L9822E(2002) Просмотр технического описания (PDF) - STMicroelectronics
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L9822E Datasheet PDF : 10 Pages
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L9822E
ELECTRICAL CHARACTERISTICS (Continued)
Symbol
Parameter
Test Conditions
INPUT BUFFER (SI, CE, SCLK and RESET pins)
VT–
Threshold Voltage at
VCC = 5V ± 10%
Falling Edge
SCLK only
VT+
Threshold Voltage at
VCC = 5V ± 10%
Rising Edge
SCLK only
VH
Hysteresis Voltage
VT+ – VT–
II
Input Current
VCC = 5.50V, 0 < VI < VCC
CI
Input Capacitance
0 < VI < VCC
OUTPUT BUFFER (SO pin)
VSOL
VSOH
Output LOW Voltage
Output HIGH Voltage
IO = 1.6mA
IO = 0.8mA
ISOtl
Output Tristate Leakage 0 < VO < VCC, CE Pin Held High,
Current
VCC = 5.25V
CSO
Output Capacitance
0 < VO < VCC
CE Pin Held High
ICC
Quiescent Supply
Current at VCC Pin
All Outputs Progr. ON. IO = 0.5A
per Output Simultaneously
SERIAL PERIPHERAL INTERFACE (see fig. 2, timing diagram)
fop
tlead
tlag
twSCKH
twSCKL
tsu
tH
tEN
tDIS
tV
trSO
tfSO
trSI
tfSI
tho
Operating Frequency
Enable Lead Time
Enable Lag Time
Clock HIGH Time
Clock LOW Time
Data Setup Time
Data Hold Time
Enable Time
Disable Time
Data Valid Time
Rise Time (SO output)
Fall Time (SO output)
Rise Time SPI
Inputs (SCK, SI, CE)
Fall Time SPI
Inputs (SCLK, SI, CE)
Output Data Hold Time
VCC = 20 to 70% CL = 200pF
VCC = 70 to 20% CL = 200pF
VCC = 20 to 70% CL = 200pF
VCC = 70 to 20% CL = 200pF
Min. Typ. Max. Unit
0.2VCC
0.6
0.85
– 10
V
V
0.7VCC V
4.15
V
2.5
V
+ 10 µA
20
nF
VCC
– 1.3V
– 20
0.4
V
V
20
µA
20
pF
10
mA
D.C.
250
250
200
200
75
75
250
250
100
200
200
0
2
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
50
ns
50
ns
ns
ns
µs
4/10
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