- 您現在的位置：買賣IC網 > PDF目錄180109 > M27C512-15B3X (STMICROELECTRONICS) 64K X 8 OTPROM, 150 ns, PDIP28 PDF資料下載
參數資料
| 型號： | M27C512-15B3X |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | PROM |
| 英文描述： | 64K X 8 OTPROM, 150 ns, PDIP28 |
| 封裝： | 0.600 INCH, PLASTIC, DIP-28 |
| 文件頁數： | 2/18頁 |
| 文件大小： | 115K |
| 代理商： | M27C512-15B3X |
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PDF資料 |
PDF描述 |
|---|---|
| M27C512-25XB3X | 64K X 8 OTPROM, 150 ns, PDIP28 |
| M27C512-45N3X | 64K X 8 OTPROM, 45 ns, PDSO28 |
| M27C512-25XC3X | 64K X 8 OTPROM, 150 ns, PQCC32 |
| M27C512-45XF6X | 64K X 8 UVPROM, 45 ns, CDIP28 |
| M27C800-70M1 | 512K X 16 OTPROM, 70 ns, PDSO44 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| M27C512-15B6 | 功能描述:可擦除可編程ROM 512K (64Kx8) 150ns RoHS:否 制造商:Maxim Integrated 類型: 存儲容量:1024 bit 組織:1 K x 1 接口類型: 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 安裝風格:Through Hole 封裝 / 箱體:TO-92 |
| M27C512-15C1 | 功能描述:可擦除可編程ROM 512K (64Kx8) 150ns RoHS:否 制造商:Maxim Integrated 類型: 存儲容量:1024 bit 組織:1 K x 1 接口類型: 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 安裝風格:Through Hole 封裝 / 箱體:TO-92 |
| M27C512-15C1TR | 功能描述:可擦除可編程ROM 512K (64Kx8) 150ns RoHS:否 制造商:Maxim Integrated 類型: 存儲容量:1024 bit 組織:1 K x 1 接口類型: 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 安裝風格:Through Hole 封裝 / 箱體:TO-92 |
| M27C512-15C6 | 功能描述:可擦除可編程ROM 512K (64Kx8) 150ns RoHS:否 制造商:Maxim Integrated 類型: 存儲容量:1024 bit 組織:1 K x 1 接口類型: 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 安裝風格:Through Hole 封裝 / 箱體:TO-92 |
| M27C51215F1 | 制造商:STMicroelectronics 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復。