NTE1853 View Datasheet(PDF) - NTE Electronics
Part Name
Description
Manufacturer
NTE1853 Datasheet PDF : 6 Pages
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DC and AC Electrical Characteristics (Cont’d): (VDD = 4.5 to 5.5V, VSS = 0, TA = –20° to +70°C
unless otherwise specified)
Parameter
DABD, CLBD, WSBD
Output Voltage, Low
Output Voltage, High
Load Capacitance
XSYS (Note 5)
Output Voltage, Low
Output Voltage, High
Load Capacitance
DOBM
Voltage Across a 75Ω Load via
Attenuator (Peak–to–Peak)
Symbol
Test Conditions
VOL
VOH
CL
IOL = 1.6mA
–IOH = 0.2mA
VOL
VOH
CL
VL(P–P)
Min Typ Max Unit
0–
0.4
V
2.4 –
VDD
V
––
50
pF
0–
0.4
V
2.4 –
VDD
V
––
50
pF
0.4 –
0.6
V
Note 5. The output current conditions are dependent on the drive conditions. When a crystal oscilla-
tor is being used, the output current capability is IOL = +1.6mA; IOH = –0.2mA. But if a slave
input is being used, the output currents are reduced to IOL = +0.2mA; IOH = –0.2mA.
Timing Characteristics:
Parameter
Operating Frequency (XTAL)
Inputs
SCAB, CLAB (Note 6)
SCAB Clock Frequency (Burst Clock)
CLAB Clock Frequency
Clock Low Time
Clock High Time
Input Rise Time
Input Fall Time
DAAB, WSAB, EFAB (Note 8)
Data Setup Time
Data Hold Time
Input Rise Time
Input Fall Time
Symbol Test Conditions
fXTAL
fSCAB
fCLAB
Note 7
tCKL
tCKH
tR
tF
tSU, tDAT
tHD, tDAT
tR
tF
Min
10.16
–
–
–
110
110
–
–
40
0
–
–
Typ
11.2896
2.8224
2.8224
1.4112
–
–
–
–
–
–
–
–
Max
12.42
–
–
–
–
–
20
20
–
–
20
20
Unit
MHz
MHz
MHz
MHz
ns
ns
ns
ns
ns
ns
ns
ns
Note 6. Reference levels = 0.8V and 2.0V
Note 7. The signal CLAB can run at either 2.8MHz (1/4 system clock) or 1.4MHz (1/8 system clock)
under typical conditions. It does not have a minimum or maximum frequency, but is limited
to being 1/4 or 1/8 of the system clock frequency.
Note 8. Input setup and hold times measured with respect to clock input from A–chip (CLAB). Refer-
ence levels = 0.8V and 2.0V.
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