HD64F3644PV Datasheet, PDF (127/551 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 6 ROM
6.3 Programming
The H8/3644 write, verify, and other modes are selected as shown in table 6.2 in PROM mode.
Table 6.2 Mode Selection in PROM Mode (H8/3644)
Mode
CE
OE
VPP
Write
L
H
VPP
Verify
H
L
VPP
Programming H
H
VPP
disabled
Legend:
L: Low level
H: High level
VPP: VPP level
VCC: VCC level
Pin
VCC
EO7 to EO0
VCC
Data input
VCC
Data output
VCC
High impedance
EA14 to EA0
Address input
Address input
Address input
The specifications for writing and reading are identical to those for the standard HN27C256
EPROM.
Rev. 6.00 Sep 12, 2006 page 105 of 526
REJ09B0326-0600