MX27L1000MC-10 View Datasheet(PDF) - Macronix International
Part Name
Description
Manufacturer
MX27L1000MC-10 Datasheet PDF : 15 Pages
| |||
MX27L1000
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 output
pins are only active when data is desired from a particular
memory device.
SYSTEM CONSIDERATIONS
During the switch between active and standby
conditions, transient current peaks are produced on the
rising and falling edges of Chip Enable. The magnitude
of these transient current peaks is dependent on the
output capacitance loading of the device. At a minimum,
a 0.1 uF ceramic capacitor (high frequency, low inherent
inductance) should be used on each device between
Vcc and GND to minimize transient effects. In addition,
to overcome the voltage drop caused by the inductive
effects of the printed circuit board traces on EPROM
arrays, a 4.7 uF bulk electrolytic capacitor should be
used between Vcc and GND for each eight devices. The
location of the capacitor should be close to where the
power supply is connected to the array.
MODE SELECT TABLE
PINS
MODE
CE
OE
PGM
A0
A9
Read
VIL
VIL
X
X
X
Output Disable
VIL
VIH
X
X
X
Standby (TTL)
VIH
X
X
X
X
Standby (CMOS)
VCC ± 0.3V X
X
X
X
Program
VIL
VIH
VIL
X
X
Program Verify
VIL
VIL
VIH
X
X
Program Inhibit
VIH
X
X
X
X
Manufacturer Code(3) VIL
VIL
X
VIL
VH
Device Code(3)
VIL
VIL
X
VIH
VH
NOTES:
1. VH = 12.0 V ± 0.5 V
2. X = Either VIH or VIL
3. A1 - A8 = A10 - A16 = VIL(For auto select)
4. See DC Programming Characteristics for VPP voltage during programming.
VPP
VCC
VCC
VCC
VCC
VPP
VPP
VPP
VCC
VCC
OUTPUTS
DOUT
High Z
High Z
High Z
DIN
DOUT
High Z
C2H
0EH
P/N: PM0238
3
REV. 3.6 , AUG. 20, 2001
|
|
Share Link: 