PIC16F87-E/SO Microchip Technology, PIC16F87-E/SO Datasheet - Page 66

• Manufacturer Part Number: PIC16F87-E/SO
• Description: IC MCU FLASH 4KX14 EEPROM 18SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F87-E/SO

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 16
• Program Memory Size: 7KB (4K x 14)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 368 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 18-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Converters: -

PIC16F87/88
FIGURE 5-13:
DS30487C-page 64
Note 1:
Peripheral Input
BLOCK DIAGRAM OF RB5/SS/TX/CK PIN
Set RBIF
From other
RB7:RB4 pins
TRISB
RBPU
Port/SSPEN
Data Bus
PORTB
WR
WR
2:
I/O pins have diode protection to V
To enable weak pull-ups, set the appropriate TRIS bit(s) and clear the RBPU bit.
(2)
RD TRISB
RD PORTB
TRIS Latch
Data Latch
D
D
CK
CK
Q
Q
DD
and V
SS
.
Q
Q
Latch
EN
EN
D
D
TTL
Input
Buffer
RD PORTB
V
P
DD
Weak
Pull-up
I/O pin
 2005 Microchip Technology Inc.
Q1
Q3
(1)