PIC16F628A-I/ML Microchip Technology, PIC16F628A-I/ML Datasheet - Page 37

• Manufacturer Part Number: PIC16F628A-I/ML
• Description: IC MCU FLASH 2KX14 EEPROM 28QFN
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F628A-I/ML

• Core Size: 8-Bit
• Program Memory Size: 3.5KB (2K x 14)
• Core Processor: PIC
• Speed: 20MHz
• Connectivity: UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 16
• Program Memory Type: FLASH
• Eeprom Size: 128 x 8
• Ram Size: 224 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
• Controller Family/series: PIC16F
• No. Of I/o's: 16
• Eeprom Memory Size: 128Byte
• Ram Memory Size: 224Byte
• Cpu Speed: 20MHz
• No. Of Timers: 3
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 224 B
• Interface Type: SCI, USART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 16
• Number Of Timers: 1 x 16 bit
• 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, DM163014, DM164120-4
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC164324 - MODULE SKT FOR MPLAB 8DFN/16QFNXLT28QFN3 - SOCKET TRAN ICE 18DIP/28QFNI3DBF648 - BOARD DAUGHTER ICEPIC3AC164033 - ADAPTER 28QFN TO 18DIPAC162053 - HEADER INTERFACE ICD,ICD2 18DIPDV007003 - PROGRAMMER UNIVERSAL PROMATE II
• Data Converters: -
• Lead Free Status / Rohs Status: Details

TABLE 5-1:
TABLE 5-2:
© 2009 Microchip Technology Inc.
RA0/AN0
RA1/AN1
RA2/AN2/V
RA3/AN3/CMP1
RA4/T0CKI/CMP2
RA5/MCLR/V
RA6/OSC2/CLKOUT
RA7/OSC1/CLKIN
Legend:
05h
85h
1Fh
9Fh
Legend:
Note 1:
Address
Name
TTL = TTL Input
PORTA
TRISA
CMCON
VRCON
— = Not used
- = Unimplemented locations read as ‘0’, u = unchanged, x = unknown, q = value depends on condition. Shaded cells
are not used for PORTA.
MCLRE configuration bit sets RA5 functionality.
REF
O = Output
Name
PP
PORTA FUNCTIONS
SUMMARY OF REGISTERS ASSOCIATED WITH PORTA
TRISA7 TRISA6 TRISA5 TRISA4 TRISA3 TRISA2 TRISA1 TRISA0 1111 1111
C2OUT C1OUT
VREN
Bit 7
RA7
Function
CLKOUT
CLKIN
CMP1
T0CKI
CMP2
MCLR
OSC2
OSC1
V
AN0
AN1
RA2
AN2
AN3
RA5
RA0
RA1
RA3
RA4
RA6
RA7
V
REF
PP
VROE
Bit 6
RA6
Input
XTAL
Type
AN
AN
AN
AN
HV
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
—
—
—
—
—
RA5
C2INV
Bit 5
VRR
CMOS = CMOS Output
I
OD
(1)
Output
CMOS
CMOS
CMOS
CMOS
CMOS
CMOS
CMOS
CMOS
XTAL
C1INV
Type
Bit 4
RA4
OD
OD
AN
—
—
—
—
—
—
—
—
—
—
—
= Input
= Open Drain Output
PIC16F627A/628A/648A
Bidirectional I/O port
Analog comparator input
Bidirectional I/O port
Analog comparator input
Bidirectional I/O port
Analog comparator input
V
Bidirectional I/O port
Analog comparator input
Comparator 1 output
Bidirectional I/O port. Output is open drain type.
External clock input for TMR0 or comparator output
Comparator 2 output
Input port
Master clear. When configured as MCLR, this pin is an
active low Reset to the device. Voltage on MCLR/V
not exceed V
Programming voltage input
Bidirectional I/O port
Oscillator crystal output. Connects to crystal resonator in
Crystal Oscillator mode.
In RC or INTOSC mode. OSC2 pin can output CLKOUT,
which has 1/4 the frequency of OSC1.
Bidirectional I/O port
Oscillator crystal input. Connects to crystal resonator in
Crystal Oscillator mode.
External clock source input. RC biasing pin.
Bit 3
RA3
VR3
CIS
REF
output
Bit 2
CM2
RA2
VR2
DD
during normal device operation.
Bit 1
CM1
RA1
VR1
Description
P
ST = Schmitt Trigger Input
AN = Analog
Bit 0
RA0
CM0
VR0
= Power
xxxx 0000
0000 0000
000- 0000
Value on
POR
DS40044G-page 37
qqqu 0000
1111 1111
0000 0000
000- 0000
All Other
Value on
Resets
PP
must