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參數(shù)資料
| 型號(hào)： | 93LC46B-IP |
| 廠商： | Microchip Technology Inc. |
| 元件分類： | EEPROM |
| 英文描述： | 1K 2.5V Microwire Serial EEPROM |
| 中文描述： | 一千2.5V的微型導(dǎo)線串行EEPROM |
| 文件頁(yè)數(shù)： | 7/12頁(yè) |
| 文件大小： | 203K |
| 代理商： | 93LC46B-IP |
93LC46A/B
1997 Microchip Technology Inc.
Preliminary
DS21173D-page 7
3.8
WRITE
The WRITE instruction is followed by 8 bits (93LC46A)
or 16 bits (93LC46B) of data which are written into the
specified address. After the last data bit is put on the DI
pin, the falling edge of CS initiates the self-timed auto-
erase and programming cycle.
The DO pin indicates the READY/BUSY status of the
device, if CS is brought high after a minimum of 250 ns
low (T
CSL
) and before the entire write cycle is complete.
DO at logical “0” indicates that programming is still in
progress. DO at logical “1” indicates that the register at
the specified address has been written with the data
specified and the device is ready for another instruc-
tion.
3.9
Write All (WRAL)
The Write All (WRAL) instruction will write the entire
memory array with the data specified in the command.
The WRAL cycle is completely self-timed and com-
mences at the falling edge of the CS. Clocking of the
CLK pin is not necessary after the device has entered
the WRAL cycle. The WRAL command does include an
automatic ERAL cycle for the device. Therefore, the
WRAL instruction does not require an ERAL instruction
but the chip must be in the EWEN status.
The DO pin indicates the READY/BUSY status of the
device if CS is brought high after a minimum of 250 ns
low (T
CSL
).
FIGURE 3-7:
WRITE TIMING
FIGURE 3-8:
WRAL TIMING
CS
CLK
DI
DO
1
0
1
An
A0
Dx
D0
BUSY
READY
HIGH-Z
HIGH-Z
Twc
T
CSL
T
CZ
T
SV
CS
CLK
DI
DO
HIGH-Z
1
0
0
0
1
X
X
Dx
D0
HIGH-Z
BUSY
READY
T
WL
Guaranteed at Vcc = 4.5V to +6.0V.
T
CSL
T
SV
T
CZ
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 93LC46B-ISM | 1K 2.5V Microwire Serial EEPROM |
| 93LC46B-ISN | 1K 2.5V Microwire Serial EEPROM |
| 93LC46B-IST | 1K 2.5V Microwire Serial EEPROM |
| 93LC46B-P | 1K 2.5V Microwire Serial EEPROM |
| 93LC46B-SM | 1K 2.5V Microwire Serial EEPROM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 93LC46B-ISM | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:1K 2.5V Microwire Serial EEPROM |
| 93LC46BISN | 制造商:Motorola Inc 功能描述: |
| 93LC46B-ISN | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:1K 2.5V Microwire Serial EEPROM |
| 93LC46B-IST | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:1K 2.5V Microwire Serial EEPROM |
| 93LC46B-P | 制造商:Microchip Technology 功能描述:1k(64~16) 2MHz 2.5V to 5.5V VA / Microwire 8DIP |
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