HD404639R Datasheet, PDF (112/135 Pages) Renesas Technology Corp – 4-Bit Single-Chip Microcomputer

HD404639R Series
2. Make sure that the PROM programmer, socket adapter, and LSI are aligned correctly (their pin 1
positions match), otherwise overcurrents may damage the LSI. Before starting programming, make
sure that the LSI is firmly fixed in the socket adapter and the socket adapter is firmly fixed onto the
programmer.
3. PROM programmers have two voltages (V_PP): 12.5 V and 21 V. Remember that ZTAT™ devices
require a V_PP of 12.5 V—the 21-V setting will damage them. 12.5 V is the Intel 27256 setting.
Programming and Verification
The built-in PROM of the MCU can be programmed at high speed without risk of voltage stress or damage
to data reliability.
Programming and verification modes are selected as listed in table 29.
Table 29 PROM Mode Selection
Mode
Programming
Verification
Programming inhibited
Pin
CE
Low
High
High
OE
V_PP
O₀–O₇
High
V_PP
Data input
Low
V_PP
Data output
High
V_PP
High impedance
Table 30 Recommended PROM Programmers and Socket Adapters
PROM Programmer
Manufacturer
DATA I/O Corp.
AVAL Corp.
Model Name
121B
PKW-1000
Socket Adapter
Package
Manufacturer
FP-80B
Hitachi
Model Name
HS463ESF01H
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