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2.
Pin configurations
Pin name
A0 - A17
Function
Addresses
44-lead PLCC
Top view
40-lead PDIP
Top view
O0 - O15
CE
Outputs
Chip enable
VPP
CE
1
2
40
39
VCC
A17
O12
7
39
A13
O15
3
38
A16
OE
NC
Note:
Output enable
No connect
Both GND pins must be
connected
O11
O10
O9
O8
GND
NC
O7
O6
O5
O4
8
9
10
11
12
13
14
15
16
17
38
37
36
35
34
33
32
31
30
29
A12
A11
A10
A9
GND
NC
A8
A7
A6
A5
O14
O13
O12
O11
O10
O9
O8
GND
O7
O6
4
5
6
7
8
9
10
11
12
13
37
36
35
34
33
32
31
30
29
28
A15
A14
A13
A12
A11
A10
A9
GND
A8
A7
3.
System considerations
O5
O4
O3
O2
O1
O0
OE
14
15
16
17
18
19
20
27
26
25
24
23
22
21
A6
A5
A4
A3
A2
A1
A0
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 AT27C4096
0311J–EPROM–4/11
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相关代理商/技术参数
AT27C4096-90VC
功能描述:IC OTP 4MBIT 90NS 40VSOP 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
AT27C4096-90VI
功能描述:可擦除可编程ROM 4Mb (256Kx16) OTP 5V 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
AT27C512R-12DC
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AT27C512R-12DI
制造商:Atmel Corporation 功能描述:64K X 8 UVPROM, 120 ns, CDIP28
AT27C512R-12JC
功能描述:IC OTP 512KBIT 120NS 32PLCC 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
AT27C512R-12JI
功能描述:可擦除可编程ROM 512k bit
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
AT27C512R12PC
制造商:ATMEL 功能描述:AT27C512R-12PC
AT27C512R-12PC
功能描述:可擦除可编程ROM 512k bit
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