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參數(shù)資料
| 型號： | 27C800 |
| 廠商： | 意法半導體 |
| 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紫外線存儲器和OTP存儲器 |
| 文件頁數(shù)： | 10/17頁 |
| 文件大?。?/td> | 115K |
| 代理商： | 27C800 |
M27C800
10/17
Figure 8. Programming and Verify Modes AC Waveforms
tAVEL
VALID
AI01599
A0-A18
Q0-Q15
BYTEVPP
VCC
G
DATA IN
DATA OUT
E
tQVEL
tVPHAV
tVCHAV
tEHQX
tELEH
tGLQV
tQXGL
tGHQZ
tGHAX
PROGRAM
VERIFY
Figure 9. Programming Flowchart
AI01044B
n = 0
Last
Addr
VERIFY
E = 50
μ
s Pulse
++n
= 25
++ Addr
VCC= 6.25V, VPP= 12.5V
FAIL
CHECK ALL WORDS
BYTEVPP=VIH
1st: VCC= 6V
2nd: VCC= 4.2V
YES
NO
YES
NO
YES
NO
PRESTO III Programming Algorithm
The PRESTO III Programming Algorithm allows
the whole array to be programed with a guaran-
teed margin in a typical time of 26 seconds. Pro-
gramming with PRESTO III consists of applying a
sequence of 50
μ
s program pulses to each word
until a correct verify occurs (see Figure 9). During
programing and verify operation a MARGIN
MODE circuit is automatically activated to guaran-
tee that each cell is programed with enough mar-
gin. No overprogram pulse is applied since the
verify in MARGIN MODE provides the necessary
margin to each programmed cell.
Program Inhibit
Programming of multiple M27C800s in parallel
with different data is also easily accomplished. Ex-
cept for E, all likeinputs including G of the parallel
M27C800 may be common. A TTL low level pulse
applied to a M27C800’sE input and V
PP
at 12.5V,
will program that M27C800. A high level Einput in-
hibits the other M27C800s
grammed.
Program Verify
A verify (read) should be performed on the pro-
grammed bits to determine that theywere correct-
ly programmed. The verify is accomplished with E
at V
IH
and G at V
IL
, V
PP
at 12.5V and V
CC
at
6.25V.
from being pro-
相關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 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 27C8000-10 | 制造商:MCNIX 制造商全稱:Macronix International 功能描述:8M-BIT [1M x8] CMOS EPROM |
| 27C8000-12 | 制造商:MCNIX 制造商全稱:Macronix International 功能描述:8M-BIT [1M x8] CMOS EPROM |
| 27C8000-15 | 制造商:MCNIX 制造商全稱:Macronix International 功能描述:8M-BIT [1M x8] CMOS EPROM |
| 27C801 | 制造商:STMICROELECTRONICS 制造商全稱: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:Macronix International 功能描述:8M-BIT [1M x8/512K x16] CMOS OTP ROM |
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