X25644 Datasheet, PDF (9/15 Pages) Xicor Inc. – Programmable Watchdog Timer w/Serial E 2 PROM

X25644/46
X25324/26
X25164/66
CAPACITANCE T_A = +25°C, f = 1MHz, V_CC = 5V.
Symbol
Test
C_OUT⁽²⁾ Output Capacitance (SO, RESET/RESET)
C_IN⁽²⁾
Input Capacitance (SCK, SI, CS, WP)
Notes: (1) V_IL min. and V_IH max. are for reference only and are not tested.
(2) This parameter is periodically sampled and not 100% tested.
Max.
8
6
Units
pF
pF
Conditions
V_OUT = 0V
V_IN = 0V
7029 FRM T11
EQUIVALENT A.C. LOAD CIRCUIT AT 5V V_CC
5V
5V
1.64KΩ
3.3KΩ
OUTPUT
RESET/RESET
A.C. TEST CONDITIONS
Input Pulse Levels
V_CC x 0.1 to V_CC x 0.9
Input Rise and Fall Times
10ns
Input and Output Timing Level
V_CC x0.5
7029 FRM T12
1.64KΩ
100pF
30pF
A.C. CHARACTERISTICS (Over recommended operating conditions, unless otherwise specified)
Data Input Timing
Symbol
f_SCK
t_CYC
t_LEAD
t_LAG
t_WH
t_WL
t_SU
t_H
t_RI⁽³⁾
t_FI⁽³⁾
t_CS
t_WC⁽⁴⁾
Parameter
Clock Frequency
Cycle Time
CS Lead Time
CS Lag Time
Clock HIGH Time
Clock LOW Time
Data Setup Time
Data Hold Time
Input Rise Time
Input Fall Time
CS Deselect Time
Write Cycle Time
Voltage Range
2.7V–5.5V
1.8V–3.6V
2.7V–5.5V
1.8V–3.6V
2.7V–5.5V
1.8V–3.6V
2.7V–5.5V
1.8V–3.6V
2.7V–5.5V
1.8V–3.6V
2.7V–5.5V
1.8V–3.6V
2.7V–5.5V
1.8V–3.6V
2.7V–5.5V
1.8V–3.6V
2.7V–5.5V
1.8V–3.6V
2.7V–5.5V
1.8V–3.6V
2.7V–5.5V
1.8V–3.6V
2.7V–5.5V
1.8V–3.6V
Min.
0
500
1000
250
500
250
500
200
400
200
400
50
50
500
Max.
2
1
100
100
10
9
Units
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ms
7029 FRM T13