This feature is used by industry-standard programming equipment to select the proper programming algorithms and
voltages. The AT27BV256 programs in exactly the same way as a standard, 5V Atmel AT27C256R, and uses the same
programming equipment.
2.
Pin configurations
Pin name
A0 - A14
O0 - O7
Function
Addresses
Outputs
32-lead PLCC
Top view
CE
OE
NC
Chip enable
Output enable
No connect
A6
A5
A4
A3
A2
A1
A0
NC
O0
5
6
7
8
9
10
11
12
13
29
28
27
26
25
24
23
22
21
A8
A9
A11
NC
OE
A10
CE
O7
O6
Note:
PLCC package pins 1 and 17 are “don’t connect.”
3.
System considerations
Switching between active and standby conditions via the chip enable pin may produce transient voltage excursions. Unless
accommodated by the system design, these transients may exceed datasheet limits, resulting in device non-conformance.
At a minimum, a 0.1μF, high-frequency, low inherent inductance, ceramic capacitor should be utilized for each device. This
capacitor should be connected between the V CC and ground terminals of the device, as close to the device as possible.
Additionally, to stabilize the supply voltage level on printed circuit boards with large EPROM arrays, a 4.7μF bulk electrolytic
capacitor should be utilized, again connected between the V CC and ground terminals. This capacitor should be positioned as
close as possible to the point where the power supply is connected to the array.
Figure 3-1.
Block diagram
2
Atmel AT27BV256
0601F–EPROM–4/11
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相关代理商/技术参数
AT27BV256-70JU SL383 制造商:Atmel Corporation 功能描述:EPROM OTP 256K-Bit 32K x 8 70ns 32-Pin PLCC
AT27BV256-70JU-T 功能描述:IC OTP 256KBIT 70NS 32PLCC 制造商:microchip technology 系列:- 包装:剪切带(CT) 零件状态:在售 存储器类型:非易失 存储器格式:EPROM 技术:EPROM - OTP 存储容量:256Kb (32K x 8) 写周期时间 - 字,页:- 访问时间:70ns 存储器接口:并联 电压 - 电源:2.7 V ~ 3.6 V,4.5 V ~ 5.5 V 工作温度:-40°C ~ 85°C(TC) 安装类型:表面贴装 封装/外壳:32-LCC(J 形引线) 供应商器件封装:32-PLCC(11.43x13.97) 标准包装:1
AT27BV256-70RC 功能描述:IC OTP 256KBIT 70NS 28SOIC RoHS:否 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:32 系列:- 格式 - 存储器:闪存 存储器类型:FLASH 存储容量:1M (128K x 8) 速度:120ns 接口:并联 电源电压:2.7 V ~ 3.6 V 工作温度:0°C ~ 70°C 封装/外壳:32-LCC(J 形引线) 供应商设备封装:32-PLCC 包装:管件 其它名称:AT49BV00112JC
AT27BV256-70RI 功能描述:可擦除可编程ROM 1Mb (64Kx16) OTP 2.7-3.6V 70ns RoHS:否 制造商:Maxim Integrated 类型: 存储容量:1024 bit 组织:1 K x 1 接口类型: 工作电流:5 uA 编程电压: 工作电源电压:2.8 V to 6 V 最大工作温度:+ 85 C 安装风格:Through Hole 封装 / 箱体:TO-92
AT27BV256-70RU 功能描述:可擦除可编程ROM 1Mb (64Kx16) OTP 2.7-3.6V 70ns RoHS:否 制造商:Maxim Integrated 类型: 存储容量:1024 bit 组织:1 K x 1 接口类型: 工作电流:5 uA 编程电压: 工作电源电压:2.8 V to 6 V 最大工作温度:+ 85 C 安装风格:Through Hole 封装 / 箱体:TO-92
AT27BV256-70TC 功能描述:IC OTP 256KBIT 70NS 28TSOP RoHS:否 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:32 系列:- 格式 - 存储器:闪存 存储器类型:FLASH 存储容量:1M (128K x 8) 速度:120ns 接口:并联 电源电压:2.7 V ~ 3.6 V 工作温度:0°C ~ 70°C 封装/外壳:32-LCC(J 形引线) 供应商设备封装:32-PLCC 包装:管件 其它名称:AT49BV00112JC
AT27BV256-70TI 功能描述:可擦除可编程ROM 1Mb (64Kx16) OTP 2.7-3.6V 70ns RoHS:否 制造商:Maxim Integrated 类型: 存储容量:1024 bit 组织:1 K x 1 接口类型: 工作电流:5 uA 编程电压: 工作电源电压:2.8 V to 6 V 最大工作温度:+ 85 C 安装风格:Through Hole 封装 / 箱体:TO-92
AT27BV256-70TU 功能描述:可擦除可编程ROM 1Mb (64Kx16) OTP 2.7-3.6V 70ns RoHS:否 制造商:Maxim Integrated 类型: 存储容量:1024 bit 组织:1 K x 1 接口类型: 工作电流:5 uA 编程电压: 工作电源电压:2.8 V to 6 V 最大工作温度:+ 85 C 安装风格:Through Hole 封装 / 箱体:TO-92