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MR27V6466F Datasheet(PDF) 5 Page - OKI electronic componets

Part No. MR27V6466F
Description  4,194,304-Word x 16Bit or 2,097,152-Word x 32-Bit Synchronous One Time PROM
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Maker  OKI [OKI electronic componets]
Homepage  http://www.oki.com
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MR27V6466F Datasheet(HTML) 5 Page - OKI electronic componets

 
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PEDR27V6466F-01-08
1Semiconductor
MR27V6466F
5/39
PIN FUNCTION FOR PROGRAMMING OPERATION
(STO pin is high level)
Pin Name
Function
Description
STO
Static Operation
Must be set high for programming operation. Internal
resistance (around 10 k ohms) pulls the input level down to V
SS
for open state condition to be low level for synchronous read
operation.
AMPX
Address Multiplex
When AMPX is low, the addresses are not multiplexed and all
address bits must be supplied to A0 to A12 (Row Address) and
CAP0 to CAP8 (Column Address) simultaneously.
When AMPX is high, multiplexed address inputs are enabled
on A0 to A12.
A0 to A12
Address
Row address input.
RAS
Row Address Strobe
When AMPX is high, row address is latched at the rising egde
of RAS.
When AMPX is low, input is not used.
CAS
Column Address Atrobe
When AMPX is high, column address is latched at the rising
egde of CAS.
When AMPX is low, input is not used.
DQ0 to DQ15 Data Input/Output
Input of data for programming and output for program verify
and read data.
WORD
x32/x16 Organization Selection
The WORD pin defines the organization to be x16 (word
mode) or x32 (double word mode).
High = x32
Low = x16
This pin must be set low for programming operation.
CAP0 to
CAP8
Address Input
When WORD is low, High-Z state on CAP0 to CAP8 is held to
be input pins.
When AMPX is low, column address input.
When AMPX is high, input is not used.
OE
Output Enable
Control signal input for programming.
OE of conventional OTPs.
CE
Chip Enable
Control signal input for programming.
Function for programming is associated with conventional
OTPs.
V
CC/VSS
Power Supply/Ground
Power and ground for the input buffers and the core logic.
V
CCQ/VSSQ
Data Output Power/Ground
Power and ground for output.
V
pp
Program Power Supply
High voltage program power is supplied through V
PP pin.
When V
PP is higher than a predetermined voltage level
between V
CC + 0.5 V and VCC + 2 V, pin function alters to high
V
PP mode. To keep stable static read operation VPP pin must
be kept lower than V
CC + 0.5 V.
The persons who design socket adapter or make programming algorithm on the condition of omitting socket adapter
provided with OKI study this table. Other persons can ignore this table.
The functionality of programming must be checked with the specification of socket adapter that will be supplied by
OKI. MR27V6466F on the socket adapter is the same programming functionality as conventional OTPs.


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