MX27C1610-10 Ver la hoja de datos (PDF) - Macronix International
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MX27C1610-10 Datasheet PDF : 19 Pages
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MX27C1610
TRUTH TABLE OF BYTE FUNCTION
BYTE MODE(BYTE = GND)
CE
OE
H
X
L
H
L
L
Q15/A-1
X
X
A-1 input
MODE
Non selected
Non selected
Selected
WORD MODE(BYTE = VCC)
CE
OE
H
X
L
H
L
L
Q15/A-1
High Z
High Z
DOUT
NOTE : X = H or L
MODE
Non selected
Non selected
Selected
Q0-Q7
High Z
High Z
DOUT
Q0-Q7
High Z
High Z
DOUT
SUPPLY CURRENT
Standby(ICC2)
Operating(ICC1)
Operating(ICC1)
SUPPLY CURRENT
Standby(ICC2)
Operating(ICC1)
Operating(ICC1)
FUNCTIONAL DESCRIPTION
READ MODE
The MX27C1610 has two control functions, both of which
must be logically satisfied in order to obtain data at the
outputs. Chip Enable (CE) is the power control and
should be used for device selection. Output Enable (OE)
is the output control and should be used to gate data to
the output pins, independent of device selection. As-
suming that addresses are stable, address access time
(tACC) is equal to the delay from CE to output (tCE).
Data is available at the outputs tOE after the falling edge
of OE's, assuming that CE has been LOW and ad-
dresses have been stable for at least tACC - t OE.
WORD-WIDE MODE
With BYTE/VPP at VCC ± 0.2V outputs Q0-7 present
data Q0-7 and outputs Q8-15 present data Q8-15, after
CE and OE are appropriately enabled.
BYTE-WIDE MODE
With BYTE/VPP at GND ± 0.2V, outputs Q8-15 are tri-
stated. If Q15/A-1 = VIH, outputs Q0-7 present data
bits Q8-15. If Q15/A-1 = VIL, outputs Q0-7 present data
bits Q0-7.
STANDBY MODE
The MX27C1610 has a CMOS standby mode which re-
duces the maximum VCC current to 100 uA. It is placed
in CMOS standby when CE is at VCC ± 0.2V. The
MX27C1610 also has a TTL-standby mode which re-
duces the maximum VCC current to 4 mA. It is placed
in TTL-standby when CE is at VIH. When in standby
mode, the outputs are in a high-impedance state, inde-
pendent of the OE input.
TWO-LINE OUTPUT CONTROL FUNCTION
To accommodate multiple memory connections, a two-
line control function is provided to allow for:
1. Low memory power dissipation,
2. Assurance that output bus contention will not occur.
It is recommended that CE be decoded and used as
the primary device-selecting function, while OE be made
a common connection to all devices in the array and
connected to the READ line from the system control
bus. This assures that all deselected memory devices
are in their low-power standby mode and that the out-
put pins are only active when data is desired from a
particular memory device.
P/N:PM0593
REV. 1.4, NOV. 19, 2002
2
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