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參數(shù)資料
| 型號(hào)： | M27C64A-10F6 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 64 Kbit (8Kb x8) UV EPROM and OTP EPROM |
| 中文描述： | 64千位（8KB的× 8）紫外線存儲(chǔ)器和OTP存儲(chǔ)器 |
| 文件頁數(shù)： | 9/22頁 |
| 文件大?。?/td> | 124K |
| 代理商： | M27C64A-10F6 |
M27C64A
Device operation
9/22
be a high frequency capacitor of low inherent inductance and should be placed as close to
the device as possible. In addition, a 4.7μF bulk electrolytic capacitor should be used
between V
CC
and V
SS
for every eight devices. The bulk capacitor should be located near the
power supply connection point. The purpose of the bulk capacitor is to overcome the voltage
drop caused by the inductive effects of PCB traces.
2.5
Programming
When delivered (and after each erasure for UV EPROM), all bits of the M27C64A are in the
"1" state. Data is introduced by selectively programming "0"s into the desired bit locations.
Although only "0"s will be programmed, both "1"s and "0"s can be present in the data word.
The only way to change a "0" to a "1" is by die exposition to ultraviolet light (UV EPROM).
The M27C64A is in the programming mode when V
PP
input is at 12.5V, E is at V
IL
and P is
pulsed to V
IL
. The data to be programmed is applied to 8 bits in parallel to the data output
pins. The levels required for the address and data inputs are TTL. V
CC
is specified to be 6V
± 0.25V.
2.6
High-speed programming
The high speed programming algorithm, described in
Figure 4
, rapidly programs the
M27C64A using an efficient and reliable method, particularly suited to the production
programming environment. An individual device will take around 1 minute to program.
Figure 4.
Programming Flowchart
AI01167
n = 1
Last
Addr
VERIFY
P = 1ms Pulse
++n
> 25
++ Addr
VCC = 6V, VPP = 12.5V
FAIL
CHECK ALL BYTES
1st: VCC = 6V
2nd: VCC = 4.2V
YES
NO
YES
NO
YES
NO
P = 3ms Pulse by n
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PDF描述 |
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| M27C64A-10K1 | 64 Kbit (8Kb x8) UV EPROM and OTP EPROM |
| M27C64A-10K6 | 64 Kbit (8Kb x8) UV EPROM and OTP EPROM |
| M27C64A-15F1 | 64 Kbit (8Kb x8) UV EPROM and OTP EPROM |
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| M27C64A-15K1 | 64 Kbit (8Kb x8) UV EPROM and OTP EPROM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M27C64A-15F1 | 功能描述:可擦除可編程ROM 64K (8Kx8) 150ns 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 |
| M27C64A15FI | 制造商:ST MICRO 功能描述:* |
| M27C64A20F1 | 制造商:STME 功能描述: |
| M27C64A-20F1 | 功能描述:可擦除可編程ROM 64K (8Kx8) 200ns 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 |
| M27C64A-20F6 | 功能描述:可擦除可編程ROM 64K (8Kx8) 200ns 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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