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参数资料
| 型号： | FT24C04A-UNR-T |
| 厂商： | Fremont Micro Devices USA |
| 文件页数： | 5/20页 |
| 文件大小： | 0K |
| 描述： | IC EEPROM 4KBIT 1MHZ 8DFN |
| 标准包装： | 1 |
| 格式 - 存储器： | EEPROMs - 串行 |
| 存储器类型： | EEPROM |
| 存储容量： | 4K (512 x 8) |
| 速度： | 400kHz，1MHz |
| 接口： | I²C，2 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-WFDFN 裸露焊盘 |
| 供应商设备封装： | 8-DFN（2x3） |
| 包装： | 标准包装 |
| 其它名称： | 1219-1128-6 |
24C04A, 24C08A, 24C16A
DEVICE ADDRESSING
The 2-wire serial bus protocol mandates an 8 bits device address word after a START bit condition to invoke valid read
or write command. The first four most significant bits of the device address must be 1010, which is common to all
serial EEPROM devices. The next three bits are device address bits. These three device address bits (5 th , 6 th and 7 th ) are
to match with the external chip select/address pin states. If a match is made, the EEPROM device outputs an
ACKNOWLEDGE signal after the 8 th read/write bit, otherwise the chip will go into STANDBY mode. However,
matching may not be needed for some or all device address bits (5 th , 6 th and 7 th ) as noted below. The last or 8th bit is a
read/write command bit. If the 8th bit is at V IH then the chip goes into read mode. If a “0” is detected, the device enters
programming mode.
FT24C04A uses A2 (5 th ) and A1 (6 th ) device address bits. Only four FT24C04A devices can be wired-OR on the same
2-wire bus. Their corresponding chip select address pins A2 and A1 must be hard wired and coded from 00 (b) to 11
(b). Chip select address pin A0 is not used.
FT24C08A uses only A2 (5 th ) device address bit. Only two FT24C08A devices can be wired-OR on the same 2-wire
bus. Their corresponding chip select address pin A2 must be hard-wired and coded from 0 (b) to 1 (b). Chip select
address pins A1 and A0 are not used.
FT24C16A does not use any device address bit. Only one FT24C16A device can be used on the on 2-wire bus. Chip
Select address pins A2, A1, and A0 are not used.
WRITE OPERATIONS
(A) BYTE WRITE
A byte write operation starts when a micro-controller sends a START bit condition, follows by a proper EEPROM
device address and then a write command. If the device address bits match the chip select address, the EEPROM
device will acknowledge at the 9 th clock cycle. The micro-controller will then send the rest of the lower 8 bits word
address. At the 18 th cycle, the EEPROM will acknowledge the 8-bit address word. The micro-controller will then
transmit the 8 bit data. Following an ACKNOWLDEGE signal from the EEPROM at the 27 th clock cycle, the
micro-controller will issue a STOP bit. After receiving the STOP bit, the EEPROM will go into a self-timed
programming mode during which all external inputs will be disabled. After a programming time of T WC , the byte
programming will finish and the EEPROM device will return to the STANDBY mode.
(B) PAGE WRITE
A page write is similar to a byte write with the exception that one to sixteen bytes can be programmed along the
same page or memory row. All FT24C04A/08A/16A are organized to have 16 bytes per memory row or page.
With the same write command as the byte write, the micro-controller does not issue a STOP bit after sending the
1 st byte data and receiving the ACKNOWLEDGE signal from the EEPROM on the 27 th clock cycle. Instead it
sends out a second 8-bit data word, with the EEPROM acknowledging at the 36 th cycle. This data sending and
EEPROM acknowledging cycle repeats until the micro-controller sends a STOP bit after the n ? 9 th clock cycle.
After which the EEPROM device will go into a self-timed partial or full page programming mode. After the page
programming completes after a time of T WC , the devices will return to the STANDBY mode.
? 2009 Fremont Micro Devices Inc.
DS3001M-page 5
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| FT24C04A-USG-B | 功能描述:IC EEPROM 4KBIT 1MHZ 8SOP RoHS:是 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:96 系列:- 格式 - 存储器:闪存 存储器类型:FLASH 存储容量:1M (64K x 16) 速度:150ns 接口:并联 电源电压:3 V ~ 3.6 V 工作温度:0°C ~ 70°C 封装/外壳:48-TFSOP（0.724"，18.40mm 宽） 供应商设备封装:48-TSOP 包装:托盘 |
| FT24C04A-USG-T | 功能描述:IC EEPROM 4KBIT 1MHZ 8SOP RoHS:是 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:96 系列:- 格式 - 存储器:闪存 存储器类型:FLASH 存储容量:1M (64K x 16) 速度:150ns 接口:并联 电源电压:3 V ~ 3.6 V 工作温度:0°C ~ 70°C 封装/外壳:48-TFSOP（0.724"，18.40mm 宽） 供应商设备封装:48-TSOP 包装:托盘 |
| FT24C04A-USR-B | 功能描述:IC EEPROM 4KBIT 1MHZ 8SOP RoHS:是 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:96 系列:- 格式 - 存储器:闪存 存储器类型:FLASH 存储容量:1M (64K x 16) 速度:150ns 接口:并联 电源电压:3 V ~ 3.6 V 工作温度:0°C ~ 70°C 封装/外壳:48-TFSOP（0.724"，18.40mm 宽） 供应商设备封装:48-TSOP 包装:托盘 |
| FT24C04A-USR-T | 功能描述:IC EEPROM 4KBIT 1MHZ 8SOP RoHS:是 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:96 系列:- 格式 - 存储器:闪存 存储器类型:FLASH 存储容量:1M (64K x 16) 速度:150ns 接口:并联 电源电压:3 V ~ 3.6 V 工作温度:0°C ~ 70°C 封装/外壳:48-TFSOP（0.724"，18.40mm 宽） 供应商设备封装:48-TSOP 包装:托盘 |
| FT24C04A-UTG-B | 功能描述:IC EEPROM 4KBIT 1MHZ 8TSSOP RoHS:是 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:96 系列:- 格式 - 存储器:闪存 存储器类型:FLASH 存储容量:1M (64K x 16) 速度:150ns 接口:并联 电源电压:3 V ~ 3.6 V 工作温度:0°C ~ 70°C 封装/外壳:48-TFSOP（0.724"，18.40mm 宽） 供应商设备封装:48-TSOP 包装:托盘 |
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