CAT25640 CATALYST [Catalyst Semiconductor], CAT25640 Datasheet - Page 3

• Manufacturer Part Number: CAT25640
• Description: 64-Kb SPI Serial CMOS EEPROM
• Manufacturer: CATALYST [Catalyst Semiconductor]

A.C. CHARACTERISTICS
T
Power-Up Timing
Notes:
(1) AC Test Conditions:
(2) This parameter is tested initially and after a design or process change that affects the parameter.
(3) t
(4) t
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
A
Symbol
Symbol
= -40°C to +85°C, unless otherwise specified.
Input Pulse Voltages: 0.3V
Input rise and fall times: ≤ 10ns
Input and output reference voltages: 0.5V
Output load: current source I
t
PUR
WC
t
t
t
f
t
t
t
t
WC
t
t
t
t
WPH
t
RI
t
t
t
t
WPS
PUW
SCK
t
FI
t
CSS
CSH
PUR
WH
DIS
t
WL
t
HO
SU
HD
CD
HZ
CS
LZ
H
V
(2)
(2)
is the time from the rising edge of CS
(4)
and t
PUW
Parameter
Clock Frequency
Data Setup Time
Data Hold Time
SCK High Time
SCK Low Time
¯¯¯¯¯ to Output Low Z
HOLD
Input Rise Time
Input Fall Time
¯¯¯¯¯ Setup Time
HOLD
HOLD
¯¯¯¯¯ Hold Time
Output Valid from Clock Low
Output Hold Time
Output Disable Time
¯¯¯¯¯ to Output High Z
HOLD
CS
CS
CS
¯¯¯ Setup Time
WP
WP
¯¯¯ Hold Time
Write Cycle Time
Parameter
Power-up to Read Operation
Power-up to Write Operation
¯¯ High Time
¯¯ Setup Time
¯¯ Hold Time
are the delays required from the time V
(2)(3)
CC
OL max
to 0.7V
/I
OH max
CC
¯¯ after a valid write sequence to the end of the internal write cycle.
CC
; C
L
= 50pF
CC
(1)
is stable until the specified operation can be initiated.
3
V
Min.
DC
CC
40
40
80
80
10
50
50
50
10
10
0
0
= 1.8V-5.5V
Max.
100
50
75
50
5
2
2
5
V
Min.
DC
CC
20
20
40
40
10
15
15
15
10
10
0
0
= 2.5V-5.5V
Max.
Max.
Doc. No. MD-1128 Rev. B
1
1
10
25
40
20
25
2
2
5
CAT25640
Units
Units
MHz
ms
ms
ms
µs
µs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns