PIC12C508A-04I/P Microchip Technology, PIC12C508A-04I/P Datasheet - Page 43
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PIC12C508A-04I/P
Manufacturer Part Number
PIC12C508A-04I/P
Description
IC MCU OTP 512X12 8DIP
Manufacturer
Microchip Technology
Series
PIC® 12Cr
Datasheets
1.PIC12C508A-04SM.pdf
(113 pages)
2.PIC12C508A-04SM.pdf
(6 pages)
3.PIC12C508A-04SM.pdf
(16 pages)
4.PIC12C508A-04SM.pdf
(4 pages)
Specifications of PIC12C508A-04I/P
Program Memory Type
OTP
Program Memory Size
768B (512 x 12)
Package / Case
8-DIP (0.300", 7.62mm)
Core Processor
PIC
Core Size
8-Bit
Speed
4MHz
Peripherals
POR, WDT
Number Of I /o
5
Ram Size
25 x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
PIC12C
Core
PIC
Data Bus Width
8 bit
Data Ram Size
25 B
Maximum Clock Frequency
4 MHz
Number Of Programmable I/os
5
Number Of Timers
1
Operating Supply Voltage
2.5 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
3rd Party Development Tools
52715-96, 52716-328, 52717-734
Development Tools By Supplier
DVMCPA, ICE2000
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
ISPICR1 - ADAPTER IN-CIRCUIT PROGRAMMINGDVMCPA - KIT DVR BOARD EVAL SYSTEM MXDEV1DVA12XP080 - ADAPTER DEVICE FOR MPLAB-ICEAC124001 - MODULE SKT PROMATEII 8DIP/SOIC
Eeprom Size
-
Data Converters
-
Connectivity
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC12C508A-04I/P
Manufacturer:
MAXIM
Quantity:
731
Part Number:
PIC12C508A-04I/P
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Part Number:
PIC12C508A-04I/PVAO
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
8.6.1
The WDT has a nominal time-out period of 18 ms,
(with no prescaler). If a longer time-out period is
desired, a prescaler with a division ratio of up to 1:128
can be assigned to the WDT (under software control)
by writing to the OPTION register. Thus, a time-out
period of a nominal 2.3 seconds can be realized.
These periods vary with temperature, V
part process variations (see DC specs).
Under worst case conditions (V
= Max., max. WDT prescaler), it may take several
seconds before a WDT time-out occurs.
FIGURE 8-12: WATCHDOG TIMER BLOCK DIAGRAM
TABLE 8-6:
N/A
Legend: Shaded boxes = Not used by Watchdog Timer, — = unimplemented, read as ’0’, u = unchanged
Address
1999 Microchip Technology Inc.
WDT PERIOD
OPTION
Name
Note: T0CS, T0SE, PSA, PS2:PS0
SUMMARY OF REGISTERS ASSOCIATED WITH THE WATCHDOG TIMER
Configuration Bit
WDT Enable
Watchdog
are bits in the OPTION register.
Timer
GPWU
Bit 7
From Timer0 Clock Source
(Figure 8-5)
DD
= Min., Temperature
GPPU
Bit 6
DD
and part-to-
T0CS
1
0
Bit 5
PSA
M
U
X
T0SE
Bit 4
Bit 3
PSA
0
8.6.2
The CLRWDT instruction clears the WDT and the
postscaler, if assigned to the WDT, and prevents it
from timing out and generating a device RESET.
The SLEEP instruction resets the WDT and the
postscaler, if assigned to the WDT. This gives the
maximum SLEEP time before a WDT wake-up reset.
Time-out
8 - to - 1 MUX
WDT
MUX
Postscaler
Postscaler
Bit 2
PS2
1
WDT PROGRAMMING CONSIDERATIONS
Bit 1
PS1
PSA
To Timer0 (Figure 8-4)
Bit 0
PS0
PS2:PS0
PIC12C5XX
1111 1111
Power-On
Value on
Reset
DS40139E-page 43
1111 1111
All Other
Value on
Resets