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參數(shù)資料
| 型號(hào)： | 27C800 |
| 廠(chǎng)商： | 意法半導(dǎo)體 |
| 英文描述： | 8 Mbit 1Mb x8 or 512Kb x16 UV EPROM and OTP EPROM |
| 中文描述： | 8兆1兆x8或512KB的x16紫外線(xiàn)存儲(chǔ)器和OTP存儲(chǔ)器 |
| 文件頁(yè)數(shù)： | 7/17頁(yè) |
| 文件大?。?/td> | 115K |
| 代理商： | 27C800 |
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M27C800
Figure 5. Word-Wide Read Mode AC Waveforms
Note: BYTEV
PP
= V
IH
.
AI01596B
tAXQX
tEHQZ
A0-A18
E
G
Q0-Q15
tAVQV
tGHQZ
tGLQV
tELQV
VALID
Hi-Z
VALID
Two Line Output Control
Because EPROMs are usually used in larger
memory arrays, this product features a 2-line con-
trol function which accommodates the use of mul-
tiple memory connection. The two-line control
function
a. the lowest possible memory power dissipation
b. complete assurance that output bus contention
will not occur.
For the most efficient use of these two control
lines, Eshould be decodedand used as theprima-
ry 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 controlbus. This ensures that all deselect-
ed memory devices are intheir low power standby
mode and that the output pins are only active
when data is required from a particular memory
device.
allows:
System Considerations
The power switching characteristics of Advanced
CMOS EPROMs require careful decoupling of the
supplies to the devices. The supply current I
CC
has three segments of importance to the system
designer: the standby current, the active current
and the transient peaks that are produced by the
falling and rising edges of E.
The magnitude of the transient current peaks is
dependent on the capacitive and inductive loading
of the device outputs. The associated transient
voltage peaks can be suppressed by complying
with the two line output control and by properly se-
lected decoupling capacitors. It is recommended
that a 0.1
μ
F ceramic capacitor is used on every
device between V
CC
and V
SS
.
This should be a high frequency type of lowinher-
ent inductance and should be placed as close as
possible to the device. In addition, a 4.7
μ
F electro-
lytic capacitor should be used between V
CC
and
V
SS
for every eight devices. This capacitor should
be mounted near the power supply connection
point. The purpose of this capacitor is to overcome
the voltagedrop causedby the inductive effects of
PCB traces.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 27C800 | 8M-BIT [1M x8] CMOS EPROM |
| 27C800 | 8-Megabit 512K x 16 or 1024K x 8 UV Erasable EPROM |
| 27C801 | 8 Mbit 1Mb x 8 UV EPROM and OTP EPROM |
| 27CX256WI-45 | x8 EPROM |
| 27CX256C-40 | x8 EPROM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 27C8000-10 | 制造商:MCNIX 制造商全稱(chēng):Macronix International 功能描述:8M-BIT [1M x8] CMOS EPROM |
| 27C8000-12 | 制造商:MCNIX 制造商全稱(chēng):Macronix International 功能描述:8M-BIT [1M x8] CMOS EPROM |
| 27C8000-15 | 制造商:MCNIX 制造商全稱(chēng):Macronix International 功能描述:8M-BIT [1M x8] CMOS EPROM |
| 27C801 | 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:8 Mbit 1Mb x 8 UV EPROM and OTP EPROM |
| 27C8100-10 | 制造商:MCNIX 制造商全稱(chēng):Macronix International 功能描述:8M-BIT [1M x8/512K x16] CMOS OTP ROM |
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