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参数资料
| 型号： | 93C46B/SM |
| 元件分类： | PROM |
| 英文描述： | 64 X 16 MICROWIRE BUS SERIAL EEPROM, PDSO8 |
| 封装： | 0.208 INCH, PLASTIC, SOIC-8 |
| 文件页数： | 9/12页 |
| 文件大小： | 211K |
| 代理商： | 93C46B/SM |
93C46B
DS21172E-page 6
2001 Microchip Technology Inc.
3.6
ERASE/WRITE Disable and Enable
(EWDS/EWEN)
The device powers up in the ERASE/WRITE Disable
(EWDS) state. All programming modes must be pre-
ceded by an Erase/Write Enable (EWEN) instruction.
Once the EWEN instruction is executed, programming
remains enabled until an EWDS instruction is executed
or Vcc is removed from the device. To protect against
accidental data disturbance, the EWDS instruction can
be used to disable all ERASE/WRITE functions and
should follow all programming operations. Execution of
a READ instruction is independent of both the EWDS
and EWEN instructions.
3.7
READ
The READ instruction outputs the serial data of the
addressed memory location on the DO pin. A dummy
zero bit precedes the 16-bit output string. The output
data bits will toggle on the rising edge of the CLK and
are stable after the specified time delay (TPD). Sequen-
tial read is possible when CS is held high. The memory
data will automatically cycle to the next register and
output sequentially.
FIGURE 3-4:
EWDS TIMING
FIGURE 3-5:
EWEN TIMING
FIGURE 3-6:
READ TIMING
CS
CLK
DI
10
00
0
X
X
TCSL
1X
CS
CLK
DI
00
1
X
TCSL
CS
CLK
DI
DO
11
0
An
A0
HIGH-Z
0Dx
D0
Dx
D0
Dx
D0
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PDF描述 |
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| 93C46BT/SM | 64 X 16 MICROWIRE BUS SERIAL EEPROM, PDSO8 |
| 93C46BE/SM | 64 X 16 MICROWIRE BUS SERIAL EEPROM, PDSO8 |
| 93C46BT/ST | 64 X 16 MICROWIRE BUS SERIAL EEPROM, PDSO8 |
| 93C46B-I/SM | 64 X 16 MICROWIRE BUS SERIAL EEPROM, PDSO8 |
| 93C46B/P | 64 X 16 MICROWIRE BUS SERIAL EEPROM, PDIP8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 93C46B-SN | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:1K 5.0V Microwire Serial EEPROM |
| 93C46B-ST | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:1K 5.0V Microwire Serial EEPROM |
| 93C46BT-/SM | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Microwire Serial EEPROM |
| 93C46BT/SN | 功能描述:电可擦除可编程只读存储器 64x16 RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| 93C46BT-/SN | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Microwire Serial EEPROM |
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