FLE21 White Electronic Designs Corporation, FLE21 Datasheet - Page 4

• Manufacturer Part Number: FLE21
• Description: Density = 8MB-64MB ;; Memory Device = Amd 29F032B ;; Organization = X16/x8 ;; Speed (ns) = 150,200 ;; Volt = 5
• Manufacturer: White Electronic Designs Corporation

PCMCIA Flash Memory Card
FLE Series
August 2000 Rev. 4 - ECO #13129
Card Signal Description
A0 - A25
DQ0 - DQ15
CE1#, CE2#
OE#
WE#
RDY/BSY#
CD1#, CD2#
WP
VPP1, VPP2
VCC
GND
REG#
RST
WAIT#
BVD1, BVD2
VS1, VS2
RFU
N.C.
Symbol
INPUT
INPUT/OUTPUT
INPUT
INPUT
INPUT
OUTPUT
N.C.
INPUT
OUTPUT
OUTPUT
OUTPUT
OUTPUT
INPUT
OUTPUT
Type
ADDRESS INPUTS: A0 through A25 enable direct addressing of
up to 64MB of memory on the card. Signal A0 is not used in word
access mode. A25 is the most significant bit
DATA INPUT/OUTPUT: DQ0 THROUGH DQ15 constitute the
bi-directional databus. DQ15 is the MSB.
CARD ENABLE 1 AND 2: CE1# enables even byte accesses, CE2#
enables odd byte accesses. Multiplexing A0, CE1# and CE2# allows
8-bit hosts to access all data on DQ0 - DQ7.
OUTPUT ENABLE: Active low signal gating read data from the
memory card.
WRITE ENABLE: Active low signal gating write data to the
memory card.
READY/BUSY OUTPUT: Indicates status of internally timed erase
or program algorithms. A high output indicates that the card is ready
to accept accesses. A low output indicates that one or more devices
in the memory card are busy with internally timed erase or write
activities.
CARD DETECT 1 and 2: Provide card insertion detection. These
signals are connected to ground internally on the memory card. The
host socket interface circuitry shall supply 10K-ohm or larger pull-up
resistors on these signal pins.
WRITE PROTECT: Write protect reflects the status of the Write
Protect switch on the memory card. WP set to high = write protected,
providing internal hardware write lockout to the Flash array.
If card does not include optional write protect switch, this signal will
be pulled low internally indicating write protect = "off".
PROGRAM/ERASE POWER SUPPLY: Not connected for 5V
only card.
CARD POWER SUPPLY: 5.0V for all internal circuitry.
GROUND: for all internal circuitry.
ATTRIBUTE MEMORY SELECT : provides access to Flash
memory card registers and Card Information Structure in the
Attribute Memory Plane.
RESET: Active high signal for placing card in Power-on default
state. Reset can be used as a Power-Down signal for the memory
array.
WAIT: This signal is pulled high internally for compatibility. No
wait states are generated.
BATTERY VOLTAGE DETECT: These signals are pulled high to
maintain SRAM card compatibility.
VOLTAGE SENSE: Notifies the host socket of the card's VCC
requirements. VS1 and VS2 are open to indicate a 5V card has been
inserted.
RESERVED FOR FUTURE USE
NO INTERNAL CONNECTION TO CARD: pin may be driven
or left floating
4
Name and Function
PC Card Products