PIC16F785-I/SO Microchip Technology, PIC16F785-I/SO Datasheet - Page 77

• Manufacturer Part Number: PIC16F785-I/SO
• Description: IC PIC MCU FLASH 2KX14 20SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F785-I/SO

• Program Memory Type: FLASH
• Program Memory Size: 3.5KB (2K x 14)
• Package / Case: 20-SOIC (7.5mm Width)
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 17
• Eeprom Size: 256 x 8
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 14x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 128 B
• Interface Type: RS- 232/USB
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 17
• Number Of Timers: 3
• Operating Supply Voltage: 2 V to 5.5 V
• 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, ICE2000, DV164120, DM163029
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 14-ch x 10-bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT20SO1-1 - SOCKET TRANS ICE 20DIP TO 20SOICXLT18SO-1 - SOCKET TRANSITION 18SOIC 300MILAC162060 - HEADER INTRFC MPLAB ICD2 20PINAC164039 - MODULE SKT PROMATE II 20DIP/SOIC
• Connectivity: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

11.3
A device RESET forces all registers to their RESET
state. This disables both op amps.
11.4
Common AC and DC performance specifications for
the OPA module:
• Common Mode Voltage Range
• Leakage Current
• Input Offset Voltage
• Open Loop Gain
• Gain Bandwidth Product (GBWP)
Common mode voltage range is the specified voltage
range for the OPA+ and OPA- inputs, for which the OPA
module will perform to within its specifications. The
OPA module is designed to operate with input voltages
between 0 and V
voltages greater than V
beyond the normal operating range.
TABLE 11-1:
 2004 Microchip Technology Inc.
11Ch
11Dh
91h
93h
86h,
186h
87h,
187h
Legend: x = unknown, u = unchanged, - = unimplemented, read as ‘0’. Shaded cells are not used for the OPA
Address
Effects of RESET
OPA Module Performance
module.
OPA1CON OPAON
OPA2CON OPAON
ANSEL0
ANSEL1
TRISB
TRISC
Name
DD
REGISTERS ASSOCIATED WITH THE OPA MODULE
-1.4V. Behavior for common mode
TRISC7 TRISC6 TRISC5 TRISC4 TRISC3 TRISC2 TRISC1 TRISC0 1111 1111
TRISB7 TRISB6 TRISB5 TRISB4
ANS7
DD
Bit 7
—
-1.4V, or below 0V, are
ANS6 ANS5 ANS4 ANS3 ANS2 ANS1 ANS0 1111 1111 1111 1111
Bit 6
—
—
—
Bit 5
—
—
—
Preliminary
Bit 4
—
—
—
ANS11 ANS10 ANS9 ANS8 ---- 1111 ---- 1111
Bit 3
—
—
—
Leakage current is a measure of the small source or
sink currents on the OPA+ and OPA- inputs. To mini-
mize the effect of leakage currents, the effective imped-
ances connected to the OPA+ and OPA- inputs should
be kept as small as possible and equal.
Input offset voltage is a measure of the voltage differ-
ence between the OPA+ and OPA- inputs in a closed
loop circuit with the OPA in its linear region. The offset
voltage will appear as a DC offset in the output equal to
the input offset voltage, multiplied by the gain of the
circuit. The input offset voltage is also affected by the
common mode voltage.
Open loop gain is the ratio of the output voltage to the
differential input voltage, (OPA+) - (OPA-). The gain is
greatest at DC and falls off with frequency.
Gain Bandwidth Product or GBWP is the frequency
at which the open loop gain falls off to 0 dB.
Bit 2
—
—
—
Bit 1
—
—
—
Bit 0
—
—
—
PIC16F785
0--- ---- 0--- ----
0--- ---- 0--- ----
POR, BOR
1111 ----
Value on:
DS41249A-page 75
1111 1111
1111 ----
Value on
RESETS
all other