HD64F3048F16 Datasheet, PDF (42/903 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 1 Overview
Notes: Pins marked NC should be left unconnected.
For details on PROM mode see section 18, ROM (H8/3048F-ONE: Single Power Supply,
H8/3048B Mask ROM Version).
1. In modes 1, 3, 5, and 6 the P4 to P4 functions of pins P4 /D to P4 /D are selected
0
7
00
77
after a reset, but they can be changed by software.
2. In modes 2 and 4 the D₀ to D₇ functions of pins P4₀/D₀ to P4₇/D₇ are selected after a
reset, but they can be changed by software.
3. For the H8/3048B Group which operates at 5 V, this pin is also used as the V_CL terminal,
and for those at 3 V, V_CC terminal. For the H8/3048 ZTAT version, H8/3048F version,
H8/3048 mask ROM version, H8/3047 mask ROM version, H8/3045 mask ROM
version, and H8/3044 mask ROM version, this pin is also used as the V_CC terminal.
4. This pin functions as the FWE pin on the single power supply on-chip flash memory
version. Under no circumstances should 12 V be applied to the single power supply on-
chip flash memory version (H8/3048F-ONE), or to H8/3048 Group or H8/3048B Group
mask ROM products. Doing so will destroy the chip. This pin functions as an overview
control signal in modes 5, 6, and 7. The pin functions as the RESO pin in on-chip mask
ROM versions, on-chip PROM versions, and dual power supply flash memory versions.
Rev. 3.00 Sep 27, 2006 page 14 of 872
REJ09B0325-0300