PIC12F635-E/P Microchip Technology, PIC12F635-E/P Datasheet - Page 118
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PIC12F635-E/P
Manufacturer Part Number
PIC12F635-E/P
Description
IC MCU FLASH 1KX14 8DIP
Manufacturer
Microchip Technology
Series
PIC® 12Fr
Specifications of PIC12F635-E/P
Core Size
8-Bit
Program Memory Size
1.75KB (1K x 14)
Core Processor
PIC
Speed
20MHz
Peripherals
Brown-out Detect/Reset, POR, WDT
Number Of I /o
5
Program Memory Type
FLASH
Eeprom Size
128 x 8
Ram Size
64 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
8-DIP (0.300", 7.62mm)
Controller Family/series
PIC12
No. Of I/o's
6
Eeprom Memory Size
128Byte
Ram Memory Size
64Byte
Cpu Speed
20MHz
No. Of Timers
2
Processor Series
PIC12F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
64 B
Interface Type
RS- 232, SPI, USB
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
6
Number Of Timers
2
Operating Supply Voltage
2 V to 5.5 V
Maximum Operating Temperature
+ 125 C
Mounting Style
Through Hole
3rd Party Development Tools
52715-96, 52716-328, 52717-734
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, DV164120, DM163029, DV164101, DM163014
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
DM163029 - BOARD PICDEM FOR MECHATRONICSAC162057 - MPLAB ICD 2 HEADER 14DIPACICE0201 - MPLABICE 8P 300 MIL ADAPTER
Data Converters
-
Connectivity
-
Lead Free Status / Rohs Status
Details
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- Download datasheet (4Mb)
PIC12F635/PIC16F636/639
11.31.3
An analog current is available at the LFDATA pin when
the Received Signal Strength Indicator (RSSI) output is
selected for the AFE’s Configuration register. The analog
current is linearly proportional to the input signal strength
(see Figure 11-15).
All timers in the circuit, such as inactivity timer, alarm
timer, and AGC settling time, are disabled during the
RSSI mode. Therefore, the RSSI output is not affected
by the AGC settling time, and available immediately
when the RSSI option is selected. The AFE enters
Active mode immediately when the RSSI output is
selected. The MCU I/O pin (RC3) connected to the
LFDATA pin, must be set to high-impedance state
during the RSSI Output mode.
When the AFE receives an SPI command during the
RSSI output, the RSSI mode is temporary disabled
until the SPI interface communication is completed. It
returns to the RSSI mode again after the SPI interface
communication is completed. The AFE holds the RSSI
mode until another output type is selected (CS low
turns off the RSSI signal). To obtain the RSSI output
for a particular input channel, or to save operating
power, the input channel can be individually enabled
or disabled. If more than one channel is enabled, the
RSSI output is from the strongest signal channel.
There will be no valid output if all three channels are
disabled.
Related AFE Configuration register bits:
• Configuration Register 1 (Register 11-2),
• Configuration Register 2 (Register 11-3),
• Configuration Register 0 (Register 11-1): all bits
DS41232D-page 116
DATOUT<8:7>:
RSSIFET<8>:
Note:
are affected.
bit 8
0
0
1
1
bit 7
RECEIVED SIGNAL STRENGTH
INDICATOR (RSSI) OUTPUT
The pull-down MOSFET option is valid
only when the RSSI output is selected.
The MOSFET is not controllable by users
when Demodulated or Carrier Clock
output option is selected.
0: Demodulated Output
1: Carrier Clock Output
0: RSSI Output
1: RSSI Output
0: Pull-Down MOSFET off
1: Pull-Down MOSFET on.
FIGURE 11-14:
(controlled by Config. 2, bit 8)
RSSI Pull-down MOSFET
RSSI Output Current
RSSIFET
Generator
V
DD
Off
if RSSI active
RSSI OUTPUT PATH
© 2007 Microchip Technology Inc.
RC3/LFDATA/RSSI/CCLK Pin
Current Output
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