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參數(shù)資料
| 型號： | M27V402-150N5TR |
| 廠商： | 意法半導體 |
| 英文描述： | Switch Mode Power Supply; Series:ZWS; Output Voltage:12VDC; Output Power Max:10W; Output Current:0.85A; Number of Outputs:1; Supply Voltage Max:265VAC; Supply Voltage Min:85VAC |
| 中文描述： | 4兆位的256Kb × 16低壓紫外線存儲器和OTP存儲器 |
| 文件頁數(shù)： | 8/15頁 |
| 文件大?。?/td> | 101K |
| 代理商： | M27V402-150N5TR |
M27V402
8/15
PRESTO II Programming Algorithm
PRESTO II Programming Algorithm allows the
whole array to be programmed with a guaranteed
margin, in a typical time of 26.5 seconds. Pro-
gramming with PRESTO II consists of applying a
sequence of 100
μ
s program pulses to each byte
until a correct verify occurs (see Figure 7). During
programming and verify operation, a MARGIN
MODE circuit is automatically activated in order to
guarantee that each cell is programmed with
enough margin. No overprogram pulse is applied
since the verify in MARGIN MODE at V
CC
much
higher than 3.6V provides necessary margin to
each programmed cell.
Program Inhibit
Programming of multiple M27V402s in parallel
with different data is also easily accomplished. Ex-
cept for E, all likeinputs including G of the parallel
M27V402 may be common. A TTL low level pulse
applied to a M27V402’s E input, with V
PP
at
12.75V, will program that M27V402. A high level E
input inhibits the other M27V402s 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 G
at V
IL
, E at V
IH
, V
PP
at 12.75V and V
CC
at 6.25V.
Figure 6. Programming and Verify Modes AC Waveforms
tAVEL
VALID
AI00730
A0-A17
Q0-Q15
VPP
VCC
G
DATA IN
DATA OUT
E
tQVEL
tVPHEL
tVCHEL
tEHQX
tELEH
tGLQV
tQXGL
tGHQZ
tGHAX
PROGRAM
VERIFY
Figure 7. Programming Flowchart
AI00726C
n = 0
Last
Addr
VERIFY
E = 100
μ
s Pulse
++n
= 25
++ Addr
VCC= 6.25V, VPP= 12.75V
FAIL
CHECK ALL WORDS
1st: VCC= 6V
2nd: VCC= 4.2V
YES
NO
YES
NO
YES
NO
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| M27V402-120N5TR | Switch Mode Power Supply; Output Power:100W; No. of Outputs:1; Output 1 VDC :12VDC; Output Current 1:8.5A; Power Supply Mounting:Open Frame; Approval Bodies:UL, CSA, CE; External Depth:222mm; External Width:62mm RoHS Compliant: Yes |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| M27V402-150N6TR | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:4 Mbit 512Kb x 8 Low Voltage OTP EPROM |
| M27V402-180K1TR | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:4 Mbit 512Kb x 8 Low Voltage OTP EPROM |
| M27V402-180K4TR | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:4 Mbit 512Kb x 8 Low Voltage OTP EPROM |
| M27V402-180K5TR | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:4 Mbit 512Kb x 8 Low Voltage OTP EPROM |
| M27V402-180K6TR | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:4 Mbit 512Kb x 8 Low Voltage OTP EPROM |
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