CDC318A Datasheet, PDF (5/12 Pages) Texas Instruments – 1-LINE TO 18-LINE CLOCK DRIVER WITH I2C CONTROL INTERFACE

CDC318A
1-LINE TO 18-LINE CLOCK DRIVER
WITH I²C CONTROL INTERFACE
SCAS614 – SEPTEMBER 1998
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)^†
Supply voltage range, V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 4.6 V
Input voltage range, V_I (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 4.6 V
Input voltage range, V_I (SCLOCK, SDATA) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 6.5 V
Output voltage range, V_O (SDATA) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 6.5 V
Voltage range applied to any output in the high or power-off state, V_O . . . . . . . . . . . . . –0.5 V to V_CC +0.5 V
Current into any output in the low state (except SDATA), I_O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 mA
Current into SDATA in the low state, I_O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 mA
Input clamp current, I_IK (V_I < 0) (SCLOCK) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –50 mA
Output clamp current, I_OK (V_O < 0) (SDATA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –50 mA
Package thermal impedance, θ_JA (see Notes 2 and 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84°C/W
Storage temperature range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260_C
† _{Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and}
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed.
2. The package thermal impedance is calculated in accordance with EIA/JEDEC Std JESD51, except for through-hole packages,
which use a trace length of zero. The absolute maximum power dissipation allowed at TA = 55°C (in still air) is 1.2 W.
3. Thermal impedance (Θ_JA) can be considerably lower if the device is soldered on the PCB board with a copper layer underneath the
package. A simulation on a PCB board (3 in. × 3 in.) with two internal copper planes (1 oz. cu, 0.036 mm thick) and 0.071 mm cu
(202) in area underneath the package, resulted in Θ_JA = 60°C/W. This would allow 1.2 W total power dissipation at TA = 70°C.
recommended operating conditions (see Note 4)
MIN
VCC
VIH
3.3-V core supply voltage
High-level input voltage
A, OE
SDATA, SCLOCK
(see Note 3)
3.135
2
2.2
VIL
Low-level input voltage
A, OE
–0.3
SDATA, SCLOCK
(see Note 3)
0
IOH
High-level output current
IOL
Low-level output current
ri
Input resistance to VCC
Y outputs
Y outputs
SDATA, SCLOCK
(see Note 3)
f(SCL)
SCLOCK frequency
t(BUS)
Bus free time
4.7
tsu(START) START setup time
4.7
th(START) START hold time
4
tw(SCLL)
SCLOCK low pulse duration
4.7
tw(SCLH) SCLOCK high pulse duration
4
tr(SDATA) SDATA input rise time
tf(SDATA) SDATA input fall time
tsu(SDATA) SDATA setup time
250
th(SDATA) SDATA hold time
20
tsu(STOP) STOP setup time
4
TA
Operating free-air temperature
0
NOTE 4: The CMOS-level inputs fall within these limits: VIH min = 0.7 × VCC and VIL max = 0.3 × VCC.
TYP
MAX
3.465
VCC+0.3
5.5
UNIT
V
V
V
0.8 V
1.04 V
–36 mA
24 mA
140
kΩ
100 kHz
µs
µs
µs
µs
µs
1000 ns
300 ns
ns
ns
µs
70 °C
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