer:
Microchip Technology
Datasheet:
![PIC16C64A-20I/L](/photos/6/63/66325/150-44-plcc_tmb.jpg)
Part Number:
Description:
IC MCU OTP 2KX14 PWM 44PLCC
Manufacturer:
Microchip Technology
Datasheet:
![PIC16C64A-20/P](/photos/6/61/66192/150-40-dip_tmb.jpg)
Part Number:
Description:
IC MCU OTP 2KX14 PWM 40DIP
Manufacturer:
Microchip Technology
Datasheet:
![PIC16C64A-10/PQ](/photos/6/59/65984/150-44-pqfp_tmb.jpg)
Part Number:
Description:
IC MCU OTP 2KX14 PWM 44-MQFP
Manufacturer:
Microchip Technology
Datasheet: