About the article

Simple EEPROM Programmer

Based on a Labs project | October 2011 | Find it here
An extremely popular programmer for the PIC16C84 microcontroller has already appeared in Elektor Electronics (Summer Circuits, 1998): that design used the parallel interface and the popular PIP-02 shareware from Silicon Studio, together with a special driver written by Dave Tait. PIP-02 is capable of programming not just PICs but also EEPROMs equipped with an I2C interface.This works with essentially the same hardware as we presented then, and the circuit in Figure 1 shows how the device to be programmed can be connected. The connection for the special programming voltage has gone, since the EEPROM does not require it.
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Component list
R1 = 10kOhm
R2-R6 = 1kOhm 5
C1,C2,C5 = 100nF
C3 = 47µ F 25V
C4 = 4µ F7 25V
D1 = LED, green, low current
D2 = LED, red, low current
D3 = LED, yellow, low current
D4 = 1N4148
IC1 = 74LS06
IC2 = 78L05
IC3 = 8-way IC socket
K1 = Centronics connector, angled pins, PCB mount
K2 = 2-way PCB terminal block, lead pitch 7.5mm
PCB, order code 014102-1
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