PIC16F767-I/SS Microchip Technology, PIC16F767-I/SS Datasheet - Page 396
![IC PIC MCU FLASH 8KX14 28SSOP](/photos/6/81/68119/150-28-ssop_sml.jpg)
PIC16F767-I/SS
Manufacturer Part Number
PIC16F767-I/SS
Description
IC PIC MCU FLASH 8KX14 28SSOP
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F688T-ISL.pdf
(688 pages)
3.PIC16F737-ISP.pdf
(276 pages)
4.PIC16F737-ISP.pdf
(10 pages)
Specifications of PIC16F767-I/SS
Core Size
8-Bit
Program Memory Size
14KB (8K x 14)
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Core Processor
PIC
Speed
20MHz
Connectivity
I²C, SPI, UART/USART
Number Of I /o
25
Program Memory Type
FLASH
Ram Size
368 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 11x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-SSOP
Controller Family/series
PIC16F
No. Of I/o's
25
Ram Memory Size
368Byte
Cpu Speed
20MHz
No. Of Timers
3
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
I3DBF777 - BOARD DAUGHTER ICEPIC3AC164307 - MODULE SKT FOR PM3 28SSOPXLT28SS-1 - SOCKET TRANSITION ICE 28SSOP
Eeprom Size
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
PIC16F767-I/SS
Manufacturer:
MICROCHI
Quantity:
20 000
- PIC16F616T-ISL PDF datasheet
- PIC16F688T-ISL PDF datasheet #2
- PIC16F737-ISP PDF datasheet #3
- PIC16F737-ISP PDF datasheet #4
- Current page: 396 of 688
- Download datasheet (3Mb)
PICmicro MID-RANGE MCU FAMILY
21.7.1
21.8
DS31021A-page 21-12
Faster Conversion - Lower Resolution Trade-off
A/D Operation During Sleep
Not all applications require a result with 8-bits of resolution, but may instead require a faster con-
version time. The A/D module allows users to make the trade-off of conversion speed to resolu-
tion. Regardless of the resolution required, the acquisition time is the same. To speed up the
conversion, the clock source of the A/D module may be switched so that the T
the minimum specified time (see the applicable electrical specification). Once the T
lates the minimum specified time, all the following A/D result bits are not valid (see A/D Conver-
sion Timing in the Electrical Specifications section). The clock sources may only be switched
between the three oscillator versions (cannot be switched from/to RC). The equation to deter-
mine the time before the oscillator can be switched is as follows:
Since the T
ware loop, etc.) to determine when the A/D oscillator may be changed.
comparison of time required for a conversion with 4-bits of resolution, versus the 8-bit resolution
conversion. The example is for devices operating at 20 MHz (The A/D clock is programmed for
32T
The 2T
values.
Example 21-3:
The A/D module can operate during SLEEP mode. This requires that the A/D clock source be set
to RC (ADCS1:ADCS0 = 11). When the RC clock source is selected, the A/D module waits one
instruction cycle before starting the conversion. This allows the SLEEP instruction to be executed,
which eliminates all internal digital switching noise from the conversion. When the conversion is
completed the GO/DONE bit will be cleared, and the result loaded into the ADRES register. If the
A/D interrupt is enabled, the device will wake-up from SLEEP. If the A/D interrupt is not enabled,
the A/D module will then be turned off (to conserve power), although the ADON bit will remain
set.
When the A/D clock source is another clock option (not RC), a SLEEP instruction will cause the
present conversion to be aborted and the A/D module to be turned off, though the ADON bit will
remain set.
Turning off the A/D places the A/D module in its lowest current consumption state.
Note 1: A minimum T
T
T
T
AD
OSC
AD
Note:
Conversion time =
Where: N
OSC
+ N • T
2: If the full 8-bit conversion is required, the A/D clock source should not be changed.
OSC
), and assumes that immediately after 5T
AD
violates the minimum T
For the A/D module to operate in SLEEP, the A/D clock source must be set to RC
(ADCS1:ADCS0 = 11). To perform an A/D conversion in SLEEP, the GO/DONE bit
must be set, followed by the SLEEP instruction.
AD
is based from the device oscillator, the user must use some method (a timer, soft-
+ (10 - N)(2T
4-bit vs. 8-bit Conversion Times
=
AD
time of 1.6 s is required.
T
number of bits of resolution required.
AD
OSC
+ N • T
)
AD
AD
time since the last 4-bits will not be converted to correct
+ (10 - N)(2T
(MHz)
Freq.
20
20
20
AD
, the A/D clock is programmed for 2T
(1)
OSC
)
1.6 s
8.6 s
50 ns
4-bit
1997 Microchip Technology Inc.
Resolution
Example 21-3
AD
17.6 s
time violates
1.6 s
50 ns
8-bit
AD
time vio-
shows a
OSC
.
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