參數(shù)資料
型號： M34584EDFP
元件分類： 微控制器/微處理器
英文描述： 4-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PDSO42
封裝： 0.450 INCH, 0.80 MM PITCH, PLASTIC, SSOP-42
文件頁數(shù)： 64/159頁
文件大小： 1166K
代理商： M34584EDFP
Rev.3.00
2004.08.06
page 154 of 155
REJ03B0010-0300Z
4584 Group
PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
(1) PROM mode
The built-in PROM version has a PROM mode in addition to a nor-
mal operation mode. The PROM mode is used to write to and read
from the built-in PROM.
In the PROM mode, the programming adapter can be used with a
general-purpose PROM programmer to write to or read from the
built-in PROM as if it were M5M27C256K.
Programming adapter is listed in Table 22. Contact addresses at
the end of this data sheet for the appropriate PROM programmer.
Writing and reading of built-in PROM
Programming voltage is 12.5 V. Write the program in the PROM of
the built-in PROM version as shown in Figure 70.
(2) Notes on handling
A high-voltage is used for writing. Take care that overvoltage is
not applied. Take care especially at turning on the power.
For the One Time PROM version shipped in blank, Renesas
Technology Corp. does not perform PROM writing test and
screening in the assembly process and following processes. In
order to improve reliability after writing, performing writing and
test according to the flow shown in Figure 71 before using is rec-
ommended (Products shipped in blank: PROM contents is not
written in factory when shipped).
(3) Electric Characteristic Differences
Between Mask ROM and One Time PROM
Version MCU
There are differences in electric characteristics, operation mar-
gin, noise immunity, and noise radiation between Mask ROM and
One Time PROM version MCUs due to the difference in the
manufacturing processes.
When manufacturing an application system with the One time
PROM version and then switching to use of the Mask ROM ver-
sion, please perform sufficient evaluations for the commercial
samples of the Mask ROM version.
Fig. 70 PROM memory map
Fig. 71 Flow of writing and test of the product shipped in blank
Microcomputer
M34584EDFP
Name of Programming Adapter
PCA7441
Table 22 Programming adapter
Address
000016
3FFF16
7FFF16
1
11
D4
D3
D2
D1
D0
High-order 5 bits
1
11
D4
D3
D2
D1
D0
Low-order 5 bits
400016
Writing with PROM programmer
Screening (Leave at 150
°C for 40 hours) (Note)
Verify test with PROM programmer
Function test in target device
Since the screening temperature is higher
than storage temperature, never expose the
microcomputer to 150
°C exceeding 100
hours.
Note:
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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