参数资料
型号: FT93C46A-ISR-T
厂商: Fremont Micro Devices USA
文件页数: 4/19页
文件大小: 0K
描述: IC EEPROM 1KBIT 2MHZ 8SOP
标准包装: 1
格式 - 存储器: EEPROMs - 串行
存储器类型: EEPROM
存储容量: 1K(128 x 8 或 64 x 16)
速度: 250kHz,1MHz,2MHz
接口: 3 线串口
电源电压: 1.8 V ~ 5.5 V
工作温度: -40°C ~ 85°C
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOP
包装: 标准包装
其它名称: 1219-1133-6

93C46/A, 93C56/A, 93C66/A
MEMORY ORGANIZATION
The FT93C46/56/66 memory is organized either as bytes (x8) or as words (x16). If Internal Organization (ORG) is
unconnected (or connected to VCC) the words (x16) organization is selected; When Internal Organization is
connected to ground the bytes (x8) organization is selected.
INSTRUCTION SET for the FT93C46
Instruction
SB
Op
Code
Address
x 8
x 16
x 8
Data
x 16
Comments
READ
EWEN
1
1
10
00
A 6 - A 0
11xxxxx
A 5 - A 0
11xxxx
Reads data stored in memory, at
specified address.
Write enable must precede all
programming modes.
EWDS
1
00
00xxxxx
00xxxx
Disables all programming
instructions.
ERASE
1
11
A 6 - A 0
A 5 - A 0
Erase memory location A n - A 0 .
WRITE
ERAL
WRAL
1
1
1
01
00
00
A 6 - A 0
10xxxxx
01xxxxx
A 5 - A 0
10xxxx
01xxxx
D 7 - D 0
D 7 - D 0
D 15 - D 0
D 15 - D 0
Writes memory location A n - A 0 .
Erases all memory locations.
Writes all memory locations.
INSTRUCTION SET for the FT93C56 and FT93C66
Instruction
SB
Op
Code
x 8
Address
x 16
x 8
Data
x 16
Comments
READ
EWEN
1
1
10
00
A 8 - A 0
11xxxxxxx
A 7 - A 0
11xxxxxx
Reads data stored in memory, at
specified address.
Write enable must precede all
programming modes.
EWDS
1
00
00xxxxxxx
00xxxxxx
Disables all programming
instructions.
ERASE
1
11
A 8 - A 0
A 7 - A 0
Erase memory location A n - A 0 .
WRITE
ERAL
WRAL
1
1
1
01
00
00
A 8 - A 0
10xxxxxxx
01xxxxxxx
A 7 - A 0
10xxxxxx
01xxxxxx
D 7 - D 0
D 7 - D 0
D 15 - D 0
D 15 - D 0
Writes memory location A n - A 0 .
Erases all memory locations.
Writes all memory locations.
.
(A) START BIT (SB)
Each instruction is preceded by a rising edge on Chip Select (CS) with Serial Clock (SCL) being held Low.
(B) OPERATION CODE (OP-CODE)
Two op-code bits, read on Serial Data Input (DI) during the rising edge of Serial Clock (SCL).
(C) ADDRESS
The address bits of the byte or word that is to be accessed. For the FT93C46, the address is made up of 6 bits
for the x16 organization or 7 bits for x8 organization. For the FT93C56, the address is made up of 7 bits for the
x16 organization or 8 bits for x8 organization. For the FT93C66, the address is made up of 8 bits for the x16
organization or 9 bits for x8 organization.
(D) DATA
The data bits of the byte or word that is to be accessed. For the FT93C46/56/66, the data is made up of 16 bits
(word) for the x16 organization or 8 bits (byte) for x8 organization.
DS3020D-page 4
? 2007 Fremont Micro Devices Inc.
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