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參數(shù)資料
| 型號(hào)： | S-29Z330A |
| 廠商： | Seiko Instruments Inc. |
| 英文描述： | 256-Word x 16-Bit CMOS Serial EEPROM(4K位CMOS串行EEPROM) |
| 中文描述： | 256字× 16位的CMOS串行EEPROM（4K的位的CMOS串行EEPROM的） |
| 文件頁數(shù)： | 8/41頁 |
| 文件大小： | 166K |
| 代理商： | S-29Z330A |
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CMOS SERIAL E
2
PROM
S-29ZX30A
7
2.1 WRITE
This instruction writes 16-bit data to a specified address.
After changing CS to high, input a start-bit, op-code (WRITE), address, and 16-bit data. If there is a data overflow of more
than 16 bits, only the last 16-bits of the data is considered valid. Changing CS to low will start the WRITE operation. It is
not necessary to make the data "1" before initiating the WRITE operation.
Figure 6
WRITE Timing (S-29Z330A)
t
CDS
t
PR
busy
Hi-Z
t
SV
VERIFY
Standby
Hi-Z
1
CS
SK
DI
DO
t
HZ1
2
3
4
5
6
7
8
9
10
11
12
27
0
1
D0
ready
A7
A6
A5
A4
A3
A2
A1
A0
D15
Figure 7
WRITE Timing (S-29Z430A)
t
CDS
t
PR
busy
Hi-Z
t
SV
VERIFY
Hi-Z
1
CS
SK
DI
DO
t
HZ1
2
3
4
5
6
7
8
9
10
14
29
0
1
D0
ready
A3
A2
A1
A0
D15
2. Write (WRITE, ERASE)
There are two write instructions, WRITE and ERASE. Each automatically begins writing to the non-volatile memory
when CS goes low at the completion of the specified clock input.
The write operation is completed in 10 ms (t
PR
Max.), and the typical write period is less than 4 ms. In the S-
29ZX30A series, it is easy to VERIFY the completion of the write operation in order to minimize the write cycle by setting
CS to high and checking the DO pin, which is low during the write operation and high after its completion. This VERIFY
procedure can be executed over and over again. There are two methods to detect a change in the DO output. One is to
detect a change from low to high setting CS to high, and the other is to detect a change from low to high as a result of
repetitious operations of returning the CS to low after setting CS to high and checking the DO output.
Because all SK and DI inputs are ignored during the write operation, any input of instruction will also be disregarded.
When DO outputs high after completion of the write operation or if it is in the high-impedence state (Hi-Z), the input of
instructions is available. Even if the DO pin remains high, it will enter the high-impedence state upon the recognition of
a high of DI (start-bit) attached to the rising edge of an SK pulse. (see Figure 3).
DI input should be low during the VERIFY procedure.
11
12
13
A8
A7
A6
A5
A4
X
Standby
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S-29ZX30A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Serial 3-wire EEPROMs |
| S2A | 功能描述:撥動(dòng)開關(guān) ON-NONE-ON SPDT SOLDER LUG RoHS:否 制造商:C&K Components 觸點(diǎn)形式:DPDT 開關(guān)功能:ON - ON - ON 電流額定值: 電壓額定值 AC:20 V 電壓額定值 DC:20 V 功率額定值:0.4 VA 端接類型:V-Bracket 安裝風(fēng)格: 端子密封:Epoxy 觸點(diǎn)電鍍:Gold 照明:Not Illuminated |
| S-2A | 制造商:Nihon Kaiheiki Ind Co Ltd 功能描述:30V 50000(@BIv) / 25000(dCIv) bL +85 -30 30mm 18mm 45.5mm Bulk 制造商:Nihon Dempa Kogyo Co (NDK) 功能描述:Switch, toggle, solder terminal, minitur |
| S2A- | 制造商:GS 功能描述:General Purpose 50V SMD (Surface Mount) Rectifier SMB 2A 制造商:GS 功能描述:General Purpose 50V SMD (Surface Mount) Rectifier SMB 2A - free partial T/R at 500. |
| S2A | 制造商:Vishay Semiconductors 功能描述:DIODE SMB 1.5A 50V |
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