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参数资料
| 型号： | M27V800-150K1TR |
| 厂商： | 意法半导体 |
| 英文描述： | 8 Mbit 1Mb x8 or 512Kb x16 Low Voltage UV EPROM and OTP EPROM |
| 中文描述： | 8兆1兆x8或512KB的x16低压紫外线可擦写可编程只读存储器和OTP存储器 |
| 文件页数： | 9/16页 |
| 文件大小： | 108K |
| 代理商： | M27V800-150K1TR |
9/16
M27V800
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 at V
CC
much higher than
3.6V provides the neccessary margin to each pro-
grammed cell.
Program Inhibit
Programming of multiple M27V800s in parallel
with different data is also easily accomplished. Ex-
cept for E, all likeinputs including G of the parallel
M27V800 may be common. A TTL low level pulse
applied to a M27V800’s E input and V
PP
at 12.5V,
will program that M27V800.A high level E input in-
hibits the other M27V800s from being pro-
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.
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
AI00901
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= 3.3V
YES
NO
YES
NO
YES
NO
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| M27V800-150B1TR | 8 Mbit 1Mb x8 or 512Kb x16 Low Voltage UV EPROM and OTP EPROM |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| M27V800-150M1TR | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8 Mbit 1Mb x8 or 512Kb x16 Low Voltage UV EPROM and OTP EPROM |
| M27V800-150XB1TR | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8 Mbit 1Mb x8 or 512Kb x16 Low Voltage UV EPROM and OTP EPROM |
| M27V800-150XF1TR | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8 Mbit 1Mb x8 or 512Kb x16 Low Voltage UV EPROM and OTP EPROM |
| M27V800-150XK1TR | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8 Mbit 1Mb x8 or 512Kb x16 Low Voltage UV EPROM and OTP EPROM |
| M27V800-150XM1TR | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8 Mbit 1Mb x8 or 512Kb x16 Low Voltage UV EPROM and OTP EPROM |
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