PIC16C642-04E/SO Microchip Technology, PIC16C642-04E/SO Datasheet - Page 17

• Manufacturer Part Number: PIC16C642-04E/SO
• Description: IC MCU OTP 4KX14 COMP 28SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Cr

Specifications of PIC16C642-04E/SO

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 4MHz
• Peripherals: Brown-out Detect/Reset, LED, POR, WDT
• Number Of I /o: 22
• Program Memory Size: 7KB (4K x 14)
• Program Memory Type: OTP
• Ram Size: 176 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 6 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Connectivity: -

4.0
4.1
The PIC16C64X & PIC16C66X have a 13-bit program
counter capable of addressing an 8K x 14 program
memory space. For the PIC16C641 and PIC16C661
only the first 2K x 14 (0000h - 07FFh) is physically
implemented. For the PIC16C642 and PIC16C662 only
the first 4K x 14 (0000h - 0FFh) is physically imple-
mented. Accessing a location above the 2K or 4K
boundary will cause a wrap-around. The reset vector is
at 0000h and the interrupt vector is at 0004h (Figure 4-
1 and Figure 4-2). See Section 4.4 for Program Mem-
ory paging.
FIGURE 4-1:
1996 Microchip Technology Inc.
CALL, RETURN
RETFIE, RETLW
MEMORY ORGANIZATION
Program Memory Organization
Configuration Word
On-chip Program
Stack Level 1
Stack Level 8
Reset Vector
Interrupt Vector
Stack Level 2
PIC16C641/661 PROGRAM
MEMORY MAP AND STACK
PC<12:0>
Memory
TEST
TEST
13
This document was created with FrameMaker 4 0 4
0000h
0004h
0005h
07FFh
0800h
1FFFh
2000h
2007h
3FFFh
Preliminary
PIC16C64X & PIC16C66X
FIGURE 4-2:
CALL, RETURN
RETFIE, RETLW
Configuration Word
On-chip Program
On-chip Program
PIC16C642/662 PROGRAM
MEMORY MAP AND STACK
Stack Level 1
Stack Level 8
Reset Vector
Interrupt Vector
Stack Level 2
PC<12:0>
Memory
Memory
Page0
Page1
TEST
TEST
13
DS30559A-page 17
0000h
0004h
0005h
07FFh
0800h
0FFFh
1000h
1FFFh
2000h
2007h
3FFFh