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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 AT27BV040 programs
in exactly the same way as a standard, 5V Atmel AT27C040, and uses the same programming equipment.
2.
Pin configurations
Pin name
A0 - A18
Function
Addresses
32-lead TSOP
Top view
32-lead PLCC
Top view
O0 - O7
Outputs
A11
A9
1
2
32
31
OE
A10
CE
OE
Chip enable
Output enable
A8
A13
A14
A17
3
4
5
6
30
29
28
27
CE
O7
O6
O5
A7
A6
A5
A4
5
6
7
8
2
28
27
26
A14
A13
A8
A
PGM
7
26
O4
A3
25
A11
VCC
VPP
A16
A15
8
9
10
11
25
24
23
22
O3
GND
O2
O1
A2
A1
A0
O0
10
11
12
13
24
23
22
21
OE
A10
CE
O7
3.
Switching considerations
A12
A7
A6
A5
A4
12
13
14
15
16
21
20
19
18
17
O0
A0
A1
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 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 AT27BV040
0346H–EPROM–4/11
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相关代理商/技术参数
AT27BV040-12LC
制造商:未知厂家 制造商全称:未知厂家 功能描述:x8 EPROM
AT27BV040-12LI
制造商:未知厂家 制造商全称:未知厂家 功能描述:x8 EPROM
AT27BV040-12PC
制造商:未知厂家 制造商全称:未知厂家 功能描述:x8 EPROM
AT27BV040-12PI
制造商:未知厂家 制造商全称:未知厂家 功能描述:x8 EPROM
AT27BV040-12TC
功能描述:IC OTP 4MBIT 120NS 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
AT27BV040-12TI
功能描述:可擦除可编程ROM 4Mb (512Kx8) OTP 2.7-3.6V 120ns 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
AT27BV040-12VC
功能描述:IC OTP 4MBIT 120NS 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
AT27BV040-12VI
功能描述:可擦除可编程ROM 4Mb (512Kx8) OTP 2.7-3.6V 120ns 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