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| 型号： | AT27BV020-90JU |
| 厂商： | Atmel |
| 文件页数： | 2/13页 |
| 文件大小： | 0K |
| 描述： | IC OTP 2MBIT 90NS 32PLCC |
| 标准包装： | 32 |
| 格式 - 存储器： | EPROMs |
| 存储器类型： | EPROM OTP |
| 存储容量： | 2M (256K x 8) |
| 速度： | 90ns |
| 接口： | 并联 |
| 电源电压： | 2.7 V ~ 3.6 V，4.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 32-LCC（J 形引线） |
| 供应商设备封装： | 32-PLCC |
| 包装： | 管件 |
and guarantees reliable programming. Programming time is typically only 100 μs/byte. The integrated product
identification code electronically identifies the device and manufacturer. This feature is used by industry-standard
programming equipment to select the proper programming algorithms and voltages. The AT27BV020 programs in exactly
the same way as a standard, 5V Atmel AT27C020, and uses the same programming equipment.
2.
Pin configurations
32-lead TSOP
32-lead PLCC
Pin name
A0 - A17
Function
Addresses
Top view
Top view
O0 - O7
Outputs
A
32
O
CE
OE
PGM
NC
Chip enable
Output enable
Program strobe
No connect
A9
A
A3
A
C
P
VCC
2
3
7
3
30
29
2
27
2
2
A0
C
O7
O
O
O
O3
A7
A6
A5
A4
A3
A2
5
6
7
8
9
10
29
28
27
26
25
24
A14
A13
A8
A9
A11
OE
VPP
9
2
A1
11
23
A10
A
A
0
23
22
O2
O
A0
O0
12
13
22
21
CE
O7
3.
System considerations
A2
A7
A
A
A
2
3
2
20
9
7
O0
A0
A
A2
A3
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 nonconformance.
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 AT27BV020
0902G–EPROM–4/11
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AT27BV020-90TC | 功能描述:IC OTP 2MBIT 90NS 32TSOP 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 |
| AT27BV020-90TI | 功能描述:可擦除可编程ROM 2Mb(256Kx8) OTP 2.7-3.6V 90ns 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 |
| AT27BV020-90TU | 功能描述:可擦除可编程ROM 2Mb(256Kx8) OTP 2.7-3.6V 90ns 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 |
| AT27BV020-90VC | 功能描述:IC OTP 2MBIT 90NS 32VSOP 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 |
| AT27BV020-90VI | 功能描述:可擦除可编程ROM 2Mb(256Kx8) OTP 2.7-3.6V 90ns 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 |
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