参数资料
型号: AT27C020-55PU
厂商: Atmel
文件页数: 2/14页
文件大小: 0K
描述: IC OTP 2MBIT 55NS 32DIP
标准包装: 12
格式 - 存储器: EPROMs
存储器类型: EPROM OTP
存储容量: 2M (256K x 8)
速度: 55ns
接口: 并联
电源电压: 4.5 V ~ 5.5 V
工作温度: -40°C ~ 85°C
封装/外壳: 32-DIP(0.600",15.24mm)
供应商设备封装: 32-DIP
包装: 管件
产品目录页面: 1458 (CN2011-ZH PDF)
2.
Pin configurations
Pin name
A0 - A17
Function
Addresses
32-lead PLCC
Top view
32-lead PDIP
Top view
O0 - O7
CE
Outputs
Chip enable
VPP
A16
A15
1
2
3
32
31
30
VCC
PGM
A17
OE
PGM
Output enable
Program strobe
A7
A6
A5
A4
A3
A2
A1
A0
O0
5
6
7
8
9
10
11
12
13
29
28
27
26
25
24
23
22
21
A14
A13
A8
A9
A11
OE
A10
CE
07
A12
A7
A6
A5
A4
A3
A2
A1
A0
4
5
6
7
8
9
10
11
12
29
28
27
26
25
24
23
22
21
A14
A13
A8
A9
A11
OE
A10
CE
07
3.
System considerations
O0
O1
O2
GND
13
14
15
16
20
19
18
17
06
05
04
03
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 AT27C020
0570H–EPROM–4/11
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AT27C020-55TC 功能描述:IC OTP 2MBIT 55NS 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
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AT27C020-70DC 制造商:未知厂家 制造商全称:未知厂家 功能描述:x8 EPROM
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