- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄180109 > M27C512-45XF6X (STMICROELECTRONICS) 64K X 8 UVPROM, 45 ns, CDIP28 PDF資料下載
參數(shù)資料
| 型號(hào)： | M27C512-45XF6X |
| 廠商： | STMICROELECTRONICS |
| 元件分類(lèi)： | PROM |
| 英文描述： | 64K X 8 UVPROM, 45 ns, CDIP28 |
| 封裝： | FRIT SEALED, WINDOWED, CERAMIC, DIP-28 |
| 文件頁(yè)數(shù)： | 2/18頁(yè) |
| 文件大?。?/td> | 115K |
| 代理商： | M27C512-45XF6X |
第1頁(yè)當(dāng)前第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)
M27C512
10/18
PRESTO IIB Programming Algorithm
PRESTO IIB Programming Algorithm allows the
whole array to be programmed with a guaranteed
margin, in a typical time of 6.5 seconds. This can
be achieved with STMicroelectronics M27C512
due to several design innovations described in the
M27C512 datasheet to improve programming effi-
ciency and to provide adequate margin for reliabil-
ity. Before starting the programming the internal
MARGIN MODE circuit is set in order to guarantee
that each cell is programmed with enough margin.
Then a sequence of 100
s program pulses are ap-
plied to each byte until a correct verify occurs. No
overprogram pulses are applied since the verify in
MARGIN MODE provides the necessary margin.
Program Inhibit
Programming of multiple M27C512s in parallel
with different data is also easily accomplished. Ex-
cept for E, all like inputs including GVPP of the par-
allel M27C512 may be common. A TTL low level
pulse applied to a M27C512’s E input, with VPP at
12.75V, will program that M27C512. A high level E
input inhibits the other M27C512s from being pro-
grammed.
Program Verify
A verify (read) should be performed on the pro-
grammed bits to determine that they were correct-
ly programmed. The verify is accomplished with G
at VIL. Data should be verified with tELQV after the
falling edge of E.
Figure 7. Programming and Verify Modes AC Waveforms
AI00737
tVPLEL
PROGRAM
DATA IN
A0-A15
E
GVPP
Q0-Q7
DATA OUT
tAVEL
tQVEL
tVCHEL
tVPHEL
tEHQX
tEHVPX
tELEH
tELQV
tEHAX
tEHQZ
VERIFY
VALID
VCC
Figure 8. Programming Flowchart
AI00738B
n= 0
Last
Addr
VERIFY
E = 100
s Pulse
++n
=25
++ Addr
VCC = 6.25V, VPP = 12.75V
FAIL
CHECK ALL BYTES
1st: VCC =6V
2nd: VCC = 4.2V
YES
NO
YES
NO
YES
NO
SET MARGIN MODE
RESET MARGIN MODE
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M27C800-70M1 | 512K X 16 OTPROM, 70 ns, PDSO44 |
| M27C801-70B6X | 1M X 8 OTPROM, 70 ns, PDIP32 |
| M27V102-90B6 | 64K X 16 OTPROM, 90 ns, PDIP40 |
| M27V256-100B1TR | 256 Kbit 32Kb x 8 Low Voltage UV EPROM and OTP EPROM |
| M27V256-100B6TR | 256 Kbit 32Kb x 8 Low Voltage UV EPROM and OTP EPROM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M27C512-70C1 | 功能描述:可擦除可編程ROM 512K (64Kx8) 70ns RoHS:否 制造商:Maxim Integrated 類(lèi)型: 存儲(chǔ)容量:1024 bit 組織:1 K x 1 接口類(lèi)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(fēng)格:Through Hole 封裝 / 箱體:TO-92 |
| M27C512-70C6 | 功能描述:可擦除可編程ROM 512K (64Kx8) 70ns RoHS:否 制造商:Maxim Integrated 類(lèi)型: 存儲(chǔ)容量:1024 bit 組織:1 K x 1 接口類(lèi)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(fēng)格:Through Hole 封裝 / 箱體:TO-92 |
| M27C512-70C6TR | 功能描述:電可擦除可編程只讀存儲(chǔ)器 512 KBIT 電可擦除可編程只讀存儲(chǔ)器 RoHS:否 制造商:Atmel 存儲(chǔ)容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時(shí)鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| M27C512-70XF1 | 功能描述:可擦除可編程ROM 512K (64Kx8) 70ns RoHS:否 制造商:Maxim Integrated 類(lèi)型: 存儲(chǔ)容量:1024 bit 組織:1 K x 1 接口類(lèi)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(fēng)格:Through Hole 封裝 / 箱體:TO-92 |
| M27C512-80XF1 | 功能描述:可擦除可編程ROM RO 511-M27C512-70XF RoHS:否 制造商:Maxim Integrated 類(lèi)型: 存儲(chǔ)容量:1024 bit 組織:1 K x 1 接口類(lèi)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(fēng)格:Through Hole 封裝 / 箱體:TO-92 |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。