PIC16F628A-E/SO Microchip Technology, PIC16F628A-E/SO Datasheet - Page 35

• Manufacturer Part Number: PIC16F628A-E/SO
• Description: IC MCU FLASH 2KX14 EEPROM 18SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F628A-E/SO

• Program Memory Type: FLASH
• Program Memory Size: 3.5KB (2K x 14)
• Package / Case: 18-SOIC (7.5mm Width)
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 16
• 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 ~ 125°C
• 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: 3
• Operating Supply Voltage: 2 V to 5.5 V
• 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, DM163014, DM164120-4
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: I3DBF648 - BOARD DAUGHTER ICEPIC3AC162053 - HEADER INTERFACE ICD,ICD2 18DIP
• Data Converters: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

FIGURE 5-4:
FIGURE 5-5:
© 2009 Microchip Technology Inc.
Program
MCLR
PORTA
RD
circuit
RD
TRISA
mode
Data
Bus
WR
PORTA
WR
TRISA
RD PORTA
TMR0 Clock Input
Data
Bus
MCLRE
MCLR Filter
HV Detect
TRIS Latch
D
D
Data Latch
CK
CK
RD TRISA
(Configuration Bit)
Q
V
BLOCK DIAGRAM OF RA4/T0CKI/CMP2 PIN
BLOCK DIAGRAM OF THE
RA5/MCLR/V
Q
Q
Q
Q
SS
Schmitt Trigger
EN
Input Buffer
D
Comparator Output
PP
V
Comparator Mode = 110
SS
RA5/MCLR/V
PIN
PP
PIC16F627A/628A/648A
FIGURE 5-6:
(CMCON Reg.)
F
011, 100, 110
PORTA
F
101, 111
WR
WR
TRISA
RD
TRISA
From OSC1
CLKOUT(F
RD PORTA
1
0
Note 1: INTOSC with RA6 = I/O or RC with RA6 = I/O.
OSC
OSC
=
=
2: INTOSC with RA6 = CLKOUT or RC with
Q
(2)
Data Latch
TRIS Latch
OSC
D
D
RA6 = CLKOUT.
CK
CK
(1)
EN
/4)
D
Q
Q
Q
Q
Schmitt Trigger
Input Buffer
BLOCK DIAGRAM OF
RA6/OSC2/CLKOUT PIN
Q
1
0
Vss
N
EN
D
OSC
Circuit
DS40044G-page 35
Vss
RA4 Pin
Schmitt
Trigger
Input Buffer
V
V
DD
SS