PIC16F628AT-E/SS Microchip Technology, PIC16F628AT-E/SS Datasheet - Page 39

• Manufacturer Part Number: PIC16F628AT-E/SS
• Description: IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,SSOP,20PIN,PLASTIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F628AT-E/SS

• Rohs Compliant: YES
• 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
• Program Memory Size: 3.5KB (2K x 14)
• 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 ~ 125°C
• Package / Case: 20-SSOP
• 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 5-9:
© 2009 Microchip Technology Inc.
WR TRISB
RD TRISB
RBPU
WR PORTB
Peripheral OE
RD PORTB
SPEN
USART Data Output
Data Bus
Note
USART Receive Input
1:
Peripheral OE (output enable) is only active if
peripheral select is active.
(1)
TRIS Latch
Data Latch
D
D
CK
CK
BLOCK DIAGRAM OF
RB1/RX/DT PIN
Q
Q
Schmitt
Q
Trigger
Q
Q
EN
1
0
D
TTL
Input
Buffer
V
P
DD
V
V
Weak
Pull-up
DD
SS
RX/DT
RB1/
PIC16F627A/628A/648A
FIGURE 5-10:
WR PORTB
WR TRISB
Peripheral OE
RD TRISB
RD PORTB
RBPU
SPEN
USART TX/CK Output
Data Bus
Note
USART Slave Clock In
1:
Peripheral OE (output enable) is only active if
peripheral select is active.
(1)
TRIS Latch
Data Latch
D
D
CK
CK
BLOCK DIAGRAM OF
RB2/TX/CK PIN
Q
Q
Schmitt
Q
Q
Trigger
Q
EN
1
0
D
DS40044G-page 39
TTL
Input
Buffer
V
P
DD
Weak
Pull-up
V
V
DD
SS
TX/CK
RB2/