参数资料
型号: AT28C256F-15JI
厂商: Atmel
文件页数: 5/25页
文件大小: 0K
描述: IC EEPROM 256KBIT 150NS 32PLCC
标准包装: 32
格式 - 存储器: EEPROMs - 并行
存储器类型: EEPROM
存储容量: 256K (32K x 8)
速度: 150ns
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-LCC(J 形引线)
供应商设备封装: 32-PLCC
包装: 管件
AT28C256
5. DC and AC Operating Range
Operating Temperature
Ind.
AT28C256-15
-40°C - 85°C
AT28C256-20
AT28C256-25
AT28C256-35
(Case)
V CC Power Supply
Mil.
-55°C - 125°C
5V ± 10%
-55°C - 125°C
5V ± 10%
-55°C - 125°C
5V ± 10%
-55°C - 125°C
5V ± 10%
6. Operating Modes
Write
Mode
Read
(2)
Standby/Write Inhibit
Write Inhibit
Write Inhibit
Output Disable
CE
V IL
V IL
V IH
X
X
X
OE
V IL
V IH
X (1)
X
V IL
V IH
WE
V IH
V IL
X
V IH
X
X
I/O
D OUT
D IN
High Z
High Z
Chip Erase
V IL
V H
(3)
V IL
High Z
Notes: 1. X can be V IL or V IH .
2. Refer to AC programming waveforms.
3. V H = 12.0V ± 0.5V.
7. Absolute Maximum Ratings*
Temperature under Bias ................................ -55°C to +125°C
Storage Temperature..................................... -65°C to +150°C
All Input Voltages
(including NC Pins)
with Respect to Ground ...................................-0.6V to +6.25V
All Output Voltages
with Respect to Ground .............................-0.6V to V CC + 0.6V
Voltage on OE and A9
with Respect to Ground ...................................-0.6V to +13.5V
8. DC Characteristics
*NOTICE:
Stresses beyond those listed under “Absolute
Maximum Ratings” may cause permanent dam-
age 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
Symbol
I LI
I LO
I SB1
I SB2
I CC
Parameter
Input Load Current
Output Leakage Current
V CC Standby Current CMOS
V CC Standby Current TTL
V CC Active Current
Condition
V IN = 0V to V CC + 1V
V I/O = 0V to V CC
CE = V CC - 0.3V to V CC + 1V
CE = 2.0V to V CC + 1V
f = 5 MHz; I OUT = 0 mA
Ind.
Mil.
Min
Max
10
10
200
300
3
50
Units
μA
μA
μA
μA
mA
mA
V IL
V IH
Input Low Voltage
Input High Voltage
2.0
0.8
V
V
V OL
V OH
Output Low Voltage
Output High Voltage
I OL = 2.1 mA
I OH = -400 μA
2.4
0.45
V
V
5
0006M–PEEPR–12/09
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