X24C45 Datasheet, PDF (8/12 Pages) Xicor Inc. – Serial AUTOSTORE™ NOVRAM

EQUIVALENT A.C. LOAD CIRCUIT
Output
5V
919Ω
497Ω
100pF
X24C45
A.C. CONDITIONS OF TEST
Input pulse levels
Input rise and fall times
Input and output timing levels
0V to 3V
10ns
1.5V
A.C. CHARACTERISTICS (Over the recommended operating conditions unless otherwise specified.)
Read and Write Cycle Limits
Symbol
F_SK(3)
t_SKH
t_SKL
t_DS
t_DH
t_PD1
t_PD
t_Z
t_CES
t_CEH
t_CDS
Parameter
SK frequency
SK positive pulse width
SK negative pulse width
Data setup time
Data hold time
SK to data bit 0 valid
SK to data valid
Chip enable to output high Z
Chip enable setup
Chip enable hold
Chip deselect
Min.
400
400
400
80
800
350
800
Max.
1
375
375
1
Unit
MHz
ns
ns
ns
ns
ns
ns
µs
ns
ns
ns
POWER-UP TIMING
Symbol
t_PUR(4)
t_PUW(4)
Parameter
Power-up to read operation
Power-up to write or store operation
Max.
200
5
Unit
µs
ms
Notes: (3) SK rise and fall times must be less than 50ns.
(4) t_PUR and t_PUW are the delays required from the time V_CC is stable until the specified operation can be initiated. These parameters are
periodically sampled and not 100% tested.
8
FN8104.0
June 1, 2005