PIC14000-04I/SS Microchip Technology, PIC14000-04I/SS Datasheet - Page 32

• Manufacturer Part Number: PIC14000-04I/SS
• Description: IC, 8BIT MCU, PIC14, 4MHZ, SSOP-28
• Manufacturer: Microchip Technology

Specifications of PIC14000-04I/SS

• Controller Family/series: PIC14
• No. Of I/o's: 22
• Ram Memory Size: 192Byte
• Cpu Speed: 4MHz
• No. Of Timers: 2
• Interface: I2C
• Digital Ic Case Style: SSOP
• Core Size: 8 Bit
• Program Memory Size: 4096 X 14
• Embedded Interface Type: I2C
• Rohs Compliant: Yes
• Processor Series: PIC14000
• Core: PIC
• Data Bus Width: 8 bit
• Program Memory Type: EPROM
• Data Ram Size: 192 B
• Interface Type: SPI, UART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 22
• Number Of Timers: 1
• Operating Supply Voltage: 2.7 V to 6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SSOP-28
• Development Tools By Supplier: ICE2000
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 14 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIC14000
5.3
PORTD is an 8-bit port that may be used for general
purpose I/O. Four pins can be configured as analog
inputs.
FIGURE 5-8:
FIGURE 5-9:
DS40122B-page 32
PORTD and TRISD
1.
2.
I/O pins have protection diodes to VDD and VSS.
If CMBOE (CMCON<5>) is set to ‘1’, RD2 becomes CMPB,
RD3 becomes REFB, ignoring the PORTD<3:2> data and
TRISD<3:2> register settings.
BLOCK DIAGRAM OF PORTD<7:4> PINS
BLOCK DIAGRAM OF PORTD<3:2> PINS
PORTD
TRISD
Read
PortD
PORTD
Write
Write
Data
TRISD
Bus
Write
Write
Data
Bus
Note: I/O pins have protection diodes to V
To A/D Converter
D
CK Q
D
CK Q
Read
PORTD
TRISD
Read
D
Q
CK Q
D
Q
CK Q
TRISD
Read
Q
Q
Preliminary
Q
Analog Input Mode
Schmitt Trigger
Input Buffer
EN
D
Q
V
SS
EN
V
P
N
Schmitt Trigger
D
DD
Input Buffer
DD
I/O
Pin
and V
Read PORTD
SS
.
I/O
Pin
1996 Microchip Technology Inc.