PIC16F946-E/PT Microchip Technology, PIC16F946-E/PT Datasheet - Page 213

• Manufacturer Part Number: PIC16F946-E/PT
• Description: Microcontroller
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F946-E/PT

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, POR, PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 14KB (8K x 14)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 336 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 64-TFQFP
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 352 B
• Interface Type: SSP, I2C, AUSART, SPI
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 53
• Number Of Timers: 3
• Maximum Operating Temperature: + 125 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, MA160011
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: MA160011 - DAUGHTER BOARD PICDEM LCD 16F91X
• Lead Free Status / Rohs Status: Details

16.11 In-Circuit Debugger
The PIC16F946-ICD can be used in any of the package
types. The device will be mounted on the target appli-
cation board, which in turn has a 3 or 4 wire connection
to the ICD tool.
When the debug bit in the Configuration Word
(CONFIG<12>) is programmed to a ‘0’, the In-Circuit
Debugger functionality is enabled. This function allows
simple debugging functions when used with MPLAB
ICD 2. When the microcontroller has this feature
enabled, some of the resources are not available for
general use. See Table 16-9 for more detail.
TABLE 16-9:
© 2005 Microchip Technology Inc.
Legend: TTL = TTL input buffer, ST = Schmitt Trigger input buffer, P = Power, HV = High Voltage
Note: The user’s application must have the
10, 19, 38, 57
9, 20, 41, 56
Pin
24
23
36
26
25
circuitry
functionality. Once the ICD circuitry is
enabled, normal device pin functions on
RB6/ICSPCLK/ICDCK/SEG14
RB7/ICSPDAT/ICDDAT/SEG13 will not be
usable. The ICD circuitry uses these pins for
communication with the ICD2 external
debugger.
PIC16F946-ICD PIN DESCRIPTIONS
required
MCLR/V
ICDDATA
ICDCLK
Name
AV
AV
V
V
DD
SS
to
DD
DD
PP
support
ICD
Type
and
TTL
HV
ST
Preliminary
P
P
P
P
®
Pull-up
For more information, see “Using MPLAB
(DS51265),
(www.microchip.com).
16.11.1 ICD PINOUT
The devices in the PIC16F946 device carries the
circuitry for the In-Circuit Debugger on-chip and on
existing device pins. This eliminates the need for a
separate die or package for the ICD device. The pinout
for the ICD device is the same as the devices (see
Section 1.0 “Device Overview” for complete pinout
and pin descriptions). Table 16-9 shows the location
and function of the ICD related pins on the 28 and 40
pin devices.
—
—
—
—
—
—
—
In Circuit Debugger Bidirectional data
In Circuit Debugger Bidirectional clock
Programming voltage
available
on
Description
PIC16F946
Microchip’s
DS41265A-page 211
web
®
ICD 2”
site