PIC16HV540-04I/SS Microchip Technology, PIC16HV540-04I/SS Datasheet - Page 40

• Manufacturer Part Number: PIC16HV540-04I/SS
• Description: IC MCU OTP 512X12 20SSOP
• Manufacturer: Microchip Technology
• Series: PIC® 16Cr

Specifications of PIC16HV540-04I/SS

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 4MHz
• Peripherals: Brown-out Detect/Reset, POR, WDT
• Number Of I /o: 12
• Program Memory Size: 768B (512 x 12)
• Program Memory Type: OTP
• Ram Size: 25 x 8
• Voltage - Supply (vcc/vdd): 3.5 V ~ 15 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-SSOP
• Processor Series: PIC16H
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 25 B
• Maximum Clock Frequency: 4 MHz
• Number Of Programmable I/os: 12
• Number Of Timers: 8
• Operating Supply Voltage: 3.5 V to 15 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• For Use With: 309-1016 - ADAPTER 20-SSOP TO 18-DIP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Connectivity: -
• Lead Free Status / Rohs Status: Details

PIC16HV540
voltage may approach the maximum value. Again this
condition should be considered when interfacing to
external circuitry.
In addition, the voltage level applied to the external V
pin and operational temperature affects the internal
regulation voltage.
FIGURE 7-12: WATCHDOG TIMER BLOCK DIAGRAM
TABLE 7-6:
DS40197B-page 40
Legend:
Address
N/A
N/A
Shaded boxes = Not used by Watchdog Timer, — = unimplemented, read as '0', u = unchanged, x = unknown.
OPTION2
OPTION
Name
SUMMARY OF REGISTERS ASSOCIATED WITH THE WATCHDOG TIMER
WDTEN
Configuration
bit
Bit 7
—
—
Watchdog
Timer
Bit 6
—
—
Note: T0CS, T0SE, PSA, PS<2:0>
SWDTEN bit
PCWU SWDTEN
T0CS
Bit 5
From TMR0 Clock Source
are bits in the OPTION register.
T0SE
Bit 4
0
1
Bit 3
PSA
RL
Preliminary
DD
PSA
M
U
X
Bit 2
PS2
SL
BODL
Bit 1
PS1
0
BODEN
Time-out
Bit 0
PS0
8 - to - 1 MUX
MUX
WDT
Postscaler
Postscaler
--11 1111 --11 1111 --11 1111 --11 1111
Power-On
--UU UUU --uu uuuu --uu uuuu --xx xxxx
1
Value on
Reset
PSA
To TMR0
WDT Reset
MCLR and
Value on
2000 Microchip Technology Inc.
PS<2:0>
Value on
Wake-up
Change
on Pin
Brown-out
Value on
Reset