參數(shù)資料
型號(hào): M27V401
廠商: 意法半導(dǎo)體
英文描述: 4 Mbit (512Kb x 8) Low Voltage UV EPROM and OTP EPROM(4Mb低壓UV EPROM和OTP EPROM)
中文描述: 4兆位(512KB的× 8)低壓紫外線存儲(chǔ)器和OTP存儲(chǔ)器(4Mb的低壓紫外可擦寫(xiě)可編程只讀存儲(chǔ)器和檢察官存儲(chǔ)器)
文件頁(yè)數(shù): 1/15頁(yè)
文件大?。?/td> 112K
代理商: M27V401
M27V401
4 Mbit (512Kb x 8) Low Voltage UV EPROM and OTP EPROM
May 1998
1/15
AI00695B
19
A0-A18
Q0-Q7
VPP
VCC
M27V401
G
VSS
8
E
Figure 1. LogicDiagram
LOW VOLTAGEREAD OPERATION:
3V to 3.6V
FASTACCESS TIME: 120ns
LOW POWER CONSUMPTION:
– Active Current 15mAat 5MHz
– StandbyCurrent 20
μ
A
PROGRAMMING VOLTAGE:12.75V
±
0.25V
PROGRAMMINGTIME: 100
μ
s/byte (typical)
ELECTRONIC SIGNATURE
– ManufacturerCode: 20h
– Device Code: 41h
DESCRIPTION
The M27V401 is a low voltage 4 Mbit EPROM
offeredin thetwo rangeUV (ultra violeterase)and
OTP (one time programmable). It is ideally suited
formicroprocessorsystemsrequiringlarge data or
programstorageandis organisedas 524,288by 8
bits.
The M27V401 operates in the read mode with a
supply voltage as low as 3V. The decrease in
operating power allows either a reduction of the
size of the battery or an increase in the time be-
tween batteryrecharges.
The FDIP32W (window ceramic frit-seal package)
hasa transparentlidwhichallowtheusertoexpose
the chip to ultraviolet light to erase the bit pattern.
Anew patterncan thenbe written to the device by
followingthe programming procedure.
A0-A18
Address Inputs
Q0-Q7
Data Outputs
E
Chip Enable
G
Output Enable
V
PP
Program Supply
V
CC
Supply Voltage
V
SS
Ground
Table1. SignalNames
PLCC32 (K)
1
32
FDIP32W (F)
TSOP32 (N)
8 x 20mm
32
1
PDIP32 (B)
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