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MCP19125

Flash Memory Programming Specification



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MCP19125 pdf
MCP19124/5
MCP19124/5 Flash Memory Programming Specification
This document includes the
programming specifications for the
following devices:
• MCP19124
• MCP19125
1.0 PROGRAMMING THE
MCP19124 AND MCP19125
DEVICES
The MCP19124/5 devices are programmed using a serial
method. The Serial mode will allow these devices to be
programmed while in the user’s system. These
programming specifications apply to all of the above
devices in all packages.
1.1 Hardware Requirements
This family of devices requires one power supply for
VIN, see Table 6-1. The VDD that is used to bias all
internal circuitry is internally generated and regulated
to 5V. Analog circuitry is powered from internally
generated AVDD and is regulated to 4V.
1.2 Program/Verify Mode
The Program/Verify mode for this family of devices
allows programming the user program memory, the
user ID locations, the Calibration Word and the
Configuration Word.
FIGURE 1-1:
PIN DIAGRAM – 24-PIN QFN (MCP19124)
GPA0/AN0/TEST_OUT 1
GPA1/AN1/CLKPIN 2
GPA2/AN2/T0CKI/INT 3
GPA3/AN3 4
GPA7/SCL/ICSPCLK 5
GPA6/CCD/ICSPDAT 6
MCP19124
EXP-25
18 VDR
17 PDRV
16 SDRV
15 PGND
14 AGND
13 IP
2016 Microchip Technology Inc.
DS20005566A-page 1



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MCP19125 pdf
MCP19124/5
TABLE 1-1: PIN DESCRIPTIONS IN PROGRAM/VERIFY MODE: MCP19124
Pin Name
Function
During Programming
Pin Type
Pin Description
GPA7
GPA6
MCLR
VIN
VDD
GND
Legend:
Note 1:
ICSPCLK
I Clock Input – Schmitt Trigger Input
ICSPDAT
I/O Data Input/Output – Schmitt Trigger Input
Program/Verify mode
P(1) Program Mode Select
VIN
VDD
VSS
I = Input, O = Output, P = Power
P Device Power Supply Input
P Power Supply Output
P Ground
In the MCP19124, the programming high voltage is internally generated. To activate the Program/Verify
mode, voltage of VIHH and a current of IIHH (see Table 6-1) need to be applied to the MCLR input.
FIGURE 1-2:
MCP19124 WIRING DIAGRAM
POWER SUPPLY
VIN (12V-15V)
GND
20
MCP19124
VIN
VDD 19
14 AGND
AGND 14
15 PGND
5
ICSPCLK
6
ICSPDAT
7
MCLR
VDD
GND
PROGRAMMER
DS20005566A-page 2
2016 Microchip Technology Inc.



Part Number MCP19125
Description Flash Memory Programming Specification
Maker Microchip - Microchip
Total Page 26 Pages
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