參數(shù)資料
型號(hào)： X25646S8I
英文描述： Programmable Watchdog Timer w/Serial E 2 PROM
中文描述： 可編程看門狗定時(shí)器瓦特/ 2 PROM的序列位置
文件頁(yè)數(shù)： 9/15頁(yè)
文件大?。?/td> 76K
代理商： X25646S8I
X25644/46
X25324/26
X25164/66
9
A.C. CHARACTERISTICS
(Over recommended operating conditions, unless otherwise specified)
Data Input Timing
7029 FRM T13
Symbol
Parameter
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.
Max.
2
1
Units
f
SCK
Clock Frequency
0
MHz
t
CYC
Cycle Time
500
1000
250
500
250
500
200
400
200
400
ns
t
LEAD
CS Lead Time
ns
t
LAG
CS Lag Time
ns
t
WH
Clock HIGH Time
ns
t
WL
Clock LOW Time
ns
t
SU
Data Setup Time
50
ns
t
H
Data Hold Time
50
ns
t
RI
(3)
Input Rise Time
100
ns
t
FI
(3)
Input Fall Time
100
ns
t
CS
CS Deselect Time
500
ns
t
WC
(4)
Write Cycle Time
10
ms
EQUIVALENT A.C. LOAD CIRCUIT AT 5V V
CC
A.C. TEST CONDITIONS
7029 FRM T12
5V
OUTPUT
100pF
5V
3.3K
RESET/RESET
30pF
1.64K
1.64K
Input Pulse Levels
V
CC
x 0.1 to V
CC
x 0.9
10ns
V
CC
x0.5
Input Rise and Fall Times
Input and Output Timing Level
CAPACITANCE T
A
= +25
°
C, f = 1MHz, V
CC
= 5V.
Symbol
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.
7029 FRM T11
Test
Max.
Units
Conditions
C
OUT
(2)
Output Capacitance (SO, RESET/RESET)
8
pF
V
OUT
= 0V
C
IN
(2)
Input Capacitance (SCK, SI, CS, WP)
6
pF
V
IN
= 0V
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