HD64F3437TFI16V Renesas Electronics America, HD64F3437TFI16V Datasheet - Page 400

• Manufacturer Part Number: HD64F3437TFI16V
• Description: MCU FLASH 60K 100-TQFP
• Manufacturer: Renesas Electronics America

Specifications of HD64F3437TFI16V

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

18.3
The write, verify, and other sub-modes of the writer mode are selected as shown in table 18.4.
Table 18.4 Selection of Sub-Modes in Writer Mode
Sub-Mode
Write
Verify
Programming
inhibited
The H8/3437 and H8/3434 PROM have the same standard read/write specifications as the
HN27C101 EPROM. Page programming is not supported, however, so do not select page
programming mode. PROM programmers that provide only page programming cannot be used.
When selecting a PROM programmer, check that it supports a byte-at-a-time high-speed
programming mode. Be sure to set the address range to H'0000 to H'F77F for the H8/3437, and to
H'0000 to H'7FFF for the H8/3434.
18.3.1
An efficient, high-speed programming procedure can be used to program and verify PROM data.
This procedure programs data quickly without subjecting the chip to voltage stress and without
sacrificing data reliability. It leaves the data H'FF in unused addresses.
Figure 18.5 shows the basic high-speed programming flowchart.
Tables 18.5 and 18.6 list the electrical characteristics of the chip in writer mode. Figure 18.6
shows a program/verify timing chart.
368
PROM Programming
Programming and Verification
CE
Low
Low
Low
Low
High
High
OE
High
Low
Low
High
Low
High
PGM
Low
High
Low
High
Low
High
V
V
V
V
PP
PP
PP
PP
V
V
V
V
CC
CC
CC
CC
EO
Data input
Data output
High impedance
7
to EO
0
EA
Address input
Address input
Address input
16
to EA
0