PIC16C781T-I/SO Microchip Technology, PIC16C781T-I/SO Datasheet - Page 117

• Manufacturer Part Number: PIC16C781T-I/SO
• Description: IC MCU CMOS 8BIT 1K 20MHZ 20SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Cr

Specifications of PIC16C781T-I/SO

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 13
• Program Memory Size: 1.75KB (1K x 14)
• Program Memory Type: OTP
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 8x8b; D/A 1x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-SOIC (7.5mm Width)
• For Use With: AC164028 - MODULE SKT PROMATEII 20SOIC/DIP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Connectivity: -
• Other names: PIC16C781TI/SO

13.4
A device RESET forces all registers to their RESET
state. This disables the PSMC and resets its outputs to
digital inputs. It is good design practice to include a fail-
safe resistor bias in all power transistor drive circuitry.
The fail-safe circuit should disable the power device
when the PSMC output drive transistor is held tri-state.
This protects the power device and its associated cir-
cuitry from the stress of prolonged operation without
feedback.
TABLE 13-6:
86h,186h TRISB
11Ah
119h
111h
112h
Legend: x = unknown, u = unchanged, - = unimplemented, read as '0'. Shaded cells are not used for PSMC.
Address
2001 Microchip Technology Inc.
Effects of SLEEP and RESET
CM2CON0
CM1CON0
PSMCCON0 SMCCL1 SMCCL0 MINDC1 MINDC0 MAXDC1 MAXDC0
PSMCCON1 SMCON S1APOL S1BPOL
Name
REGISTERS ASSOCIATED WITH THE PSMC
PORTB Data Direction Register
C2ON
C1ON
Bit 7
C2OUT
C1OUT
Bit 6
C2OE
C1OE
Bit 5
C2POL
C1POL
Bit 4
Preliminary
—
SCEN
C2SP
C1SP
Bit 3
Placing the PIC16C781/782 into SLEEP mode will stop
the main oscillator for the microcontroller. The PSMC
derives its timing from the main oscillator. Therefore,
operation of the PSMC will halt when the microcontrol-
ler enters SLEEP mode. To prevent damage, the out-
puts of the PSMC are gated so that they are driven to
their inactive state whenever the device enters SLEEP
mode. When the microcontroller wakes up, the PSMC
resumes operation per its previously programmed con-
figuration.
SMCOM PWM/PSM SMCCS 000- 0000 000- 0000
Bit 2
C2R
C1R
C2CH1
C1CH1
PIC16C781/782
Bit 1
DC1
C2CH0 0000 0000 0000 0000
C1CH0 0000 0000 0000 0000
Bit 0
DC0
1111 1111 1111 1111
0000 0000 0000 0000
Value on:
DS41171A-page 115
POR,
BOR
Value on
all other
RESETS