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参数资料
| 型号： | AT27LV256A-90JU |
| 厂商： | Atmel |
| 文件页数： | 3/12页 |
| 文件大小： | 0K |
| 描述： | IC OTP 256KBIT 90NS 32PLCC |
| 标准包装： | 32 |
| 格式 - 存储器： | EPROMs |
| 存储器类型： | EPROM OTP |
| 存储容量： | 256K (32K x 8) |
| 速度： | 90ns |
| 接口： | 并联 |
| 电源电压： | 3 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 |
Atmel AT27LV256A
4.
Absolute maximum ratings*
Temperature under bias . . . . . . . . . . . . . . . -40°C to +85°C
Storage temperature . . . . . . . . . . . . . . . . .-65°C to +125°C
Voltage on any pin with
respect to ground . . . . . . . . . . . . . . . . . . . -2.0V to +7.0V (1)
*NOTICE:
Stresses beyond those listed under “Absolute
maximum ratings” may cause permanent damage to
the device. This is a stress rating only, and functional
operation of the device at these or any other conditions
beyond those indicated in the operational sections of
this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may
affect device reliability.
Voltage on A9 with
respect to ground . . . . . . . . . . . . . . . . . -2.0V to +14.0V (1)
V PP supply voltage with
respect to ground . . . . . . . . . . . . . . . . . . -2.0V to +14.0V (1)
Note:
1. Minimum voltage is -0.6V DC, which may undershoot to -2.0V for pulses of less than 20ns. Maximum output pin voltage is
V CC + 0.75V DC, which may be exceeded if certain precautions are observed (consult application notes), and which may
overshoot to +7.0V for pulses of less than 20ns.
5.
DC and AC characteristics
Table 5-1.
Operating modes
Mode/Pin
Read (2)
CE
V IL
OE
V IL
Ai
Ai
V PP
V CC
V CC
V CC
Outputs
D OUT
X
Output disable
(2)
V IL
V IH
(1)
V CC
V CC
High Z
Standby
X
X
Rapid program
Optional PGM verify
PGM inhibit
X
(2)
(3)
PGM verify (3)
(3)
(3)
Product identification (3)(5)
V IH
V IL
X (1)
V IL
V IH
V IL
(1)
V IH
V IL
V IL
V IH
V IL
(1)
Ai
Ai
Ai
(1)
A9 = V H (4)
A0 = V IH or V IL
V CC
V PP
V PP
V CC
V PP
V CC
V CC
V CC
V CC
V CC
V CC
V CC
High Z
D IN
D OUT
D OUT
High Z
Identification code
A1 - A14 = V IL
Notes:
1. X can be V IL or V IH .
2. Read, output disable, and standby modes require 3.0V ? V CC ? 3.6V or 4.5V ? V CC ? 5.5V.
3. Refer to programming characteristics. Programming modes require V CC = 6.5V.
4. V H = 12.0 ± 0.5V.
5. Two identifier bytes may be selected. All Ai inputs are held low (V IL ) except A9, which is set to V H , and A0, which is tog-
gled low (V IL ) to select the manufacturer’s identification byte and high (V IH ) to select the device code byte.
Table 5-2.
DC and AC operating conditions for read operation
Atmel AT27LV256A
-90
Industrial operating temperature (case)
V CC power supply
-40°C - 85°C
3.0V to 3.6V
5V ? 10%
3
0547H–EPROM–4/11
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AT27LV256A-90JU SL383 | 制造商:Atmel Corporation 功能描述:EPROM OTP 256KBIT 32KX8 90NS 32PLCC - Tape and Reel |
| AT27LV256A-90JU-T | 功能描述:90NS, PLCC, IND TEMP, GREEN 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:90ns 存储器接口:并联 电压 - 电源:3 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 标准包装:1 |
| AT27LV256A-90RC | 功能描述:可擦除可编程ROM 256k 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 |
| AT27LV256A-90RI | 功能描述:可擦除可编程ROM 256Kb (32Kx8) OTP 3V 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 |
| AT27LV256A-90RU | 功能描述:可擦除可编程ROM 256Kb (32Kx8) OTP 3V 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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