FM6124 Ramtron Corporation, FM6124 Datasheet - Page 37

• Manufacturer Part Number: FM6124
• Description: Event Data Recorder With F-ram
• Manufacturer: Ramtron Corporation

Capacitance (T
Notes
1
2
Data Retention (V
AC Test Conditions
Input Pulse Levels
Input Rise and Fall Times
Input and Output Timing Levels
Output Load Capacitance
Diagram Notes
All start and stop timing parameters apply to both read and write cycles. Clock specifications are identical for read
and write cycles. Write timing parameters apply to slave address, word address, and write data bits. Functional
relationships are illustrated in the relevant data sheet sections. These diagrams illustrate the timing parameters only.
Read Bus Timing
Write Bus Timing
RSTB Timing
Rev. 4.0 (EOL)
July 2010
SDA
SCL
SCL
SDA
C
C
C
Parameter
Data Retention
Symbol
IO
XTL
CNT
This parameter is characterized but not tested.
The crystal attached to the X1/X2 pins must be rated as 12.5pF.
t
SU:STA
Parameter
Input/Output Capacitance
X1, X2 Crystal pin Capacitance
Max. Allowable Capacitance on CNT (polled mode)
A
= 25° C, f=1.0 MHz, V
DD
Start
= 3.0V to 3.6V)
Start
t
t
SU:STO
BUF
VDD
VTP
VRST
RST
Stop Start
10% and 90% of V
5 ns
0.5 V
100 pF
t
R
Stop Start
DD
DD
= 3.0V)
`
Min
t
10
F
t
RNR
t
VF
t
HIGH
t
HD:STA
DD
Units
Years
t
AA
t
SU:DAT
1/f
SCL
t
VR
t
Typ
HD:DAT
25
-
-
Notes
t
t
RPU
DH
t
LOW
Max
100
20
-
t
AA
Acknowledge
t
SU:DAT
Units
t
HD:DAT
pF
pF
pF
Acknowledge
t
SP
Notes
1, 2
1
Page 37 of 53
t
SP