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CAT93C56, CAT93C57
The format for all instructions sent to the device is a
logical “1” start bit, a 2 ? bit (or 4 ? bit) opcode, 7 ? bit address
(CAT93C57) / 8 ? bit address (CAT93C56) (an additional bit
Table 10. INSTRUCTION SET
when organized X8) and for write operations a 16 ? bit data
field (8 ? bit for X8 organizations). The instruction format is
shown in Instruction Set table.
Start
Address
Data
Instruction
READ
ERASE
WRITE
EWEN
Device Type
93C56 (Note 8)
93C57
93C56 (Note 8)
93C57
93C56 (Note 8)
93C57
93C56 (Note 8)
Bit
1
1
1
1
1
1
1
Opcode
10
10
11
11
01
01
00
x8
A8 ? A0
A7 ? A0
A8 ? A0
A7 ? A0
A8 ? A0
A7 ? A0
11XXXXXXX
x16
A7 ? A0
A6 ? A0
A7 ? A0
A6 ? A0
A7 ? A0
A6 ? A0
11XXXXXX
x8
D7 ? D0
D7 ? D0
x16
D15 ? D0
D15 ? D0
Comments
Read Address
AN–A0
Clear Address
AN–A0
Write Address
AN–A0
Write Enable
93C57
1
00
11XXXXXX
11XXXXX
EWDS
ERAL
93C56 (Note 8)
93C57
93C56 (Note 8)
93C57
1
1
1
1
00
00
00
00
00XXXXXXX
00XXXXXX
10XXXXXXX
10XXXXXX
00XXXXXX
00XXXXX
10XXXXXX
10XXXXX
Write Disable
Clear All
Addresses
WRAL
93C56 (Note 8)
93C57
1
1
00
00
01XXXXXXX
01XXXXXX
01XXXXXX
01XXXXX
D7 ? D0
D7 ? D0
D15 ? D0
D15 ? D0
Write All
Addresses
8. Address bit A8 for 256x8 organization and A7 for 128x16 organization are “Don’t Care” bits, but must be kept at either a “1” or “0” for READ,
WRITE and ERASE commands.
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相关代理商/技术参数
CAT93C56XI-1.8 功能描述:电可擦除可编程只读存储器 (256x8) (128x16) 2K 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
CAT93C56XI-1.8-GT2E 制造商:CATALYST 制造商全称:Catalyst Semiconductor 功能描述:2K-Bit Microwire Serial EEPROM
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CAT93C56XI-1.8T2E 制造商:CATALYST 制造商全称:Catalyst Semiconductor 功能描述:2K-Bit Microwire Serial EEPROM
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CAT93C56XI-1.8TE13 制造商:未知厂家 制造商全称:未知厂家 功能描述:EEPROM
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CAT93C56XI-GT2E 制造商:CATALYST 制造商全称:Catalyst Semiconductor 功能描述:2K-Bit Microwire Serial EEPROM