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參數(shù)資料
| 型號(hào)： | TMP90P800 |
| 廠商： | Toshiba Corporation |
| 英文描述： | A System Evaluation LSI With One-Time PROM(8192 x 8-Bit),RAM(256 x 8-Bit)(系統(tǒng)評(píng)估大規(guī)模集成電路（帶一次可編程ROM(8192 x 8位),RAM(256 x 8位)) |
| 中文描述： | 一個(gè)系統(tǒng)評(píng)價(jià)芯片與一次性可編程（8192 × 8位），內(nèi)存（256 × 8位）（系統(tǒng)評(píng)估大規(guī)模集成電路（帶一次可編程ROM的（8192 × 8位），內(nèi)存（256 × 8位）） |
| 文件頁(yè)數(shù)： | 11/18頁(yè) |
| 文件大小： | 485K |
| 代理商： | TMP90P800 |
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TOSHIBA CORPORATION
11/18
TMP90P800
(3)
The 400-mode Bit and The Security Bit
The TMP90P800 has The 400-mode Bit and The Security
Bit in PROM cell. If The 400-mode Bit is programmed to
“0”, The TMP90P800 functions as its memory size is
same as TMP90C400 (ROM: 0000H ~ 0FFFH, RAM:
FF00H ~ FF7FH). If The Security Bit is programmed to
“0”, the content of the PROM is disable to read in
PROM mode. If both The 400-mode Bit and The
Security Bit is programmed to “0”, the memory size is
as same as TMP90C400 and its content of the PROM
is disable to read.
How to Program The 400-Mode Bit or The Security Bit.
1) Connect A13, A14 and A15 pins to Vcc. [Otherwise
connect them to GND to program PROM. (address
0000H ~ 1FFFH)]
2) Set programming address to 0000H.
3) To program the 400-mode Bit, set D1 to “0”.
4) To program the Security Bit, set D0 to “0”.
5) Set D2 ~ D7 to “1” respectively.
The following table shows the 8-bit data to program
The 400-mode Bit or The Security Bit.
Table 3.1 Data to Program
Bit To PROGRAM
D0 ~ D7
A0 ~ A12
A13, A14, A15
The 400-mode Bite
The Security BIt
The 400-mode Bit and The Security Bit
FDH
FEH
FCH
all “0”
all “1”
PROM (0000H ~ 1FFFH)
–
–
all “0”
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| TMP90PM36 | A System Evaluation LSI With 8-Bit CPU,One-Time PROM(32968 x 8-Bit),RAM(1024 x 8-Bit)(系統(tǒng)評(píng)估大規(guī)模集成電路（集成8位CPU，一次可編程ROM(32968 x 8位),RAM(1024 x 8位)) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TMP90P800F | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:8-Bit Microcontroller |
| TMP90P800N | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:8-Bit Microcontroller |
| TMP90P802 | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述: |
| TMP90P802A | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述: |
| TMP90P802AM | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:8-Bit Microcontroller |
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