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H8S/2224 Scheda tecnica(PDF) 849 Page - Renesas Technology Corp

Il numero della parte H8S/2224
Spiegazioni elettronici  16-Bit Single-Chip Microcomputer H8S Family/H8S/2200 Series
PDF  1071 Pages
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Produttore elettronici  RENESAS [Renesas Technology Corp]
Homepage  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

H8S/2224 Scheda tecnica(HTML) 849 Page - Renesas Technology Corp

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Section 22 PROM
Rev. 5.00 Aug 08, 2006 page 763 of 982
REJ09B0054-0500
Program
Verification
Input data
Output data
tAS
tAH
tDF
tDH
tDS
tVPS
tVCS
tCES
tPW
tOPW*
tOES
tOE
Address
Data
VPP
VCC
CE
PGM
OE
VPP
VCC
VCC +1
VCC
Note: * tOPW is defined by the value shown in the flowchart.
Figure 22.5 PROM Programming/Verification Timing
22.3.2
Programming Precautions
• Program using the specified voltages and timing.
The programming voltage (VPP) in PROM mode is 12.5 V.
Applied voltages in excess of the specified values can permanently destroy the MCU. Be
particularly careful about the PROM programmer’s overshoot characteristics.
If the PROM programmer is set to Renesas Technology HN27C101 specifications, VPP will be
12.5 V.
• Before programming, check that the MCU is correctly mounted in the PROM programmer.
Overcurrent damage to the MCU can result if the index marks on the PROM programmer,
socket adapter, and MCU are not correctly aligned.
• Do not touch the socket adapter or MCU while programming. Touching either of these can
cause contact faults and programming errors.
• The MCU cannot be programmed in page programming mode. Select the programming mode
carefully.



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