參數(shù)資料
型號(hào): HD40A4639R
廠商: Hitachi,Ltd.
英文描述: 4-Bit Single-Chip Microcomputer(4位單片微計(jì)算機(jī))
中文描述: 4位單片機(jī)(4位單片微計(jì)算機(jī))
文件頁(yè)數(shù): 110/133頁(yè)
文件大?。?/td> 803K
代理商: HD40A4639R
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HD404639R Series
110
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
Pin
CE
Mode
OE
V
PP
V
PP
V
PP
V
PP
O
0
–O
7
Data input
Programming
Low
High
Verification
High
Low
Data output
Programming inhibited
High
High
High impedance
Table 30 Recommended PROM Programmers and Socket Adapters
PROM Programmer
Socket Adapter
Manufacturer
Model Name
Package
Manufacturer
Model Name
DATA I/O Corp.
121B
FP-80B
Hitachi
HS463ESF01H
AVAL Corp.
PKW-1000
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