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參數(shù)資料
| 型號(hào)： | M27C257 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | ADDRESS LATCHED 256K (32K x 8) UV EPROM and OTP EPROM |
| 中文描述： | 地址鎖存256K（32K的× 8）紫外線存儲(chǔ)器和OTP存儲(chǔ)器 |
| 文件頁(yè)數(shù)： | 1/13頁(yè) |
| 文件大?。?/td> | 143K |
| 代理商： | M27C257 |
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M87C257
ADDRESS LATCHED
256K (32K x 8) UV EPROM and OTP EPROM
June 1996
1/13
AI00928B
15
A0-A14
ASVPP
Q0-Q7
VCC
M87C257
G
E
VSS
8
Figure 1. Logic Diagram
INTEGRATED ADDRESS LATCH
FAST ACCESS TIME: 45ns
LOW POWER “CMOS” CONSUMPTION:
– Active Current 30mA
– Standby Current 100
μ
A
PROGRAMMING VOLTAGE: 12.75V
ELECTRONIC SIGNATURE for AUTOMATED
PROGRAMMING
PROGRAMMING TIMES of AROUND 3sec.
(PRESTO II ALGORITHM)
DESCRIPTION
The M87C257 is a high speed 262,144 bit UV
erasable and electrically programmable EPROM.
The M87C257 incorporates latches for all address
inputs to minimize chip count, reduce cost, and
simplify the design of multiplexed bus systems.
The Window Ceramic Frit-Seal Dual-in-Line pack-
age has a transparent lid which allows the user to
expose the chip to ultraviolet light to erase the bit
pattern. A new pattern can then be written to the
device by following the programming procedure.
For applications where the content is programmed
only one time and erasure is not required, the
M87C257 is offered in Plastic Leaded Chip Carrier,
package.
A0 - A14
Address Inputs
Q0 - Q7
Data Outputs
E
Chip Enable
G
Output Enable
ASV
PP
Address Strobe / Program Supply
V
CC
Supply Voltage
V
SS
Ground
Table 1. Signal Names
PLCC32 (C)
1
28
FDIP28W (F)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M27C320-80M1 | 32 Mbit 4Mb x8 or 2Mb x16 OTP EPROM |
| M27C320-120M1 | 32 Mbit 4Mb x8 or 2Mb x16 OTP EPROM |
| M27C320-100N1 | 32 Mbit 4Mb x8 or 2Mb x16 OTP EPROM |
| M27C320 | 32 Mbit 4Mb x8 or 2Mb x16 OTP EPROM |
| M27C320-100M1 | 32 Mbit 4Mb x8 or 2Mb x16 OTP EPROM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M27C322-100F1 | 功能描述:可擦除可編程ROM 32M (2Mx16) 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 |
| M27C322-100S1 | 功能描述:可擦除可編程ROM 32M (2Mx16) 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 |
| M27C4001-10B1 | 功能描述:可擦除可編程ROM 4M (512Kx8) 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 |
| M27C4001-10B1E | 制造商:STMicroelectronics 功能描述:4 MBIT (512KB X 8) UV EPROM AND OTP EPROM |
| M27C4001-10C1 | 功能描述:可擦除可編程ROM 4M (512Kx8) 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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