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參數(shù)資料
| 型號： | M27C4002-70XN6TR |
| 廠商： | 意法半導體 |
| 英文描述： | 2A Standard Fixed Output LDO Regulators; Package: TO220FP-3; Constitution materials list: Packing style: Tube packaging; Package quantity: 50; Minimum package quantity: 500; |
| 中文描述： | 4兆位（256Kb的× 16）紫外線存儲器和OTP存儲器 |
| 文件頁數(shù)： | 8/24頁 |
| 文件大?。?/td> | 164K |
| 代理商： | M27C4002-70XN6TR |
Device operation
M27C4002
8/24
2
Device operation
The operating modes of the M27C4002 are listed in the Operating Modes table. A single
power supply is required in the read mode. All inputs are TTL levels except for V
PP
and 12V
on A9 for Electronic Signature.
2.1
Read mode
The M27C4002 has two control functions, both of which must be logically active in order to
obtain data at the outputs. Chip Enable (E) is the power control and should be used for
device selection. Output Enable (G) is the output control and should be used to gate data to
the output pins, independent of device selection. Assuming that the addresses are stable,
the address access time (t
AVQV
) is equal to the delay from E to output (t
ELQV
). Data is
available at the output after a delay of t
GLQV
from the falling edge of G, assuming that E has
been low and the addresses have been stable for at least t
AVQV
-t
GLQV
.
2.2
Standby mode
The M27C4002 has a standby mode which reduces the supply current from 50mA to 100μA.
The M27C4002 is placed in the standby mode by applying a CMOS high signal to the E
input. When in the standby mode, the outputs are in a high impedance state, independent of
the G input.
2.3
Two line output control
Because EPROMs are usually used in larger memory arrays, the product features a 2 line
control function which accommodates the use of multiple memory connection. The two line
control function allows:
The lowest possible memory power dissipation
Complete assurance that output bus contention will not occur.
●
●
For the most efficient use of these two control lines, E should be decoded and used as the
primary device selecting function, while G should be made a common connection to all
devices in the array and connected to the READ line from the system control bus. This
ensures that all deselected memory devices are in their low power standby mode and that
the output pins are only active when data is required from a particular memory device.
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| M27C4002 | 4 Mbit (256Kb x16) UV EPROM and OTP EPROM |
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相關代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M27C4002-80C1 | 功能描述:可擦除可編程ROM 4M (256Kx16) 80ns RoHS:否 制造商:Maxim Integrated 類型: 存儲容量:1024 bit 組織:1 K x 1 接口類型: 工作電流:5 uA 編程電壓: 工作電源電壓:2.8 V to 6 V 最大工作溫度:+ 85 C 安裝風格:Through Hole 封裝 / 箱體:TO-92 |
| M27C4002-80C6 | 功能描述:可擦除可編程ROM 4M (256Kx16) 80ns RoHS:否 制造商:Maxim Integrated 類型: 存儲容量:1024 bit 組織:1 K x 1 接口類型: 工作電流:5 uA 編程電壓: 工作電源電壓:2.8 V to 6 V 最大工作溫度:+ 85 C 安裝風格:Through Hole 封裝 / 箱體:TO-92 |
| M27C4002-80C6TR | 功能描述:可擦除可編程ROM 4M (256Kx16) 80ns RoHS:否 制造商:Maxim Integrated 類型: 存儲容量:1024 bit 組織:1 K x 1 接口類型: 工作電流:5 uA 編程電壓: 工作電源電壓:2.8 V to 6 V 最大工作溫度:+ 85 C 安裝風格:Through Hole 封裝 / 箱體:TO-92 |
| M27C4002-80XF1 | 功能描述:可擦除可編程ROM 4M (256Kx16) 80ns RoHS:否 制造商:Maxim Integrated 類型: 存儲容量:1024 bit 組織:1 K x 1 接口類型: 工作電流:5 uA 編程電壓: 工作電源電壓:2.8 V to 6 V 最大工作溫度:+ 85 C 安裝風格:Through Hole 封裝 / 箱體:TO-92 |
| M27C4002-90C1 | 功能描述:可擦除可編程ROM 4M (256Kx16) 90ns RoHS:否 制造商:Maxim Integrated 類型: 存儲容量:1024 bit 組織:1 K x 1 接口類型: 工作電流:5 uA 編程電壓: 工作電源電壓:2.8 V to 6 V 最大工作溫度:+ 85 C 安裝風格:Through Hole 封裝 / 箱體:TO-92 |
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