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參數(shù)資料
| 型號(hào)： | TMP90P802 |
| 廠商： | Toshiba Corporation |
| 英文描述： | A System Evaluation LSI With 8-Bit CPU,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（集成8位CPU，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8位CPU，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（集成8位的CPU，一次可編程ROM的（8192 x 8位），內(nèi)存（256 × 8位）） |
| 文件頁(yè)數(shù)： | 7/14頁(yè) |
| 文件大?。?/td> | 426K |
| 代理商： | TMP90P802 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)當(dāng)前第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)
TOSHIBA CORPORATION
7/14
TMP90P802A
3.2 PROM Mode
(1)
Mode Setting and Function
PROM mode is set by setting the
to the “L” level.
RESET
and CLK pins
The programming and verification for the internal
PROM is achieved by using a general PROM programmer
with the adaptor socket. The device selection (ROM
Type) should be “27256” with following conditions.
size : 256Kbit (32K x 8-bit) VPP: 12.5V TPW: 1ms
Figure 3.2 shows the setting of pins in PROM mode.
Figure 3.2. PROM Mode Pin Setting
(2)
Programming Flow Chart
The programming mode is set by applying 12.5V
(programming voltage) to the VPP pin when the following
pins are set as follows,
(Vcc
: 6.0V)
*These conditions can be
(
RESET
: “L” level) obtained by using adaptor
(CLK
: “L” level) socket.
After the address and data have been fixed, a data on
the Data Bus is programmed when the CE pin is set to
“Low” (1ms plus is required).
General Programming procedure of an EPROM program-
mer is as follows,
Write a data to a specified address for 1ms.
Verify the data. If the read-out data does not match
the expected data, another writing is performed until
the correct data is written (Max. 25 times).
After the correct data is written, an additional writing is
performed by using three times longer programming
pulse width (1ms x programming times), or using three
times more programming pulse number. Then, verify
the data and increment the address.
The verification for all data is done under the condition
of Vpp = Vcc = 5V after all data were written.
Figure 3.3 shows the programming flow chart.
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相關(guān)代理商/技術(shù)參數(shù) |
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