Lucent Technologies MN102F85K User Manual

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Because you can maintain and upgrade the program in the MN102HF75K/85K 

up to and immediately following product release, this version of the device 
shortens time-to-market by as much as one month. This device is ideal for appli-

cations in quickly changing markets, since it allows you to revise the microcon-
troller program in an existing product.

In this mode, the MN102HF75K allows a PROM writer to program the internal 
flash memory as if it was a standalone memory chip. The microcontroller is 

inserted into a dedicated adaptor socket, which connects to DATA-I/O’s LabSite 
PROM writer. When the microcontroller connects to the adaptor socket, it auto-

matically enters PROM writer mode. The adaptor socket ties the microcontroller 
pin states to PROM writer mode, and programming occurs without any reference 

to the microcontroller pin states.

MN102HF85K

Adaptor socket for MN102HF85K

Third-party

PROM writer

MN102HF75K

Adaptor socket for MN102HF75K

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A17

NWE

MODE

A15

A14

A13

A12

A11

A10

A9

VSS

A8

A7

A6

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A4

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A2

A1

A0

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I/O13

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ERASE

I/O7

I/O6

I/O5

I/O4

I/O3

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I/O1

I/O0

NOE

A16