收藏本站
AT34C02B
Pin Description
SERIAL CLOCK (SCL): The SCL input is used to positive edge clock data into each
EEPROM device and negative edge clock data out of each device.
SERIAL DATA (SDA): The SDA pin is bidirectional for serial data transfer. This pin is
open-drain driven and may be wire-ORed with any number of other open-drain or open
collector devices.
DEVICE/PAGE ADDRESSES (A2, A1, A0): The A2, A1, and A0 pins are device
address inputs that are hardwired (directly to GND or to Vcc) for compatibility with other
AT24Cxx devices. When the pins are hardwired, as many as eight 2K devices may be
addressed on a single bus system. (Device addressing is discussed in detail under
“Device Addressing,” page 9.) A device is selected when a corresponding hardware and
software match is true. If these pins are left floating, the A2, A1, and A0 pins will be
internally pulled down to GND. However, due to capacitive coupling that may appear
during customer applications, Atmel recommends always connecting the address pins
to a known state. When using a pull-up resistor, Atmel recommends using 10k ? or less.
WRITE PROTECT (WP): The write protect input, when connected to GND, allows nor-
mal write operations. When WP is connected directly to Vcc, all write operations to the
memory are inhibited. If the pin is left floating, the WP pin will be internally pulled down
to GND. However, due to capacitive coupling that may appear during customer applica-
tions, Atmel recommends always connecting the WP pins to a known state. When using
a pull-up resistor, Atmel recommends using 10k ? or less.
Table 2. AT34C02B Write Protection Modes
Permanent Write Protect
Reversible Write Protect
Part of the Array Write
WP Pin Status
V CC
GND or Floating
GND or Floating
GND or Floating
Register
–
Not Programmed
Programmed
–
Register
–
Not Programmed
–
Programmed
Protected
Full Array (2K)
Normal Read/Write
First-Half of Array
(1K: 00H - 7FH)
First-Half of Array
(1K: 00H - 7FH)
Table 3. Pin Capacitance (1)
Applicable over recommended operating range from T A = 25 ° C, f = 100 kHz, V CC = +1.7V
Symbol
C I/O
C IN
Test Condition
Input/Output Capacitance (SDA)
Input Capacitance (A 0 , A 1 , A 2 , SCL)
Max
8
6
Units
pF
pF
Conditions
V I/O = 0V
V IN = 0V
Note:
1. This parameter is characterized and is not 100% tested.
3
3417E–SEEPR–1/07
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
AT34C02C-TH-T IC EEPROM 2KBIT 400KHZ 8TSSOP
AT45CS1282-TC IC FLASH 128MBIT 50MHZ 40TSOP
AT45DB011B-XI IC FLASH 1MBIT 20MHZ 14TSSOP
AT45DB021B-TI IC FLASH 2MBIT 20MHZ 28TSOP
AT45DB041B-TI IC FLASH 4MBIT 20MHZ 28TSOP
AT45DB081B-TI IC FLASH 8MBIT 20MHZ 28TSOP
AT45DB161B-TI IC FLASH 16MBIT 20MHZ 28TSOP
AT45DB321-TC IC FLASH 32MBIT 13MHZ 32TSOP
相关代理商/技术参数
AT34C02B-10TU-1.7 SL383 功能描述:IC EEPROM 2KBIT 400KHZ 8TSSOP RoHS:是 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:378 系列:- 格式 - 存储器:闪存 存储器类型:FLASH 存储容量:8M（1M x 8，512K x 16） 速度:110ns 接口:并联 电源电压:2.7 V ~ 3.6 V 工作温度:-40°C ~ 85°C 封装/外壳:48-CBGA 供应商设备封装:48-CBGA（7x7） 包装:托盘
AT34C02B-10TU-1.7-T 功能描述:IC EEPROM 2KBIT 400KHZ 8TSSOP 制造商:microchip technology 系列:- 包装:带卷（TR） 零件状态:停產 存储器类型:非易失 存储器格式:EEPROM 技术:EEPROM 存储容量:2Kb （256 x 8） 时钟频率:400kHz 写周期时间 - 字，页:5ms 访问时间:900ns 存储器接口:I2C 电压 - 电源:1.7 V ~ 3.6 V 工作温度:-40°C ~ 85°C（TA） 安装类型:表面贴装 封装/外壳:8-TSSOP（0.173"，4.40mm 宽） 供应商器件封装:8-TSSOP 基本零件编号:AT34C02 标准包装:5,000
AT34C02BN-10SU-1.7 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:Two-wire Serial EEPROM with Permanent and Reversible Software Write Protect
AT34C02BU3-10UU-1.7 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:Two-wire Serial EEPROM with Permanent and Reversible Software Write Protect
AT34C02BY6-10YH-1.7 功能描述:IC EEPROM 2KBIT 400KHZ 8DFN RoHS:是 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:1 系列:- 格式 - 存储器:RAM 存储器类型:SDRAM 存储容量:256M（8Mx32） 速度:143MHz 接口:并联 电源电压:3 V ~ 3.6 V 工作温度:-40°C ~ 85°C 封装/外壳:90-VFBGA 供应商设备封装:90-VFBGA（8x13） 包装:托盘 其它名称:Q2841869
AT34C02BY6-10YH-1.7-T 功能描述:IC EEPROM 2KBIT 400KHZ 8MINIMAP 制造商:microchip technology 系列:- 包装:带卷（TR） 零件状态:停產 存储器类型:非易失 存储器格式:EEPROM 技术:EEPROM 存储容量:2Kb （256 x 8） 时钟频率:400kHz 写周期时间 - 字，页:5ms 访问时间:900ns 存储器接口:I2C 电压 - 电源:1.7 V ~ 3.6 V 工作温度:-40°C ~ 85°C（TA） 安装类型:表面贴装 封装/外壳:8-UFDFN 裸露焊盘 供应商器件封装:8-Mini Map（2x3） 基本零件编号:AT34C02 标准包装:5,000
AT34C02C 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:Two-wire Serial EEPROM with Permanent and Reversible Software Write Protect
AT34C02C_08 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:Two-wire Serial EEPROM with Permanent and Reversible Software Write Protect 2K (256 x 8)