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參數(shù)資料
| 型號： | M34554EDFP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PQFP64 |
| 封裝： | 14 X 14 MM, 0.80 MM PITCH, PLASTIC, QFP-64 |
| 文件頁數(shù)： | 41/138頁 |
| 文件大小： | 1082K |
| 代理商： | M34554EDFP |
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Rev.3.00
Aug 06, 2004
page 135 of 136
REJ03B0043-0300Z
4554 Group
(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 26. 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 62.
(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 63 before using is rec-
ommended (Products shipped in blank: PROM contents is not
written in factory when shipped).
(3) Difference between Mask ROM version and
One Time PROM version
Mask ROM version and One Time PROM version have some differ-
ence of the following characteristics within the limits of an electrical
property by difference of a manufacture process, built-in ROM, and
a layout pattern.
a characteristic value
a margin of operation
the amount of noise-proof
noise radiation, etc.,
Accordingly, be careful of them when swithcing.
Fig. 62 PROM memory map
Fig. 63 Flow of writing and test of the product shipped in blank
Part number
M34554EDFP
Name of Programming Adapter
PCA7448
Table 26 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 |
|---|---|
| M34554M8-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34554MC-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34556G8FP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34556G8HFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34556M4H-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
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