FM18L08-70-S Ramtron, FM18L08-70-S Datasheet - Page 7

• Manufacturer Part Number: FM18L08-70-S
• Description: F-RAM 256K (32Kx8) 70ns 3V
• Manufacturer: Ramtron

Specifications of FM18L08-70-S

• Memory Size: 256 KB
• Organization: 32 K x 8
• Interface: Parallel
• Access Time: 70 ns
• Operating Supply Voltage: 3 V to 3.6 V
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: SOIC-28
• Mounting Style: SMD/SMT
• Lead Free Status / Rohs Status: No

Read Cycle AC Parameters
Write Cycle AC Parameters
Notes
1
2
Data Retention
Power Cycle Timing
Capacitance
Rev. 3.5
Sept. 2009
Symbol
t
t
t
t
t
t
t
t
t
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
Data Retention
t
t
C
C
CE
CA
RC
PC
AS
AH
OE
HZ
OHZ
CA
CW
WC
PC
AS
AH
WP
DS
DH
WZ
WX
HZ
WS
WH
PU
PD
Symbol
Symbol
I/O
IN
This parameter is periodically sampled and not 100% tested.
The relationship between /CE and /WE determines if a /CE- or /WE-controlled write occurs. There is no timing
specification associated with this relationship.
V
Last Access Complete to V
Input/Output Capacitance (DQ)
Input Capacitance
(T
Parameter
Chip Enable Access Time ( to data valid)
Chip Enable Active Time
Read Cycle Time
Precharge Time
Address Setup Time
Address Hold Time
Output Enable Access Time
Chip Enable to Output High-Z
Output Enable to Output High-Z
Parameter
Chip Enable Active Time
Chip Enable to Write High
Write Cycle Time
Precharge Time
Address Setup Time
Address Hold Time
Write Enable Pulse Width
Data Setup
Data Hold
Write Enable Low to Output High Z
Write Enable High to Output Driven
Chip Enable to Output High-Z
Write Setup
Write Hold
Parameter
DD
(V
A
= 25 C , f=1 MHz, V
DD
(min.) to First Access Start
= 3.0V to 3.65V)
(T
A
= -40 C to + 85 C, V
Parameter
Parameter
(T
(T
A
A
= -40 C to + 85 C, V
= -40 C to + 85 C, V
DD
= 3.3V)
DD
(min.)
DD
= 3.0V to 3.65V)
Min
45
DD
DD
Min
Max
= 3.0V to 3.65V)
0
= 3.0V to 3.65V)
1
8
6
Years
Units
Units
Units
Min
Min
140
140
pF
pF
70
70
15
70
70
70
15
40
40
10
0
0
0
0
0
S
S
Notes
Notes
Notes
1
2,000
2,000
Max
Max
70
10
15
15
15
15
Units
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
FM18L08
Notes
Notes
1
1
1
1
1
2
2
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