ATMEL AT5FC004-20 Datasheet
4-Megabyte
Flash Memory
PCMCIA Card
AT5FC004
Features
Single Power Supply
•
Read and Write Volta ge, 5 V ± 5%
High Performance
•
200 ns Maximum Access Time
6 ms Typical Sector Write
CMOS Low Power Consumption
•
20 mA Typical Active Current (Byte Mode)
400 µA Typic al Standby Current
Fully MS-DOS Compatible Flash Driver and Formatter
•
Virtual-Disk Flash Driver with 512 By tes/Sector
Random Read/Write to any Sector
No Erase Operation Required Prior to any Write
Zero Data Retention Power
•
Batteries not Required for Data Storage
PCMCIA/JEIDA 68-Pin Standard
•
Selectable Byte- or Word-Wide Configuration
High Re-programmable Endurance
•
Built-in Redundancy for Sector Replacement
Minimum 100,000 Write Cycles
Five Levels of Write Protection
•
Prevent Accidental Data Loss
Block Diagram
Pin Configuration
Pin Name Function
A0-A21 Addresses
D0-D15 Data
,
CE2,
CE1
WE, OE, REG
, WP
CD
BVD1, BVD2
Control Signals
Card Status
Description
Atmel’s Flash Memory Card provides the highest system level
performance for data and file storage solutions to the portable
PC market segment. Data files and a pplications programs ca n be
stored on the AT5FC004. This allows OEM manufacturers of
portable system to eliminate the weight, power consumption and
reliability issues associated with electro-mechanical disk-based
systems. The AT5FC004 r equires a single voltage powe r supply
for total system operation. No batteries are needed for data retention due to its Flash-based technology. S ince no high volta ge
(12 V) is required to perform any write operation, the
AT5FC004 is suitable for the emerging "mobile" personal systems.
The AT5FC004 is com pa tible with the 6 8-pin P CMC IA/ JE IDA
international standard. Atmel’s Flash Memory Cards can be
read in either a byte-wide or word-wide mode which allows for
flexible integration into various system platform s. It c an be rea d
like any typical PCMCIA SRAM or ROM card.
Block Diagram
The Card Information Structure (CIS) can be written by the
OEM or by Atmel at the attribute memory address space using a
format utility. The CIS appears at the beginning of the card’s
attribute memory space and defines the low-level organization
of data on the PC card. The AT5FC004 contains a separate
2 Kbyte EEPROM memory for the card’s attribute memory
space.
The third party software solutions such as AWARD Software’s
CardWare system and the SCM’s Flash File System (FFS),
enables Atmel’s Flash Memory Card to emulate the function of
essentially all the major brand personal computers that are
DOS/Windows compatible.
For some unique portable computers, such as the
HP200/100/95LX series, the software Driver and Formatter are
also available. The Atmel Driver and Formatter utilizes a selfcontained spare sector replacement algorithm, enabled by Atmel’s small 512-byte sectors, to achieve long term card
reliability and endurance.
2 AT5FC004
Absolute Maximum Ratings*
Storage Temperature........................-30°C to +70°C
Ambient Temperature with
Power Applied................................... -10°C to +70°C
Voltage with
Respect to Ground, All pins
(1)
V
............................................... -2.0 V to +7.0 V
CC
Output Short Cir c uit Current
(1)
.......... -2.0 V to +7.0 V
(2)
....................-200 mA
AT5FC004
*NOTICE: Stresses beyond those listed under "Absolute Maximum
Ratings" may cause perm an en t dam ag e to the card . T his is a stress
rating only and functional operation of the card at these or any
other conditions beyond those indicated in the
operational sections of this specification is not implied.
Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
Notes:
1. Minimum DC voltage on input or I/O pins is -0.5 V. During voltage transients, inputs may overshoot V
up to 20 ns. Maximum DC voltage on output and I/O pins is
V
+0.5 V. During voltage transitions, outputs may overshoot to
CC
V
+2.0 V for periods up to 20 ns.
CC
2. No more than one output shorted at a time. Durati on of the short circuit should not be greater than one second. Conditions equal
V
= 0.5 V or 5.0 V, VCC = Max.
OUT
to -2.0 V for periods of
SS
D.C. and A.C. Operating Range
AT5FC004-20
o
Operating Temperature (Case) Com. 0
Power Supply 5 V ± 5%
V
CC
Pin Capacitance
(f = 1 MHz, T = 25°C)
(1)
Symbol Parameter Conditions Typ Max Units
C
IN1
C
OUT
C
IN2
C
I/O
Note: 1. This parameter is characterized and is not 100% tested.
Address Capacitance VIN = 0 V 20 pF
Output Capacitance V
= 0 V 20 pF
OUT
Control Capacitance VIN = 0 (CE) 45 pF
I/O Capacitance V
= 0 V 20 pF
I/O
C - 70oC
3
PC Card Pin Assignments
I = Input, O = Output, I/O = Bi-directional, NC = No Connect
Pin Signal I/O Function
1 GND Ground
2 D3 I/O Data Bit 3
3 D4 I/O Data Bit 4
4 D5 I/O Data Bit 5
5 D6 I/O Data Bit 6
6 D7 I/O Data Bit 7
7
CE
1
I Card Enable 1
8 A10 I Address Bit 10
9
OE I Output Enable
10 A11 I Address Bit 11
11 A9 I Address Bi t 9
12 A8 I Address Bi t 8
13 A13 I Address Bit 13
14 A14 I Address Bit 14
15
WE I Write Enable
16 NC No Connect
17 V
CC
Power Supply
18 NC No Connect
19 A16 I Address Bit 16
20 A15 I Address Bit 15
21 A12 I Address Bit 12
22 A7 I Address Bi t 7
23 A6 I Address Bi t 6
24 A5 I Address Bi t 5
25 A4 I Address Bi t 4
26 A3 I Address Bi t 3
27 A2 I Address Bi t 2
28 A1 I Address Bi t 1
29 A0 I Address Bi t 0
30 D0 I/O Data Bit 0
31 D1 I/O Data Bit 1
32 D2 I/O Data Bit 2
33 WP O Write Protect
34 GND Ground
(1)
(1)
Pin Signal I/O Function
35 GND Groun d
36
CD
1
O Card Detect 1
37 D11 I/O Data Bit 11
38 D12 I/O Data Bit 12
39 D13 I/O Data Bit 13
40 D14 I/O Data Bit 14
41 D15 I/O Data Bit 15
42
CE
2
I Card Enable 2
43 NC No Connect
44 RFU Reserved
45 RFU Reserved
46 A17 I Address Bit 17
47 A18 I Address Bit 18
48 A19 I Address Bit 19
49 A20 I Address Bit 20
50 NC No Connect
51 V
CC
Power Supply
52 NC No Connect
53 NC No Connect
54 NC No Connect
55 NC No Connect
56 NC No Connect
57 NC No Connect
58 NC No Connect
59 NC No Connect
60 NC No Connect
61
62
63 BVD
REG I Register Select
BVD
O Ba ttery Voltage Detect 2
2
O Ba ttery Voltage Detect 1
1
64 D8 I/O Data Bit 8
65 D9 I/O Data Bit 9
66 D10 I/O Data Bit 10
67
CD
2
O Card Detect 2
68 GND Groun d
(1)
(1)
(2)
(2)
(1)
Notes: 1. Signal must not be connected between cards.
BVD = Internally pul led up.
2.
4 AT5FC004
AT5FC004
Pin Description
Symbol Name Type Function
A0-A21 Address Inputs Input Address Inputs are internally latched during write cycles.
Data Input/Outputs are internally latched on write cycles.
D0-D15 Data Input/Output
CE1, CE
2
Card Enable Input
Input/Output
Data outputs are latched during read cycles. Data pins
are active high. Whe n the memory card is de-selected or
the outputs are dis ab led the outputs float to tri-state.
Card Enable is active low. The memory card is
de-selected and power consumption is reduced to
standby levels whe n
memory card circuitry that controls the high and low byte
control logic o f the card, input buffers, segment decoders,
and associated memory devices.
CE is high. CE activates the internal
OE Output Enable Input
WE Write Enable Input
V
CC
GND Ground Ground
CD1, CD
WP Write Protect Output
NC No Connect Corresponding pin is not connected internally.
BVD1, BVD
REG Register Select Input
2
PC Card Power
Supply
Card Detect Output
Battery Voltage Detect Output Internally pulled up. (There is no battery in the card.)
2
Output Enable is active low and enables the data buffers
through the card outputs during read cycles.
Write Enable is active low and controls th e write function
to the memory arra y. The target address is latched on the
falling edge of the
latched on the rising edge of the pulse.
PC Card Power Supply for device operation
(5.0 V ± 5%)
When Card Detect 1 and 2 = Ground the system detects
the card.
Write Protect is active high and indicate s that all card
write operations are disabled by the write protect switch.
Provide access to Card Information Structure in the
Attribute Memory Device
WE pulse and the appropriate data is
5
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