PIC16C433-E/SO Microchip Technology, PIC16C433-E/SO Datasheet - Page 42
PIC16C433-E/SO
Manufacturer Part Number
PIC16C433-E/SO
Description
IC MCU CMOS 8BIT 10MHZ 2K 18SOIC
Manufacturer
Microchip Technology
Series
PIC® 16Cr
Specifications of PIC16C433-E/SO
Core Processor
PIC
Core Size
8-Bit
Speed
10MHz
Connectivity
LIN (Local Interconnect Network)
Peripherals
POR, WDT
Number Of I /o
5
Program Memory Size
3.5KB (2K x 14)
Program Memory Type
OTP
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 4x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
18-SOIC (7.5mm Width)
For Use With
AC164030 - MODULE SKT PROMATEII 28DIP/SOIC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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PIC16C433
7.3
An 8-bit counter is available as a prescaler for the
Timer0 module, or as a postscaler for the Watchdog
Timer, respectively (Figure 7-6). For simplicity, this
counter is being referred to as “prescaler” throughout
this data sheet. Note that there is only one prescaler
available which is mutually exclusively shared between
the Timer0 module and the Watchdog Timer. Thus, a
prescaler assignment for the Timer0 module means
that there is no prescaler for the Watchdog Timer, and
vice-versa.
FIGURE 7-6:
DS41139B-page 40
GP2/T0CKI/
AN2/INT
CLKOUT (= F
WDT Enable bit
Watchdog
Timer
Prescaler
Note: T0CS, T0SE, PSA, PS<2:0> are (OPTION<5:0>).
OSC
BLOCK DIAGRAM OF THE TIMER0/WDT PRESCALER
/4)
T0SE
0
1
PSA
M
U
X
0
1
T0CS
M
U
X
0
8-bit Prescaler
8 - to - 1MUX
Timeout
8
M U X
Preliminary
WDT
1
0
1
PSA
M
U
X
The PSA and PS<2:0> bits (OPTION<3:0>) determine
the prescaler assignment and prescale ratio.
When assigned to the Timer0 module, all instructions
writing to the TMR0 register (i.e., CLRF 1, MOVWF 1,
BSF
assigned to WDT, a CLRWDT instruction will clear the
prescaler along with the Watchdog Timer. The pres-
caler is not readable or writable.
PSA
1,x...., etc.) will clear the prescaler. When
PS<2:0>
Cycles
SYNC
2
2002 Microchip Technology Inc.
TMR0 reg
Data Bus
8
Set Flag bit T0IF
on Overflow
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