x9521v20iz-b Intersil Corporation, x9521v20iz-b Datasheet - Page 19

• Manufacturer Part Number: x9521v20iz-b
• Description: Dual Dcp, Eeprom Memory
• Manufacturer: Intersil Corporation

A.C. CHARACTERISTICS (See Figure 22, Figure 23, Figure 24)
A.C. TEST CONDITIONS
NONVOLATILE WRITE CYCLE TIMING
CAPACITANCE (T
Notes: 1. Typical values are for T
Notes: 2.Cb = total capacitance of one bus line in pF.
Notes: 3.Over recommended operating conditions, unless otherwise specified
Notes: 4.t
Notes: 5.This parameter is not 100% tested.
f
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
Cb
Input Pulse Levels
Input Rise and Fall Times
Input and Output Timing Levels
Output Load
SCL
IN
AA
BUF
LOW
HIGH
SU:STA
HD:STA
SU:DAT
HD:DAT
SU:STO
DH
R
F
SU:WP
HD:WP
Symbol
C
C
(5)
(5)
(5)
Symbol
OUT
IN
(5)
(5)
(5)
Symbol
(5)
t
WC
WC
(5)
the minimum cycle time to be allowed for any nonvolatile write by the user, unless Acknowledge Polling is used.
is the time from a valid STOP condition at the end of a write sequence to the end of the self-timed internal nonvolatile write cycle. It is
(4)
SCL Clock Frequency
Pulse width Suppression Time at inputs
SCL LOW to SDA Data Out Valid
Time the bus free before start of new transmission
Clock LOW Time
Clock HIGH Time
Start Condition Setup Time
Start Condition Hold Time
Data In Setup Time
Data In Hold Time
Stop Condition Setup Time
Data Output Hold Time
SDA and SCL Rise Time
SDA and SCL Fall Time
WP Setup Time
WP Hold Time
Capacitive load for each bus line
Output Capacitance (SDA, V1RO, V2RO, V3RO)
Input Capacitance (SCL, WP)
A
= 25°C, f = 1.0 MHz, V
Nonvolatile Write Cycle Time
19
A
= 25°C and V
Parameter
CC
Parameter
= 5.0V
Parameter
CC
= 5V)
X9521
Max
8
6
10ns
See Figure 20
0.1V CC to 0.9V CC
0.5V CC
Min.
20 +.1Cb
20 +.1Cb
Min
100
0.1
1.3
1.3
0.6
0.6
0.6
0.6
0.6
50
50
Units
0
0
0
pF
pF
(2)
(2)
Typ.
400kHz
5
(1)
Test Conditions
Max
400
300
300
400
0.9
Max.
V
10
V
OUT
IN
= 0V
= 0V
January 3, 2006
Units
Units
kHz
ms
FN8207.1
pF
ns
μs
μs
μs
μs
μs
μs
ns
μs
μs
ns
ns
ns
μs
μs