参数资料
型号: AT27LV020A-12JU
厂商: Atmel
文件页数: 3/12页
文件大小: 0K
描述: IC OTP 2MBIT 120NS 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: 120ns
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
产品目录页面: 1457 (CN2011-ZH PDF)
Atmel AT27LV020A
4.
Absolute maximum ratings*
Temperature under bias . . . . . . . . . . . . . . . -40 ? C to +85 ? C
Storage temperature . . . . . . . . . . . . . . . . -65 ? C to +125 ? C
Voltage on any pin with
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)
Notes:
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
PGM
X (1)
Ai
Ai
V PP
X
V CC
V CC
Outputs
D OUT
Output disable
(2)
X
V IH
X
X
X
V CC
High Z
Standby
Rapid program
PGM inhibit
A9 = V H
(2)
(3)
PGM verify (3)
(3)
Product identification (3)(5)
V IH
V IL
V IL
V IH
V IL
X
V IH
V IL
X
V IL
X
V IL
V IH
X
X
X
Ai
Ai
X
(4)
A0 = V IH or V IL
X
V PP
V PP
V PP
X
V CC
V CC
V CC
V CC
V CC
High Z
D IN
D OUT
High Z
Identification code
A1 - A17 = 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 AT27LV020A-12
Industrial operating temperature (case)
V CC power supply
-40 ? C - 85 ? C
3.0V to 3.6V
5V ± 10%
3
0549H–EPROM–4/11
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