Programming Precautions - Renesas F-ZTAT H8 Series Hardware Manual

Section 18 ROM
18.3.2

Programming Precautions

• Program with the specified voltages and timing.
The programming voltage (V
Applied voltages in excess of the rated values can permanently destroy the chip. Be
particularly careful about the PROM programmer's overshoot characteristics.
If the PROM programmer is set to Renesas Technology HN27C101 specifications, V
12.5 V.
• Before programming, check that the chip is correctly mounted in the PROM programmer.
Overcurrent damage to the chip can result if the index marks on the PROM programmer,
socket adapter, and chip are not correctly aligned.
• Don't touch the socket adapter or chip while programming. Touching either of these can cause
contact faults and write errors.
• Select the programming mode carefully. The chip cannot be programmed in page
programming mode.
• The H8/3048 PROM size is 128 kbytes. Set the address range to H'00000 to H'1FFFF.
Rev. 7.00 Sep 21, 2005 page 578 of 878
REJ09B0259-0700
) in PROM mode is 12.5 V.
PP
will be
PP