PIC18F6621-I/PT Microchip Technology Inc., PIC18F6621-I/PT Datasheet - Page 125

• Manufacturer Part Number: PIC18F6621-I/PT
• Description: 64 PIN, 64 KB FLASH, 3840 RAM, 52 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F6621-I/PT

• A/d Inputs: 12-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 10 MIPS
• Eeprom Memory: 1024 Bytes
• Input Output: 54
• Interface: I2C/SPI/UART/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 64-pin TQFP
• Programmable Memory: 64K Bytes
• Ram Size: 3.8K Bytes
• Speed: 40 MHz
• Timers: 2-8-bit, 3-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

FIGURE 10-20:
 2005 Microchip Technology Inc.
System Bus
Note 1: I/O pins have diode protection to V
Control
RH3:RH0 PINS BLOCK DIAGRAM IN SYSTEM BUS MODE
RD PORTH
RD LATH
Data Bus
WR LATH
or
PORTH
RD TRISH
External Enable
Address Out
Drive System
Instruction Read
WR TRISH
To Instruction Register
PIC18F6525/6621/8525/8621
TRIS Latch
Data Latch
D
D
CK
CK
Q
DD
Q
and V
Q
Data
Port
SS
EN
EN
.
D
0
1
I/O pin
TTL
Input
Buffer
(1)
DS39612B-page 123