PIC16F636T-I/ML Microchip Technology, PIC16F636T-I/ML Datasheet - Page 111
![IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,LLCC,16PIN,PLASTIC](/photos/6/65/66536/mfg_mcp7386x_qfn_sml.jpg)
PIC16F636T-I/ML
Manufacturer Part Number
PIC16F636T-I/ML
Description
IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,LLCC,16PIN,PLASTIC
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC12F635-ISN.pdf
(234 pages)
3.PIC16F636-ISL.pdf
(8 pages)
4.PIC16F636-ISL.pdf
(4 pages)
Specifications of PIC16F636T-I/ML
Rohs Compliant
YES
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Peripherals
Brown-out Detect/Reset, LVD, POR, WDT
Number Of I /o
11
Program Memory Size
3.5KB (2K x 14)
Program Memory Type
FLASH
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
16-QFN
Processor Series
PIC16F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
128 B
Interface Type
RS- 232, SPI, USB
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
12
Number Of Timers
2
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
52715-96, 52716-328, 52717-734
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, PG164120
Minimum Operating Temperature
- 40 C
On-chip Adc
8 bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
AC164324 - MODULE SKT FOR MPLAB 8DFN/16QFNXLT16QFN1 - SOCKET TRANSITION 14DIP TO 16QFNAC162057 - MPLAB ICD 2 HEADER 14DIP
Eeprom Size
-
Data Converters
-
Connectivity
-
Lead Free Status / Rohs Status
Details
- PIC16F616T-ISL PDF datasheet
- PIC12F635-ISN PDF datasheet #2
- PIC16F636-ISL PDF datasheet #3
- PIC16F636-ISL PDF datasheet #4
- Current page: 111 of 234
- Download datasheet (4Mb)
11.22 Low-Current Sleep Mode
The Sleep command from the microcontroller, via an
SPI Interface command, places the AFE into an ultra
Low-current mode. All circuits including the RF Limiter,
except the minimum circuitry required to retain register
memory and SPI capability, will be powered down to
minimize the AFE current draw. Power-on Reset or any
SPI command, other than Sleep command, is required
to wake the AFE from Sleep.
11.23 Low-Current Standby Mode
The AFE is in Standby mode when no LF signal is
present on the antenna inputs but the AFE is powered
and ready to receive any incoming signals.
11.24 Low-Current Operating Mode
The AFE is in Low-current Operating mode when a LF
signal is present on an LF antenna input and internal
circuitry is switching with the received data.
TABLE 11-4:
© 2007 Microchip Technology Inc.
Configuration Register 0
Configuration Register 1
Configuration Register 2
Configuration Register 3
Configuration Register 4
Configuration Register 5
Configuration Register 6
(Column Parity Register)
Register Name
AFE CONFIGURATION REGISTER PARITY BIT EXAMPLE
Bit 8
1
0
0
0
0
1
1
Bit 7
0
0
0
0
0
0
1
PIC12F635/PIC16F636/639
Bit 6
1
0
0
0
0
0
0
Bit 5
0
0
0
0
0
0
1
11.25 Error Detection of AFE
The AFE’s Configuration registers are volatile memory.
Therefore, the contents of the registers can be
corrupted or cleared by any electrical incidence such
as battery disconnect. To ensure the data integrity, the
AFE has an error detection mechanism using row and
column parity bits of the Configuration register memory
map. The bit 0 of each register is a row parity bit which
is calculated over the eight Configuration bits (from bit
1 to bit 8). The Column Parity Register (Configuration
Register 6) holds column parity bits; each bit is
calculated over the respective columns (Configuration
registers 0 to 5) of the Configuration bits. The STATUS
register is not included for the column parity bit
calculation. Parity is to be odd. The parity bit set or
cleared makes an odd number of set bits. The user
needs to calculate the row and column parity bits using
the contents of the registers and program them. During
operation, the AFE continuously calculates the row and
column parity bits of the configuration memory map. If
a parity error occurs, the AFE lowers the SCLK/ALERT
pin (interrupting the microcontroller section) indicating
the configuration memory has been corrupted or
unloaded and needs to be reprogrammed.
At an initial condition after a Power-On-Reset, the
values of the registers are all clear (default condition).
Therefore, the AFE will issue the parity bit error by
lowering the SCLK/ALERT pin. If user reprograms the
registers with correct parity bits, the SCLK/ALERT pin
will be toggled to logic high level immediately.
The parity bit errors do not change or affect the AFE’s
functional operation.
Table 11-4 shows an example of the register values
and corresponding parity bits.
Bit 4
1
0
0
0
0
0
0
Configuration Register Data
Bit 3
0
0
0
0
0
0
1
Bit 2
0
0
0
0
0
0
1
Bit 1
0
0
0
0
0
0
1
DS41232D-page 109
(Row Parity)
Bit 0
0
1
1
1
1
0
1
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