CDC319 Datasheet, PDF (9/11 Pages) Texas Instruments – 1-LINE TO 10-LINE CLOCK DRIVER WITH I2C CONTROL INTERFACE

CDC319
1-LINE TO 10-LINE CLOCK DRIVER
WITH I²C CONTROL INTERFACE
SCAS590 – DECEMBER 1997
PARAMETER MEASUREMENT INFORMATION
VO = 3.3 V
DUT
RL = 1 kΩ
Start
Condition
(S)
CL = 10 pF or
CL = 400 pF
GND
TEST CIRCUIT
Bit 7
MSB
4 to 6 Bytes for Complete Device
Programming
Bit 6
Bit 0
LSB
(R/W)
Acknowledge
(A)
Stop
Condition
(P)
tw(SCLL)
tw(SCLH)
tsu(START)
SCLOCK
tsu(START)
t(BUS)
tr
tf
tPHL
tPLH
0.7 VCC
0.3 VCC
SDATA
tf(SDATA)
th(START)
Start or
Repeat Start
Condition
tr(SDATA)
tsu(SDATA)
th(SDATA)
Repeat Start
Condition
(see Note A)
VOLTAGE WAVEFORMS
tsu(STOP)
Stop Condition
0.7 VCC
0.3 VCC
BYTE
1
DESCRIPTION
I2C address
2
Command (dummy value, ignored)
3
Byte count (dummy value, ignored)
4
I2C data byte 0
5
I2C data byte 1
6
I2C data byte 2
NOTES: A. The repeat start condition is not supported.
B. All input pulses are supplied by generators having the following characteristics: PRR ≤ 100 kHz, ZO = 50 Ω, tr ≥ 10 ns, tf ≥ 10 ns.
Figure 3. Propagation Delay Times, t_r and t_f
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