English
Language : 

CAT25C64_06 Datasheet, PDF (3/16 Pages) Catalyst Semiconductor – 64K-Bit SPI Serial CMOS EEPROM
◁
CAT25C64
PIN CAPACITANCE (1)
Applicable over recommended operating range from TA=25˚C, f=1.0 MHz, VCC=+5.0V (unless otherwise noted).
Symbol
Test Conditions
Max.
Conditions
COUT Output Capacitance (SO)
8
CIN
Input Capacitance (CS, SCK, SI, WP, HOLD)
6
VOUT=0V
VIN=0V
Units
pF
pF
A.C. CHARACTERISTICS
SYMBOL PARAMETER
CAT25C64-1.8
VCC =
1.8V - 5.5V
Min. Max.
CAT25C64
VCC =
2.5V - 5.5V
VCC =
4.5V - 5.5V
Min. Max. Min. Max.
tSU
Data Setup Time
50
50
20
tH
Data Hold Time
50
50
20
tWH SCK High Time
250
125
40
tWL
SCK Low Time
250
125
40
fSCK Clock Frequency
DC
1
DC 3
DC 10
tLZ
HOLD to Output Low Z
50
50
50
tRI(1) Input Rise Time
2
2
2
tFI(1) Input Fall Time
2
2
2
tHD
HOLD Setup Time
100
100
40
tCD
HOLD Hold Time
100
100
40
tWC(3) Write Cycle Time
10
10
5
tV
Output Valid from Clock Low
250
125
40
tHO
Output Hold Time
0
0
0
tDIS Output Disable Time
250
250
75
tHZ
HOLD to Output High Z
150
100
50
tCS
CS High Time
500
250
100
tCSS CS Setup Time
500
250
100
tCSH CS Hold Time
500
250
100
Test
Conditions UNITS
ns
ns
ns
ns
MHz
ns
µs
µs
ns
ns
CL = 50pF ms
(2)
ns
ns
ns
ns
ns
ns
ns
Power-Up Timing(4)(5)
Symbol
Parameter
Max.
tPUR
Power-up to Read Operation
1
tPUW
Power-up to Write Operation
1
Note:
(1) This parameter is tested initially and after a design or process change that affects the parameter.
(2) AC Test Conditions:
Input Pulse Voltages: 0.3VCC to 0.7VCC
Input rise and fall times: ≤10ns
Input and output reference voltages: 0.5VCC
Output load: current source IOL max/IOH max; CL=50pF
(3) tWC is the time from the rising edge of CS after a valid write sequence to the end of the internal write cycle.
(4) This parameter is tested initially and after a design or process change that affects the parameter.
(5) tPUR and tPUW are the delays required from the time VCC is stable until the specified operation can be initiated.
Units
ms
ms
© 2006 by Catalyst Semiconductor, Inc.
3
Characteristics subject to change without notice
Doc. No. 1112, Rev. B
 ▷