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參數(shù)資料
| 型號(hào)： | M27C4001-90XB6 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 4 Mbit (512Kb x 8) UV EPROM and OTP EPROM |
| 中文描述： | 4兆位（512KB的× 8）紫外線存儲(chǔ)器和OTP存儲(chǔ)器 |
| 文件頁數(shù)： | 10/24頁 |
| 文件大?。?/td> | 149K |
| 代理商： | M27C4001-90XB6 |
Device operation
M27C4001
10/25
Figure 5.
Programming Flowchart
2.7
Program Inhibit
Programming of multiple M27C4001s in parallel with different data is also easily
accomplished. Except for E, all like inputs including G of the parallel M27C4001 may be
common. A TTL low level pulse applied to a M27C4001's E input, with V
PP
at 12.75V, will
program that M27C4001. A high level E input inhibits the other M27C4001s from being
programmed.
2.8
Program Verify
A verify (read) should be performed on the programmed bits to determine that they were
correctly 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.
2.9
Electronic Signature
The Electronic Signature (ES) mode allows the reading out of a binary code from an
EPROM that will identify its manufacturer and type. This mode is intended for use by
programming equipment to automatically match the device to be programmed with its
corresponding programming algorithm. The ES mode is functional in the 25°C ± 5°C
ambient temperature range that is required when programming the M27C4001. To activate
the ES mode, the programming equipment must force 11.5V to 12.5V on address line A9 of
the M27C4001 with V
PP
= V
CC
= 5V. Two identifier bytes may then be sequenced from the
device outputs by toggling address line A0 from V
IL
to V
IH
. All other address lines must be
held at V
IL
during Electronic Signature mode. Byte 0 (A0 = V
IL
) represents the manufacturer
code and byte 1 (A0 = V
IH
) the device identifier code. For the STMicroelectronics
M27C4001, these two identifier bytes are given in
Table 3
and can be read-out on outputs
Q7 to Q0.
AI00760B
n = 0
Last
Addr
VERIFY
E = 100
μ
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
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| M27C4002-10B1 | 功能描述:可擦除可編程ROM 4M (256Kx16) 100ns RoHS:否 制造商:Maxim Integrated 類型: 存儲(chǔ)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(fēng)格:Through Hole 封裝 / 箱體:TO-92 |
| M27C4002-10C1 | 功能描述:可擦除可編程ROM 4M (256Kx16) 100ns RoHS:否 制造商:Maxim Integrated 類型: 存儲(chǔ)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(fēng)格:Through Hole 封裝 / 箱體:TO-92 |
| M27C4002-10C1 | 制造商:STMicroelectronics 功能描述:PROM OTP CMOS 4MB 27C4002 PLCC44 |
| M27C4002-10C1TR | 功能描述:可擦除可編程ROM 4M (256Kx16) 100ns RoHS:否 制造商:Maxim Integrated 類型: 存儲(chǔ)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(fēng)格:Through Hole 封裝 / 箱體:TO-92 |
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